 ISSN 0235-7224 ISSN 2029-0586 (online) |
2008 m. Nr. 2 Comparison of fine-scale spatial distribution and nest-site selection in great crested grebe (Podiceps cristatus) and coot (Fulica atra)
Tests were performed for differences in the distribution over the patches of emergent vegetation and in nest-site selection between nesting great crested grebe and coot on lakes Meteliai, Obelija and Žaltytis of southern Lithuania. Coot is more widely dispersed than great crested grebe, however, a significant spatial overlap exists between the two species. The distribution of great crested grebe is much more clumped than that of coot. Patches with nests of both species have larger areas of well-waterlogged reedbeds than those occupied by only one of the species. Coot, in comparison with great crested grebe, builds nests in shallower and more densely vegetated parts of reedbeds. Keywords: coot, great crested grebe, nest-site, patch of emergent vegetation, reedbeds, distribution |
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