Biodivers Conserv (2010) 19:1933–1961
DOI 10.1007/s10531-010-9813-1
ORIGINAL PAPER
Secondary forests on anthropogenic soils in Brazilian
Amazonia conserve agrobiodiversity
André Braga Junqueira • Glenn Harvey Shepard Jr.
Charles R. Clement
•
Received: 3 July 2009 / Accepted: 13 February 2010 / Published online: 6 March 2010
Ó Springer Science+Business Media B.V. 2010
Abstract Throughout Brazilian Amazonia anthropogenic soils that are the product of
pre-Columbian settlements are called Terra Preta de Índio (Indian Dark Earths, TPI). These
soils are dramatically different from surrounding soils due to long-term human activity, but
there is little information about how secondary forest succession is affected by these
differences. We tested if community structure (density, richness and basal area), floristic
composition and domesticated species’ richness and density were similar between TPI and
non-anthropogenic soils (NAS) in 52 25 9 10 m secondary forest plots in different
successional stages near three traditional communities along the middle Madeira River,
Central Amazonia. We sampled 858 woody individuals on TPI (77 domesticated) and 1095
on NAS (27 domesticated); 550 understory palms on TPI (169 domesticated) and 778 on
NAS (123 domesticated). We found 179 species on TPI (10 domesticated), 190 on NAS
(8 domesticated), and 74 (25%) in both environments. Although community structure on
TPI and NAS was fairly similar, they showed significantly distinctive floristic compositions, both for woody individuals and understory palms. The density and richness of
domesticated species was significantly higher on TPI than on NAS for woody individuals,
but not for palms. The intimate long-term association of TPI with human activity has lead
to the formation of distinct secondary forests and has favored the concentration of
domesticated populations of crop species. Hence, secondary forests on anthropogenic soils
concentrate agrobiodiversity, offering advantages for in situ conservation of genetic
resources, and are unique ecosystems that should be considered in conservation efforts.
A. B. Junqueira (&) C. R. Clement
Coordenação de Pesquisas em Ciências Agronômicas, Instituto Nacional de Pesquisas da Amazônia,
Avenida André Araújo, 2936, Manaus, Amazonas 69060-001, Brazil
e-mail: abjunqueira@gmail.com
C. R. Clement
e-mail: cclement@inpa.gov.br
G. H. Shepard Jr.
Departamento de Antropologia, Museu Paraense Emı́lio Goeldi, Avenida Perimetral 1901, Belém,
Pará 66077-830, Brazil
e-mail: gshepardjr@gmail.com
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Keywords Community structure Amazonian dark earths Plant domestication
Secondary succession Succession management Traditional resource management
Abbreviations
ANCOVA
EMBRAPA (Empresa Brasileira
de Pesquisa Agropecuária)
IBGE (Instituto Brasileiro
de Geografia e Estatı́stica)
INPA (Instituto Nacional
de Pesquisas da Amazônia)
IUSS
LTSP/INPA (Laboratório Temático
de Solos e Plantas)
MANOVA
NAS
NMDS
PCA
TPI (Terra Preta de Índio)
Analysis of covariance
The Portuguese acronym for the Brazilian
Agricultural Research Corporation)
The Portuguese acronym for the Brazilian Institute
of geography and statistics
The Portuguese acronym for the National Research
Institute for Amazonia
International Union of Soil Science.
the Portuguese acronym for the Soil and Plant
Thematic Laboratory of INPA
Multivariate analysis of variance
Non-anthropogenic soils.
Non-metric multidimensional scaling
Principal components analysis
The Portuguese acronym for Indian black earths,
also called Indian dark earths and Amazonian dark
earths
Introduction
Throughout Brazilian Amazonia anthropogenic soils associated with pre-Columbian
indigenous settlements are called Terra Preta de I´ndio (Indian Dark Earths, hereafter TPI;
Woods and Denevan 2009). TPI is widely distributed in Amazonia, occurring in patches
that may vary from a single hectare to hundreds of hectares (Smith 1980). TPI patches are
especially common in Brazilian Amazonia (Sombroek et al. 2002), but they occur also in
Colombia, Peru, Venezuela and the Guianas (Eden et al. 1984; Andrade 1986). Most TPI
patches were formed between 500 and 2,500 years ago (Neves et al. 2003), but the specific
cultural and ecological processes that created these soils are still poorly understood and are
the focus of an intense, multidisciplinary scientific effort (Woods and Denevan 2009).
Although edaphic conditions can be highly variable among different TPI patches
(Falcão et al. 2009), a few properties are common to almost all of them when compared to
adjacent soils: higher levels of phosphorous, calcium, organic matter, pH and cation
exchange capacity (Lehmann et al. 2003a). These characteristics make these soils more
suitable for agriculture than other upland (i.e., non-flooded) Amazonian soils (Glaser
2007), which generally have low fertility and soil organic matter contents (Chauvel et al.
1987; Lehmann et al. 2003a). For this reason, TPI is frequently associated with specific and
more intensive forms of agriculture (German 2003a, b; Fraser and Clement 2008; Fraser
et al. 2009), although fallows are still an important part of the agricultural systems.
There are suggestions that the secondary forest succession on TPI occurs differently
than on other upland soils (Clement et al. 2003). Early successional stages on TPI showed a
higher percentage of soil coverage by new weeds, higher weed species richness, and a
higher relative proportion of annual and leguminous plants when compared with adjacent
non-anthropogenic soils (Major et al. 2005). When abandoned, swiddens on TPI are
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colonized by a characteristic group of aggressive weeds, including several species typically
associated with human-disturbed environments (Major et al. 2005). Local farmers recognize diverse stages of forest regrowth on TPI through indicator plant species, even when
vegetation is dense (Moran 1981; Sombroek et al. 2002; German 2003b). Farmers also
recognize vegetation structural characteristics associated with TPI, such as lower canopies
and denser understories (Woods and McCann 1999), smaller average diameter of adult
trees, and a greater abundance of vines and plants with spines (German 2003b). In the
Xingu River basin, the proximity to TPI patches was identified as one of the factors
determining the occurrence of secondary forests dominated by lianas (Balée and Campbell
1990). Preliminary observations by Samuel Almeida and colleagues (Clement et al. 2009)
indicate that old-growth forests [at least 300 years old (Kern 1996)] on TPI at Caxiuanã
(Pará, Brazil) show differences in forest structure and species composition when compared
to old-growth forests on non-anthropogenic soils. On the other hand, Paz-Rivera and Putz
(2009) found few differences in the density of 17 useful tree species when comparing old
secondary forests (at least 140 years old, probably much older) on anthropogenic and nonanthropogenic soils in a lowland forest in Bolivia. However, these authors suggested that
on anthropogenic soils large individuals of long-lived species may be remnants of ancient
cultivation (Paz-Rivera and Putz 2009). Still, apart from the experimental study of Major
et al. (2005), the preliminary observations by Samuel Almeida and colleagues (Clement
et al. 2009) and the quantitative ‘‘useful-species-focused’’ approach of Paz-Rivera and Putz
(2009), all other observations are derived from qualitative and ethnographic data, and lack
more detailed ecological investigation to be validated.
Clement et al. (2003) raised the hypothesis that TPI could act as agrobiodiversity
reservoirs, areas that concentrate considerable genetic diversity of native and exotic species with domesticated populations due to TPI’s long-term association with human activity.
There is a growing need to locate areas of high diversity of crop wild relatives, which may
or may not also be areas of high landrace diversity, in order to propose adequate conservation strategies for these areas (Maxted et al. 2008). We used an ecological approach to
test the hypothesis that secondary forests on TPI concentrate agrobiodiversity, predicting
that these environments would show a greater abundance and richness of species with
domesticated populations when compared to adjacent secondary forests on non-anthropogenic soils.
This is the first study that addressed the question of secondary succession on TPI. We
compared secondary forests in several successional stages on TPI and nearby nonanthropogenic soils (hereafter NAS) with regards to forest structure (density, species
richness and basal area) and species composition. We also identified TPI indicator species
and tested the hypothesis that secondary forests on TPI concentrate agrobiodiversity.
Methods
Study site
The study was carried out in three riverside communities located in the municipality of
Manicoré, on the middle Madeira River, Amazonas state, Brazil: Água Azul (5°490 5700 S;
61°330 5600 W); Barreira do Capanã (5°500 5100 S; 61°400 1100 W); and Terra Preta do Atininga
(5°380 1900 S; 61°30 600 W; Fig. 1). The local climate is characterized as Af in the Köppen
system, with mean annual temperatures between 27 and 28°C, and a main annual rainfall of
about 2,500 mm, with a marked dry season from June to September. The natural vegetation
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Fig. 1 Location of study sites. White triangles represent the three communities where plots for secondary
forest sampling were established, and the white circle indicates the town of Manicoré, located along the
middle Madeira River, Amazonas, Brazil
of the region is composed mainly of closed canopy evergreen terra firme forest, with
savannas further from the rivers and seasonally flooded forests along the rivers (IBGE
2004; Silva and Pereira 2005; Rapp Py-Daniel 2007).
