DOI: 10.1111/gcb.12151
论文题名: Elevated temperature prolongs long-term effects of a pesticide on Daphnia spp. due to altered competition in zooplankton communities
作者: Knillmann S. ; Stampfli N.C. ; Noskov Y.A. ; Beketov M.A. ; Liess M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 5 起始页码: 1598
结束页码: 1609
语种: 英语
英文关键词: Community context
; Esfenvalerate
; Interspecific competition
; Outdoor microcosm
; Recovery
Scopus关键词: fenvalerate
; insecticide
; nitrile
; pyrethroid
; climate change
; climate effect
; community dynamics
; competition (ecology)
; interspecific competition
; microcosm
; pesticide
; temperature effect
; zooplankton
; animal
; article
; climate change
; Daphnia
; drug effect
; heat
; mass fragmentography
; physiology
; pond
; solid phase extraction
; time
; water pollutant
; zooplankton
; Animals
; Climate Change
; Daphnia
; Gas Chromatography-Mass Spectrometry
; Hot Temperature
; Insecticides
; Nitriles
; Ponds
; Pyrethrins
; Solid Phase Extraction
; Time Factors
; Water Pollutants, Chemical
; Zooplankton
; Daphnia
英文摘要: Considerable research efforts have been made to predict the influences of climate change on species composition in biological communities. However, little is known about how changing environmental conditions and anthropogenic pollution can affect aquatic communities in combination. We investigated the influence of short warming periods on the response of a zooplankton community to the insecticide esfenvalerate at a range of environmentally realistic concentrations (0.03, 0.3 and 3 μg L-1) in 55 outdoor pond microcosms. Warming periods increased the cumulative water temperature, but did not exceed the maximum temperature measured under ambient conditions. Under warming conditions alone the abundance of some zooplankton taxa increased selectively compared to ambient conditions. This resulted in a shift in the community composition that had not recovered by the end of the experiment, 8 weeks after the last warming period. Regarding the pesticide exposure, short-term effects of esfenvalerate on the community structure and the sensitive taxa Daphnia spp. did not differ between the two temperature regimes. In contrast, long-term effects of esfenvalerate on Daphnia spp., a taxon that did not benefit from elevated temperatures, were observed twice as long under warming than under ambient conditions. This resulted in long-term effects on Daphnia spp. until 4 months after contamination at 3 μg L-1 esfenvalerate. Under both temperature regimes, we identified strength of interspecific competition as the mechanism determining the time until recovery. However, enhanced interspecific competition under warming conditions was prolonged and explained the delayed recovery of Daphnia spp. from esfenvalerate. These results show that, for realistic prediction of the combined effects of changing environmental factors and toxicants on sensitive taxa, the impacts of stressors on the biotic interactions within the community need to be considered. © 2013 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62445
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of System Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstrasse 15, Leipzig, 04318, Germany; Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, Aachen, 52074, Germany; Quantitative Landscape Ecology, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstraße 7, Landau, 76829, Germany; Institute of Systematics and Ecology of Animals, ISEA, Frunze Street 11, Novosibirsk, 630091, Russian Federation
Recommended Citation:
Knillmann S.,Stampfli N.C.,Noskov Y.A.,et al. Elevated temperature prolongs long-term effects of a pesticide on Daphnia spp. due to altered competition in zooplankton communities[J]. Global Change Biology,2013-01-01,19(5)