CECAV
URI permanente desta comunidadehttps://bdc.icmbio.gov.br/handle/cecav/1
Centro Nacional de Pesquisa e Conservação de Cavernas
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6 resultados
Resultados da Pesquisa
Item Before it’s too late: priority areas for conservation of cryptic and threatened species of troglobitic arthropods in the Brazilian semiarid(2024-04-18) Bento, Diego de Medeiros; Ferreira, Rodrigo Lopes; Vasconcelos, Santelmo; Lima, Jamily Lorena Ramos de; Oliveira, Guilherme; Silva, Tiago Castro; Lima, Sergio Maia QueirozOne of the most important steps in identifying priority areas for conservation is the assessment of species richness and their extinction risks. While most species remain undescribed, the identification of cryptic lineages is frequent in phylogenetic and phylogeographic studies. This is particularly common in troglobites, exclusively subterranean organisms. The Jandaíra Formation, in the Brazilian semiarid, combines the occurrence of extensive karstic areas with hundreds of caves and subterranean aquifers in a region with intense paleoclimatic changes. This region is recognized for the richness of troglobitic species, some of which are widely distributed in heterogeneous areas. This suggests cryptic lineages that can be differentially exposed to anthropogenic threats, with distinct extinction risks regarding the nominal taxa of which they putatively belong. To test it, a large sampling was conducted and, by means of lineage delimitation analyses, the genetic structure of four troglobitic taxa, three aquatic and one terrestrial, was evaluated. In addition, the extinction risk of these lineages was assessed and priority areas for conservation were identified. The results indicated that while Cirolanidae sp. 1 (Isopoda) is a single species widely distributed, Cirolanidae sp. 2, Potiberaba porakuara (Amphipoda) and Kinnapotiguara troglobia (Hemiptera) present an extensive diversity of cryptic and endemic lineages, most of which are likely new threatened species. Furthermore, two priority areas for conservation of these lineages were identified. Thus, comparative phylogeography may represent a first step in the conservation of subterranean taxa, indicating areas that should be prioritized in a context of increasing threats and dwindling conservation resources.Item Diversidade de invertebrados em cavernas calcárias do Oeste Potiguar: subsídios para a determinação de áreas prioritárias para conservação(UFRN, 2011) Bento, Diego de Medeiros; Vasconcellos, Alexandre; Ferreira, Rodrigo LopesDissertação apresentada à Universidade Federal do Rio Grande do Norte como parte das exigências de Programa de Pós-Graduação em Ciências Biológicas, área de concentração em Biodiversidade: Biologia de populações, comunidades e ecossistemas, para a obtenção do título de MestreItem Diagnóstico ambiental preliminar do patrimônio espeleológico do município de Paripiranga/BA(SBE, 2013-07) Santana, Matusalén Silva; Silva, Fernando Andrade; Bento, Diego de MedeirosItem Parque Nacional da Furna Feia – o parque nacional com a maior quantidade de cavernas do Brasil(SBE, 2013-07) Bento, Diego de Medeiros; Cruz, Jocy Brandão; Santos, Darcy José; Freitas, José Iatagan Mendes de; Campos, Uilson Paulo; Souza, Roberta Freitas de RezendeItem Mapeamento, Caracterização Ambiental e Relevância do Patrimônio Espeleológico de Felipe Guerra/RN(SBE, 2011-07) Bento, Diego de Medeiros; Cruz, Jocy Brandão; Ferreira, Rodrigo Lopes; Veríssimo, César Ulisses; Xavier Neto, PedroItem Análise Estrutural e Petrográfica da Caverna do Desafio Situada em Felipe Guerra, Rio Grande do Norte(SBE, 2011-07) Silva, Kelfrank Ferreira da; Veríssimo, Cesar Ulisses Vieira; Santos, Jefferson Lima dos; Bento, Diego de Medeiros