Avian Frugivory in a Fruiting Mulberry Tree (Morus rubra) in Arkansas

J. L. Jackson, R. Kannan
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引用次数: 3

Abstract

A fruiting Mulberry tree (Morus rubra) was observed for 67 hours in the spring of 2016 and 2017 in Fort Smith, Arkansas. A total of 172 five-minute scans were performed, during which the following parameters were recorded: species visited, number of individuals of each species, time of visitations, and foraging tier. Between each scan, the foraging rate (number of fruits consumed/min) and interand intraspecific aggressive interactions were recorded. A total of 3465 observations of individual birds from 32 species was recorded. Species diversity index was higher in the upper half of the tree. The mean foraging rates for the 6 most commonly observed species ranged from 1.2-2.3 fruits/min. A total of 346 aggressive interactions was observed of which 68% were intraspecific.
阿肯色一种正在结果的桑树(Morus rubra)的鸟类果实
2016年春季和2017年春季,在阿肯色州史密斯堡观察到一棵结果良好的桑树(红色桑椹)长达67个小时。共进行了172次5分钟的扫描,期间记录了以下参数:访问的物种、每个物种的个体数量、访问时间和觅食等级。在每次扫描之间,记录觅食率(每分钟消耗的水果数量)和种间和种内的攻击性相互作用。共记录了来自32个物种的3465个鸟类个体的观测结果。物种多样性指数在树的上半部分较高。6种最常见物种的平均觅食率在1.2-2.3个果实/分钟之间。共观察到346种攻击性相互作用,其中68%为种内相互作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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