鸟类与新热带地区的槲寄生：对幼苗补充的影响。
Birds and neotropical mistletoes: effects on seedling recruitment.
作者信息
Davidar Priya
机构信息
Department of Zoology, University of Iowa, 52242, Iowa City, IA, USA.
Smithsonian Tropical Research Institute, Bos 2072, Balboa, Panama.
出版信息
Oecologia. 1983 Nov;60(2):271-273. doi: 10.1007/BF00379532.
PMID:28310497
Abstract
Two groups of neotropical mistletoes differ in fruit structure and consequently in the manner their seeds are deposited by avian frugivores. Birds defecate seeds of one group in clumps, but deposit seeds of the other group singly by regurgitation. A significant proportion of adult plants of both species were found growing alone, indicating a higher mortality with seed clumping.
摘要
两组新热带槲寄生在果实结构上存在差异，因此在鸟类食果动物传播其种子的方式上也有所不同。鸟类会成簇地排出一组槲寄生的种子，但通过反刍单独排出另一组槲寄生的种子。研究发现，这两个物种的成年植株中有很大一部分是单独生长的，这表明种子成簇会导致更高的死亡率。
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