@misc{Poulin_Brigitte_(1962–_)_Spatial_2000,
 author={Poulin, Brigitte (1962– ) and Lefebvre, Gaëtan (1962– ) and Metref, Slimane},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 editor={Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)},
 copyright={Rights Reserved - Restricted Access},
 address={Warszawa},
 howpublished={online},
 year={2000},
 language={eng},
 language={pol},
 abstract={Many reedbed passerines forage outside their nesting territory. This peculiar behaviour could allow reproductive individuals to feed in areas where resources are plentiful and/or to nest in areas where predation risks are low. These hypotheses were investigated for the Moustached Warbler Acrocephalus melanopogon and the Reed Warbler A. scirpaceus in a 40-ha of reedbed in southern France. Vegetation structure, abundance of arthropod-prey, location of singing males, and bird local abundance were estimated along three transects 1-km long and 125-m distant parallel to the shore. Reed density increased from the lake inland, concurrently with a decrease in plant diversity. Food availability (sweep-netted arthropods weighted by their occurrence in species diet) varied positively with plant diversity and negatively with reed density. The dummy-nest experiment suggested a negative relationship between predation risks and reed density. While local abundance of each Acrocephalus species correlated spatially with food abundance, singing males were distributed evenly among the three transects. This suggests that predation risk associated with vegetation density has little influence on nest-site selection. The regular spacing of singing males further suggests that predation risk is primarily affected by nest density.},
 type={Text},
 title={Spatial distribution of nesting and foraging sites of two Acrocephalus warblers in a Mediterranean reedbed},
 volume={35},
 number={1},
 journal={Acta Ornithologica},
 publisher={Muzeum i Instytut Zoologii PAN},
 keywords={Moustached Warbler, Eurasian Reed Warbler, Reed Warbler, nest predation, France, mouth of the Rhône, congresses, reedbeds, food availability, reed structure, birds, Acrocephalus melanopogon, Acrocephalus scirpaceus, Sylviidae, Aves},
}