Search results for "hirundo"
showing 7 items of 7 documents
Weak effects of geolocators on small birds: A meta-analysis controlled for phylogeny and publication bias
2020
Abstract Currently, the deployment of tracking devices is one of the most frequently used approaches to study movement ecology of birds. Recent miniaturization of light‐level geolocators enabled studying small bird species whose migratory patterns were widely unknown. However, geolocators may reduce vital rates in tagged birds and may bias obtained movement data. There is a need for a thorough assessment of the potential tag effects on small birds, as previous meta‐analyses did not evaluate unpublished data and impact of multiple life‐history traits, focused mainly on large species and the number of published studies tagging small birds has increased substantially. We quantitatively reviewe…
Inter-specific nest re-use by Barn Swallows Hirundo rustica
2017
ABSTRACTCapsule: Reports of inter-specific nest re-use by Barn Swallows Hirundo rustica in Europe and North America are reviewed. Inter-specific nest re-use was rare but appeared opportunistic, possibly functioning as a time-saving mechanism or as a result of limited nest sites.
Brevi note ornitologiche dalla Sicilia occidentale
1998
Ornithological short notes from western Sicily (Italy)
LA STERNA COMUNE STERNA HIRUNDO (Aves Sternidae) NIDIFICA REGOLARMENTE IN SICILIA?
2018
Is Common tern Sterna hirundo (Aves Sternidae) regular breeding in Sicily?
AN ANALYSIS OF CONTINENT-WIDE PATTERNS OF SEXUAL SELECTION IN A PASSERINE BIRD
2006
Patterns of selection are widely believed to differ geographically, causing adaptation to local environmental conditions. However, few studies have investigated patterns of phenotypic selection across large spatial scales. We quantified the intensity of selection on morphology in a monogamous passerine bird, the barn swallow Hirundo rustica, using 6495 adults from 22 populations distributed across Europe and North Africa. According to the classical Darwin-Fisher mechanism of sexual selection in monogamous species, two important components of fitness due to sexual selection are the advantages that the most attractive males acquire by starting to breed early and their high annual fecundity. W…
Bestiari Llatí Polisemàntic: un Estudi Motivacional
2015
La tesi és un estudi semàntic diacrònic dels cinquanta zoònims llatins més productius de significats figurats o metasèmies; alhora constitueix una anàlisi motivacional de la creació de lèxic nou en general, i zoonímic en particular. Es constata que els zoònims constitueixen segurament el camp semàntic de més capacitat per a un ús figurat metafòric o metonímic. S'analitzen, doncs, les 16 derives semàntiques dels zoònims llatins, que per ordre de major freqüència a menor freqüència són les següents: noms de persona (antropònims), noms de plantes o fruits (fitònims), noms de caràcter, especialment insults i termes afectuosos (etònims), noms de lloc (topònims), noms d'animals procedents de noms…
Maternal antibody transmission and breeding densities in the Black-headed Gull Larus ridibundus
2004
1. The offspring of avian species, especially those of colonial breeders, are exposed to a number of pathogens immediately after birth. The chick's immune system is, at that early stage still immature and inefficient. As a consequence, diseases can have a strong impact on chick survival.2. The ability of mothers to transmit passive immunity in terms of antibodies of their own acquired immunity to their chicks is probably an essential pathway to enhance the chick survival. Since the production of antibodies is costly, females are expected to adjust the transmission of passive immunity to the local disease environment.3. We found that in Black-headed Gulls (Larus ridibundus L.) yolk antibody …