Human-induced loss of functional and phylogenetic diversity is mediated by concomitant deterministic processes in subtropical aquatic insect communities

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http://urn.fi/URN:NBN:fi-fe2022050332325 http://hdl.handle.net/10138/343240

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Yihao Ge, Zhenyuan Liu, Jorge García-Girón, Xiao Chen, Yunzhi Yan, Zhengfei Li, Zhicai Xie. Human-induced loss of functional and phylogenetic diversity is mediated by concomitant deterministic processes in subtropical aquatic insect communities. Ecological Indicators 136 (2022), 108600, ISSN 1470-160X. https://doi.org/10.1016/j.ecolind.2022.108600

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Title: Human-induced loss of functional and phylogenetic diversity is mediated by concomitant deterministic processes in subtropical aquatic insect communities
Author: Ge, Yihao; Liu, Zhenyuan; García-Girón, Jorge; Chen, Xiao; Yan, Yunzhi; Li, Zhengfei; Xie, Zhicai
Contributor organization: Suomen ympäristökeskus
The Finnish Environment Institute
Publisher: Elsevier BV
Date: 2022
Language: en
Belongs to series: Ecological Indicators
ISSN: 1470-160X
DOI: https://doi.org/10.1016/j.ecolind.2022.108600
URI: http://urn.fi/URN:NBN:fi-fe2022050332325
http://hdl.handle.net/10138/343240
Abstract: Under a global change scenario, human-induced impacts alter multiple facets of river biodiversity (i.e., taxonomic, functional and phylogenetic). Hence, focusing on changes in community assembly and different diversity dimensions along anthropogenic impact gradients is of paramount importance for ecological research. Here, we classified stream sites into near-pristine (NP), moderately impacted (MI) and highly impacted (HI) categories based on a comprehensive anthropogenic impact score for the Hanjiang River Basin (China), and tested for differences in patterns of functional (FD) and phylogenetic diversity (PD). Our study suggests that NP sites showed higher FD and PD than impacted streams (MI and HI), with their communities being phylogenetically overdispersed and mostly shaped by random processes. Anthropogenically impacted sites mostly harbored closely related and functionally similar species, although the degree of clustering varied between NP, MI and HI streams, thereby confirming predictions that human activities contribute to the loss of evolutionary history and functional space in running waters. Importantly, we identified the influence of underlying deterministic mechanisms on the homogenization of both functional and phylogenetic facets of diversity. Similarly, NP sites exhibited the greatest proportion of evolutionarily distinct lineages, suggesting that anthropogenic impacts also threaten phylogenetically unique clades. Overall, this study contributed to a better understanding of multiple diversity patterns in aquatic insect communities by generating new empirical evidence of human-induced degradation of subtropical stream ecosystems in China.
Description: Highlights • Human activities contribute to the loss of evolutionary history and functional space. • Anthropogenic impacts threaten phylogenetically unique clades. • Different dimension biodiversity metrics are important to preserving evolutionary history, adaptive potential and ecological function.
Subject: ekologia
populaatioekologia
kaupungistuminen
vesiekosysteemit
eliöyhteisöt
koostumus
rakenne
selkärangattomat
hyönteiset
diversiteetti
toiminta
fylogenia
subtrooppinen vyöhyke
Subject (yso): community assembly
aquatic insects
urbanization
evolutionary history
invertebrate
Rights: CC BY-NC-ND 4.0


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