Who bullies whom at a garden feeder?: interspecific agonistic interactions of small passerines during a cold winter
Katarzyna Wojczulanis-Jakubas , Monika Kulpińska , Piotr Minias
AbstractInterspecific agonistic interactions are important selective factors for maintaining ecological niches of different species, but their outcome is difficult to predict a priori. Here, we examined the direction and intensity of interspecific interactions in an assemblage of small passerines at a garden feeder, focussing on three finch species of various body sizes. We found that large and medium-sized birds usually initiated and won agonistic interactions with smaller species. Also, the frequency of fights increased with decreasing differences in body size between the participants. Finally, the probability of engaging in a fight increased with the number of birds at the feeder.
|Journal series||Journal of Ethology, ISSN 0289-0771, (A 20 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||agonistic interactions, feeder, finches, interspecific competition|
|License||Other; published final; ; with publication|
|Score|| = 20.0, 03-01-2020, ArticleFromJournal|
= 20.0, 03-01-2020, ArticleFromJournal
|Publication indicators||= 5; : 2015 = 0.693; : 2015 = 0.848 (2) - 2015=1.051 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.