当前位置: X-MOL 学术Behav. Ecol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Breeding site fidelity is lower in polygamous shorebirds and male-biased in monogamous species.
Behavioral Ecology ( IF 2.4 ) Pub Date : 2022-04-01 , DOI: 10.1093/beheco/arac014
Eunbi Kwon 1 , Mihai Valcu 1 , Margherita Cragnolini 1 , Martin Bulla 1, 2 , Bruce Lyon 3 , Bart Kempenaers 1
Affiliation  

Sex-bias in breeding dispersal is considered the norm in many taxa, and the magnitude and direction of such sex-bias is expected to correlate with the social mating system. We used local return rates in shorebirds as an index of breeding site fidelity, and hence as an estimate of the propensity for breeding dispersal, and tested whether variation in site fidelity and in sex-bias in site fidelity relates to the mating system. Among 111 populations of 49 species, annual return rates to a breeding site varied between 0% and 100%. After controlling for body size (linked to survival) and other confounding factors, monogamous species showed higher breeding site fidelity compared with polyandrous and polygynous species. Overall, there was a strong male bias in return rates, but the sex-bias in return rate was independent of the mating system and did not covary with the extent of sexual size dimorphism. Our results bolster earlier findings that the sex-biased dispersal is weakly linked to the mating system in birds. Instead, our results show that return rates are strongly correlated with the mating system in shorebirds regardless of sex. This suggests that breeding site fidelity may be linked to mate fidelity, which is only important in the monogamous, biparentally incubating species, or that the same drivers influence both the mating system and site fidelity. The strong connection between site fidelity and the mating system suggests that variation in site fidelity may have played a role in the coevolution of the mating system, parental care, and migration strategies.

中文翻译:

一夫一妻制的鸻鹬的繁殖地点保真度较低,而一夫一妻制的物种则偏向雄性。

繁殖传播中的性别偏见被认为是许多分类群的常态,这种性别偏见的程度和方向预计与社会交配系统相关。我们使用鸻鹬的当地回归率作为繁殖地点保真度的指标,因此作为繁殖扩散倾向的估计,并测试地点保真度的变化和地点保真度的性别偏见是否与交配系统有关。在 49 个物种的 111 个种群中,繁殖地的年回归率在 0% 到 100% 之间变化。在控制了体型(与生存相关)和其他混杂因素后,一夫一妻制物种与一夫多妻制和一夫多妻制物种相比,表现出更高的繁殖地保真度。总体而言,回报率存在强烈的男性偏见,但回报率的性别偏见与交配系统无关,并且与性别大小二态性的程度无关。我们的结果支持了早期的发现,即性别偏见的传播与鸟类的交配系统有微弱的联系。相反,我们的结果表明,无论性别如何,回归率都与鸻鹬的交配系统密切相关。这表明繁殖地点的保真度可能与交配保真度有关,这仅对一夫一妻制、双亲孵化的物种很重要,或者相同的驱动因素同时影响交配系统和地点保真度。地点保真度和交配系统之间的紧密联系表明,地点保真度的变化可能在交配系统、父母照顾和迁移策略的共同进化中发挥了作用。我们的结果支持了早期的发现,即性别偏见的传播与鸟类的交配系统有微弱的联系。相反,我们的结果表明,无论性别如何,回归率都与鸻鹬的交配系统密切相关。这表明繁殖地点的保真度可能与交配保真度有关,这仅对一夫一妻制、双亲孵化的物种很重要,或者相同的驱动因素同时影响交配系统和地点保真度。地点保真度和交配系统之间的紧密联系表明,地点保真度的变化可能在交配系统、父母照顾和迁移策略的共同进化中发挥了作用。我们的结果支持了早期的发现,即性别偏见的传播与鸟类的交配系统有微弱的联系。相反,我们的结果表明,无论性别如何,回归率都与鸻鹬的交配系统密切相关。这表明繁殖地点的保真度可能与交配保真度有关,这仅对一夫一妻制、双亲孵化的物种很重要,或者相同的驱动因素同时影响交配系统和地点保真度。地点保真度和交配系统之间的紧密联系表明,地点保真度的变化可能在交配系统、父母照顾和迁移策略的共同进化中发挥了作用。我们的研究结果表明,无论性别,回归率都与鸻鹬的交配系统密切相关。这表明繁殖地点的保真度可能与交配保真度有关,这仅对一夫一妻制、双亲孵化的物种很重要,或者相同的驱动因素同时影响交配系统和地点保真度。地点保真度和交配系统之间的紧密联系表明,地点保真度的变化可能在交配系统、父母照顾和迁移策略的共同进化中发挥了作用。我们的研究结果表明,无论性别,回归率都与鸻鹬的交配系统密切相关。这表明繁殖地点的保真度可能与交配保真度有关,这仅对一夫一妻制、双亲孵化的物种很重要,或者相同的驱动因素同时影响交配系统和地点保真度。地点保真度和交配系统之间的紧密联系表明,地点保真度的变化可能在交配系统、父母照顾和迁移策略的共同进化中发挥了作用。
更新日期:2022-04-01
down
wechat
bug