Bird species numbers in an archipelago of reeds at Lake Velence, Hungary

摘要: 1 Bird species numbers were studied on 109 reed islands at Lake Velence, Hungary, in the 1993 and 1994 breeding seasons. The aim was to describe account for abundance distribution patterns of bird species. 2 It expected that an exponential model would fit calculated species–area curves. However, data, both power function (LogS ~ LogArea) (S ~ LogArea) models did so, while function, linear (S ~ A) fitted curves data. 3 The results showed pattern not random: a collection small held more than few large with same total area. 4 The relative richness is result preference most common passerine edges islands. Most individuals found first 5 m reedbed, no edge avoidance detected local spatial scale. Large, rarer (e.g. Great White Egret), however, be dependent islands. 5 Comparison two other studies communities revealed type landscape matrix deep water, shallow water or agricultural lands) among patches significantly influences communities. Deep dominated by grebes coot, reed-nesting passerines, farmed areas reed- bush-nesting passerines.