期刊
IBIS
卷 157, 期 2, 页码 406-412出版社
WILEY
DOI: 10.1111/ibi.12247
关键词
arthropods; fen mires; habitat requirements; management regime; vegetation structure
类别
资金
- EU LIFE [LIFE05 NAT/PL/000101]
To identify optimal habitat for the Aquatic Warbler Acrocephalus paludicola, a flagship species of fen mires, we related numbers of singing males to habitat variables in all core breeding sites in eastern Poland. The density of male Aquatic Warblers increased with increasing ground cover by water and mosses and litter layer height, and was highest where vegetation was 60-90cm tall. Male densities also increased with the biomass of arthropods >10mm length, estimated by sweep netting, and with the abundance of spiders, estimated by pan trapping. We suggest that habitat management should take into account species-specific morphological adaptations, nest safety and arthropod productivity. Prevention of vegetation succession is a conservation priority for open fen mires. However, modern management practices to achieve this, especially mowing using tracked vehicles, should be evaluated and optimized to ensure that such practices do not adversely affect the long-term development of moss cover and litter structure.
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