期刊
出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10934520902996849
关键词
Environmental stressors; climate change; tributyltin; Chironomidae; life history parameters; genetic impoverishment; extinction risk
资金
- Environmental Quality and its Security and Sustainment (BW-Plus)
- state of Baden-Wurttemberg [BWR 22018]
- LOEWE Research Centre Biodiversity and Climate Frankfurt (BiKF)
Exposure to pollutants under multiple environmental stressors (e.g., climate change and global warming) and the genetic diversity of populations are suspected to have serious impacts on populations and ecosystems but have only rarely been analysed. In the present study, we investigated the effects of the biocide tributyltin (TBT) within a temperature gradient (17, 20 and 23 degrees C) on life history parameters of a genetically diverse (GEN+) and a highly inbred population (GEN-) of the midge Chironomus riparius. While endpoints, mortality and reproduction parameters were considered, the population growth rate as an integrative endpoint was determined. We found severe effects for GEN-, indicating that populations with lower genetic diversity are more endangered by combined stressors such as increasing temperature and chemical pollution compared to genetically diverse populations.
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