Invertebrates diversity in mountain neotropical quartzite caves: which factors can influence the composition, richness, and distribution of the cave communities?


Publication type
Article
Language
English
Access rights
Open Access
Appears in Collections:
Metrics
Abstract
Twenty caves located in a high altitudinal quartzite area in Brazil were examined for invertebrate richness and composition and in terms of environmental factors that determine community structure. We evaluate how distance, altitude, cave extension, environmental stability, number and size of cave entrances and stream presence can act on species composition and richness. The caves presented a high richness of troglophilic (463 spp.) and troglobitic species (6 spp.) in relation to other siliciclastic caves around the world. The average richness was 39.55 species per cave (sd = 21.87), the quantitative similarity among caves was 41% and turnover was βrepl. = 0.769. Araneae (20% of the sampled species), Diptera (18%) and Coleoptera (14%) were the dominant orders regarding species richness. Only twenty percent of the caves were placed out of the confidence interval of the average taxonomic distinctness (∆+); however, the ∆+ decreased with the increase of environmental stability. Cave extension and stream presence were the main factors determining the variation of species composition among caves. Cave extension also influenced species richness variations. Furthermore, the total richness and richness of troglobitic species increased with cave extension. The threats to these habitats further revealed that the fauna is at risk due to tourism, trampling and natural soil erosion that can promote microhabitat alterations. Therefore, quartzite caves also require special attention regarding conservation actions in order to keep their natural biological dynamics.
Reference
Silva MS, Iniesta LFM, Ferreira RL. Invertebrates diversity in mountain neotropical quartzite caves: which factors can influence the composition, richness, and distribution of the cave communities?. Subterr. Biol.. 2020 Feb;33:23–43. doi:10.3897/subtbiol.33.46444.
Link to cite this reference
https://repositorio.butantan.gov.br/handle/butantan/3685
Journal title
Issue Date
2020


Files in This Item:

Existing users please Login
10.3897subtbiol.33.46444.pdf
Description:
Size: 3.99 MB
Format: Adobe PDF
Embargoed until January 1, 2999    Request a copy
Show full item record

The access to the publications deposited in this repository respects the licenses from journals and publishers.