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New impact factor and other numbers

About two weeks ago Thomson Reuters published their annual Journal Citation Report. For us editors this is a day of excited anticipation – even though most of us agree that this measure is far from perfect, it...

Regional and seasonal flight speeds of soaring migrants and the role of weather

A big challenge for migration ecologists is to resolve how environmental conditions along the migration routes of birds affect their migration timing and individual fitness. Read the authors own story behind this recent Open Access paper...

Editor´s Choice - Impressive seabird foraging studies

Rapid advances are now being made in the knowledge of the amazing foraging journeys undertaken also b y the smallest pelagic seabirds, thanks to the use of miniaturized geolocators (light loggers). Two impressive studies are published in this issue...

Density-dependent effects on nesting success of temperate-breeding Canada geese

Canada geese nesting in suburban environments are often considered a nuisance. However, their demographic expansion and ease of study offer the opportunity to examine important ecological processes. In this study, the authors conclude that both negative...

Irruptive movements and breeding dispersal of snowy owls

Tracking snowy owls has been (and still is) a great challenge. The fact that those birds are highly mobile, that they show almost no breeding site fidelity and disperse over huge distances from one year to another yet increases the challenge. The use of satellite...

South temperate birds have higher apparent adult survival than tropical birds in Africa

In the low vegetation of a nature reserve surrounding a nuclear power station on the south-west coast of South Africa, a community of passerine birds breeds at an extraordinarily high density. With up to 1,640 nests monitored and 1,255 birds banded each year...

Editor´s Choice - Colonization pathways of the northeast Atlantic by northern fulmars

The fulmar Fulmarus glacialis has expanded greatly in the North Atlantic during the recent 350 years, as compiled and analyzed from faunistic historical literature by James Fisher. This expansion may have started from either or both of the two oldest breeding...

Editor´s Choice: Avian malaria is associated with increased reproductive investment

High quality individuals or Terminal investment? Avian malaria parasites, e.g. Haemoproteus and Plasmodium, are commonly found in many bird species. Studies aiming at estimating these parasites’ fitness effects have typically either found no effect or...

Nuthatch fecundity improves with mountain pine beetle outbreak

Food pulses during the breeding season can reduce competition for food and increase fecundity. But, for cavity-nesting birds that excavate new nest cavities, a reproductive cost associated with excavation, may limit the reproductive response to food pulses.

Editor´s Choice - The exception to the rule: Bewick's swans migrate slower in spring than in autumn

A dominating pattern among migratory birds is that migration speed during spring exceeds that during autumn. This makes exceptions to this pattern particularly interesting. The fascinating study by Nuijten et al. compares migration speed of Bewick's swans...

Editor´s Choice - Parent-environmental interactions shape acoustic signatures in tree swallows: a cross-fostering experiment

It has previously been found that the acoustic signature of begging calls is similar between nestlings from the same brood. Even though this similarity seems adaptive in colonial species where nestlings might mix, it might also be important for parental recognition...

Most downloaded papers 2013

Our publisher Wiley just released our 10 most downloaded papers for 2013. As you might expect, most of the papers on the list were also published in 2013, but there are also a few surprises...

New Subject Editor - Darren Irwin

A warm welcome to our new subject editor - Darren Irwin!

Darren Irwin is based at University of British Columbia and his research is focused around how new species evolve and how the geographical variation within species is produced. His innovative...

New Subject Editor - Jan van Gils

We are very happy to welcome Jan van Gils to our editorial team!

Jan van Gils has a very strong research profile in ecophysiology, foraging behaviour, evolutionary ecology and shorebird ecology, which are all core areas for Journal of Avian Biology....

Endozoochory largely outweighs epizoochory in migrating passerines

Migrating birds give seeds the opportunity of a lifetime: a journey they will never forget! But what’s the best way to hitchhike? In the comfort of the gut or feeling the wind on your seed coat? Find out more...

Parent–environmental interactions shape acoustic signatures in tree swallows

Acoustic signatures are common components of avian vocalizations and are important for the recognition of individuals and groups. In this study the authors investigate whether acoustic brood signatures are attributed to the genetic/maternal origins or to their rearing...

Welcome to our new homepage!

After a lot of work, we are proud to present our new homepage! We really hope that you all will enjoy it as much as we do. Apart from up-to-date journal information and author guidelines, the homepage will also function as a discussion board where you can...

Editor´s choice - Territory quality and habitat heterogeneity in ravens

A common observation in avian population ecology is a density-dependent decrease in breeding success. Among territorial species this has been explained either as depending on habitat heterogeneity; low-quality territories are occupied in a higher...

Editor´s choice - Montane birds are declining in northern Europe

There is cause for concern about the alpine and arctic bird species breeding in climate-sensitive mountainous regions. A collaborative analysis of data from systematic monitoring schemes covering the Fennoscandian mountains in northern Europe demonstrates that...

Happy New Year!

Happy New Year from Journal of Avian Biology!

We would like to thank all our our Authors, Reviewers and Readers for a fantastic year.

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