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Reliability of macaques as seed dispersers.
American Journal of Primatology ( IF 2.4 ) Pub Date : 2020-02-24 , DOI: 10.1002/ajp.23115
Asmita Sengupta 1, 2 , Eva Gazagne 3, 4 , Aurelie Albert-Daviaud 5 , Yamato Tsuji 6 , Sindhu Radhakrishna 2
Affiliation  

Seed dispersal is an ecological process crucial for forest regeneration and recruitment. To date, most studies on frugivore seed dispersal have used the seed dispersal effectiveness framework and have documented seed-handling mechanisms, dispersal distances and the effect of seed handling on germination. In contrast, there has been no exploration of "disperser reliability" which is essential to determine if a frugivore is an effective disperser only in particular regions/years/seasons or across a range of spatio-temporal scales. In this paper, we propose a practical framework to assess the spatial reliability of frugivores as seed dispersers. We suggest that a frugivore genus would be a reliable disperser of certain plant families/genera if: (a) fruits of these plant families/genera are represented in the diets of most of the species of that frugivore, (b) these are consumed by the frugivore genus across different kinds of habitats, and (c) these fruits feature among the yearly staples and preferred fruits in the diets of the frugivore genus. Using this framework, we reviewed frugivory by the genus Macaca across Asia to assess its spatial reliability as seed dispersers. We found that the macaques dispersed the seeds of 11 plant families and five plant genera including at least 82 species across habitats. Differences in fruit consumption/preference between different groups of macaques were driven by variation in plant community composition across habitats. We posit that it is essential to maintain viable populations of macaques across their range and keep human interventions at a minimum to ensure that they continue to reliably disperse the seeds of a broad range of plant species in the Anthropocene. We further suggest that this framework be used for assessing the spatial reliability of other taxonomic groups as seed dispersers.

中文翻译:

猕猴作为种子分散剂的可靠性。

种子扩散是生态系统过程,对于森林的再生和募集至关重要。迄今为止,大多数关于节食植物种子传播的研究都使用了种子传播有效性框架,并记录了种​​子处理机制,传播距离以及种子处理对发芽的影响。相反,没有探索“分散器可靠性”,这对于确定节食动物是否仅在特定地区/年/季节或跨时空范围内是有效的分散器至关重要。在本文中,我们提出了一个实用的框架来评估节食动物作为种子分散剂的空间可靠性。我们建议,在以下情况下,节食植物属将是某些植物科/属的可靠分散剂:(a)这些果蝇的大多数物种的饮食中都包含这些植物科/属的果实;(b)这些果蝇被不同生境中的果蝇属食用;(c)这些果实在每年节食类食物中的主食和首选水果。使用该框架,我们回顾了亚洲猕猴属的节食,以评估其作为种子分散剂的空间可靠性。我们发现猕猴散布了11个植物科和5个植物属的种子,其中包括至少82个物种。猕猴在不同群体之间的水果消费/偏好差异是由不同生境中植物群落组成的变化所决定的。我们认为至关重要的是,要保持猕猴在其整个种群范围内的存活数量,并使人类干预保持在最低限度,以确保它们能够继续可靠地在人类世中分散各种植物的种子。我们进一步建议,该框架可用于评估其他生物分类群作为种子分散剂的空间可靠性。
更新日期:2020-02-24
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