Habitat selection in a recovering Osprey Pandion haliaetus population

Authors
Citation
A. Lohmus, Habitat selection in a recovering Osprey Pandion haliaetus population, IBIS, 143(4), 2001, pp. 651-657
Citations number
36
Categorie Soggetti
Animal Sciences
Journal title
IBIS
ISSN journal
00191019 → ACNP
Volume
143
Issue
4
Year of publication
2001
Pages
651 - 657
Database
ISI
SICI code
0019-1019(200110)143:4<651:HSIARO>2.0.ZU;2-M
Abstract
Sequential habitat occupation and productivity of Ospreys Pandion haliaetus were studied in the recovering Estonian population from 1985 to1999. Durin g this period, the number of known nests increased from five to 32. Nest-si tes closer to the foraging grounds and with more lakes nearby were occupied first and had the highest productivity, Through a reduction in the quality of sites available, the average productivity of Ospreys decreased as their numbers rose, consistent with despotic distribution models. The sites occu pied first during the recolonization were also those that had been the last to be abandoned during the population's decline prior to 1980. However, ne wcomers preferred sites near established pairs. Therefore, conspecific attr action explained some stochasticity left unexplained by deterministic resou rce models.