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Instituto Politecnico de Braganca (2014)

Caraterização ecológica da codorniz comum (Coturnix coturnix L.) no Nordeste Transmontano

Sousa, Manuel Agostinho Beça de

Titre : Caraterização ecológica da codorniz comum (Coturnix coturnix L.) no Nordeste Transmontano

Auteur : Sousa, Manuel Agostinho Beça de

Université de soutenance : Instituto Politecnico de Braganca

Grade : Mestrado em Gestão dos Recursos Florestais 2014

Résumé
The Common Quail (Coturnix coturnix L.) is the smallest bird in the order of galliforms, with the particularity of being migratory and have erratic movements. This aspect, combined with the fact that its preferred habitat are very dense cereal fields, severely hampers all research on the species. The breeding scheme is extraordinarily complex, with multiple connections between males and females and a phenology ranging from Morocco to the South of the Scandinavian countries, depending on latitude and altitude. Sexual precocity suggests that juveniles born in the southern regions can breed in Northern areas. Following monitoring studies conducted in four countries of the Atlantic distribution range of the species, Spain, France, Morocco and Portugal (Mirandela – Nordeste Transmontano and Maranhão – Alto Alentejo), to determine the status of the populations of the common quail was used a new methodology based on census singers males, in the capture and ringing and monitoring during the reaping of grain. The results suggest that during the study period, the trend of the population was fairly stable, although natural inter-annual fluctuations. This monitoring allowed us to establish three types of categories for the sampled areas, with different implications in the management and conservation of the species. The human influence on habitat seems to be decisive, positively or negatively, on population dynamics and conservation of the common quail, regarded as a key element in ecosystems and deserves special attention from the point of view of rational and sustainable hunting use. The continued monitoring, using the techniques previously learned, to increase knowledge of population trends of the species in the region, guided this work.

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