当前位置：
X-MOL 学术
›
Ecol. Evol.
›
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.)
Environmental conditions but not nest composition affect reproductive success in an urban bird
Ecology and Evolution ( IF 2.3 ) Pub Date : 2021-03-12 , DOI: 10.1002/ece3.7234 Pablo Capilla-Lasheras 1, 2 , Blanca Bondía 2 , José I Aguirre 2
Ecology and Evolution ( IF 2.3 ) Pub Date : 2021-03-12 , DOI: 10.1002/ece3.7234 Pablo Capilla-Lasheras 1, 2 , Blanca Bondía 2 , José I Aguirre 2
Affiliation
|
Adjusting the composition of their nests, breeding birds can influence the environmental conditions that eggs and offspring experience. Birds often use feathers to build nests, presumably due to their insulating properties. The amount of feathers in nests is often associated with increased nestling survival and body condition. However, it is unclear whether these putative beneficial effects of adding feathers to nests are relevant in a wide range of environmental conditions. Here, we combine data on weather conditions and feathers in nests (i.e., nest composition) to investigate their relative contribution to reproductive success in the Eurasian tree sparrow (Passer montanus). Specifically, we investigate whether the effect of weather conditions on breeding success is modulated by the amount of feathers added to the nest. We found a strong negative effect of rainfall on the number of nestlings that successfully fledged per breeding attempt, but this negative effect was not mitigated by the amount of feathers in nests. We also found that the amount of feathers in nests varied along the breeding season, with nests containing more feathers early in the breeding season, when temperatures were lower. Despite considerable variation in nest composition, our results do not suggest an important role of feathers in nests protecting eggs or nestling tree sparrows against fluctuations in environmental conditions.
中文翻译：
环境条件而非巢穴组成会影响城市鸟类的繁殖成功率
调整巢穴的组成、繁殖的鸟类可以影响蛋和后代所经历的环境条件。鸟类经常使用羽毛筑巢，大概是因为它们的隔热性能。巢中羽毛的数量通常与雏鸟的存活率和身体状况有关。然而，目前尚不清楚在巢中添加羽毛的这些假定的有益效果是否与广泛的环境条件相关。在这里，我们结合天气条件和巢中羽毛（即巢组成）的数据来研究它们对欧亚树麻雀（ Passer montanus ）繁殖成功的相对贡献。具体来说，我们调查了天气条件对繁殖成功的影响是否受到添加到巢中的羽毛数量的调节。我们发现降雨对每次繁殖尝试成功长出羽毛的雏鸟数量产生了强烈的负面影响，但这种负面影响并没有因为巢中羽毛的数量而减轻。我们还发现，巢中羽毛的数量随着繁殖季节的变化而变化，在繁殖季节早期，温度较低，巢中的羽毛较多。尽管巢穴组成存在很大差异，但我们的研究结果并不表明羽毛在巢穴中保护卵或雏鸟麻雀免受环境条件波动的重要作用。
更新日期：2021-04-04
中文翻译：
环境条件而非巢穴组成会影响城市鸟类的繁殖成功率
调整巢穴的组成、繁殖的鸟类可以影响蛋和后代所经历的环境条件。鸟类经常使用羽毛筑巢，大概是因为它们的隔热性能。巢中羽毛的数量通常与雏鸟的存活率和身体状况有关。然而，目前尚不清楚在巢中添加羽毛的这些假定的有益效果是否与广泛的环境条件相关。在这里，我们结合天气条件和巢中羽毛（即巢组成）的数据来研究它们对欧亚树麻雀（ Passer montanus ）繁殖成功的相对贡献。具体来说，我们调查了天气条件对繁殖成功的影响是否受到添加到巢中的羽毛数量的调节。我们发现降雨对每次繁殖尝试成功长出羽毛的雏鸟数量产生了强烈的负面影响，但这种负面影响并没有因为巢中羽毛的数量而减轻。我们还发现，巢中羽毛的数量随着繁殖季节的变化而变化，在繁殖季节早期，温度较低，巢中的羽毛较多。尽管巢穴组成存在很大差异，但我们的研究结果并不表明羽毛在巢穴中保护卵或雏鸟麻雀免受环境条件波动的重要作用。
京公网安备 11010802027423号