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https://hdl.handle.net/10316/25688
Título: | Effects of azoxystrobin, chlorothalonil, and ethoprophos on the reproduction of three terrestrial invertebrates using a natural Mediterranean soil | Autor: | Leitão, Sara Cerejeira, M. José Van den Brink, Paul J. Sousa, J. P. |
Palavras-chave: | Pesticides; Non-target soil organisms; Natural soil; Mediterranean conditions; Ecotoxicology | Data: | 2014 | Editora: | Elsevier B.V. | Título da revista, periódico, livro ou evento: | Applied Soil Ecology | Volume: | 76 | Resumo: | The potential terrestrial toxicity of three pesticides, azoxystrobin, chlorothalonil, and ethoprophos was evaluated using reproduction ecotoxicological tests with different non-target species: the collembolan Folsomia candida, the earthworm Eisenia andrei, and the enchytraeid Enchytraeus crypticus. All reproduction tests were performed with natural soil from a Mediterranean agricultural area (with no pesticide residues) in order to improve the relevance of laboratory data to field conditions. Controls were performed with natural and standard artificial soil (OECD 10% OM). The fungicide azoxystrobin showed the highest toxicity to earthworms (EC50 = 42.0 mg a.i. kg−1 dw soil). Collembolans were the most sensitive taxa in terms of sublethal effects of chlorothalonil with an EC50 of 31.1 mg a.i. kg−1 dw soil followed by the earthworms with an EC50 of 40.9 mg a.i. kg−1 dw soil. The insecticide ethoprophos was the most toxic to collembolans affecting their reproduction with an EC50 of 0.027 mg a.i. kg−1 dw soil. Enchytraeids were generally the least sensitive of the three species tested for long-term effects. Earthworms were not always the most sensitive species, emphasizing the need to increase the number of mandatory assays with key non-target organisms in the environmental risk assessment of pesticides. | URI: | https://hdl.handle.net/10316/25688 | DOI: | 10.1016/j.apsoil.2013.12.013 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Ciências da Vida - Artigos em Revistas Internacionais |
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Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S0929139314000031-main.pdf | 846.1 kB | Adobe PDF | Ver/Abrir |
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