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Schweiger, A*; Fünfstück, H-J; Beierkuhnlein, C: Prey size affects reproductive success and global distribution of the Golden Eagle
Poster, EU MAcro 2015, Copenhagen: 2015-06-14 - 2015-06-16

Abstract:
Whereas abiotic environmental factors like climate are well known to affect global species distribution, effects of biotic factors such as food availability are sparsely investigated so far. For Golden Eagles we observed a globally consistent decrease of reproductive success and portion of foraged optimal sized prey species but an increase of diet breadth and portion of sub-optimal sized prey species towards the range edges. This highlights the importance of biotic factors such as optimal prey availability in terms of reproductive success and global distribution patterns of predator species.

last modified 2015-08-06