气候变化领域集成服务门户(CCPortal): Dual effects of drying and urban pollution on leaf litter decomposition and shredder consumption in permanent and intermittent streams

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DOI	10.1007/s10750-024-05524-3
	Dual effects of drying and urban pollution on leaf litter decomposition and shredder consumption in permanent and intermittent streams
	Martinez-Sanz, Itxaso; Munoz, Isabel; Viza, Aida; Oliva, Francesc; Menendez, Margarita
发表日期	2024
ISSN	0018-8158
EISSN	1573-5117
英文摘要	In the present study we investigated the combined effect of flow intermittence and wastewater treatment plant (WWTP) effluent on leaf litter decomposition in two Mediterranean streams with permanent and intermittent flow regimes. The litter decomposition experiment was performed using black poplar litter bags where we measured litter mass loss, fungal biomass, aquatic hyphomycete sporulation and species richness and C:N ratio. Afterwards, the remaining litter material from the different treatments was offered to the shredder Potamophylax latipennis in a microcosm laboratory experiment, and its growth and consumption rates were studied. We hypothesised that drying would decrease leaf litter decomposition in the permanent stream more than in the intermittent stream and that WWTP effluent would compensate for drying effects when both stressors interacted. The results indicated that drying has the greatest impact on the permanent stream, decreasing decomposition, aquatic hyphomycete species richness, and leaf litter quality. In the intermittent stream, WWTP effluent decreases aquatic hyphomycete species richness, but drying increases it, showing an opposing effect and a synergistic interaction. In the permanent stream drying provoked an increase in the shredder consumption rate. Thus, the expected more frequent intermittence in rivers under climate change may threaten the processing of organic matter.
英文关键词	Invertebrate; Food quality; Mass loss; Multiple stress; WWTP effluent; Microbial decomposers
语种	英语
WOS研究方向	Marine & Freshwater Biology
WOS类目	Marine & Freshwater Biology
WOS记录号	WOS:001200377100001
来源期刊	HYDROBIOLOGIA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295935
作者单位	University of Barcelona; University of Barcelona
推荐引用方式 GB/T 7714	Martinez-Sanz, Itxaso,Munoz, Isabel,Viza, Aida,et al. Dual effects of drying and urban pollution on leaf litter decomposition and shredder consumption in permanent and intermittent streams[J],2024.
APA	Martinez-Sanz, Itxaso,Munoz, Isabel,Viza, Aida,Oliva, Francesc,&Menendez, Margarita.(2024).Dual effects of drying and urban pollution on leaf litter decomposition and shredder consumption in permanent and intermittent streams.HYDROBIOLOGIA.
MLA	Martinez-Sanz, Itxaso,et al."Dual effects of drying and urban pollution on leaf litter decomposition and shredder consumption in permanent and intermittent streams".HYDROBIOLOGIA (2024).