The predominant soils are ferralsols, but patches of acrisols, lixisols and podzols occur,
and a ‘‘strip’’ of gleysols extends along the Madeira River floodplain (IBGE 2001; soil
nomenclature sensu IUSS 2007). The occurrence of anthropogenic soils is common on the
Madeira River (Simões and Lopes 1987; Sombroek et al. 2002; Kern et al. 2003; Fraser
et al. 2009).
These communities are inhabited by caboclos, descendants of immigrants that arrived in
the region from northeastern Brazil during the rubber boom in the beginning of the
Twentieth century and intermarried to different extents with local indigenous people.
About 42, 38 and 36 families live in Água Azul, Barreira do Capanã and Terra Preta do
Atininga, respectively. Major subsistence and economic activities include shifting cultivation (predominantly manioc, Manihot esculenta, Euphorbiaceae), hunting, fishing and
the extraction of Brazil nut (Bertholletia excelsa, Lecythidaceae) and rubber (Hevea
brasiliensis, Euphorbiaceae).
All three communities are located on or close to TPI patches that vary in area from eight
to about 35 ha. A mosaic of agricultural areas and secondary forests in various stages of
regrowth occupies the whole area.
Sample design
In each community we used the ‘‘snowball’’ technique (Bernard 2002) to select key
informants, recognized by local residents as having considerable knowledge about the
types of vegetation and soils in the region. With the key informants we walked along trails
through agricultural areas, secondary forests, primary forests and other areas used by the
community. During this process the informants were stimulated to identify the different
vegetation and soils types with local nomenclature. Based on this information, we selected
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areas of secondary vegetation in various successional stages in areas recognized by local
residents as anthropogenic soils (TPI) and non-anthropogenic soils (NAS), in which we
established 25 3 10 m plots. Local informants provided us with information on each
plot’s land-use history and time of regeneration since the last agricultural use (hereafter
‘‘plot age’’). Given the detailed local knowledge about the extension of anthropogenic
soils, its well-defined position in the landscape and the relative scarcity of secondary
forests on TPI, we consider that our sampling effort was adequate and site selection was
not significantly affected by local farmer’s biases (such as choosing TPI areas with
obviously different secondary forests to please the researchers).
All plots were established in secondary forests following shifting cultivation, which is
practiced by local residents in a radius of 2–3 km from the community centers. The
intensity of previous land-use was highly variable among plots, both on NAS and on TPI.
Independently of the soil, some areas are more intensively used than others, which may be
due to many different factors, e.g., because they are closer to habitation areas or to sources
of water. Nevertheless, we assumed that this heterogeneity in previous land-use is more or
less evenly distributed among TPI and NAS plots. Also, even during the fallow period,
secondary forests both on TPI and on NAS are subject to some kind of management, such
as the extraction of firewood, fruits and medicinals, as well as the elimination of undesired
species (spiny lianas, for example) and encouragement of others (useful and/or domesticated species), all of which may alter the course of secondary succession (Denevan and
Padoch 1987; Irvine 1989). However, some characteristics of previous and present land use
that might affect successional patterns are related to the type of soil [e.g., the more
intensive land use that originated TPI patches in pre-Columbian times (Denevan 2001), or
the generally shorter fallow period associated with TPI in present shifting cultivation
(Fraser et al. 2009)].
We sampled plots in secondary forests with ages varying from five to 30 years, and we
established about the same number of plots in areas recognized locally as TPI and NAS. At
Água Azul and Terra Preta do Atininga we established 16 plots on each (eight on TPI and
eight on NAS), and at Barreira do Capanã we established 20 plots (12 on TPI and eight on
NAS), totaling 52 plots sampled (1.3 ha). Although we pre-classified each plot as TPI or
NAS, the delimitation of the two treatments used in all statistical analysis was done
a posteriori, using results from physical and chemical soil analysis and observation of field
characteristics.
At Água Azul, plots were located from 30 to 1,390 m from each other; at Barreira do
Capanã, from 50 to 2,330 m; and at Terra Preta do Atininga, from 50 to 2,000 m. Due to
the occurrence of TPI in relatively small patches (compared to surrounding NAS) and to its
intensive use for living and for shifting cultivation, secondary forests on TPI were not
abundant on the landscape, which imposed restrictions on plot distribution and lead to
some plots quite close to one another. However, we consider these plots as independent
samples since they are located in secondary forests with different ages, which makes them
easily distinguishable. Also, we did spatial autocorrelation analyses to account for possible
effects of distance on floristic composition.
Data collection
In each plot we sampled (1) all woody individuals with diameter at breast height (DBH)
greater than 5 cm (including lianas), and (2) all palms more than 1 m high and with DBH
smaller than 5 cm (hereafter understory palms). Many of the understory palms are seedlings or juveniles of species sampled as woody individuals when their DBH was
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appropriate. All woody individuals had their DBH measured. All individuals sampled (both
woody and understory palms) were collected for botanical identification, which was done
with the aid of specialists, taxonomic keys, identification guides, and by comparing the
vouchers collected to specimens deposited at the INPA herbarium (Manaus, Brazil). Fertile
specimens were deposited at the INPA herbarium, and non-fertile material was identified
where possible and stored in an adjacent working collection, given the herbarium policy of
not accepting non-fertile material.
In each plot we collected five soil samples (the top 20 cm after removing the litter
layer), obtained every 5 m along the long axis of the plot, which were bulked to produce a
composite soil sample of each plot. Samples were air-dried, cleaned of roots and sieved
through a 2 mm sieve. Analysis included soil texture (percentage of sand, clay and silt), pH
(H2O and KCl), macronutrients (P, K, Ca, Mg) and micronutrients (Mn, Zn and Fe). All
analyses were done at the LTSP/INPA, according to EMBRAPA (1999) methodology.
Data analysis
The results of the soil analyses were analyzed with a Principal Component Analysis (PCA)
biplot. Data expressed in percentages (amount of sand, silt and clay) were transformed by
the arcsine of the square root divided by 100 (Sokal and Rohlf 1981). PCAs were done
separately for each community, since TPI originates from the same type of soil as the
surrounding soils, which therefore should be used as a reference for TPI identification.
Plots established in areas recognized locally as non-anthropogenic soil were included in
the treatment NAS. Plots established in areas recognized as anthropogenic soils were
included in the treatment TPI when they met the following criteria: presence of field
characteristics usually associated with areas of anthropogenic soils (e.g., thick modified A0
horizon, potsherds, color darker than surrounding and subsurface soils); and levels of
phosphorous and/or calcium higher than the mean plus two times the standard deviation of
the NAS plots’ levels of these nutrients. Two of the 28 plots (7.1%) recognized locally as
anthropogenic soils did not meet these criteria and were classified as NAS. Consequently,
26 plots (0.65 ha) were classified as NAS and 26 plots (0.65 ha) were classified as TPI.
Vegetation structure was compared between the treatments through analysis of
covariance (ANCOVA), using density of individuals, richness and basal area as dependent
variables, and the time of regeneration (estimated secondary forest age) as a covariate. To
control the effect of the density of individuals on species richness, we used a rarefaction
method: the dataset of each plot was re-sampled 10,000 times, generating the expected
number of species in a small collection of ten individuals (for understory palms) or
22 individuals (for woody individuals) drawn at random from the total pool of individuals
of the plot (Gotelli and Colwell 2001).
Floristic composition data were ordered through the multivariate analysis Non-metric
Multidimensional Scaling (NMDS). Data were transformed using Wisconsin double
standardization, where species are first standardized by the maximum and then sites are
standardized by site totals. This standardization is generally found to improve the results of
NMDS applied to community data (Oksanen et al. 2009). To calculate the biological
dissimilarity matrix we used the Chao Jaccard estimator (Chao et al. 2005). The floristic
differences between the two treatments were tested with non-parametric Multivariate
Analysis of Variance (non-parametric MANOVA). To investigate the effects of spatial
distance on floristic composition, we did an analysis of spatial autocorrelation. We performed Mantel tests with 10,000 randomizations to test if the biological dissimilarity
matrix was correlated to the Euclidean distance between plots.
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The identification of TPI and NAS indicator species was done with the Dufrene and
Legendre (1997) Indicator Species Analysis. This analysis combines information on species abundance in a given group and the ‘‘loyalty’’ of occurrence of a species in a given
group. The analysis generates Indicator Values (IV) of each species in each group (TPI and
NAS); its statistical significance was tested with the Monte Carlo technique, with 10,000
randomizations.
To investigate if secondary forests on anthropogenic soils concentrate agrobiodiversity,
we classified the species with domesticated populations in the plots following Clement
(1999). The treatments were compared for density of individuals and richness of species
with domesticated populations in the plots using Mann–Whitney tests.
