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Density‐dependent effects on productivity in the Griffon Vulture Gyps fulvus: the role of interference and habitat heterogeneity
TLDR
The increase in the regional density of Griffon Vultures produced a decrease in the productivity at both optimal and suboptimal nest sites, which suggests that density-dependent regulation of breeding success operates through interference and that all the individuals in a colony are similarly affected.
Effect of the viral haemorrhagic pneumonia of the wild rabbit on the diet and breeding success of the golden eagle Aquila chrysaëtos (L.)
L'auteur a etudie les consequences sur le regime alimentaire et la reproduction de 15 couples d'Aigles royaux de l'epidemie de Pneumonie Hemmoragique Virale (VHP) qui frappe depuis 1989 les
Population trends of the griffon vulture Gyps fulvus in Northern Spain between 1969 and 1989 in relation to conservation measures
Abstract In a region of northern Spain the griffon vulture Gyps fulvus population remained stable between 1969 and 1975, hovering around 282 pairs in 23 colonies. In 1979 there were 364 pairs in 26
From local monitoring to a broad-scale viability assessment: a case study for the Bonelli’s Eagle in western Europe
Population viability analysis (PVA) has become a basic tool of current conservation practice. However, if not accounted for properly, the uncertainties inherent to PVA predictions can decrease the
The discovery of Iberobaeniidae (Coleoptera: Elateroidea): a new family of beetles from Spain, with immatures detected by environmental DNA sequencing
TLDR
Molecular dating shows that Iberobaeniidae represents an ancient relict lineage originating in the Lower Jurassic, which possibly indicates a long history of neoteny, usually considered to be evolutionarily short-lived.
Influence of forest structure on the density and distribution of the White-backed Woodpecker Dendrocopos leucotos and Black Woodpecker Dryocopus martius in Quinto Real (Spanish western Pyrenees)
TLDR
Principal components analysis indicated that forest plots occupied by the woodpeckers had a high percentage of beech in old forest and with many large trees (diameter at breast height, dbh, over 60 cm).
Human disturbance affects parental care of marsh harriers and nutritional status of nestlings
TLDR
The number of food items delivered and the time spent by males and females in the nesting area and on the nest decreased during disturbed periods, especially during incubation and nestling phases, whereas behaviors related to stress increased.
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