择偶风险:喜马拉雅山脚下半城市气候中提高觅食率的驱动力

Garima Singh, Kalpana Chaudhary, Sachin Kumar, Gaurav Sharma
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引用次数: 0

摘要

觅食行为越来越被视为维持栖息地结构连通性不可或缺的组成部分。鸟类觅食行为的日常模式被认为是鸣禽在繁殖季节抵消饥饿、捕食风险和配偶选择的平衡点。本研究是对喜马拉雅山麓半城市气候下印度知更鸟(Copshychus fulicatus L.)种群觅食模式组合数据的首次调查。发现雄性印度知更鸟在繁殖季节的觅食率高于非繁殖季节,因为它们在繁殖季节需要更多的能量来唱歌吸引雌性,而雌性在这两个季节的觅食率几乎相同。雌雄知更鸟早晚的觅食率略有不同,傍晚的觅食率更高一些。这项研究对研究城市化进程对觅食的影响也有重要价值,因为这是鸟类学家近期研究亚种群、亚物种和物种保护的需要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Risk of mate selection: Force driving to higher foraging rate in semi urban climate in Himalayan foot hills
Foraging behavior is increasingly seen as an integral component in maintaining connectivity within habitat structure. Daily patterns in the foraging behavior of birds are assumed to balance the counteracting starvation, risks of predation and mate choice in breeding season in song-birds. Present study is the first investigation of the data on foraging patterns assemblage of population of Indian robin (Copshychus fulicatus L.), belongs to Semi-urban climate in Himalayan foothills. Foraging rate were found higher in male Indian robin in breeding season than non-breeding season because they need more energy to sing to attract female in breeding season, while female forage almost equal in both the season. Slight variation were found in foraging rate in morning and evening for both the sexes, evening have little more edges. This study also has significant value to study the effect of increasing urbanization on foraging, as need of recent research of ornithologist for sub- population, sub- species and species conservation.
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