| 第一作者： | Xie, Zhijing |
|---|---|
| 英文第一作者： | Xie, Zhijing |
| 联系作者： | Sun, Xin，Wu, Donghui |
| 英文联系作者： | Sun, Xin，Wu, Donghui |
| 发表年度： | 2022 |
| 卷： | 49 |
| 摘要： | Aim Both ecological and evolutionary processes shape biological communities along elevational gradients. Compared to above-ground taxa, elevational patterns and processes of below-ground animals are little studied. Here, we investigated how environmental gradients across elevation may affect species divergence in the past and act as filters of contemporary assembly of soil detritivores via traits. We asked: (1) Are environmental filtering processes due to elevation, vegetation or microhabitat-related factors driving isotomid springtail community assembly across elevation; (2) did species divergences occur after mountain uplift; and (3) are there environmental factors related to species divergences in the past. Location Changbai Mountain, north-east China. Taxon Isotomidae, Collembola. Methods We collected isotomid springtails from 800 to 2150 m above sea level and reconstructed the phylogeny using mitochondrial genome sequencing. We inspected the body length, number of ommatidia and pigmentation, and determined their evolutionary patterns. We then derived community parameters using trait-based and metacommunity phylogenetic approaches and used linear mixed-effects models to identify environmental variables that allow predicting community trait and phylogenetic parameters. Results Isotomid springtails differed more in traits when co-occurring in environments with lower soil nitrogen, typically at higher elevations. Most communities exhibited phylogenetic clustering, but this pattern was not related to elevation or any environmental variables. These isotomid species mainly diverged in the Mesozoic with some divergence events associated with soil N and pH, as well as other factors covarying with the contemporary elevational gradient studied. The current communities comprised old phylogenetic lineages possessing traits that have undergone evolutionary drift. Main conclusions While environmental gradients act as filters for below-ground detritivores, evolution of traits preconditions their assembly. Species divergence likely resulted from filtering processes of past environments resembling the present day. Below-ground diversity in Changbai Mountain is mainly based on the persistence of old phylogenetic lineages, while recent speciation is of little importance. |
| 刊物名称： | Journal of Biogeography |
| 参与作者： | Z. J. Xie, T. W. Chen, M. Potapov, F. Zhang, D. H. Wu, S. Scheu and X. Sun |
删除或更新信息，请邮件至freekaoyan#163.com(#换成@)
Ecological and evolutionary processes shape below-ground springtail communities along an elevational
本站小编 Free考研考试/2024-01-13
Ecological and evolutionary processes shape below-ground springtail communities along an elevational gradient
相关话题/
领限时大额优惠券,享本站正版考研考试资料!
优惠券领取后72小时内有效，10万种最新考研考试考证类电子打印资料任你选。涵盖全国500余所院校考研专业课、200多种职业资格考试、1100多种经典教材，产品类型包含电子书、题库、全套资料以及视频，无论您是考研复习、考证刷题，还是考前冲刺等，不同类型的产品可满足您学习上的不同需求。 ...考试优惠券 本站小编 Free壹佰分学习网 2022-09-19
