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Thyroid disruption in the lizard Podarcis bocagei exposed to a mixture of herbi...
Bicho, Rita C.; Amaral, Maria José; Faustino, Augusto M. R.; Power, Deborah; Rêma, Alexandra; Carretero, Miguel A.; Soares, Amadeu M. V. M.Pesticide exposure has been related with thyroid disrupting effects in different vertebrate species. However, very little is known about the effects of these compounds in reptiles. In the Mediterranean area, lacertid lizards are the most abundant vertebrate group in agroecosystems, and have been identified as potential model species for reptile ecotoxicology. The aim of this study was to understand if the herbi...
Thyroid disruption in the lizard Podarcis bocagei exposed to a mixture of herbi...
Bicho, Rita C.; Amaral, Maria José; Faustino, Augusto M. R.; Power, Deborah M.; Rêma, Alexandra; Carretero, Miguel A.; Soares, Amadeu M. V. M.Pesticide exposure has been related with thyroid disrupting effects in different vertebrate species. However, very little is known about the effects of these compounds in reptiles. In the Mediterranean area, lacertid lizards are the most abundant vertebrate group in agroecosystems, and have been identified as potential model species for reptile ecotoxicology. The aim of this study was to understand if the herbi...
Biomarkers of exposure and effect in a lacertid lizard (Podarcis bocagei Seoane...
Amaral, Maria José; Sanchez-Hernandez, Juan C.; Bicho, Rita C.; Carretero, Miguel A.; Valente, Ricardo; Faustino, Augusto M. R.; Soares, Amadeu M. V. M.In Europe, reptiles have been recently included in environmental risk-assessment processes for registration of plant-protection products. However, data on toxicity effects of most compounds are lacking. Chlorpyrifos is the most commonly used organophosphorus insecticide worldwide. In the present study, the authors exposed a lacertid lizard, Podarcis bocagei, to sublethal concentrations of chlorpyrifos. Individu...
The usefulness of mesocosms for ecotoxicity testing with lacertid lizards
Amaral, Maria José; Bicho, Rita C.; Carretero, Miguel A.; Sanchez-Hernandez, Juan C.; Faustino, Augusto; Soares, Amadeu M. V. M.; Mann, Reinier M.Mesocosms (i.e., outdoor, man-made representations of natural ecosystems) have seldom been used to study the impact of contaminants on terrestrial ecosystems. However, mesocosms can be a useful tool to provide a link between field and laboratory studies. We exposed juvenile lacertid lizards for a period of over one year to pesticides (herbicides and insecticides) in mesocosm enclosures with the intention of val...
The use of a lacertid lizard as a model for reptile ecotoxicology studies - par...
Amaral, Maria José; Carretero, Miguel A.; Bicho, Rita C.; Soares, Amadeu M. V. M.; Mann, Reinier M.At the European level, lacertid lizards have been proposed as potential model species for reptile ecotoxicology. We studied demographic and morphological aspects of natural field subpopulations of Podarcis bocagei inhabiting similar agricultural habitats which were either regularly exposed to pesticides, or not. Parameters examined in this study included population size and density, sex ratio, adult body size, ...
The use of a lacertid lizard as a model for reptile ecotoxicology studies: part...
Amaral, Maria José; Bicho, Rita C.; Carretero, Miguel A.; Sanchez-Hernandez, Juan C.; Faustino, Augusto M. R.; Soares, Amadeu M. V. M.; Mann, Reinier M.As part of a wider study examining the impacts of corn pesticides on lacertid lizards in north-western Portugal, we examined various physiological, biochemical, and histological biomarkers of exposure and effect among field populations of Podarcis bocagei. Biomarkers included body condition index, standard metabolic rate, locomotor performance, parasitization, glutathione oxidative pathways and related enzyme a...