Fitness consequences of anthropogenic hybridization in wild red-legged partridge (Alectoris rufa, Phasianidae) populations
- F. Casas, F. Mougeot, I. Sánchez-Barbudo, J. A. Dávila, J. Viñuela
- Biology, Environmental ScienceBiological Invasions
- 1 February 2012
Investigation of fitness differences between hybrid and “pure” red-legged partridges in a wild population located in central Spain shows that, despite lower survival, hybrid partridges breed in natural populations, so this could increase extinction risk of wild pure partridge populations, through releases of farmed hybrid birds.
Double-nesting behaviour and sexual differences in breeding success in wild Red-legged Partridges Alectoris rufa
There was significant variation among years and between sexes in laying date, clutch size and hatching success, and the probability of clutch loss to predation differed between sexes, being much higher for nests incubated by females.
Effects of human activity on physiological and behavioral responses of an endangered steppe bird
Little bustard showed marked behavioral and physiological responses to human activities that peaked during weekends, in particular hunting, which might adversely impact wintering populations of this nongame endangered species, potentially counteracting conservation efforts conducted on local as well as foreign breeding populations.
An improved night-lighting technique for the selective capture of sandgrouse and other steppe birds
- A. Benítez‐López, F. Mougeot, J. Viñuela
- Environmental Science, BiologyZeitschrift f\ ur Jagdwissenschaft
- 1 April 2011
The night-lighting technique is a highly selective and harmless method to capture sandgrouse and can be used for other small/medium-sized open-land birds or mammals.
Effects of hunting on the behaviour and spatial distribution of farmland birds: importance of hunting‐free refuges in agricultural areas
Hunting is one of the human activities that directly affect wildlife and has received increasing attention given its socioeconomic dimensions. Most studies have been conducted on coastal and wetland…
Prevalence of Escherichia coli, Salmonella sp. and Campylobacter sp. in the intestinal flora of farm-reared, restocked and wild red-legged partridges (Alectoris rufa): is restocking using farm-reared…
- S. Díaz-Sánchez, Ainhoa Mateo Moriones, F. Casas, U. Höfle
- BiologyZeitschrift f\ ur Jagdwissenschaft
- 1 February 2012
It is suggested that farm-reared and restocked partridges can act as carriers of these three enteropathogens and highlight a potential risk of transmission to natural populations via the releases of farm- reared partridges.
Sanitary risks of red-legged partridge releases: introduction of parasites
The results suggest that the release of farm-reared red-legged partridges, a strategy that is becoming a common practice in Spanish hunting areas, poses risk to wild populations because of introducing parasites, but also suggest that simply stopping releases may be a good way to remove locally those parasites from populations, as the establishment of the introduced parasites seems limited.
Agricultural practices or game management: which is the key to improve red-legged partridge nesting success in agricultural landscapes?
SUMMARY 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…
Bottoms up: great bustards use the sun to maximise signal efficacy
- P. P. Olea, F. Casas, S. Redpath, J. Viñuela
- BiologyBehavioral Ecology and Sociobiology
- 9 February 2010
The hypothesis that orientation of sexual displays in male great bustard (Otis tarda) depends upon position of the sun, i.e., males direct their uplifted white tails towards the sun in order to maximise signal detectability to distant females was tested.
A Resource-Based Modelling Framework to Assess Habitat Suitability for Steppe Birds in Semiarid Mediterranean Agricultural Systems
A resource-based model framework is developed to estimate habitat suitability for target species, according to key resource requirements, and whether it can be used to link land-use and local species’ distribution and compares these predictions with those obtained using the habitat-based models.