Regional and local environmental correlates of native Iberian fish fauna

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Ferreira, MT (Author) Other; Sousa, L (Author) Other; Santos, JM (Author) Other; Reino, L (Author) Other; Oliveira, J (Author) Other; Pedro Almeida (Author) Other; Cortes, RV (Author) Other

Journal

Title: Ecology of Freshwater Fish

Vol. 16

Pages: 504-514

ISSN: 0906-6691

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 32 Citations

Scopus - 42 Citations

Other information

Authenticus ID: P-004-5XR

DOI: 10.1111/j.1600-0633.2007.00241.x

Abstract (EN): Knowledge of fishes' habitat requirements is an essential tool for species conservation. We examined the habitat requirements of nine native freshwater fish species using 165 undisturbed or minimally disturbed sites from eight river basins in western Iberia (northern and central Portugal). Six environmental descriptors were considered at the regional level, and six descriptors at a local scale. Statistical associations between local assemblage structure and environmental variables were quantified by canonical correspondence analyses. Logistic regression was performed for each species to identify regional and local factors related to its distribution at the sample sites. The results suggested a reasonable degree of specialisation in the use of local variables and dependence on regional variables. Logistic regression models showed a good adjustment (0.75 < AUC < 0.93). Results of habitat modelling using minimally disturbed sites helped to clarify species preferences for specific abiotic drivers.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11