Journal Article
The Água Clara cave system in northeastern Brazil: The richest hotspot of subterranean biodiversity in South America
Ferreira, R.L., Berbert-Born, M. and Souza-Silva, M.
Record Number:
6205
Year:
2023
Journal:
Diversity
Pages:
1-23
Volume:
15, 761
Abstract:
Abstract: The Água Clara Cave System (ACCS) in Brazil is the richest hotspot of subterranean
biodiversity in South America. In this study, we present an updated list of cave-restricted species
in the ACCS and compare it with previously published hotspots in Brazil. Our list of cave-obligate
fauna comprises 31 species, including 23 troglobionts and 8 stygobionts. The exceptional diversity of
the ACCS can be attributed to factors related to the high dispersal potential of cave fauna within the
system, high surface productivity, and the large size of the cave system size. Notably, we observed
highly troglomorphic species in the ACCS, some of which are the most troglomorphic species in their
respective groups in Brazil. The huge volume of galleries, high humidity, and trophic conditions
prevailing in the ACCS may have played a role in shaping the strong troglomorphic traits observed in
these species. However, all the obligate cave species in the ACCS require conservation attention and
are at an elevated risk of extinction due to their limited ranges, few occurrences, and many potential
threats. This study sheds light on the biodiversity and conservation status of cave-restricted fauna in
the ACCS and highlights the importance of protecting these unique ecosystems.
Times Cited:
1
Relevent Species:
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