PCA were done with XLSTAT (Fahmy and Aubry 2003), ANCOVA and Mann–
Whitney tests with SYSTAT 10.2 (Wilkinson 2002), rarefactions with Ecosim 7.0 (Gotelli
and Entsminger 2001), Indicator Species Analysis with PC-ORD (McCune and Mefford
1999), and NMDS, Mantel tests and the non-parametric MANOVA with R Statistical
Software (R Development Core Team 2008), using the vegan package (Oksanen et al.
2009).
Results
Species diversity
We sampled 1953 woody individuals (858 on TPI, 1095 on NAS) belonging to 52 families
and 279 species (Appendix, Table 3). 171 species were found on TPI and 174 on NAS.
66 species (23.6%) were found in both soils. Families with the highest number of species
include Fabaceae (Faboideae: 21 spp; Mimosoideae: 21 spp.), Moraceae (20 spp.),
Malvaceae (15 spp.) and Annonaceae (13 spp.). Apeiba tibourbou (Malvaceae), Cochlospermum orinocense (Cochlospermaceae) and Virola theiodora (Myristicaceae) were the
most frequent species found on TPI, occurring in 50, 50 and 38.5% of the plots, respectively. Cochlospermum orinocense, Myrcia aff. aliena (Myrtaceae) and Casearia grandiflora (Salicaceae) were the most frequent species found on NAS, occurring in 50, 34.6 and
34.6% of the plots, respectively. 149 species (53.4% of the total) were found in only one
plot.
Among understory palms, we sampled 1328 individuals (550 on TPI, 778 on NAS)
belonging to 25 species (Appendix, Table 4). 16 species were sampled on TPI and 21 on
NAS. 12 species (46.1%) were sampled in both soils. Astrocaryum murumuru, Attalea cf.
attaleoides and Euterpe precatoria were the most frequent species on TPI, occurring in
57.7, 57.7 and 46.2% of the plots, respectively. Astrocaryum aculeatum, Astrocaryum
gynacanthum and Attalea cf. attaleoides were the most frequent species found on NAS,
occurring in 92.3, 84.6 and 61.5% of the plots, respectively. Six species (24% of the total)
were found in only one plot.
Forest structure—woody individuals with DBH C5 cm
The density of woody individuals was significantly related to the treatments TPI and NAS
(ANCOVA; F = 14.031; P \ 0.001), to plot age (ANCOVA; F = 7.357; P = 0.009), and
there was a significant interaction between these two independent variables (ANCOVA;
F = 5.111; P = 0.028). The interaction shows that the effect of plot age on the density of
wood individuals is different on each soil, which becomes evident in the linear regressions
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Fig. 2 Regressions between density (a, b), species richness (c, d) and basal area (e, f) of woody individuals
with DBH C5 cm with secondary forest age in 26 plots on anthropogenic soils (TPI) and 26 plots on nonanthropogenic soils (NAS). 1Estimated species richness for 22 individuals through rarefaction
made separately for each soil: on TPI, there was no significant relationship between the
density of woody individuals and plot age (F = 0.112; P = 0.741; Fig. 2a), while on NAS
the density of woody individuals was negatively correlated with plot age (r2 = 0.293;
F = 11.345; P = 0.003; Fig. 2b). This means that secondary forests on TPI in early
succession have a lower density of trees than NAS, and this value remains relatively
unchanged as the forests age. On the other hand, NAS shows density values higher than
TPI in early successional stages, but older secondary forests on NAS tend to show density
values equivalent to older secondary forests on TPI.
Richness of woody individuals was significantly related to plot age (ANCOVA;
F = 28.084; P \ 0.001), but not to the soils (ANCOVA; F = 0.04; P = 0.843), nor was
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there interaction between the two independent variables (ANCOVA; F = 0.083;
P = 0.775). On both soils, the richness of woody individuals was positively correlated to
plot age (TPI: r2 = 0.256; F = 9.278; P = 0.006; Fig. 2c; NAS: r2 = 0.495; F = 25.484;
P \ 0.001; Fig. 2d).
A single individual of Brazil nut (Bertholletia excelsa, Lecythidaceae) occurred in plot
1 on TPI at Terra Preta do Atininga and a single individual of Guazuma ulmifolia
(Ulmaceae) in plot 7 on TPI at Água Azul, representing 79.4 and 68.7% of the plot basal
area, respectively. Local informants reported that these individuals were present before the
last time the area was cleared for agricultural use and were much older than the plots’ age.
These individuals were excluded from basal area analysis. There was a significant relationship between basal area and plot age (ANCOVA; F = 13.003; P = 0.001), but not
with soils (ANCOVA; F = 0.037; P = 0.848), nor was there interaction between the two
independent variables (ANCOVA; F = 0.432; P = 0.514). This shows that the effect of
plot age on the increase in basal area is similar on the two soils, and that the basal area does
not differ between TPI and NAS when plot age is controlled, although basal area on TPI is
more variable. On both soils, the basal area was positively correlated with plot age, but the
effect of plot age was weak, as indicated by the low r2 values (TPI: r2 = 0,183; F = 6,586;
P = 0,017; Fig. 2e; NAS: r2 = 0,213; F = 7,769; P = 0,010; Fig. 2f).
Forest structure—understory palms
We found no significant relationship between the density of individuals of understory
palms and the soils (ANCOVA; F = 2.241; P = 0.141), nor with plot age (ANCOVA;
F = 1.877; P = 0.177), nor was there an interaction between the soils and plot age
(ANCOVA; F = 0.170; P = 0.682). The same pattern was found for understory palms’
richness: we found no significant relationship between species richness and the soils
(ANCOVA; F = 0.001; P = 0.970), nor with plot age (ANCOVA; F = 1.922;
P = 0.173), nor was there an interaction between the soils and plot age (ANCOVA;
F = 0.0; P = 1). These results show that there is no difference between TPI and NAS with
respect to understory palms’ density of individuals and species richness, and that there is
no effect of plot age on these variables.
Floristic composition
For woody individuals the NMDS ordination accounted for 30.2% of the variation in the
data set. There is a statistically significant difference between the soils with respect to
floristic composition (Fig. 3a; NPMANOVA: F = 3.13; P \ 0.001). A much clearer
pattern was found for the understory palms (Fig. 3b): the variation explained by the model
was 56.4% and the soils differed significantly in floristic composition (Fig. 3b; NPMANOVA: F = 13.43; P \ 0.001).
Floristic composition was significantly correlated to the distance between plots at Água
Azul for woody individuals (Mantel statistic r = 0.202, P = 0.028), but not for understory
palms; at Barreira do Capanã, it was correlated both for woody individuals (Mantel statistic
r = 0.353, P \ 0.001) and for understory palms (Mantel statistic r = 0.411, P = 0.002);
and at Terra Preta do Atininga, it was correlated both for woody individuals (Mantel
statistic r = 0.431, P \ 0.001) and for understory palms (Mantel statistic r = 0.328,
P = 0.003). Although distance might be an important predictor of similarity in species
composition in some cases, our analyses show a weak relationship between these two
variables here (indicated by the low r values). This weak relationship may be due to the
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Fig. 3 Non-metric multidimensional scaling (NMDS) with two axes shown for a the community of woody
individuals with DBH C5 cm and b the community of understory palms (B1 m high) sampled in secondary
forest plots on anthropogenic soils (TPI) and non-anthropogenic soils (NAS) (percentage explained by the
bidimensional model: a—30.2%; b—56.4%). Each point represents a plot, and its position in the graph is a
bidimensional representation of the biological similarity matrix between the plots, obtained with the Chao
Jaccard estimator
patchy distribution of TPI, which is an intrinsic characteristic of TPI that obliges plots to be
close together within a given community and thus subject to similar seed influx from
surrounding vegetation, as well as similar genetic resources introduced by members of the
communities. Nonetheless, the autocorrelations are quite small, which suggests that differences in other parameters, e.g., soils, are more important.
TPI and NAS indicator species
Among the woody species sampled, seven were TPI indicator species, and nine were NAS
indicator species (Table 1). For understory palms, six species were TPI indicator species
and three were NAS indicator species (Table 2). Three palm species [murumuru (Astrocaryum murumuru), urucuri (Attalea cf. phalerata) and caiaue´ (Elaeis oleifera)] were TPI
indicator species both for woody individuals and for understory palms.
Species with domesticated populations on TPI and NAS
According to the classification of Clement (1999), 14 of the 280 woody species and four of
the 26 understory palm species are considered to contain populations with some degree of
domestication at the time of the European conquest of Amazonia (Appendix, Tables 3 and
4). For woody individuals, TPI showed higher density of individuals (Mann–Whitney
U = 169.0; P = 0.002) and richness (U = 202.5; P = 0.009) of species with domesticated populations when compared to NAS. For understory palms, we found no difference
between TPI and NAS with respect to density of individuals (U = 339.0; P = 0.985) and
richness (U = 319.5; P = 0.691) of species with domesticated populations.
