气候变化领域集成服务门户(CCPortal): Using functional traits of chironomids to determine habitat changes in subtropical wetlands

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DOI	10.1016/j.ecolind.2024.111656
	Using functional traits of chironomids to determine habitat changes in subtropical wetlands
	Cao, Yanmin; Langdon, Peter G.; Shen, Shengman; Li, Hui; Pan, Deng
发表日期	2024
ISSN	1470-160X
EISSN	1872-7034
起始页码	159
卷号	159
英文摘要	Ecosystem functions in wetlands are increasingly degrading under the multiple stresses of climate change and human disturbances. Traditional wetland bioassessment is usually based on taxonomic approaches but this approach has limitations. To explore the effectiveness of functional traits in response to environmental changes, we compared the traditional taxonomic composition of chironomid communities with a trait-based approach in a subtropical subalpine wetland (Central China) spanning a wide habitat gradient from dry peatland to inundated peatland pools. The results revealed that 57 % of functional trait groups but only 38 % of taxonomic groups examined were significantly different between diverse peatland habitats. Sphagnum moss hummocks were generally inhabited by larvae of collector-gatherers, small body-sized individuals and sprawlers, while peatland pools supported a high abundance of shredders, large body-sized larvae and burrowers. Ecotones had more niche opportunities and hence possessed high taxonomic and functional diversity. Ordination analyses indicated that three similar environmental variables (loss-on-ignition (LOI), depth to water table (DWT) and K+) were the most powerful explanations of the chironomid variability in both taxonomic and functional trait compositions. LOI and DWT interacted strongly and were the dominant controls on both taxonomic and trait communities. Our research demonstrated that functional trait groups of chironomids are more robust and sensitive than taxonomybased approaches to habitat changes, and therefore could be an alternative approach for the bioassessment of aquatic ecosystem functioning and palaeo-studies in wetlands.
英文关键词	Functional traits; Chironomidae; Peatlands; Water level fluctuations; Organic matter
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:001174353300001
来源期刊	ECOLOGICAL INDICATORS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297770
作者单位	South Central Minzu University; University of Southampton; China University of Geosciences
推荐引用方式 GB/T 7714	Cao, Yanmin,Langdon, Peter G.,Shen, Shengman,et al. Using functional traits of chironomids to determine habitat changes in subtropical wetlands[J],2024,159.
APA	Cao, Yanmin,Langdon, Peter G.,Shen, Shengman,Li, Hui,&Pan, Deng.(2024).Using functional traits of chironomids to determine habitat changes in subtropical wetlands.ECOLOGICAL INDICATORS,159.
MLA	Cao, Yanmin,et al."Using functional traits of chironomids to determine habitat changes in subtropical wetlands".ECOLOGICAL INDICATORS 159(2024).