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Effect of human activities on the behaviour of breeding Spanish imperial eagles (Aquila adalberti): management implications for the conservation of a threatened species
TLDR
The results suggest that the critical inner buffer zone around Spanish imperial eagle nests should be established at a minimum radius of 500 m, and the vulnerable zones at aminimum of 800 m, bearing in mind the physiography of the terrain and the visibility of the nests.
Conservation of the Montagu's harrier (Circus pygargus) in agricultural areas
The Montagu's harrier (Circus pygargus) is a ground‐nesting raptor that breeds mainly in cereal crops in western Europe. We evaluate how the use of agricultural habitats may affect population
Birds of prey as limiting factors of gamebird populations in Europe: a review
TLDR
The few existing studies indicate that, under certain conditions, raptor predation may limit gamebird populations and reduce gamebird harvests, but there is an urgent need to develop further studies, particularly in southern Europe, to determine the functional and numerical responses of raptors to gamebirds in species and environments other than those already evaluated in existing studies.
Resource defence on exploded leks: do male little bustards, T. tetrax, control resources for females?
TLDR
This work investigated the relationship between resources for females, male distribution and male attractiveness in little bustards and found that females did not use the amount of resources defended as a criterion for mate choice, as male attractiveness was not related to various territorial resources.
Colonial breeding and nest defence in Montagu's harrier (Circus pygargus)
TLDR
The number of recruits significantly increased with increasing alarm rate of the tested individuals, even when taking colony size into account, and the higher recruitment and attack rates for dangerous predators were apparently modulated through alarm calling.
Copulatory Behavior of Semi-Colonial Montagu’s Harriers
TLDR
Montagu's Harriers increased their copulation rate in situations of increased EPC risk: solitary pairs copulated for a shorter period of time and at an overall lower frequency, whereas pairs nesting in clumps showed higher copulation rates with increasing number of neighboring pairs.
Archiving Primary Data: Solutions for Long-Term Studies.
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