Among the seven woody species that are TPI indicator species, three contain populations domesticated in some degree, as well as two of the six understory palms (Tables 1
and 2). Caiaue´, a species strictly associated with anthropogenic soils throughout Amazonia
(Andrade 1983; Barcelos 1986; Balée and Gély 1989; McCann 2003), and murumuru, a
palm with incipiently domesticated populations associated with archaeological sites
(Morcote-Rı́os and Bernal 2001), were TPI indicator species both for woody individuals
and for understory palms. One species with semi-domesticated populations, tucumã
(Astrocaryum aculeatum), was a NAS indicator species among the understory palms, and
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Table 1 Indicator species of woody individuals with diameter at breast height (DBH) C5 cm sampled in
secondary forests plots on anthropogenic (TPI) and non-anthropogenic soils (NAS) at three communities
along the middle Madeira River, Amazonas, Brazil
Soil
Species
Family
Common name
IV
observed
IV from
randomized
groups
p
DD
Average SD
TPI
Apeiba tibourbou
Malvaceae
Oicima
40.5
22.2
5.5 0.005 –
Astrocaryum
murumuru
Arecaceae
Murumuru
30.8
12.8
4.3 0.004 id
Spondias mombin
Anacardiaceae
Taperebá
26.9
11.6
4.1 0.010 sd
Eugenia muricata
Myrtaceae
Araçá-branco
26.9
11.5
4.1 0.010 –
Elaeis oleifera
Arecaceae
Caiaué
24.2
12.8
4.2 0.024 d
Attalea cf.
phalerata
Arecaceae
Urucuri
23.1
10.6
3.9 0.024 –
NAS Myrcia aff. aliena
Myrtaceae
Murtinha
34.6
14.1
4.6 0.001 –
Casearia
grandiflora
Celastraceae
Cachimbeira
34.6
13.9
4.4 0.002 –
Vismia
cayennensis
Clusiaceae
Lacre-branco
30.8
12.8
4.3 0.004 –
Miconia cf.
poeppigii
Melastomataceae Sapateiro, Cuandú
30.8
13.9
4.9 0.005 –
26.1
13.7
4.7 0.030 –
Lacmellea gracilis Apocynaceae
Tucujá, Jacataca,
Sorvinha
Bellucia
grossularioides
Melastomataceae Goiaba-de-anta,
Papa-terra
23.1
11.8
4.2 0.022 –
Maximiliana
maripa
Arecaceae
Inajá
19.2
9.1
3.3 0.048 id
Cecropia aff. ulei
Urticaceae
Embaúba, Embaúcabranca
19.2
9.6
3.8 0.050 –
IV indicator value, SD Standard deviation, p Proportion of 10,000 randomized trials with IV equal to or
exceeding the observed indicator value, DD Degree of domestication sensu Clement (1999), id incipiently
domesticated, sd semi-domesticated
one species with incipiently domesticated populations, inajá (Maximiliana maripa), was a
NAS indicator species among woody individuals.
Discussion
Our study confirms previous observations that secondary succession on anthropogenic soils
is different from that on non-anthropogenic soils (Major et al. 2003; Clement et al. 2003;
Major et al. 2005), leading to the formation of secondary forests that are structurally and
floristically different from secondary forests on non-anthropogenic soils.
Forest structure differences and similarities
Density of individuals on NAS declined with plot age while TPI maintained constant
density over time; this was the only structural difference we found between these two
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Table 2 Indicator species of understory palms B1 m high sampled in secondary forests plots on anthropogenic (TPI) and non-anthropogenic soils (NAS) at three communities along the middle Madeira River,
Amazonas, Brazil
Soil
Species
Common name
IV observed IV from randomized
groups
Average
TPI
p
DD
SD
Astrocaryum murumuru
Murumuru
57
21.9
5.4
0.000 id
Elaeis oleifera
Caiaué
36.9
16.6
5.1
0.002 id
Oenocarpus minor
Bacabinha
34.6
14.2
4.6
0.001 –
Attalea cf. phalerata
Urucuri
28.7
17.1
5.3
0.045 –
Bactris concinna
Marajá, Marajá-preto 24.5
14.2
4.6
0.048 –
Marajazinho
21.2
11.6
3.9
0.037 –
Tucumã
81.9
35.5
5.4
0.000 sd
Astrocaryum gynacanthum Mumbaca
80.6
31.8
5.5
0.000 –
Tucumã-ı́
26.9
12.4
4.4
0.010 –
Geonoma deversa
NAS Astrocaryum aculeatum
Astrocaryum acaule
IV indicator value, SD Standard deviation, p Proportion of 10,000 randomized trials with IV equal to or
exceeding the observed indicator value, DD Degree of domestication sensu Clement (1999), id incipiently
domesticated, sd semi-domesticated
environments. Density is a rather unpredictable parameter in secondary succession, since it
is affected by factors that operate at different spatial and temporal scales, and that may
have different effects on different size classes (Chazdon et al. 2007). Density of individuals
tends to be higher in secondary than in old-growth forests (Guariguata and Ostertag 2001;
Chazdon et al. 2007), but during the first years or decades after abandonment it may
increase to an asymptote (Aide et al. 1995), show an intermediate peak (Aide et al. 2000;
Feldpausch et al. 2005), or may not be correlated with forest age (Peña-Claros 2003). Our
findings suggest that anthropogenic soils may show specific patterns of density change with
time, which may be due to their higher fertility. Soil fertility may influence the assemblage
of colonizing species (Chazdon 2003), and different species may respond differently to
nutrient availability (Gehring et al. 1999). Species with high growth rates tend to be
disproportionately favored by ample resource levels, leading to their overdominance
during early succession (Chapin et al. 1986). On high fertility soils the abundance of shortlived species tends to be higher than on low-fertility soils (Tilman 1987; Dieleman et al.
2000). Major et al. (2005) showed that the abundance of annual herbaceous species was
higher on anthropogenic soils than on adjacent soils. These intrinsic species life-history
differences may drive successional changes in density of individuals (Chazdon et al. 2007).
Unlike density, trends in species richness and basal area were similar on anthropogenic
and non-anthropogenic soils, showing a linear increase with time. Basal area (which is
strongly correlated to aboveground biomass; Brown 1997) and species richness follow
more predictable patterns in secondary succession (Chazdon et al. 2007). In general,
species richness increases with time, and may reach levels similar to old-growth forests in
a relatively short time (Finegan 1996; DeWalt et al. 2003; Capers et al. 2005). Increment of
basal area (or biomass) with time follows a similar pattern in tropical secondary succession
(see reviews by Guariguata and Ostertag 2001; Chazdon et al. 2007). However, both
species accumulation and biomass increment with time are strongly influenced by soil
fertility and previous land-use (Moran et al. 2000; Pascarella et al. 2000; Gehring et al.
2005). Several studies have shown that richness diminishes with an increase in resource
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1945
availability and productivity (e.g., Waide et al. 1999; Mittelbach et al. 2001; Stevens and
Carson 2002), while others show an unimodal distribution across a productivity gradient,
where richness is higher in intermediate levels of productivity (Grime 1979; Stevens and
Carson 1999). Soil fertility can also positively affect biomass accumulation (Gehring et al.
1999; Laurance et al. 1999; Castilho et al. 2006), and basal area (Chinea 2002).
Some of the characteristics of anthropogenic soils (e.g., higher cation exchange
capacity, higher pH, lower Al saturation; Lehmann et al. 2003a) permit its intensive
agricultural use (Major et al. 2005). In general, swidden duration is longer and fallow time
is shorter than on non-anthropogenic soils (German 2003b; Fraser and Clement 2008;
Fraser et al. 2009). Sites that have been under more intensive agricultural use tend to
accumulate species and biomass slower than ‘‘light-use’’ sites (Uhl et al. 1988; Aide et al.
1995; Fearnside and Guimarães 1996), even when land use differences are subtle (Gehring
et al. 2005).
We would, therefore, expect anthropogenic soils to show different successional patterns
regarding richness and basal area increment with time, since these soils are more fertile
than adjacent soils and are usually associated with more intensive land use. However,
despite their generally higher fertility, anthropogenic soils do not necessarily have all the
nutrients required for plant growth. Some nutrients in anthropogenic soils show similar or
even lower levels than in non-anthropogenic soils, especially potassium, and some nutrients present in higher levels may not be available to plants due to interactions between
nutrients (Lehmann et al. 2003b). Also, species in secondary forests that are well adapted
to the nutrient-poor soils that predominate in the region may not respond significantly to
higher nutrient availability. In addition, the simultaneous and sometimes antagonistic
effects of soil fertility and land use may have obscured possible structural differences
between secondary forests on anthropogenic and non-anthropogenic soils. Further studies
aiming to compare these environments’ vegetation structures should examine the interaction between these two variables.
