Direct and indirect effects of plant and frugivore diversity on structural and functional components of fruit removal by birds
Direct and indirect effects of plant and frugivore diversity on structural and functional components of fruit removal by birds
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植物和食果动物多样性对鸟类摘果结构和功能成分的直接和间接影响
DOI：
10.1007/s00442-018-4324-y
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发表时间：
2019
期刊：
影响因子：
2.7
通讯作者：
E. L. Neuschulz
中科院分区：
文献类型：
--
作者：
Quitián;V. Santillán;C. I. Espinosa;J. Homeier;K. Böhning-Gaese;M. Schleuning ;E. L. Neuschulz
种子传播是一种重要的生态系统功能，但植物和鸟类群落的结构和功能多样性如何与种子传播功能相关联仍存在争议。我们使用结构方程模型来测试结构（即，丰度，物种丰富度）和功能多样性（即，果类植物和食果鸟类的功能分散和功能性状的群落加权平均值）直接和间接影响果实去除的各自成分。我们记录了植物和鸟类的多样性点计数，并观察植物-食果动物在厄瓜多尔的热带山地森林的相互作用。我们还记录了植物和鸟类的形态特征，以计算功能多样性的措施。我们发现，水果的丰富度有积极的直接影响鸟类的丰富度，直接和间接介导的丰富的删除水果。植物和鸟类物种的丰富度只直接关系到丰富的被删除的水果。植物群落的功能分散与鸟类群落和被移除的果实的功能分散呈正相关。一致，我们发现植物和鸟类特征的社区加权平均值之间的正相关性和植物特征的社区加权平均值之间的正相关性和植物与去除水果。与此相反，社区加权平均值的鸟类群落是无关的，删除的水果。总的来说，我们的研究结果表明，植物丰度直接和间接影响水果的去除，可能是因为鸟类水果跟踪。然而，我们没有发现之间的联系很强的功能多样性的食果动物社区和删除的水果，这表明其他因素，除了植物-动物性状匹配可能是重要的功能多样性删除的水果。我们的研究结果强调了食果动物丰度对维持热带森林中动物种子传播的重要性。
Seed dispersal is an important ecosystem function, but it is contentious how structural and functional diversity of plant and bird communities are associated with seed-dispersal functions. We used structural equation models to test how structural (i.e., abundance, species richness) and functional diversity (i.e., functional dispersion and community-weighted means of functional traits) of fruiting plants and frugivorous birds directly and indirectly influence the respective components of fruit removal. We recorded plant and bird diversity in point counts and observed plant–frugivore interactions in a tropical mountain forest in Ecuador. We also recorded plant and bird morphological traits to calculate measures of functional diversity. We found that fruit abundance had a positive direct effect on bird abundance, which directly and indirectly mediated the abundance of removed fruits. Plant and bird species richness were only directly related to the richness of the removed fruits. Functional dispersion of the plant community was positively associated to that of the bird community and to that of the removed fruits. Consistently, we found positive associations between community-weighted means of plant and bird traits and between community-weighted means of plant traits and that of plants with removed fruits. In contrast, community-weighted means of the bird community were unrelated to that of the removed fruits. Overall, our results suggest that plant abundance directly and indirectly influences fruit removal, likely because of avian fruit tracking. However, we did not find strong links between the functional diversity of the frugivore community and removed fruits, suggesting that other factors in addition to plant–animal trait matching might be important for the functional diversity of removed fruits. Our findings highlight the importance of frugivore abundance for maintaining seed dispersal by animals in tropical forests.
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影响因子：
3.7
作者：
Santillán V;Quitián M;Tinoco BA;Zárate E;Schleuning M;Böhning-Gaese K;Neuschulz EL
通讯作者：
Neuschulz EL
热带森林中动物采摘果实与幼苗补充之间的正相关关系
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
Marcia C. Muñoz;H. M. Schaefer;K. Böhning‐Gaese;M. Schleuning
通讯作者：
M. Schleuning
影响因子：
5.9
作者：
Bender, Irene M. A.;Kissling, W. Daniel;Schleuning, Matthias
通讯作者：
Schleuning, Matthias
热带果食动物会争夺食物吗
影响因子：
2.6
作者：
T. Fleming
通讯作者：
T. Fleming
影响因子：
5.9
作者：
D. Mccollin;Linda Moore;T. Sparks
通讯作者：
D. Mccollin;Linda Moore;T. Sparks