Journal of Ornithology, Год журнала: 2024, Номер 166(1), С. 247 - 261
Опубликована: Сен. 21, 2024
Язык: Английский
Royal Society Open Science, Год журнала: 2024, Номер 11(4)
Опубликована: Апрель 1, 2024
Individual differences in aggressiveness, if consistent across time and contexts, may contribute to the long-term maintenance of social hierarchies complex animal societies. Although agonistic interactions have previously been used calculate individuals' positions within a dominance hierarchy, date repeatability behaviour has not tested when calculating rank. Here, we examined consistency relevance aggressiveness as personality trait free-flying population greylag geese (
Язык: Английский
Процитировано
3
Royal Society Open Science, Год журнала: 2025, Номер 12(4)
Опубликована: Апрель 1, 2025
In birds, singing behaviours play a critical role in mating and territory defence. Although birdsong can signal individual quality personality, very few studies have explored the relationship between personality song characteristics, none has investigated this females. Here, we examined relationships complexity two ecologically relevant traits (exploration aggressiveness) wild superb fairy-wrens ( Malurus cyaneus ), species which both sexes learn to produce complex songs. First, assessed males females (including juveniles) by quantifying their exploration behaviour (novel environment test) aggressiveness (mirror stimulation during short-term captivity. After birds were released, recorded songs over several months assess variation (i.e. element types per syllables song) relation personality. Regardless of sex or life stage, individuals that more exploratory had song. Additionally, aggressive produced with fewer syllables, fledglings, but not adults, Our study supports idea male female advertise when singing, may be important for mate choice.
Язык: Английский
Процитировано
0
Behavioral Ecology and Sociobiology, Год журнала: 2024, Номер 78(2)
Опубликована: Фев. 1, 2024
Abstract Darwin’s finch species in the Galápagos Islands are famously distinguished by their morphology but less attention has been given to behavioral differences between species. In this study, we compared behavior four on Floreana Island: small ground ( Geospiza fuliginosa ), medium G. fortis tree Camarhynchus parvulus and C. pauper ). After capturing birds using mist-nets, measured three traits: (1) boldness during human handling, (2) exploration a novel environment, (3) aggressiveness towards mirror image. First, found that finches were bolder more exploratory than finches, consistent with distinct ecological niches Island theoretical prediction diet generalists should be wary of novelty. Second, tested validity these variables at individual level relating them territory defense breeding success. We males environment also reacted aggressively simulated intruder showed lower offspring hatching success season. Hence, our findings support previous work showing suggest pathways which among individuals might influence fitness. Significance statement Closely-related overlap geographical range may differ and/or behavior, allowing occupy different niches. explored Archipelago. clear interspecies struggling often handling (boldness) visiting sectors (exploration) finches. released, continued observe subset male wild. An individual’s significantly predicted both its aggressive response (simulated song playback) This suggests can potentially used as proxy for territorial wild predict fitness outcomes.
Язык: Английский
Процитировано
2
New Zealand Journal of Zoology, Год журнала: 2024, Номер 51(2), С. 301 - 316
Опубликована: Янв. 31, 2024
Experimental approaches to measure territory defence can be used interpret the relative magnitude of intraspecific aggression in different ecological contexts. The aim this study is examine response Fijian forest bird species conspecific intruders using playback previously recorded songs along an elevational gradient. We address two questions: Do foraging guilds Fiji's birds show patterns territorial behaviour towards intruders? Secondly, do stronger at higher elevations? explore these questions across (insectivore and omnivore) on Viti Levu Island, Fiji. All four focal had a highest elevation, endemic insectivore strongest response. Perhaps high elevation insects are less abundant hence increased aggressiveness favoured defend territory, and/or perhaps general more aggressive colonise areas, both ideas that require further testing. This provides first insights into conspecifics explored relation avian also context human activity, disturbance threats persistence gradients.
Язык: Английский
Процитировано
1
Journal of Ornithology, Год журнала: 2024, Номер 166(1), С. 247 - 261
Опубликована: Сен. 21, 2024
Язык: Английский
Процитировано
0