The representativeness of protected areas for Amazonian fish diversity under climate change

Renata G. Frederico, Murilo S. Dias, Céline Jézéquel, Pablo A. Tedesco, Bernard Hugueny, Jansen Zuanon, Gislene Torrente-Vilara, Hernan Ortega, Max Hidalgo, Koen Martens, Javier Maldonado-Ocampo, Thierry Oberdorff

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

The Amazon basin has been subjected to extreme climatic events and according to climate change projections this hydrosystem could face changes in the natural dynamic of flood cycles that support the feeding and reproduction of many fish species, threatening aquatic biodiversity. Protected areas (PAs) are the main tools used to safeguard the biodiversity in the long term; however, they are fixed areas that could be subject to climate change, questioning their future efficiency in protecting biodiversity. The Amazon basin currently benefits from a relatively high level of protection as 52% of its catchment area is under the form of true PAs or indigenous lands. However, the capacity of these PAs to protect freshwater biodiversity remains unclear as they have generally been assessed with little regard to freshwater ecosystems and their hydrological connectivity. Here, the aim was to evaluate the effectiveness of PAs in representing the Amazon fish fauna under current and future climatic conditions. A macroecological approach was used to estimate the minimum size of the geographical range needed by each species to achieve long-term persistence, by a combined function of range size and body size, two ecological traits known to influence species extinction risk. In future the Amazon basin could risk losing 2% of its freshwater fish fauna owing to unsuitable climatic conditions, with a further 34% adversely affected. The present Amazon network of PAs will cover the minimum required range for species persistence for more than 60% of the freshwater fish species analysed under the future climate scenario. However, more than 25% of the future susceptible species are currently concentrated in large tributaries and in the central-lower Amazon floodplain where few PAs occur, highlighting the lack of appropriate conservation actions for these specific water bodies.

Idioma originalInglés
Páginas (desde-hasta)1158-1166
Número de páginas9
PublicaciónAquatic Conservation: Marine and Freshwater Ecosystems
Volumen31
N.º5
DOI
EstadoPublicada - may 2021

Nota bibliográfica

Publisher Copyright:
© 2021 John Wiley & Sons, Ltd.

Huella

Profundice en los temas de investigación de 'The representativeness of protected areas for Amazonian fish diversity under climate change'. En conjunto forman una huella única.

Citar esto