ANT BODY SIZE PREDICTS DISPERSAL DISTANCE OF ANT‐ADAPTED SEEDS: IMPLICATIONS OF SMALL‐ANT INVASIONS
ANT BODY SIZE PREDICTS DISPERSAL DISTANCE OF ANT‐ADAPTED SEEDS: IMPLICATIONS OF SMALL‐ANT INVASIONS
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蚂蚁体型预测适应蚂蚁的种子的传播距离：小蚂蚁入侵的影响
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
J. N. Holland
中科院分区：
文献类型：
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作者：
J. Ness;J. Bronstein;A. Andersen;J. N. Holland
随着群落物种组成的变化，群落内提供的服务也会发生变化。例如，在入侵蚂蚁占主导地位的栖息地，蚁种传播的相互关系可能会被破坏。我们认为这种破坏与蚂蚁平均体型的变化有关，因为入侵蚂蚁比大多数本地种子传播蚂蚁小。研究结果表明，蚁体体型越大，蚁体传播种子的平均距离和最大距离越长，且呈加速幂函数关系。这种模式在三个蚂蚁亚科（包括大多数种子分散蚂蚁和大多数入侵蚂蚁）中是一致的，在蚂蚁物种和群落中是普遍的，并且与一水聚体质量无关。结果表明，在红火蚁入侵地，采种蚁的平均体型和种子传播距离均有所减小。此外，我们证明了平均值是…
The services provided within a community can change as the species composition of that community changes. For example, ant–seed dispersal mutualisms can be disrupted in habitats dominated by invasive ants. We propose that this disruption is related to changes in mean ant body size, given that invasive ants are smaller than most native seed-dispersing ants. We demonstrate that the mean and maximum distances that ants transport seeds adapted for ant dispersal increase with worker body size, and that this relationship is an accelerating power function. This pattern is consistent among three ant subfamilies that include most seed-dispersing ants as well as most invasive ant species, is generalizable across ant species and communities, and is independent of diaspore mass. Using a case study, we demonstrate that both the mean body size of seed-collecting ants and seed dispersal distances are decreased in sites invaded by Solenopsis invicta, the imported red fire ant. Furthermore, we demonstrate that the mean si...