Combined and interactive effects of global climatee change and toxicants on popuylations and communities

S.R. Moe, K.A.C. de Schamphelaere, W.H. Clements, T. Sorensen, P.J. van den Brink, M. Liess

Research output: Contribution to journalArticleAcademicpeer-review

159 Citations (Scopus)

Abstract

Increased temperature and other environmental effects of global climate change (GCC) have documented impacts on many species (e.g., polar bears, amphibians, coral reefs) as well as on ecosystem processes and species interactions (e.g., the timing of predator-prey interactions). A challenge for ecotoxicologists is to predict how joint effects of climatic stress and toxicants measured at the individual level (e.g., reduced survival and reproduction) will be manifested at the population level (e.g., population growth rate, extinction risk) and community level (e.g., species richness, food-web structure). The authors discuss how population- and community-level responses to toxicants under GCC are likely to be influenced by various ecological mechanisms. Stress due to GCC may reduce the potential for resistance to and recovery from toxicant exposure. Long-term toxicant exposure can result in acquired tolerance to this stressor at the population or community level, but an associated cost of tolerance may be the reduced potential for tolerance to subsequent climatic stress (or vice versa). Moreover, GCC can induce large-scale shifts in community composition, which may affect the vulnerability of communities to other stressors. Ecological modeling based on species traits (representing life-history traits, population vulnerability, sensitivity to toxicants, and sensitivity to climate change) can be a promising approach for predicting combined impacts of GCC and toxicants on populations and communities.
Original languageEnglish
Pages (from-to)49-61
JournalEnvironmental Toxicology and Chemistry
Volume32
Issue number1
DOIs
Publication statusPublished - 2013

Keywords

  • ecological risk-assessment
  • stream benthic communities
  • trout oncorhynchus-mykiss
  • invertebrate communities
  • potamocorbula-amurensis
  • potential application
  • organic contaminants
  • ecosystem responses
  • species traits
  • b radiation

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