Répteis da Estação Ecológica Serra Geral do Tocantins , Brasil Central Répteis da Estação Ecológica Serra Geral do Tocantins , Brasil Central
- ISBN: 0361101201
Abstract
: The South American Cerrado harbors a rich reptilian fauna with high number of endemics. However, knowledge of this diversity is still incipient in front of accelerated transformation of natural landscapes, which makes the domain a hotspot for study and conservation of global biodiversity. Studies on the reptile fauna of Cerrado are urgently needed for a better understanding of the processes that led to their origin and distribution and to support conservation planning. We used standard methods to sample two unexplored regions of the Serra Geral do Tocantins Ecological Station (EESGT), located in the Jalapão region of the Cerrado domain. We recorded 45 species of reptiles for the EESGT and surroundings, which represents high species richness, comparable to other well-sampled regions of the Cerrado. Accumulation curves and estimators indicate that sampled richness of lizards and amphisbaenas are close to real values. However, current sampling underestimates snake richness. The non-random distribution of species in the landscape agrees with previous evidence suggesting differential use of habitats by Cerrado reptiles. Combining the results of this study with those of previous surveys conducted in the region, we recorded 88 species of reptiles for the Jalapão region with eight new records, including Bachia oxyrhina, a recent described species of this region. We found three general patterns of distribution: (1) species endemic of the Cerrado domain, (2) species shared with the domains of the South American diagonal of tropical open formations, (3) species widely distributed, also shared with forest ecosystems. Species of wide distribution prevails in the region, but there is large number of species typical of the Cerrado, possibly including five endemics to Jalapão, and there is an important contribution of the Caatinga fauna. The distribution of reptile species in local and regional scales shows the need to consider the landscape heterogeneity for adequate conservation planning in the Cerrado region. Because of the physical and biotic characteristics, EESGT has a key role in the preservation and knowledge of the diversity of Cerrado reptiles.
Répteis da Estação Ecológica Serra Geral do Tocantins , Brasil Central Répteis da Estação Ecológica Serra Geral do Tocantins , Brasil Central
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Répteis da Estação Ecológica Serra Geral do
Tocantins, Brasil Central
Recoder, R.S. et al.
Biota Neotrop. 2011, 11(1): 000-000.
On line version of this paper is available from:
http://www.biotaneotropica.org.br/v11n1/en/abstract?article+bn03611012011
A versão on-line completa deste artigo está disponível em:
http://www.biotaneotropica.org.br/v11n1/pt/abstract?article+bn03611012011
Received/ Recebido em 08/04/10 -
Revised/ Versão reformulada recebida em 11/03/11 - Accepted/ Publicado em 18/03/11
ISSN 1676-0603 (on-line)
Biota Neotrop., vol. 11, no. 1
ID Artigo: bn03611012011
envio: 15/04/2011
Diagramado por: Marcos
Répteis da Estação Ecológica Serra Geral do Tocantins, Brasil Central
Renato Sousa Recoder1,5, Mauro Teixeira Junior1, Agustín Camacho1, Pedro Murilo Sales Nunes1,
Tamí Mott2, Paula Hanna Valdujo3, José Mario Ghellere1, Cristiano Nogueira4 & Miguel Trefaut Rodrigues1
1Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo – USP,
Rua do Matão, Trav. 14, nº 321, Cidade Universitária, CP 11461, CEP 05508-090, São Paulo, SP, Brasil
2Universidade Federal de Mato Grosso – UFMT, Av. Fernando Correa da Costa s/n, Coxipó,
CEP 78060-900, Cuiabá, MT, Brasil
3Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo – USP,
Rua do Matão, Trav. 14, nº 321, Cidade Universitária, CEP 05508-090, São Paulo, SP, Brasil
4Conservação Internacional do Brasil, Programa Cerrado-Pantanal, Departamento de Zoologia,
Universidade de Brasília – UnB, CEP 70910-900, Brasília, DF, Brasil
5Autor para correspondência: Renato Sousa Recoder, e-mail: renatorecoder@gmail.com.
