[Productivity and reproductive success of two red partridge (Alectoris rufa) populations in different habitats]
1998
Carvalho, J. | Borralho, R.
Productivity and breeding success in different habitats were assessed for two control groups of red-legged partridge (Alectoris rufa) populations in southern (Casebres) and central (Archino) Portugal. Data was collected from territory mapping counts in july and August 1996, using pointers. Globally, a differential productivity was found between different habitat types for both areas. Bailey's tests were also used to determine whether the number of young produced on each habitat type was proportional to its availability during the breeding season. Although preference was given to cultivated lands for breeding, possibly due to higher food availability, the reproductive success tended to be lower there than in non-selected areas, such as shrublands. This could be due to higher human disturbance, higher exposure to predators and/or higher intra-specific competition on cultivated areas. Habitat management actions are suggested
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