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Open Access item Fish fauna in Iberian Mediterranean river basins: biodiversity, introduced species and damming impacts
|Keywords:||freshwater ﬁsh, river impoundment, ﬁsh conservation, biodiversity assessment|
|Publisher:||John Wiley & Sons|
|Citation:||Aquatic Conserv: Mar. Freshw. Ecosyst. 14 : 575–585 (2004|
|Abstract:||1. A basin approximation was used to analyse distribution patterns of diﬀerent components of biodiversity (taxonomic richness, endemicity, taxonomic singularity, rarity) and conservation status of freshwater ﬁsh fauna in 27 Mediterranean Iberian rivers.
2. Basin area alone explained more than 80% of variation in native species richness. Larger basins featured not only a higher number of native species, but also more endemic and rare species and fewer diversiﬁed genera than smaller basins.
3. In contrast, smaller basins scored higher community conservation values, owing to their lower degree of invasion by introduced species.
4. The presence of dams was the most important factor determining the conservation status of ﬁsh
communities, and it was also positively associated with the number of introduced species.
5. While the most important components of Iberian freshwater ﬁsh biodiversity are located in
large basins, small unregulated basins feature better conserved ﬁsh communities.|
|Publisher version (URL):||http://onlinelibrary.wiley.com/doi/10.1002/aqc.636/pdf|
|???metadata.dc.identifier.doi???:||10.1002 / aqc.636|
|Appears in Collections:||(EBD) Artículos|
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