Side effects of rodent control on non-target species: Rodenticides increase parasite and pathogen burden in great bustards
| Autor: | Carlos Ponce, Juan C. Alonso, Marina Magaña, J.A. Lemus, Carolina Bravo, M. García-Montijano, Carlos Palacín |
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| Rok vydání: | 2011 |
| Předmět: |
Veterinary medicine
Environmental Engineering Chlorophacinone Parasite Load Predation Birds Flocoumafen chemistry.chemical_compound Secondary poisoning Animals Environmental Chemistry Parasites Rodenticide Bustard Waste Management and Disposal Otis tarda biology Arvicolinae Endangered Species Anticoagulants Rodenticides 4-Hydroxycoumarins biology.organism_classification Pollution Liver chemistry Spain Indans Threatened species Great bustard Rodent Control Vole |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 0048-9697 |
| DOI: | 10.1016/j.scitotenv.2011.07.007 |
| Popis: | 7 paginas, 3 figuras y 1 table For many years anticoagulant rodenticides have been used in vole control campaigns, in spite of the proven risk of secondary poisoning of non-target predators and scavengers. In this paper we analyse for the first time great bustard exposure and intoxication by anticoagulant rodenticides in Spain, based on residues found in the livers of 71 bustard carcasses collected during 1991–2010. Ten individuals contained chlorophacinone and one flocoumafen. Chlorophacinone level was significantly correlated with the pathogen and parasite burden of intoxicated birds. Moreover, through the last 12 years the annual number of great bustards that present chlorophacinone in liver collected in our study areas was correlated with vole peaks at a nearby area, suggesting that the ingestion of rodenticide was proportional to the amounts spread in the fields. We conclude that rodenticide consumption is a regular event among great bustards when baited cereal is spread on fields, and that this may cause chronic weakening of intoxicated individuals, possibly affecting their survival. Future rodent control actions should consider these negative side effects on non target granivorous steppe and farmland species, particularly when they are globally threatened. Financial support was provided by project CGL2008-02567 of the Dirección General de Investigación, Spanish Ministry for Science and Innovation |
| Databáze: | OpenAIRE |
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