Differences in species composition
The main difference we found in secondary succession between anthropogenic and nonanthropogenic soils was in species composition. We found significant floristic differences
between TPI and NAS, both for woody individuals and for understory palms. Our results
give quantitative support to other studies that have reported, through ethnographic
observation, that local residents recognize anthropogenic soils through species composition
(Moran 1981; Woods and McCann 1999; Sombroek et al. 2002; German 2003b).
The floristic composition of anthropogenic soils should be strongly influenced by longterm human activity in these environments, since the floristic composition of secondary
forests may be influenced by the intensity, duration and type of land-use before ‘‘abandonment’’ (see reviews by Guariguata and Ostertag 2001; Chazdon 2003; Chazdon et al.
2007). In Mesoamerica, the long-term human activity and the intensive use and management of the landscape by the pre-Columbian Maya resulted in secondary forests with
different floristic composition and high economic and ecological value (Campbell et al.
2006; Ford and Nigh 2009). Different types of land use may result in different assemblages
of species that colonize the site (Mesquita et al. 2001), and during succession the vegetation may undergo several types of human intervention that add or eliminate some species
according to a desired objective (Denevan and Padoch 1987; Irvine 1989), leading to many
possible successional trajectories.
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The shorter fallow periods in shifting agriculture on anthropogenic soils represent an
increase in the frequency of burning, which may reduce the density of heat-intolerant seeds
in the soil seedbank (Ewel et al. 1981; Uhl et al. 1981), reduce the contribution of sprouting
to regeneration (Uhl et al. 1982; de Rouw 1993), but also favor the resprouting of some
plants with stems and/or roots that are heat-tolerant (Mesquita et al. 2001). Also, the
reduction of fallow duration can favor the maintenance of short-lived species in the soil
seedbank, as shown by Major et al. (2005) for herbaceous species on anthropogenic soils in
Central Amazonia. These factors have most likely influenced the species composition of
the later successional stages we sampled. Finally, due to the close association between
anthropogenic soils and human settlements, they must have been (and still are) areas of
more intensive agroforestry practices, resulting in secondary forests with a high concentration of useful species, many with domesticated populations.
The role of secondary forests on anthropogenic soils in concentrating agrobiodiversity
Owing to the fact that anthropogenic soils are strictly associated with past agricultural
and settlement areas, they were probably environments where pre-Columbian people and
later residents concentrated plant resources, as still happens today in homegardens and in
fallows of shifting agriculture (Denevan and Padoch 1987; Irvine 1989; Denevan 2001;
Kumar and Nair 2004). In these environments, the introduction of species with distinct
degrees of domestication and the use of various forms of vegetation management
(selective weeding, transplanting, etc.) may cause modifications in the course of natural
succession, and these effects may persist for a long time. Long-lived species, such as
Brazil nut (Bertholletia excelsa) that contains incipiently domesticated populations, or
understory trees, such as cocoa (Theobroma cacao) that contains semi-domesticated
populations, may persist indefinitely in the secondary forest, and in some cases species
may persist for a considerable time as sprouts or seeds (Clement et al. 2003). Balée and
Campbell (1990) determined that some species with incipiently domesticated populations
(e.g., Bertholletia excelsa, Maximiliana maripa, Theobroma speciosum) are among the
most important in liana-dominated anthropogenic forests close to TPI patches in the
Xingu River basin.
We found that secondary forests on anthropogenic soils concentrate species with
incipiently or semi-domesticated populations, many of which are commonly associated
with archaeological sites and anthropogenic soils in Amazonia (Balée and Gély 1989;
Clement et al. 2003). All of the nine indicator species of anthropogenic soils are useful
species (see Tables 1 and 2), three of which contain semi-domesticated populations
[Astrocaryum murumuru (reported in archaeological sites as early as 9,000 years before
present—yBP; Morcote-Rı́os and Bernal 2001), Elaeis oleifera (reported as early as 6,000
yBP (idem) and believed to have been distributed in Amazonia by humans; Balée and Gély
1989) and Spondias mombin], and two of which are widely used for food, fiber and other
purposes by traditional populations now and certainly in the past (Oenocarpus minor,
Attalea cf. phalerata). These observations suggest that the current species composition of
secondary forests on anthropogenic soils represent a continuum between the introduction
of useful species (many with domesticated populations) in the past and their maintenance
by modern management and encouragement practices. In fact, several of our informants
recall high concentrations of useful species, including with domesticated populations, on
the TPI sites even before the communities were established at their present sites. It is worth
noting, however, that two NAS indicator species, Astrocaryum aculeatum and Maximiliana
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maripa, contain semi-domesticated and incipiently domesticated populations, respectively.
This reinforces the idea that secondary succession on NAS is also subject to considerable
human agency [as previously noted by Denevan and Padoch (1987) and Irvine (1989) on
secondary forests on non-anthropogenic soils]. Nevertheless, our results support a much
more intensive human influence in secondary succession on anthropogenic soils than on
adjacent non-anthropogenic soils.
Our findings contrast with those of Paz-Rivera and Putz (2009), who found no difference in the density of 17 useful tree species between anthropogenic soils and nonanthropogenic soils in a much older (at least 140 years old) lowland forest in Bolivia.
Although Paz-Rivera and Putz (2009) selected their 17 species based on their being
edible or otherwise useful, it is possible that their subsample of the total species pool is
insufficient to identify previous human intervention, since it may include species that,
despite being useful, were not useful enough to justify a type of intensive management
that favored their occurrence. Instead, we chose to identify possible human intervention
in the vegetation by looking at species with domesticated populations that where cultivated in Amazonia at the time of European conquest (Clement 1999). These are species
that are much more intensively manipulated and therefore they bring more relevant
information to the question of how secondary forests on TPI might have been affected by
human agency [only six of the 17 species selected by Paz-Rivera and Putz (2009) were
species with domesticated populations according to Clement (1999)]. Also, adjacent nonanthropogenic areas are subjected to management and introduction of useful species
(Paz-Rivera and Putz 2009), but the management focused on species with domesticated
populations probably occurred more intensively on TPI than on NAS, since the former
originated from pre-Columbian homegardens and swiddens, where indigenous experimentation is more evident (Clement et al. 2003; Hiraoka et al. 2003). Although we did
not sample secondary forests on TPI older than 30 years, it is probable that the differences between TPI and NAS in terms of species composition will persist in later successional stages. Samuel Almeida and colleagues (Clement et al. 2009) sampled trees
with DBH C10 cm in a one-hectare plot in an old secondary forest [at least 300 years
old (Kern 1996)] on TPI at Caxiuanã (Pará, Brazil) and compared the species richness
and abundance to another one-hectare plot in a mature forest on an adjacent nonanthropogenic soil. They found that, although the density of individuals was similar
between TPI and NAS, there were clear differences regarding species richness (39.7%
higher on NAS than on TPI) and composition (the similarity between the sites was only
6.9%). These results support the idea that human-induced modifications in secondary
succession may persist for a long time, and are likely to be detected in old-growth
secondary forests on TPI, even though natural processes could mask these differences as
vegetation ages (Paz-Rivera and Putz 2009). We suggest further studies to compare TPI
and NAS regarding richness and density of domesticated species in older secondary
forests to examine the durability and dynamics of the human-induced modifications in
the secondary succession of these forests.
Although Posey’s (1984) widely cited example of actively managed ‘‘forest resource
islands’’ among the Kayapó Indians has drawn sharp criticism (Parker 1992; see also Posey
1992), our results suggest similar processes shaping the introduction (whether active or
passive) of useful species, many with domesticated populations, in TPI secondary forest
sites in a different part of Amazonia. This result likewise supports Clement et al. (2003),
who hypothesized that anthropogenic soils could act as agrobiodiversity reservoirs through
the concentration and maintenance of genetic resources of native and exotic plant species
with domesticated populations.
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Conclusions
Although anthropogenic soils are widely distributed in Amazonia and emerged in different
environmental, cultural and socioeconomic contexts, they share an intense association with
human activity in the past and, frequently, with specific forms of current use and management. This is most noticeable in terms of the floristic composition of the secondary forests on
anthropogenic soils, which is clearly distinct from secondary forests on adjacent nonanthropogenic soils. The total extent of anthropogenic soils in Amazonia is still unknown
(Erickson 2003), with estimates varying from 0.1 to 0.3% (Sombroek et al. 2003) of the total
area of the Amazon basin. The relevance of these areas for understanding settlement and
agricultural patterns in pre-Columbian Amazonia has been increasingly recognized (Neves
et al. 2003; Woods and Denevan 2009). Our study shows that anthropogenic soils also
maintain unique secondary forests and concentrate species with domesticated populations,
thereby concentrating agrobiodiversity. Hence, they offer advantages for in situ conservation
of genetic resources, and should to be considered in conservation efforts since they aggregate
heterogeneity and biodiversity in Amazonian landscapes.
