Polish Society for Nature Protection Salamandra

Poznań, Poland

Polish Society for Nature Protection Salamandra

Poznań, Poland
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Lesinski G.,Warsaw University of Life Sciences | Ignaczak M.,Polish Society for Nature Protection Salamandra | Kowalski M.,Wildlife Society Stork
Mammalia | Year: 2011

A bat census in the years 1981-2010 (repeated twice during each hibernation period in January and March) showed upward trends in many populations of bats hibernating in the Szachownica Cave (central Poland). Total numbers of the bat assemblage, which consisted of 11 species, increased within the study period from 178 to 1477 individuals in the first decade to 835-2902 in the past decade of the study, with the highest rates of increase noted in Barbastella barbastellus, Plecotus auritus and Myotis nattereri. Myotis myotis and Myotis daubentonii showed only slight upward trends. In the years 2009-2010, Myotis bechsteinii occurred in markedly higher numbers (up to 24 individuals) as compared to previous years. © 2011 by Walter de Gruyter Berlin New York.

Lawicki L.,West Pomeranian Nature Society | Wylegala P.,Polish Society for Nature Protection Salamandra
Wader Study Group Bulletin | Year: 2011

Surveys in W Poland during 2004-2010 show a 73% decline in the Eurasian Curlew population since 1980- 1996. Most curlew breed along the valleys of the big rivers. The most likely reasons for the decline are loss and degradation of habitat arising from modern agricultural practices, land drainage, development and afforestation and an increase in ground predators.

Rosin Z.M.,Adam Mickiewicz University | Skorka P.,Jagiellonian University | Wylegala P.,Polish Society for Nature Protection Salamandra | Krakowski B.,Polish Society for Nature Protection Salamandra | And 4 more authors.
Journal of Ornithology | Year: 2012

It 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 crops. Knowledge of the habitat selection of migrating birds is important from both a conservation and agro-economic point of view. We investigated the habitat preferences of three common migrating goose species: White-fronted Goose Anser albifrons, Bean Goose A. fabalis and Greylag Goose A. anser during the autumn of 2009 in western Poland. A total of 24 flocks of these species were identified. Geese preferred large, elevated fields that were remote from forests and human settlements but in close proximity to a lake. Geese selected maize stubbles and avoided winter cereals. They selected sites in landscapes with a lower diversity of crops. Flock size was negatively correlated with the proportion of pastures in the landscape, but it increased with field size, distance to forest and distance to town. Our results are in contrast with the paradigm that less intensive farmland positively influences habitat use by birds during foraging. We advise the delayed ploughing of stubbles with the aim of creating appropriate foraging habitats for geese and minimizing damage to cereal crops. © The Author(s) 2011.

Myczko L.,University of Life Sciences in Poznań | Rosin Z.M.,Adam Mickiewicz University | Skorka P.,University of Life Sciences in Poznań | Wylegala P.,Polish Society for Nature Protection Salamandra | And 4 more authors.
Ecological Research | Year: 2013

The knowledge and conservation of diminishing valuable habitats in agricultural landscapes are of key importance in saving declining farmland biodiversity. One of these habitats is the traditional orchard whose role in supporting birds is still poorly known, especially in winter. We counted birds in 106 orchards differing in management intensity (abandoned, traditional, and intensive) during December 2009 and January 2010 in Wielkopolska, western Poland and measured site characteristics and composition of surrounding landscapes for every orchard. Old abandoned and traditionally managed orchards had significantly higher bird species richness than intensive ones. Irrespective of orchard type, bird species richness as well as density were positively influenced by the cover of unmown herb layer in orchards and tree diversity. Tree and fruit densities positively affected bird species richness and density mainly in abandoned orchards while in other orchard types the effect of these variables was less pronounced. Land cover diversity in a landscape had a positive effect on species richness and density mostly in abandoned orchards and we believe that this effect reflects the elevated utilization of such orchards by birds from the surrounding landscape. Thus, abandoned, as well as traditionally managed orchards seems to be especially important habitats that offer food source and refuge for wintering birds and should be protected. We propose to diversify fruit production by planting various tree species, leaving part of the herb layer unmown and several trees unharvested in intensive orchards in order to improve suitability of modern orchards for birds. © 2013 The Author(s).

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