Temporal and spatial distribution of anuran fauna in different environments in Hidrolândia, Goiás State, Central Brazil

Authors

  • Felipe Siqueira Campos
  • Wilian Vaz-Silva

DOI:

https://doi.org/10.4013/4764

Abstract

The environmental degradation has resulted in decline of several anuran populations. The present work aim was to analyze ecological aspects of anuran assemblages in different environments in the municipality of Hidrolândia, Goiás, relating the environmental heterogeneity with the breadth and spatial niche overlap, in addition to producing information about the richness, the abundance, and the spatial and temporal distribution of the local populations. The samples were realized monthly among September 2006 and August 2007, by visits with three days of duration, in five different environments of the region. Twenty-two species of anurans were registered, with an abundance of approximately 4.000 specimens, classified in 11 genus and six families. The most abundant species were Dendropsophus minutus, D. Cruzi, and Physalaemus cuvieri. The habitat with the biggest spatial heterogeneity was also the one with the biggest species diversity (1.03). The sampled environments presented a high anuran fauna similarity, showing a greater similarity in forests and anthropic environments. In order to describe the limits and the interpenetration of spatial distribution activities of each species registered, analysis of breadth and spatial niche overlap were realized. The set of data analyzed has determined a direct influence of environmental spatial heterogeneity in the richness and in the spatial and temporal share of local anurans.

Key words: environmental heterogeneity, spatial and temporal distribution, anurans.

Published

2021-06-15