A high level of nest predation observed in a large Sand Martin (Riparia riparia) colony
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چکیده
منابع مشابه
Aerial hunting techniques and predation success of Hobbies Falco subbuteo on Sand Martin Riparia riparia at breeding colonies
in animals are potential anti-predator benefits, including the many-eyes effect, predator confusion, the dilution of individual risk of being caught when part of a large group, and the selfish herd effect (Krause & Ruxton 2002). The many-eyes effect postulates that an increased number of potential prey individuals scanning for predators are more effective at detecting their approach, and this e...
متن کاملEffect of food shortage on the physiology and competitive abilities of sand martin (Riparia riparia) nestlings.
We examined developmental and behavioural plasticity of sand martin (Riparia riparia) nestlings hand-reared under laboratory conditions. We created six broods of six 4-day-old nestlings and randomly assigned them to one of the two following feeding regimens, each lasting for 3 days: (1) all nestmates fed a similar, limited amount of food (FR nestlings). This simulated synchronous hatching under...
متن کاملabsorbed radiation dose from radon to the sand martin riparia riparia during breeding at the sand mines in eastern poland
animals that breed in ground holes can be exposed to higher doses of radiation from natural radioactive isotopes, including radon and its daughters, present in soil air. one of such species is the sand martin riparia riparia. examination of natural burrows in sand mines revealed radon levels of 2.82-1320 bq/m3 in the examined soil horizon where martins dug their burrows. it was shown that adult...
متن کاملBetween-male variation in sperm size, velocity and longevity in sand martins Riparia riparia
F. Helfenstein (correspondence), Evolutionary Ecology Group, Zoological Institute, University of Bern, Baltzerstrasse 6, CH-3012 Bern, Switzerland. E-mail: [email protected]. R. H. Wagner, Konrad Lorenz Institute, Austrian Academy of Sciences, Savoyenstrasse 1a, A-1160 Vienna, Austria. T. Szép, Institute of Environmental Sciences, College of Nyı́regyháza, P.O. Box 166, H-4401 Nyı́regyhá...
متن کاملBayesian analysis of a Gibbs hard-core point pattern model with varying repulsion range
Gibbs point processes are statistical models for spatial point patterns with repulsive interactions between points. Traditionally a constant repulsion range is assumed. In reality, the repulsion range might change from location to location as a result of environmental heterogeneity. In this talk I will discuss the modeling of space varying repulsion range parameter in Bayesian framework using G...
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ژورنال
عنوان ژورنال: Ornis Hungarica
سال: 2016
ISSN: 2061-9588
DOI: 10.1515/orhu-2016-0014