BREEDING STATISTICS OF THE AQUATIC WARBLER ACROCEPHALUS-PALUDICOLA ONTHE BIEBRZA MARSHES, NORTHEAST POLAND

Authors
DYRCZ A ZDUNEK W
Citation
A. Dyrcz et W. Zdunek, BREEDING STATISTICS OF THE AQUATIC WARBLER ACROCEPHALUS-PALUDICOLA ONTHE BIEBRZA MARSHES, NORTHEAST POLAND, Journal fur Ornithologie, 134(3), 1993, pp. 317-323
Citations number
24
Categorie Soggetti
Ornithology
Journal title
Journal fur Ornithologie → ACNP
ISSN journal
00218375
Volume
134
Issue
3
Year of publication
1993
Pages
317 - 323
Database
ISI
SICI code
0021-8375(1993)134:3<317:BSOTAW>2.0.ZU;2-7
Abstract
The study population of the Aquatic Warbler showed a low proportion of unfertile eggs (8.6 %), very low nest losses (17.9 %), including loss es from predation (11.1 %), and high average production of fledglings per nest (3.25 +/-1.9) compared with populations of its congeners and other related species. As adult mortality also seems low, it is conclu ded that the main threat to this endangered species in the study area may be change of habitat.