Noticias

[EN] Drivers of phylogenetic structure in Amazon freshwater fish assemblages

In this paper, published in Journal of Biogeography, using the AmazonFish database and a global molecular phylogeny of ray-finned fishes, we evaluated the respective roles of historical and contemporary processes in generating and maintaining fish assemblage phylodiversity patterns among 97 sub-drainages covering the
Amazon River basin. Phylogenetic diversity showed a highly non-random spatial distribution across the Amazon basin with a significant West-East decline in subdrainage assemblages phylogenetic clustering. The Western Amazon can be seen as an evolutionary “cradle” of biodiversity for freshwater fishes.
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[EN] The representativeness of protected areas for Amazonian fish diversity under climate change

In this paper, published in Aquatic Conservation, Marine and Freshwater Ecosystems, we aimed to evaluate the effectiveness of PAs in representing the Amazon fish fauna under current and future climatic conditions. We used a macroecological approach 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.
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[EN] The combined effects of climate change and river fragmentation on the distribution of Andean Amazon fishes

In this paper, published in Global Change Biology, combining species distribution models and functional traits of Andean Amazon fishes, coupled with dam locations and climatic projections (2070s), we (a) evaluated the potential impacts of future climate on species ranges, (b) investigated the combined impact of river fragmentation and climate change and (c) tested the relationships between these impacts and species functional traits. Results show that climate change will induce range contraction for most of the Andean Amazon fish species, particularly those inhabiting highlands. Dams are not predicted to greatly limit future range shifts for most species.
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[EN] A database of freshwater fish species of the Amazon Basin

Published in Scientific Data, our database provides the most complete fish species distribution records covering the whole Amazon drainage, with 2,406 validated freshwater native fish species, 232,936 georeferenced records, results from an extensive survey of species distribution including 590 different sources (e.g. published articles, grey literature, online biodiversity databases and scientific collections from museums and universities worldwide) and field expeditions conducted during the project.
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