Avaliação do estado de conservação das aves brasileiras e da eficiência dos esforços conservacionistas através das listas vermelhas de espécies ameaçadas

• Autor(a) principal: Spindola, João Paulo da Silva
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/12835
• topic: Aves; Espécies ameaçadas; Conservação; Lista vermelha; RLI; Birds; Endangered species; Conservation; Red list; CIENCIAS BIOLOGICAS::ECOLOGIA

The Planet is going through a Biodiversity crisis, the current extinction rates may be up to 1000 times greater than the natural background rates. Because of this, international policies were signed, with the purpose to mitigate the loss of biodiversity. The Red List Index (RLI) is among the adopted indicators to evaluate the performance of conservation actions put into action by countries. The RLI is calculated using information of changes in the red lists categories to a set of species. This tool has been largely applied both at regional, and the global levels in order to make a systematic biodiversity monitoring. Here, we applied the RLI to native Brazilian birds in the time interval of 1988-2012. We have explored the trends in the RLI between different biomes, taxonomic orders and threats. Furthermore, we evaluated the National Actions Plans (PAN, in Portuguese) in order to assess their effectiveness through the RLI. We found out that despite conservation actions, the overall trend is an increased extinction risk. Between the biomes, the Amazon presents the greater decline in bird conservation status. The factor that caused the greatest increase in threat is the impact of road construction. The PAN uses an approach of reactive conservation, focusing on species already threatened. In the absence of conservation efforts the RLI to endemic species would have declined an additional of 12.95%.