Acknowledgments Our sincere thanks for the invaluable help and kindness of the residents of Água Azul,
Barreira do Capanã and Terra Preta do Atininga, especially to the field assistants Raimundo Nonato Soares
Barros, Silvestre Arcanjo de Souza, José Rodrigues de Souza and Raimundo Furtado Neto. Thanks also to a
number of people at INPA who helped with plant identifications, especially José Ferreira Ramos and Paulo
Apóstolo. André Braga Junqueira received a graduate scholarship from the Brazilian National Research
Council (CNPq), and this work is part of his master’s dissertation at INPA. The Brazilian International
Institute of Education (IEB)/The Moore Foundation provided financial support and IdeaWild provided
equipment for fieldwork. Tânia Pimentel and the staff from the LTSP/INPA provided support with the
laboratorial soil analyses. We thank Ana Catarina Jakovac, James A. Fraser, Bruce Walker Nelson, Laura
German, Lin Chau Ming and William Balée for suggestions to improve earlier versions of this manuscript.
Charles R. Clement is a fellow of CNPq.
Appendix: Secondary forest species abundance and frequency
See Tables 3 and 4.
Table 3 List of the woody species found on 52 secondary forest plots at three communities along the
middle Madeira River, Amazonas, Brazil
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Achariaceae
Lindackeria paludosa (Benth.) Gilg
12
8
20
4
7
Anacardiaceae
Anacardium occidentale L.
1
0
1
1
0
1
Astronium lecointei Ducke
0
1
1
0
1
1
Mangifera indica L.
1
0
1
1
0
1
Spondias mombin L.
11
0
11
7
0
7
Tapirira guianensis Aubl.
8
23
31
5
7
12
Thyrsodium spruceanum Benth.
0
3
3
0
3
3
123
11
sd
sd
Biodivers Conserv (2010) 19:1933–1961
1949
Table 3 continued
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Annonaceae
Apocynaceae
Annona foetida Mart.
1
0
1
1
0
Diclinanona calycina (Diels) R. E. Fr.
0
1
1
0
1
1
1
Ephedranthus amazonicus R.E. Fr.
1
0
1
1
0
1
1
Guatteria cf. scytophylla Diels
0
1
1
0
1
Guatteria foliosa Benth.
0
2
2
0
2
2
Guatteria megalophylla Diels
0
1
1
0
1
1
Guatteria olivacea R. E. Fr.
0
7
7
0
2
2
Guatteria pteropus Benth.
5
3
8
4
3
7
Guatteriella sp. 1
0
6
6
0
4
4
Guatteriopsis sp. 1
1
0
1
1
0
1
Rollinia cuspidata Mart.
2
1
3
2
1
3
Rollinia exsucca (DC. Ex Dunal) A. DC.
6
3
9
2
2
4
Xylopia aromatica (Lam.) Mart.
2
19
21
2
5
7
Apocynaceae sp. 1
1
0
1
1
0
1
Himatanthus cf. sucuuba (Spruce ex
Müll. Arg.) Woodson
3
4
7
2
3
5
Himatanthus aff. stenophyllus Plumel
2
2
4
2
2
4
Himatanthus sp. 1
1
0
1
1
0
1
Lacmellea gracilis (Müll. Arg.)
Markgr.
1
30
31
1
7
8
Rauvolfia sprucei Müll. Arg.
1
2
3
1
2
3
Tabernaemontana cymosa Jacq.
0
2
2
0
2
2
Araliaceae
Schefflera morototoni (Aubl.)
Maguire, Steyerm. & Frodin
6
8
14
3
8
11
Arecaceae
Astrocaryum aculeatum Meyer
7
13
20
3
8
11
sd
Astrocaryum murumuru Mart.
15
0
15
8
0
8
id
Attalea cf. attaleoides (Barb. Rodr.)
Wess. Boer
2
3
5
2
3
5
Attalea cf. speciosa Mart. ex Spreng.
3
4
7
2
2
4
Attalea cf. phalerata Mart. ex Spreng. 10
0
10
6
0
6
Elaeis oleifera (Kunth.) Cortés
18
2
20
7
1
8
Euterpe precatoria Mart.
13
0
13
2
0
2
Iriartella setigera (Mart.) H. Wendl.
2
0
2
2
0
2
Maximiliana maripa (Aubl.) Drude
0
5
5
0
5
5
Oenocarpus minor Mart.
2
0
2
2
0
2
Asteraceae
Vernonia scabra Pers.
2
0
2
2
0
2
Bignoniaceae
Adenocalymma sp.
1
0
1
1
0
1
Arrabidaea brachypoda (DC.) Bureau
2
0
2
2
0
2
39
14
53
4
7
11
Lundia densiflora DC.
2
0
2
1
0
1
Scobinaria sp. 1
2
0
2
1
0
1
Tabebuia sp. 1
0
1
1
0
1
1
Jacaranda copaia (Aubl.) D. Don
id
id
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Biodivers Conserv (2010) 19:1933–1961
Table 3 continued
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Boraginaceae
Burseraceae
Cordia scabrifolia A. DC.
4
1
5
2
1
Cordia sellowiana Cham.
1
9
10
1
6
3
7
Cordia sprucei Mez
0
1
1
0
1
1
Crepidospermum goudotianum (Tul.)
Triana & Planch.
2
0
2
1
0
1
Crepidospermum rhoifolium (Benth.)
Triana & Planch.
0
4
4
0
3
3
Protium nitidifolium (Cuatrec.) D. C.
Daly
0
1
1
0
1
1
Protium robustum (Swart) D.M. Porter
1
0
1
1
0
1
Tetragastris panamensis (Engl.)
Kuntze
1
0
1
1
0
1
Trattinnickia burserifolia Mart.
0
2
2
0
2
2
Trattinnickia glaziovii Swart
0
5
5
0
2
2
4
Trattinnickia peruviana Loes.
1
5
6
1
3
Trattinnickia rhoifolia Willd.
1
1
2
1
1
2
Cannabaceae
Trema micrantha Blume
1
0
1
1
0
1
Caricaceae
Jacaratia aff. digitata (Poepp. &
Endl.) Solms
1
0
1
1
0
1
Chrysobalanaceae Hirtella elongata Mart. & Zucc.
2
Clusiaceae
4
0
4
2
0
Licania gracilipes Taub.
0
1
1
0
1
1
Licania micrantha Miq.
0
1
1
0
1
1
Licania sp. 1
1
0
1
1
0
1
Rheedia macrophylla (Mart.) Planch.
& Triana
1
0
1
1
0
1
Symphonia globulifera L. f.
1
0
1
1
0
1
Vismia aff. gracilis Hieron.
2
0
2
1
0
1
Vismia cayennensis (Jacq.) Pers.
0
27
27
0
8
8
Vismia gracilis Hieron
0
7
7
0
3
3
Vismia japurensis Reichardt
0
1
1
0
1
1
27
9
36
6
2
8
Vismia sandwithii Ewan
Vismia sp. 1
Cochlospermaceae Cochlospermum orinocense
(Kunth) Steud.
0
2
2
0
2
2
81
175
256
13
13
26
Dilleniaceae
Doliocarpus sp. 1
0
2
2
0
1
1
Euphorbiaceae
Acalypha brasiliensis Müll. Arg.
1
0
1
1
0
1
Acalypha macrostachya Jacq.
0
1
1
0
1
1
Alchorneopsis floribunda (Benth.)
Müll. Arg.
0
1
1
0
1
1
123
Aparisthmium cordatum (Juss.) Baill.
0
32
32
0
5
5
Chaetocarpus cf. schomburgkianus
(Kuntze) Pax & K. Hoffm.
0
2
2
0
1
1
Conceveiba guianensis Aubl.
0
1
1
0
1
1
id
Biodivers Conserv (2010) 19:1933–1961
1951
Table 3 continued
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Croton aff. sampatik Müll. Arg.
1
0
1
1
0
1
Croton palanostigma Klotzsch
0
15
15
0
3
3
Croton sp. 1
1
0
1
1
0
1
Mabea angustifolia Spruce ex Benth.
0
29
29
0
2
2
1
0
1
1
0
1
1
4
5
1
3
4
Machaerium hoehneanum Ducke
0
1
1
0
1
1
Macrolobium limbatum Spruce ex
Benth.
0
1
1
0
1
1
13
5
18
6
2
8
Fabaceae–
Bauhinia guianensis Aubl.
Caesalpinoideae Bauhinia longicuspis Spruce ex Benth.
Schizolobium amazonicum Huber ex
Ducke
Sclerolobium sp. 1
0
1
1
0
1
1
13
33
46
5
7
12
Tachigali sp. 1
1
0
1
1
0
1
Tachigali sp. 2
0
1
1
0
1
1
Tachigali sp. 3
0
11
11
0
3
3
Alexa grandiflora Ducke
1
0
1
1
0
1
Dalbergia spruceana (Benth.) Benth.
