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Gravel pits support waterbird diversity in an urban landscape

Santoul, Frédéric and Gaujard, A. and Angélibert, Sandrine and Mastrorillo, Sylvain and Céréghino, Régis Gravel pits support waterbird diversity in an urban landscape. (2009) Hydrobiologia, 634 (1). 107-114. ISSN 1573-5117

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Official URL: http://dx.doi.org/10.1007/s10750-009-9886-6

Abstract

We assessed the benefit of 11 gravel pits for the settlement of waterbird communities in an urbanized area lacking natural wetlands. Gravel pits captured 57% of the regional species pool of aquatic birds. We identified 39 species, among which five were regionally rare. We used the Self Organizing Map algorithm to calculate the probabilities of presence of species, and to bring out habitat conditions that predict assemblage patterns. The age of the pits did not correlate with assemblage composition and species richness. There was a positive influence of macrophyte cover on waterbird species richness. Larger pits did not support more species, but species richness increased with connectivity. As alternative wetland habitats, gravel pits are attractive to waterbirds, when they act as stepping stones that ensure connectivity between larger natural and/or artificial wetlands separated in space.

Item Type:Article
Additional Information:Thanks to Springer Verlag editor. The definitive version is available at http://link.springer.com/article/10.1007%2Fs10750-009-9886-6
HAL Id:hal-00913138
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Fédérations des Chasseurs de Midi-Pyrénées - FRC (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Haute Ecole Spécialisée de Suisse Occidentale - HES-SO (SWITZERLAND)
Laboratory name:
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Deposited By: Frédéric Santoul
Deposited On:03 Dec 2013 10:57

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