Great tits Parus major and blue tits Cyanistes caeruleus as indicators of agri-environmental habitat quality
نویسندگان
چکیده
منابع مشابه
Breeding performance of blue tits (Cyanistes caeruleus) and great tits (Parus major) in a heavy metal polluted area.
We compared heavy metal levels, calcium levels, breeding parameters and condition of nestling and adult Cyanistes caeruleus and Parus major along a heavy metal pollution gradient. Both species started laying earlier and showed inferior nestling growth and smaller fledging probability in the polluted areas, which are phenologically advanced in spring due to sparse forests. The major inter-specif...
متن کاملNatal dispersal and personalities in great tits (Parus major).
Dispersal is a major determinant of the dynamics and genetic structure of populations, and its consequences depend not only on average dispersal rates and distances, but also on the characteristics of dispersing and philopatric individuals. We investigated whether natal dispersal correlated with a predisposed behavioural trait: exploratory behaviour in novel environments. Wild great tits were c...
متن کاملWithin-population variation in prevalence and lineage distribution of avian malaria in blue tits, Cyanistes caeruleus.
The development of molecular genetic screening techniques for avian blood parasites has revealed many novel aspects of their ecology, including greatly elevated diversity and complex host-parasite relationships. Many previous studies of malaria in birds have treated single study populations as spatially homogeneous with respect to the likelihood of transmission of malaria to hosts, and we have ...
متن کاملAre great tits (Parus major) really optimal foragers?
In this study, we test the classical prey model of optimal-foraging theory with great tits (Parus major) feeding on two types of mealworms presented on a conveyor belt. Contrary to the results of some previous experiments, prey types were given to birds in random order, therefore birds could not predict their next prey item. We tested birds’ diet choices at four different prey-encounter rates. ...
متن کاملSocial environment affects juvenile dispersal in great tits (Parus major).
1. Habitat selection can affect individual fitness, and therefore, individuals are expected to assess habitat quality of potential breeding sites before settlement. 2. We investigated the role of social environment on juvenile dispersal behaviour in the great tit (Parus major). Two main contradictory hypotheses can be formulated regarding social effects on juvenile dispersal as follows: (i) Hig...
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ژورنال
عنوان ژورنال: Agriculture, Ecosystems & Environment
سال: 2013
ISSN: 0167-8809
DOI: 10.1016/j.agee.2013.06.015