0
1
1
0
1
1
Dialium guianense (Aubl.) Sandwith
1
1
2
1
1
2
Diplotropis cf. triloba Gleason
0
3
3
0
1
1
Senna silvestris (Vell.) H.S. Irwin &
Barneby
Fabaceae–
Faboideae
Fabaceae–
Mimosoideae
Diplotropis sp. 1
1
0
1
1
0
1
Dipteryx odorata (Aubl.) Willd.
1
2
3
1
2
3
Machaerium floribundum Benth.
2
0
2
2
0
2
Mucuna sp.
0
1
1
0
1
1
Ormosia aff. grossa Rudd
2
2
4
1
1
2
Ormosia discolor Spruce ex Benth.
1
0
1
1
0
1
Poecilanthe effusa (Huber) Ducke
1
13
14
1
5
6
Pterocarpus rohrii Vahl
0
1
1
0
1
1
Swartzia apetala Raddi
1
4
5
1
2
3
Swartzia cuspidata Spruce ex Benth.
0
1
1
0
1
1
Swartzia laurifolia Benth.
0
2
2
0
2
2
Swartzia laxiflora Bong. ex Benth.
1
5
6
1
5
6
Swartzia polyphylla DC.
0
1
1
0
1
1
Swartzia sp. 1
0
1
1
0
1
1
Swartzia sp. 2
0
2
2
0
1
1
Swartzia tessmannii Harms
0
1
1
0
1
1
Enterolobium schomburgkii (Benth.)
Benth.
1
4
5
1
4
5
Inga alba (Sw.) Willd.
3
2
5
2
2
4
Inga cf. disticha Benth.
21
29
50
5
6
11
Inga cf. edulis Mart.
12
0
12
4
0
4
d
123
1952
Biodivers Conserv (2010) 19:1933–1961
Table 3 continued
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Inga cf. grandiflora Wall.
6
0
6
2
0
2
Inga cf. ingoides (Rich.) Willd.
1
0
1
1
0
1
Inga cf. lomatophylla (Benth.) Pittier
1
0
1
1
0
1
Inga cf. marginata Willd.
1
0
1
1
0
1
Inga heterophylla Willd.
2
11
13
2
5
7
7
Inga lateriflora Miq.
1
8
9
1
6
24
28
52
6
3
9
Inga macrophylla Humb. & Bonpl. ex
Willd.
7
4
11
4
2
6
Inga obidensis Ducke
2
4
6
1
3
4
Inga umbellifera (Vahl) Steud.
2
0
2
2
0
2
Parkia nitida Miq.
0
1
1
0
1
1
Parkia pendula (Willd.) Benth. ex
Walp.
0
1
1
0
1
1
Inga longiflora Spruce ex Benth.
Samanea saman (Jacq.) Merr.
15
0
15
4
0
4
Stryphnodendron guyanense (Aubl.)
Benth.
0
1
1
0
1
1
Stryphnodendron pulcherrimum
(Willd.) Hochr.
0
2
2
0
2
2
Vatairea sp. 1
1
0
1
1
0
1
Zygia racemosa (Ducke) Barneby & J.
W. Grimes
0
1
1
0
1
1
Goupiaceae
Goupia glabra Aubl.
1
10
11
1
5
6
Hippocrateaceae
Cheiloclinium cognatum (Miers) A.C.
Sm.
1
0
1
1
0
1
Indeterminate
Indet Liana 1
1
0
1
1
0
1
Indet Liana 2
1
0
1
1
0
1
Lacistema aggregatum (P. J. Bergius)
Rusby
0
1
1
0
1
1
Lacistemaceae
Lauraceae
Lecythidaceae
123
Endlicheria cf. formosa A. C. Sm.
2
1
3
1
1
2
Mezilaurus itauba (Meisn.) Taub. ex
Mez
0
3
3
0
2
2
Ocotea guianensis Aubl.
0
1
1
0
1
1
Ocotea longifolia Kunth
15
7
22
7
4
11
Ocotea oblonga (Meisn.) Mez
0
1
1
0
1
1
Ocotea splendens (Meisn.) Baill.
0
1
1
0
1
1
Persea americana Mill.
1
0
1
1
0
1
Rhodostemonodaphne sp.
0
1
1
0
1
1
Bertholletia excelsa Bonpl.
10
4
14
8
4
12
Couratari stellata A.C. Sm.
0
1
1
0
1
1
Eschweilera atropetiolata S. A. Mori
0
1
1
0
1
1
Eschweilera chartaceifolia S. A. Mori
1
0
1
1
0
1
d
id
Biodivers Conserv (2010) 19:1933–1961
1953
Table 3 continued
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Eschweilera gigantea (R. Knuth) J. F.
Macbr.
1
0
1
1
0
1
Eschweilera ovalifolia (DC.) Nied.
0
1
1
0
1
1
Eschweilera sp. 1
1
0
1
1
0
1
Eschweilera sp. 2
0
1
1
0
1
1
Eschweilera truncata A. C. Sm.
0
1
1
0
1
1
Gustavia augusta L.
1
0
1
1
0
1
Malpighiaceae
Byrsonima crispa A. Juss.
0
1
1
0
1
1
Malvaceae
Apeiba membranacea Spruce ex
Benth.
2
0
2
2
0
2
Apeiba tibourbou Aubl.
30
7
37
13
3
16
Ceiba pentandra (L.) Gaertn.
1
0
1
1
0
1
Ceiba sp. 1
3
0
3
1
0
1
Eriotheca aff. globosa (Aubl.) A.
Robyns
0
1
1
0
1
1
Eriotheca longitubulosa A. Robyns
0
2
2
0
2
2
Guazuma ulmifolia Lam.
1
0
1
1
0
1
Heliocarpus americanus L.
26
0
26
3
0
3
Luehea sp.
1
0
1
1
0
1
Pachira sp. 1
2
0
2
2
0
2
Sterculia aff. apetala (Jacq.) H. Karst.
1
0
1
1
0
1
Sterculia aff. frondosa Rich.
3
0
3
2
0
2
Theobroma cacao L.
1
0
1
1
0
1
Theobroma obovatum Klotzch ex
Bernoulli
1
0
1
1
0
1
Theobroma speciosum Willd. Ex
Spreng.
0
1
1
0
1
1
Melastomataceae
Bellucia acutata Pilg.
0
4
4
0
2
2
Meliaceae
Bellucia grossularioides (L.) Triana
0
24
24
0
6
6
Miconia affinis DC.
5
13
18
4
4
8
Miconia cf. pilgeriana Ule
0
1
1
0
1
1
Miconia cf. poeppigii Triana
0
44
44
0
8
8
Miconia cf. tillettii Wurdack
0
3
3
0
3
3
Miconia cuspidata Mart. ex Naudin
0
10
10
0
2
2
25
4
29
6
3
9
Miconia minutiflora (Bonpl.) DC.
Menispermaceae
Miconia prasina (Sw.) DC.
0
1
1
0
1
1
Miconia symplectocaulos Pilg.
0
1
1
0
1
1
Guarea humaitensis T.D. Penn.
1
0
1
1
0
1
Guarea kunthiana A. Juss.
4
0
4
3
0
3
Trichilia guianensis Klotzsch ex C.
DC.
0
1
1
0
1
1
Trichilia micrantha Benth.
1
0
1
1
0
1
Abuta grandifolia (Mart.) Sandwith
1
0
1
1
0
1
sd
id
123
1954
Biodivers Conserv (2010) 19:1933–1961
Table 3 continued
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Miristicaceae
Virola theiodora (Spruce ex Benth.)
Warb.
Monimiaceae
Moraceae
Myrtaceae
21
8
29
10
6
16
Bracteanthus glycycarpus Ducke
1
0
1
1
0
1
Siparuna cf. depressa Jangoux
0
1
1
0
1
1
Siparuna cf. guianensis Aubl.
0
1
1
0
1
1
Siparuna sarmentosa Perkins
1
0
1
1
0
1
Brosimum acutifolium Huber
0
1
1
0
1
1
Brosimum guianense (Aubl.) Huber
2
1
3
1
1
2
Brosimum lactescens (S. Moore) C. C.
Berg
1
0
1
1
0
1
Brosimum sp. 1
0
1
1
0
1
1
Castilla ulei Warb.
1
0
1
1
0
1
Clarisia aff. biflora Ruiz & Pav.
2
0
2
1
0
1
Clarisia ilicifolia (Spreng.) Lanj. &
Rossberg
2
0
2
2
0
2
Ficus citrifolia Mill.
2
0
2
2
0
2
Ficus maxima Mill.
1
1
2
1
1
2
Ficus obtusiuscula (Miq.) Miq.
2
1
3
1
1
2
Helianthostylis sprucei Baill.
