CECAV
URI permanente desta comunidadehttps://bdc.icmbio.gov.br/handle/cecav/1
Centro Nacional de Pesquisa e Conservação de Cavernas
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2 resultados
Resultados da Pesquisa
- Priorities for cave fauna conservation in the Iuiú karst landscape, northeastern Brazil: a threatened spot of troglobitic species diversity(2021-03-20) Costa Cardoso, Rafael; Lopes Ferreira, Rodrigo; Souza-Silva, MarconiThe definition of priority for conservation becomes an emergency because habitat loss and degradation are among the main impacts on karst landscapes. In this sense, the present study aimed to evaluate the priorities for cave conservation through the combination of indexes that use species richness, species distribution, and proportion of the deforested area (PDA). The caves presented 287 non-troglobitic species and 37 species (11.7 %) with troglomorphic traits that are distributed in 50 % of the caves. The caves also present a high phylogenetic and functional diversity of terrestrial, aquatic, and amphibious cave-restricted species, including many predators, scavengers, and one phytophagous species, most of them presenting remarkable specialized traits and restrict distribution in a few caves and in specific biotopes. The PDA were positively related to the distance from the limestone outcrop, because of the restrictive landforms for agropastoral activities. At least two caves present extremely high priority for conservation (Baixão and Baixa da Fortuna caves), while four caves present high priority, and almost all others require at least a conservation action. Suggestively, in this specific case, a coherent strategy was shown to maintain the preserved vegetation around the caves, improving the restoration of small fragments and minimizing alterations. Despite the results of the indices, the singularity of the area regarding the taxonomic and functional diversity of troglobites also reinforces the urgent need for conservation actions.
Item The Wynberg Cave System, the most important site for cave fauna in South Africa at risk(2020) Lopes Ferreira, Rodrigo; Giribet, Gonzalo; Du Preez, Gerhard; Ventouras, Oresti; Janion, Charlene; Souza Silva, MarconiThe Wynberg Cave System, located on the Cape Peninsula, represents one of the most significant sites of cave fauna in southern Africa. However, the continuous increase in cave visitation is severely impacting the system as evidenced by graffiti, the trampling and destruction of cave habitats and even a reduction in the sizes of bat colonies. In October 2019, the Wynberg Cave System was visited by a group of scientist, who discovered unregistered troglomorphic species. This, subsequently increased the number of troglobites occurring in the system to 19, which likely means that this system has the potential to become the first hotspot of subterranean biodiversity in Africa. Protecting the Wynberg Cave System is therefore of great importance. Here, we propose short and long-term strategies that include educating local communities on the importance of conserving caves and installing gated entrances.