Is There a Latitudinal Gradient in the Importance of Biotic Interactions
Is There a Latitudinal Gradient in the Importance of Biotic Interactions
复制标题
DOI：
10.1146/annurev.ecolsys.39.110707.173430
复制
发表时间：
2009-02
期刊：
影响因子：
--
通讯作者：
D. Schemske;G. Mittelbach;H. Cornell;James M Sobel;K. Roy
中科院分区：
文献类型：
--
作者：
D. Schemske;G. Mittelbach;H. Cornell;James M Sobel;K. Roy
生物相互作用被认为在物种多样性的起源和维持中发挥作用，多种假设将纬度多样性梯度与生物相互作用重要性的假定梯度联系起来。在这里，我们解决生物相互作用是否在低纬度地区更重要，从广泛的相互作用中找到支持这一假设的证据。一些最好的例子是热带地区的高等食草动物和昆虫捕食，以及主要的热带互惠关系，如清洁共生和蚂蚁-植物相互作用。对于包括热带地区的研究，生物相互作用在高纬度地区从未如此重要。虽然我们的研究结果支持这一假设，生物相互作用在热带地区更重要，还需要进一步的研究，包括纬度的比较参与生物相互作用的基因的分子进化速率，相互作用强度的梯度估计，和系统发育比较的性状，医疗…
Biotic interactions are believed to play a role in the origin and maintenance of species diversity, and multiple hypotheses link the latitudinal diversity gradient to a presumed gradient in the importance of biotic interactions. Here we address whether biotic interactions are more important at low latitudes, finding support for this hypothesis from a wide range of interactions. Some of the best-supported examples are higher herbivory and insect predation in the tropics, and predominantly tropical mutualisms such as cleaning symbioses and ant-plant interactions. For studies that included tropical regions, biotic interactions were never more important at high latitudes. Although our results support the hypothesis that biotic interactions are more important in the tropics, additional research is needed, including latitudinal comparisons of rates of molecular evolution for genes involved in biotic interactions, estimates of gradients in interaction strength, and phylogenetic comparisons of the traits that med...