Sensitivity of animals to chemical compounds links to metabolic rate

Baas, Jan; Kooijman, Sebastiaan A.L.M.. 2015 Sensitivity of animals to chemical compounds links to metabolic rate. Ecotoxicology, 24 (3). 657-663.

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Ecotoxicological studies have shown considerable variation in species sensitivity for chemical compounds, but general patterns in sensitivity are still not known. A better understanding of this sensitivity is important in the context of environmental risk assessment but also in a more general ecological and evolutionary one. We investigated the metabolic rate or more precise the specific somatic maintenance (expressed in J cm−3 d−1, at a standardised body temperature of 20 °C) on the sensitivity of a species to chemical poisoning. The sensitivity of a species was expressed in terms of its threshold concentration for survival, the no effect concentrations (NEC, in µmol/L). Somatic maintenance data were based on the ‘add-my-pet’ database hosted by the VU University of Amsterdam. NECs were derived from the US-EPA ECOTOX database. We focussed on four pesticides; two that need a metabolic activation, Chlorpyrifos and Malathion, and two without metabolic activation, carbofuran and carbaryl. All four pesticides showed a similar response: a strong negative correlation between the specific somatic maintenance and the NEC. We discuss possible explanations, deviations and ecological implications.

Item Type: Publication - Article
Digital Object Identifier (DOI):
UKCEH and CEH Sections/Science Areas: Acreman
ISSN: 0963-9292
Additional Keywords: species sensitivity, biological traits, specific somatic maintenance, no effect concentration, pesticides
NORA Subject Terms: Ecology and Environment
Date made live: 18 Mar 2015 16:34 +0 (UTC)

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