Agricultural practices or game management: which is the key to improve red-legged partridge nesting success in agricultural landscapes?
2010
Casas Arenas, Fabián | Viñuela, Javier
European agricultural landscapes hold important endangered and game species, which may add socioeconomical and ecological value to the ecosystem, and thus must be considered priority species in any management programme integrating agriculture, hunting and conservation. Patterns of red-legged partridges (Alectoris rufa) nesting habitat selection and nesting success provide information for the implementation of these kind of programmes in agrarian pseudosteppes. Nests occur mainly in cereal grain fields, although this habitat type was overall negatively selected and had the lowest nesting success. Only lindes (herbaceous strips among fields) were positively selected, and was also the habitat type with the highest nesting success. Nests within cereal grain fields were positively selected close to the field margins (mostly < 5 m). Agricultural practices, particularly harvesting, were the main cause of nest failure. Changes in agricultural practices would be a more effective means of increasing nesting success than predator control. Partridge breeding success may be improved by better management of agricultural areas, increasing the availability of lindes and slightly delaying cereal harvesting. These data may have implications for other endangered steppe-birds with similar nesting habitat, and may provide the basis for effective and successful collaborative programme between hunters and conservationists.
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