RECODER, R.S.,TEIXEIRA JUNIOR, M., CAMACHO, A., NUNES, P.M.S., MOTT, T., VALDUJO, P.H.,
GHELLERE, J.M., NOGUEIRA, C. & RODRIGUES, M.T. Reptiles of Serra Geral do Tocantins
Ecological Station, Central Brazil. Biota Neotrop. 11(1): http://www.biotaneotropica.org.br/v11n1/en/
abstract?article+bn03611012011.
Abstract: The South American Cerrado harbors a rich reptilian fauna with high number of endemics. However,
knowledge of this diversity is still incipient in front of accelerated transformation of natural landscapes, which
makes the domain a “hotspot” for study and conservation of global biodiversity. Studies on the reptile fauna of
Cerrado are urgently needed for a better understanding of the processes that led to their origin and distribution
and to support conservation planning. We used standard methods to sample two unexplored regions of the Serra
Geral do Tocantins Ecological Station (EESGT), located in the Jalapão region of the Cerrado domain. We recorded
45 species of reptiles for the EESGT and surroundings, which represents high species richness, comparable to
other well-sampled regions of the Cerrado. Accumulation curves and estimators indicate that sampled richness
of lizards and amphisbaenas are close to real values. However, current sampling underestimates snake richness.
The non-random distribution of species in the landscape agrees with previous evidence suggesting differential
use of habitats by Cerrado reptiles. Combining the results of this study with those of previous surveys conducted
in the region, we recorded 88 species of reptiles for the Jalapão region with eight new records, including Bachia
oxyrhina, a recent described species of this region. We found three general patterns of distribution: (1) species
endemic of the Cerrado domain, (2) species shared with the domains of the South American diagonal of tropical
open formations, (3) species widely distributed, also shared with forest ecosystems. Species of wide distribution
prevails in the region, but there is large number of species typical of the Cerrado, possibly including five endemics
to Jalapão, and there is an important contribution of the Caatinga fauna. The distribution of reptile species in local
and regional scales shows the need to consider the landscape heterogeneity for adequate conservation planning in
the Cerrado region. Because of the physical and biotic characteristics, EESGT has a key role in the preservation
and knowledge of the diversity of Cerrado reptiles.
Keywords: Cerrado, Squamata, lizards, snakes, amphisbaenas, diversity, Jalapão, conservation.
RECODER, R.S.,TEIXEIRA JUNIOR, M., CAMACHO, A., NUNES, P.M.S., MOTT, T., VALDUJO, P.H.,
GHELLERE, J.M., NOGUEIRA, C. & RODRIGUES, M.T. Répteis da Estação Ecológica Serra
Geral do Tocantins, Brasil Central. Biota Neotrop. 11(1): http://www.biotaneotropica.org.br/v11n1/pt/
abstract?article+bn03611012011.
Resumo: Os Cerrados sul-americanos abrigam alta diversidade de répteis, incluindo elevado número de
endemismos. No entanto, o conhecimento desta diversidade é ainda incompleto frente à acelerada transformação das
paisagens naturais no Brasil central. Constituem, portanto, uma das regiões prioritárias para estudo e conservação
da biodiversidade mundial. Estudos intensivos sobre a fauna de répteis do Cerrado são necessários e urgentes para
melhor compreensão dos processos que levaram à sua origem e distribuição e para subsidiar ações de conservação.
Por meio de métodos padronizados, amostramos duas regiões ainda inexploradas da Estação Ecológica Serra Geral
do Tocantins, situada na região do Jalapão. Registramos 45 espécies de répteis para a EESGT e entorno, o que
representa uma riqueza alta e comparável à de outras regiões bem amostradas do Cerrado. Curvas de acumulação
e estimadores indicam que a riqueza local de lagartos e anfisbenídeos aproxima-se da riqueza real enquanto a de
serpentes é subestimada. A distribuição não-aleatória das espécies na paisagem concorda com evidências anteriores
sugerindo utilização diferencial dos hábitats pelos répteis. Reunindo os resultados do presente estudo com os de
levantamentos prévios realizados na região, registramos 88 espécies de répteis para o Jalapão sendo oito registros
novos que incluem Bachia oxyrhina uma espécie recém descrita da região. As espécies da área apresentam três
e-mail: biota@infocentral.com.br
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