Safe, selfish state-independent mobbing behaviour in the cooperatively breeding apostlebird (Struthidea cinerea)
نویسندگان
چکیده
......................................................................................................................................... 2 Introduction .................................................................................................................................... 3 Mobbing behaviour in birds ................................................................................................................................ 3 Mobbing in cooperative breeders ....................................................................................................................... 7 State-dependent mobbing behaviour .................................................................................................................. 8 Aims of the study ........................................................................................................................... 11 Methods ......................................................................................................................................... 12 Study Species ......................................................................................................................................................12 Study Site .............................................................................................................................................................12 Experimental method ..........................................................................................................................................12 Schedule ...............................................................................................................................................................15 Video analysis .....................................................................................................................................................16 Genetic Analysis .................................................................................................................................................17 Data Analysis ......................................................................................................................................................17 Results ........................................................................................................................................... 19 Distance as measure of mobbing .......................................................................................................................19 Within-individual differences in distance ........................................................................................................20 Asessing state-dependence .................................................................................................................................23 Between-subject effects ......................................................................................................................................25 Group level effects ..............................................................................................................................................27 Discussion...................................................................................................................................... 29 References ..................................................................................................................................... 33
منابع مشابه
Genetic monogamy despite variable ecological conditions and social environment in the cooperatively breeding apostlebird
Mating strategies may be context-dependent and may vary across ecological and social contexts, demonstrating the role of these factors in driving the variation in genetic polyandry within and among species. Here, we took a longitudinal approach across 5 years (2006-2010), to study the apostlebird (Struthidea cinerea), an Australian cooperatively breeding bird, whose reproduction is affected by ...
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متن کاملInterspecic reciprocity explains mobbing behaviour of the breeding chafnches, Fringilla coelebs
When prey animals discover a predator close by, they mob it while uttering characteristic sounds that attract other prey individuals to the vicinity. Mobbing causes a predator to vacate its immediate foraging area, which gives an opportunity for prey individuals to continue their interrupted daily activity. Besides the increased bene ts, mobbing behaviour also has its costs owing to injuries o...
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