Willow Ptarmigan (Lagopus lagopus) Science Article 8 abstract We examined the role of mountain hares in the louping-ill virus/Ixodes ricinus tick system to determine whether hares were reservoirs of these pathogens for red grouse. A field experiment, which involved reducing mountain hare densities was undertaken and changes in tick abundance, louping-ill virus seroprevalence and red […]
Category: Galliformes
Seasonal infection patterns inWillow Grouse(Lagopus lagopus L.) do not supportthe presence of parasite-induced winter losses
Willow Ptarmigan (Lagopus lagopus) Science Article 4 abstract We examined the hypothesis that endoparasites ofWillow Grouse (Lagopus lagopus L.)affect host winter losses, by examining two samples ofWillow Grouse collected in earlyautumn and late winter. Body condition of juvenile birds improved from September toFebruary, but parasite-induced hostmortalities among hosts in poor conditionwere probablynot the cause. If […]
RELATIVE USE OF SECONDARY FORESTS BY CRACIDS INCENTRAL AMAZONIA
Spixs Guan (Penelope jacquacu) Science Article 1 abstract Curassows, guans, and chachalacas (familyCracidae) are large-bodied (400 g to 3500 g)galliform birds found exclusively in the Americas,with most species restricted to SouthAmerica (Delacour & Amadon 1973, delHoyo 1994). Despite their important role inforest dynamics as dispersers of seed plants,most cracid species remain poorly known(Strahl & Grajal […]
Synchrony, scale and temporal dynamics of Rock partridge (Alectoris graeca saxatilis) populations in the Dolomites
Rock Partridge (Alectoris graeca) Science Article 1 abstract 1. We examine harvesting records of rock partridge (Alectoris graeca saxatilis) to first identify thepresence of cycles in a species with a southern European distribution and then examine synchronybetween populations at a range of scales.2. Hunting records from 1965 to 1994 were obtained from 210 hunting areas […]
Mitochondrial DNA sequence variation and phylogeographical structure of rock partridge (Alectoris graeca) populations
Rock Partridge (Alectoris graeca) Science Article 4 abstract The rock partridge (Alectoris graeca) is distributed in the Alps, Apennines and Balkans, in mountainous areas that were heavily affected by cyclic climate and landscape changes during the last Pleistocene glaciations. Some partridge populations have colonized and expanded their present ranges only after deglaciation and recent deforestation […]
Evolutionary and conservation genetics of the rock partridge, Alectoris graeca
Rock Partridge (Alectoris graeca) Science Article 3 abstract Rock partridge (Alectoris graeca) populations are declining throughout their range due to habitat changes and overhunting. Massive restocking with captive-reared hybrid birds may lead to risk of genetic pollution. We sequenced 450 nucleotides from the mitochondrial DNA control-region, and genotyped eight microsatellite loci with the aim of […]
Egg Production and Some Hatchability Characteristics of RockPartridges (Alectoris graeca) Mated at Different Rates
Rock Partridge (Alectoris graeca) Science Article 2 abstract This study was carried out to determine the hatchability characteristics of rock partridges mated at the ratio of one maleto three females, one male to four females and one male to five females. Egg production/hen (%), fertile eggs/hen, fertility,hatchability and hatchability of fertile eggs of one male […]
CAUSES AND CONSEQUENCES OF INGESTED LEAD PELLETS IN CHUKARS
Red-legged Partridge (Alectoris rufa) Science Article 4 abstract Lead-pellet ingestion andthe resulting toxicosis are well-documented in waterfowl,raptors, and Mourning Doves (Zenaidamacroura) (Kendall et al. 1996). R. JUSTIN BINGHAM et al, US Geological Survey – Utah Cooperative Fish and Wildlife Research Unit Download article download full text (pdf)
Sex- and age-related variation in plasma carotenoids despite a constant diet in the Red-legged Partridge Alectoris rufa
Red-legged Partridge (Alectoris rufa) Science Article 2 abstract We studied seasonal variation in plasma carotenoid levels of captive Redlegged Partridges Alectoris rufa in relation to sex, age and condition. The legs, bill and eye lores in this species are bright red due to carotenoid pigments. Carotenoid levels in the plasma varied significantly among sampling periods. […]
Effects of Housing Type and Breeding System on the Reproductive Capacity of the Red-Legged Partridge (Alectoris rufa)
Red-legged Partridge (Alectoris rufa) Science Article 1 abstract Current methods of intensive breeding of the red-legged partridge (Alectoris rufa) are based on ‘industrial’ laying practices, including removal and artificial incubation of eggs. These procedures can alter the reproductive behavior and physiology of the birds and, therefore, may not be suitable for use in breeding programs […]