Are there co-occurrence patterns that structure snake communities in Central Brazil?

Brazilian Journal of Biology

Fgr. França²  Afb. Araújo¹ 

[1] ,Universidade de Brasília Departamento de Ecologia Programa de pós-graduação em EcologiaBrasília DF ,Brazil

关键词: snakes;    Central Brazil;    community;    null models;    Cerrado;    serpentes;    Brasil Central;    comunidade;    modelos nulos;    Cerrado;   

DOI  :  10.1590/S1519-69842007000100005

来源: SciELO

【 摘 要 】

The main factors that structure Neotropical animal communities have been the subject of discussion in ecology communities. We used a set of null models to investigate the existence of structure in snake communities from the Cerrado in Central Brazil in relation to the co-occurrence of species and guilds concerning specific resources. We used fragments (conservation units) inside the Distrito Federal and neighbor municipalities. In spite of recent human colonization in the region from the end of the 1950’s, intense habitat modification and fragmentation has taken place. Sixty three snake species are present in the Distrito Federal. Co-occurrence analysis of species and guilds associated to snake diets and habitats suggested a lack of organization. The homogeneity of habitats in Central Brazil and the minor importance of ecological effects can lead to random arrangement.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License