1
0
1
1
0
1
Helicostylis tomentosa (Poepp. &
Endl.) Rusby
1
3
4
1
2
3
Maclura tinctoria (L.) D. Don ex
Steud
2
0
2
2
0
2
Maquira calophylla (Poepp. & Endl.)
C. C. Berg
1
1
2
1
1
2
Maquira sclerophylla (Ducke) C. C.
Berg
1
3
4
1
3
4
Perebea mollis (Poepp. & Endl.)
Huber
1
8
9
1
1
2
Pseudolmedia laevis (Ruiz & Pav.) J.
F. Macbr.
2
0
2
1
0
1
Sorocea guayanensis W. C. Burger
0
1
1
0
1
1
Sorocea hirtella Mildbr.
1
0
1
1
0
1
Trymatococcus amazonicus Poepp. &
Endl.
0
4
4
0
2
2
Eugenia aff. citrifolia Poir.
Eugenia muricata DC.
123
0
2
2
0
1
1
14
0
14
7
0
7
Eugenia omissa McVaugh
2
0
2
2
0
2
Myrcia aff. aliena McVaugh
0
87
87
0
9
9
Myrcia aff. huallagae McVaugh
1
6
7
1
2
3
Myrcia aff. paivae O. Berg
1
0
1
1
0
1
Myrcia aliena McVaugh
0
8
8
0
4
4
Myrcia bracteata (Rich.) DC.
7
3
10
2
2
4
Myrcia cf. gigas McVaugh
1
0
1
1
0
1
Biodivers Conserv (2010) 19:1933–1961
1955
Table 3 continued
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Nyctaginaceae
Myrcia servata McVaugh
0
1
1
0
1
Psidium apiculatum Mattos
6
0
6
3
0
1
3
Guapira opposita (Vell.) Reitz
1
0
1
1
0
1
Neea cf. filipes Huber
1
0
1
1
0
1
Neea sp. 1
0
1
1
0
1
1
Neea sp. 2
1
0
1
1
0
1
Ochnaceae
Ouratea castaneifolia (DC.) Engl.
1
0
1
1
0
1
Olacaceae
Aptandra tubicina (Poepp.). Benth. ex
Miers
5
0
5
3
0
3
Heisteria cf. densifrons Engl.
1
0
1
1
0
1
Passifloraceae
Passiflora nitida Kunth
0
1
1
0
1
1
Piperaceae
Piper aduncum L.
87
0
87
5
0
5
Rubiaceae
Duroia sp. 1
4
0
4
1
0
1
Faramea sp. 1
0
2
2
0
1
1
Ferdinandusa cf. rudgeoides (Benth.)
Wedd.
0
1
1
0
1
1
Palicourea grandifolia (Willd. ex
Roem. & Schult.) Standl.
0
2
2
0
1
1
Palicourea guianensis Aubl.
1
1
2
1
1
2
Uncaria guianensis (Aubl.) J.F. Gmel.
0
1
1
0
1
1
Warszewiczia coccinea (Vahl)
Klotzsch
6
2
8
5
2
7
Rutaceae
Zanthoxylum rhoifolium Lam.
6
0
6
2
0
2
Salicaceae
Casearia aff. grandiflora Cambess.
0
3
3
0
2
2
Casearia cf. pitumba Sleumer
0
2
2
0
1
1
Casearia duckeana Sleumer
0
1
1
0
1
1
Casearia grandiflora Cambess.
0
21
21
0
9
9
Casearia javitensis Kunth
1
9
10
1
4
5
Casearia ulmifolia Vahl ex Vent.
3
2
5
2
1
3
Laetia procera (Poepp.) Eichler
1
0
1
1
0
1
Cupania cf. racemosa (Vell.) Radlk.
4
0
4
3
0
3
Cupania rubiginosa (Poir.) Radlk.
2
1
3
2
1
3
Cupania scrobiculata Rich.
0
2
2
0
1
1
Cupania sp. 1
2
0
2
2
0
2
Pseudima frutescens (Aubl.) Radlk.
2
0
2
2
0
2
Talisia cf. guianensis Aubl.
0
1
1
0
1
1
Toulicia guianensis Aubl.
0
3
3
0
3
3
Ecclinusa lanceolata (Mart. &
Eichler) Pierre
0
1
1
0
1
1
Micropholis guyanensis (A. DC.)
Pierre
0
1
1
0
1
1
Sapindaceae
Sapotaceae
Pouteria caimito (Ruiz & Pav.) Radlk.
0
1
1
0
1
1
d
Pouteria cf. macrophylla (Lam.) Eyma
0
1
1
0
1
1
sd
123
1956
Biodivers Conserv (2010) 19:1933–1961
Table 3 continued
Family
Species
Number of
individuals
DD3
Frequency
TPI1 NAS2 Total TPI1 NAS2 Total
Simaroubaceae
Simaba cedron Planch.
1
0
1
1
0
1
Simaba polyphylla (Cavalcante) W.
W. Thomas
0
1
1
0
1
1
1
Simarouba cf. amara Aubl.
0
1
1
0
1
Solanaceae
Solanum quaesitum C. V. Morton
1
0
1
1
0
1
Strelitziaceae
Phenakospermum guyannense (Rich.)
Endl.
5
2
7
1
1
2
Ulmaceae
Ampelocera edentula Kuhlm.
1
0
1
1
0
1
Celtis iguanaea (Jacq.) Sarg.
2
0
2
1
0
1
Cecropia aff. ficifolia Warb. ex Snethl.
5
13
18
3
8
11
Cecropia aff. purpurascens C.C. Berg
2
0
2
1
0
1
Cecropia aff. ulei Snethl.
0
12
12
0
5
5
Urticaceae
Cecropia sciadophylla Mart.
2
7
9
2
4
6
Coussapoa orthoneura Standl.
0
1
1
0
1
1
Coussapoa sp. 1
0
1
1
0
1
1
Pouroma villosa Trécul
0
1
1
0
1
1
Pourouma guianensis Aubl.
16
1
17
5
1
6
Pourouma minor Benoist
1
1
2
1
1
2
Violaceae
Leonia crassa L.B. Sm. & A.
Fernández
2
0
2
2
0
2
Paypayrola grandiflora Tul.
1
0
1
1
0
1
Vochysiaceae
Vochysia aff. maxima Ducke
0
1
1
0
1
1
Vochysia sp. 1
7
0
7
3
0
3
1
Anthropogenic soils
2
Non-anthropogenic soils
DD Degree of domestication sensu Clement (1999), id incipiently domesticated, sd semi-domesticated, d
domesticated
Table 4 List of the understory palm species found on 52 secondary forest plots at three communities along
the middle Madeira River, Amazonas, Brazil
Species
Astrocaryum acaule Mart.
Number of individuals
Frequency
TPI1
TPI1
NAS2
Total
NAS2
DD
Total
0
55
55
0
7
7
Astrocaryum aculeatum Meyer
14
110
124
6
24
30
Astrocaryum gynacanthum Mart.
18
363
381
4
22
26
Astrocaryum murumuru Mart.
Attalea cf. attaleoides (Barb. Rodr.) Wess. Boer
Attalea cf. phalerata Mart. ex Spreng.
Attalea sp. 1
123
84
1
85
15
1
16
127
118
245
15
16
31
42
4
46
8
4
12
0
38
38
0
4
4
sd
id
Biodivers Conserv (2010) 19:1933–1961
1957
Table 4 continued
Species
Number of individuals
1
TPI
2
NAS
Total
Frequency
1
TPI
DD
2
NAS
Total
Bactris arundinacea Trail
0
1
1
0
1
1
Bactris cf. bifida Mart.
0
1
1
0
1
1
Bactris concinna Mart.
9
30
3
33
7
2
Bactris hirta Mart.
0
2
2
0
1
1
Bactris maraja Mart.
7
9
16
4
4
8
Bactris simplicifrons Mart.
1
6
7
1
5
6
32
0
32
4
0
4
Desmoncus cf. leptospadix Mart.
2
4
6
1
4
5
Desmoncus macroacanthos Mart.
0
2
2
0
2
2
Elaeis oleifera (Kunth) Cortés
71
3
74
10
1
11
Euterpe precatoria Mart.
80
14
94
12
10
22
Geonoma deversa (Poit.) Kunth
7
Bactris sp. 1
11
1
12
6
1
Iriartella setigera (Mart.) H. Wendl.
1
0
1
1
0
1
Maximiliana maripa (Aubl.) Drude
0
9
9
0
4
4
Oenocarpus bacaba Mart.
0
1
1
0
1
1
Oenocarpus minor Mart.
29
0
29
9
0
9
Syagrus sp. 1
0
33
33
0
4
4
Wendlandiella sp.
1
0
1
1
0
1
1
Anthropogenic soils
2
Non-anthropogenic soils
id
id
DD Degree of domestication sensu Clement (1999), id incipiently domesticated, sd semi-domesticated
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