Navegando por Assunto "Troglobiont"
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Item A new troglomorphic Charinus from Minas Gerais state, Brazil (Arachnida: Amblypygi: Charinidae)(Revista Ibérica de Aracnologia, 2003) Baptista, Renner Luiz Cerqueira; Giupponi, Alessandro Ponce de Leão- Spelaeobochica mahnerti, a new cave-dwelling pseudoscorpion from Brazil(Arachnida: Pseudoscorpiones: Bochicidae), with comments on the troglomorphism of the Brazilian bochicid species(2020-02-04) VIANA, ANA CLARA M.; FERREIRA, RODRIGO L.Spelaeobochica mahnerti sp. n., found in a limestone cave located in the municipality of Monjolos (Minas Gerais state, Southeastern Brazil), is described. It differs from congeneric species mainly by the rallum with 3 apically dentate blades, the position of the trichobothrium ib in the far distal half of the hand dorsum (near the base of fixed finger), the smooth subterminal setae, and by the arolia that are a little longer than the claws. A key to the species of Spelaeobochica is provided, as well as information on the habitat and threats for this new species. We further discuss troglomorphic traits in Brazilian species of Bochicidae.
Item The Água Clara cave system in Northeastern Brazil: the richest hotspot of subterranean biodiversity in South America(2023-06-09) Ferreira, Rodrigo Lopes; Berbert-Born, Mylène; Souza-Silva, MarconiThe 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.