Journal
BIOLOGICAL CONSERVATION
Volume 100, Issue 3, Pages 335-343Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0006-3207(01)00037-4
Keywords
agricultural wetlands; Camargue; habitat selection; ricefields; waterbirds
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Rice cultivation has frequently been suggested to provide an important wetland habitat for waterbirds. However, in contrast to most other regions of the Mediterranean, the Camargue still has a substantial amount of surface area of natural marshes. Thus, we compared the abundance, species richness, and community composition of waterbirds in ricefields and natural marshes of the Camargue, during a one-year study. Based on surveys conducted rat 4-7 day intervals in 1997-1998, our results suggest that natural marshes had substantially greater abundance of waterbirds, with ca. 99% of the individuals having been observed in natural marshes. Estimates of species richness and associated parameters further indicated that ricefields were clearly less rich than natural marshes. Although our results were rather striking for the Camargue, they may not be applicable to other regions because of the relatively high availability of natural marshes and differences in management of ricefields. (C) 2001 Elsevier Science Ltd. All rights reserved.
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