Potential for insecticide-mediated shift in ecological dominance between two competing aphid species
| Autor: | Abd Allah A. H. Mohammed, Raul Narciso C. Guedes, Yinjun Fan, Xiwu Gao, Nicolas Desneux, Lucie S. Monticelli, Xueyan Shi |
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| Přispěvatelé: | Department of Entomology, College of Plant Protection, China Agricultural University (CAU), Institut Sophia Agrobiotech (ISA), Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Recherche Agronomique (INRA), Departamento de Entomologia, Universidade Federal de Lavras (UFLA), Modern Agro-industry Technology Research System [CARS-05] |
| Rok vydání: | 2019 |
| Předmět: |
Competitive Behavior
Insecticides Environmental Engineering Sitobion avenae [SDV]Life Sciences [q-bio] Health Toxicology and Mutagenesis Imidacloprid 0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences 01 natural sciences Intraspecific competition Rhopalosiphum padi Neonicotinoids chemistry.chemical_compound Animals Environmental Chemistry Dominance shift Triticum 0105 earth and related environmental sciences Abiotic component Aphid Ecology biology Public Health Environmental and Occupational Health food and beverages General Medicine General Chemistry Interspecific competition Nitro Compounds biology.organism_classification Pollution 020801 environmental engineering chemistry Aphids [SDE]Environmental Sciences PEST analysis |
| Zdroj: | Chemosphere Chemosphere, Elsevier, 2019, 226, pp.651-658. ⟨10.1016/j.chemosphere.2019.03.114⟩ LOCUS Repositório Institucional da UFV Universidade Federal de Viçosa (UFV) instacron:UFV |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2019.03.114 |
| Popis: | International audience; Competition is a key structuring component of biological communities, which is affected by both biotic and abiotic environmental stressors. Among the latter, anthropic stressors and particularly pesticides are noteworthy due to their intrinsic toxicity and large use in agroecosystems. However this issue has been scarcely documented so far. In this context, we carried out experiments under laboratory conditions to evaluate stress imposed by the neonicotinoid insecticide imidacloprid on intra and interspecific competition among two major wheat pest aphids. The bird cherry-oat aphid Rhopalosiphum padi L. and the English grain aphid Sitobion avenae F. were subjected to competition on wheat seedlings under varying density combinations of both species and subjected or not to imidacloprid exposure. Intraspecific competition does take place without insecticide exposure, but so does interspecific competition between both aphid species with R. padi prevailing over S. avenae. Imidacloprid interfered with both intra and interspecific competition suppressing the former and even the latter for up to 14 days, but not afterwards when a shift in dominance takes place favoring S. avenae over R. padi, in contrast with the interspecific competition without imidacloprid exposure. These findings hinted that insecticides are indeed able to mediate species interaction and competition influencing community structure and raising management concerns for favoring potential secondary pest outbreaks. |
| Databáze: | OpenAIRE |
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