The role of environmental conditions, climatic factors and spatial processes in driving multiple facets of stream macroinvertebrate beta diversity in a climatically heterogeneous mountain region

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Xiaoming Jiang, Baozhu Pan, Wanxiang Jiang, Yiming Hou, Haiqiang Yang, Penghui Zhu, Jani Heino. The role of environmental conditions, climatic factors and spatial processes in driving multiple facets of stream macroinvertebrate beta diversity in a climatically heterogeneous mountain region. Ecological Indicators 124 (2021), 107407, ISSN 1470-160X. https://doi.org/10.1016/j.ecolind.2021.107407

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Title: The role of environmental conditions, climatic factors and spatial processes in driving multiple facets of stream macroinvertebrate beta diversity in a climatically heterogeneous mountain region
Author: Jiang, Xiaoming; Pan, Baozhu; Jiang, Wanxiang; Hou, Yiming; Yang, Haiqiang; Zhu, Penghui; Heino, Jani
Publisher: Elsevier
Date: 2021
Language: en
Belongs to series: Ecological Indicators 124 (2021), 107407
ISSN: 1470-160X
DOI: https://doi.org/10.1016/j.ecolind.2021.107407
URI: http://hdl.handle.net/10138/336876
Abstract: There is a growing recognition that examining patterns of ecological communities and their underlying determinants is not only feasible based on taxonomic data, but also functional and phylogenetic approaches. This is because these additional facets can enhance the understanding of the relative contribution of multiple processes in shaping biodiversity. However, few studies have focused on multifaceted beta diversities in lotic macroinvertebrates, especially when considering driving factors operating at multiple spatial scales. Here, we examined the spatial patterns of multi-faceted (i.e., taxonomic, functional and phylogenetic) beta diversity and their components (i.e., turnover and nestedness) of macroinvertebrates in 50 sites in 10 streams situated in the north and south slope of the Qinling Mountains, the geographical dividing line of Northern and Southern China. We found that the streams draining the north slope showed significantly lower values of beta diversity based on all three facets than the streams draining the south slope. Such north-to-south increases of beta diversity were caused by the distinct climatic and local environmental conditions between the sides of the mountain range. Moreover, spatial variables generally played the most important role in structuring all facets and components of beta diversity, followed by local environmental and climatic variables, whereas catchment variables were less important. Despite the similar results of relative contribution of explanatory variables on each beta diversity facet, the details of community-environment relationships (e.g., important explanatory variables and explanatory power) were distinct among different diversity facets and their components. In conclusion, measuring functional and phylogenetic beta diversity provides complementary information to traditional taxonomic approach. Therefore, an integrative approach embracing multiple facets of diversity can better reveal the mechanisms shaping biodiversity, which is essential in assessing and valuing aquatic ecosystems for biodiversity management and conservation.
Description: Highlights • We tested patterns of multi-faceted beta diversity across mountain streams. • All three facets of beta diversities increase from the north slope to south slope. • Spatial variables were most important in structuring three facets of beta diversity. • Functional and phylogenetic beta diversity complement to taxonomic beta diversity. • Combining multi-faceted biodiversity is essential for management and conservation.
Subject: turnover
nestedness
climatic forcing
mountainous regions
multi-scale factors
functional traits
biodiversity
natural diversity
biotic communities
systematics
phylogenetics
climate
ecosystems (ecology)
mountains
slopes
phylogeny
aquatic ecosystems
hydrology
China
Qinling Mountains
Subject (ysa): alueelliset vaikutukset
beta-diversiteetti
diversiteetti
ekologia
hydrologia
ilmastovaikutukset
joet
virtavedet
vuoristot
ympäristötekijät
Kiina
biodiversiteetti
luonnon monimuotoisuus
eliöyhteisöt
systematiikka (biologia)
fylogenetiikka
ilmasto
ekosysteemit (ekologia)
rinteet
vuoret
fylogenia
vesiekosysteemit
Qinling
Rights: CC BY-NC-ND 4.0


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