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Article
Arthur O. Askeyev, Auteur ; Oleg V. Askeyev, Auteur ; Igor V. Askeyev, Auteur ; Tim H. Sparks, AuteurThe climate of Eastern Europe has undergone major changes in recent decades. Significant increases in seasonal temperatures and in droughts in the Republic of Tatarstan have adversely affected the status of the forests. As a consequence, the num[...]
Article
Joachim Siekiera, Auteur ; Łukasz Jankowiak, Auteur ; Artur Siekiera, Auteur ; Norbert Chmura, Auteur ; Piotr Profus, Auteur ; Tim H. Sparks, Auteur ; Piotr Tryjanowski, AuteurCapsule White Storks Ciconia ciconia forming migrating flocks in southern Poland in autumn came from central Poland and eastern Germany, and used ploughed fields and cut meadows to forage before they moved south.Aims The aim of this study was to[...]
Article
Łukasz Myczko, Auteur ; Zuzana Mizerová, Auteur ; Anna Maria Kubicka, Auteur ; Tim H. Sparks, Auteur ; Martin Hromada, AuteurCapsule: Different methods of comparing bill morphology between woodpecker species show different, but not contradictory results.Aims: Differences among similar, closely related species which co-occur are still highly debated. In such a scenario[...]
Article
William R. Meek, Auteur ; Peter J. Burman, Auteur ; Tim H. Sparks, Auteur ; Marek Nowakowski, Auteur ; Niall J. Burman, AuteurCapsule Barn Owl pellets can be used to assess population changes in small mammals though with certain important reservations. Aims To conduct a large-scale, long-term analysis of pellets regurgitated by Barn Owls collected from a defined area o[...]
Article
David Jenkins, Auteur ; Tim H. Sparks, AuteurCapsule Marked changes were observed in the spring phenology of birds and were more apparent in residents and short-distance migrants than in trans-Mediterranean migrants. Aims To examine changes in first songs and arrivals of birds in northeast[...]
Article
William R. Meek, Auteur ; Peter J. Burman, Auteur ; Marek Nowakowski, Auteur ; Tim H. Sparks, Auteur ; Ross A. Hill, Auteur ; Ruth D. Swetnam, Auteur ; Niall J. Burman, AuteurDans Bird Study (56 2009)Capsule This study examines the relationship between habitat variables and various aspects of breeding and foraging performance for 257 Barn Owl breeding attempts involving both released and wild birds, at 86 different nest-sites over a 14-year [...]
Article
Piotr Tryjanowski, Auteur ; Tim H. Sparks, Auteur ; Marcin Bocheński, Auteur ; Miroslawa Dabert, Auteur ; Mariusz Kasprzak, Auteur ; Piotr Kaminski, Auteur ; Slawomir Mroczkowski, Auteur ; Ewa Wisniewska, Auteur ; Leszek Jerzak, AuteurSex allocation has been a fertile topic in the development of evolutionary theory. The dominant models for vertebrates have provided predictions of sex ratios based on asymmetry in breeding success between sexes and the relative effect of local [...]
Article
Marcin Tobolka, Auteur ; Tim H. Sparks, Auteur ; Piotr Tryjanowski, AuteurThe White Stork (Ciconia ciconia) is an icon of nature protection and one of the easiest birds to monitor, particularly in Central Europe. Here avian biodiversity was compared between sites (territories) occupied by nesting White Storks and site[...]
Article
Zuzanna M. Rosin, Auteur ; Piotr Skorka, Auteur ; Przemyslaw Wylegala, Auteur ; Bartosz Krakowski, Auteur ; Marcin Tobolka, Auteur ; Lukasz Myczko, Auteur ; Tim H. Sparks, Auteur ; Piotr Tryjanowski, AuteurIt is well known that agricultural intensification has caused severe population declines among bird species which use farmland for breeding and overwintering, while migrating bird species may benefit from intensive farming, but in turn damage cr[...]
Article
Joanna T. Staley, Auteur ; Tim H. Sparks, Auteur ; Philip J. Croxton, Auteur ; Katherine C. R. Baldock, Auteur ; Matthew S. Heard, Auteur ; Sarah Hulmes, Auteur ; Lucy Hulmes, Auteur ; Jodey Peyton, Auteur ; Sam R. Amy, Auteur ; Richard F. Pywell, AuteurHedgerows provide important habitat and food resources for overwintering birds, mammals and invertebrates. Currently, 41% of managed hedgerow length in England forms part of three Agri-Environment Scheme (AES) options, which specify a reduction [...]
Article
Piotr Tryjanowski, Auteur ; Tim H. Sparks, Auteur ; Humphrey Q. P. Crick, AuteurWe compare the breeding ecology of Red-backed Shrike Lanius collurio prior to its effective extinction (in 1990) as a breeding bird in the UK with that of a stable population in southwestern Poland. We use breeding performance data derived from [...]
Article
Piotr Tryjanowski, Auteur ; Tim H. Sparks, Auteur ; Robert Kamieniarz, Auteur ; Marek Panek, AuteurRecently, hunting has represented a major source of mortality in game animals, including red fox, Vulpes vulpes, populations. Data from hunting studies have been used to explain evolutionary changes (body size, dental structure) in fox populatio[...]
Article
Piotr Kaminski, Auteur ; Leszek Jerzak, Auteur ; Tim H. Sparks, Auteur ; Alison Johnston, Auteur ; Marcin Bocheński, Auteur ; Mariusz Kasprzak, Auteur ; Ewa Wisniewska, Auteur ; Slawomir Mroczkowski, Auteur ; Piotr Tryjanowski, AuteurBiochemical and blood cell parameters have commonly been employed as useful minimally invasive indicators of the health or nutritional status of many species. Here, we present data on a suite of commonly measured blood parameters from 342 White [...]
Article
Julia Laube, Auteur ; Tim H. Sparks, Auteur ; Claus Baessler, Auteur ; Annette Menzel, AuteurRecent studies suggest that invasive plant species have colonised mountains to previously unobserved elevations, possibly due to ongoing climate change. Thus, they might pose new threats to high-elevation ecosystems, which are often of high cons[...]
Article
Peter B. Hardy, Auteur ; Tim H. Sparks, Auteur ; Nick J. B. Isaac, Auteur ; Roger L. H. Dennis, AuteurSpecialism is a key issue in conserving organisms. Using a new database of consumer resources we investigate specialism among British butterflies. Different measures for the range of sources exploited by adults are compared. As number of nectar [...]
