当前位置:
X-MOL 学术
›
Ecol. Lett.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Ant impacts on global patterns of bird elevational diversity
Ecology Letters ( IF 7.6 ) Pub Date : 2024-08-22 , DOI: 10.1111/ele.14497
Umesh Srinivasan 1 , Kartik Shanker 1, 2 , Trevor D Price 3
Ecology Letters ( IF 7.6 ) Pub Date : 2024-08-22 , DOI: 10.1111/ele.14497
Umesh Srinivasan 1 , Kartik Shanker 1, 2 , Trevor D Price 3
Affiliation
Using data on bird species elevational distributions from the world's mountain ranges, bird diets, and the distribution of the ant genus Oecophylla , we report that global patterns in bird elevational diversity show signals of competition with ants. Oecophylla is an abundant and effective predator of invertebrates, preying on the same species that invertivorous birds feed on. In mountain ranges with Oecophylla present in the foothills, the maximum species richness of invertivorous birds (but not other trophic guilds) occurs, on average, at 960 m, ca. 450 m higher than in mountain ranges without Oecophylla, resulting in a mid‐elevation peak in bird species richness. Where Oecophylla is absent, bird species richness for all guilds generally show monotonic declines with increasing elevation. We argue that Oecophylla reduces prey density for invertivorous birds and that low prey abundance reduces invertivorous bird density, which in turn is correlated with lower bird species richness. These findngs suggest that competition between distantly related taxa can set range limits, leading to emergent diversity patterns over large scales.
中文翻译:
蚂蚁对全球鸟类海拔多样性格局的影响
使用世界山脉鸟类物种海拔分布、鸟类饮食和蚂蚁属分布的数据生态植物,我们报告说,鸟类海拔多样性的全球模式显示出与蚂蚁竞争的信号。生态植物是一种数量丰富且有效的无脊椎动物捕食者,捕食与无食性鸟类相同的物种。在山脉中生态植物在山麓地区,无体食性鸟类(但不是其他营养性鸟类)的物种丰富度最高,平均出现在海拔 960 m(约 100 米)处。比没有安装的山脉高 450 m生态叶属,导致鸟类物种丰富度达到中海拔峰值。在哪里生态植物如果不存在,所有行会的鸟类物种丰富度通常随着海拔的增加而单调下降。我们认为生态植物降低了无性食性鸟类的猎物密度,而低猎物丰度降低了无性食性鸟类的密度,这反过来又与较低的鸟类物种丰富度相关。这些发现表明,关系较远的类群之间的竞争可以设定范围限制,从而导致大规模的多样性模式的出现。
更新日期:2024-08-22
中文翻译:
蚂蚁对全球鸟类海拔多样性格局的影响
使用世界山脉鸟类物种海拔分布、鸟类饮食和蚂蚁属分布的数据生态植物,我们报告说,鸟类海拔多样性的全球模式显示出与蚂蚁竞争的信号。生态植物是一种数量丰富且有效的无脊椎动物捕食者,捕食与无食性鸟类相同的物种。在山脉中生态植物在山麓地区,无体食性鸟类(但不是其他营养性鸟类)的物种丰富度最高,平均出现在海拔 960 m(约 100 米)处。比没有安装的山脉高 450 m生态叶属,导致鸟类物种丰富度达到中海拔峰值。在哪里生态植物如果不存在,所有行会的鸟类物种丰富度通常随着海拔的增加而单调下降。我们认为生态植物降低了无性食性鸟类的猎物密度,而低猎物丰度降低了无性食性鸟类的密度,这反过来又与较低的鸟类物种丰富度相关。这些发现表明,关系较远的类群之间的竞争可以设定范围限制,从而导致大规模的多样性模式的出现。