Polish Society for Nature Conservation Salamandra

Poznań, Poland

Polish Society for Nature Conservation Salamandra

Poznań, Poland
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Zmihorski M.,Swedish University of Agricultural Sciences | Zmihorski M.,Polish Academy of Sciences | Lawicki L.,West Pomeranian Nature Society | Marchowski D.,West Pomeranian Nature Society | And 2 more authors.
Acta Ornithologica | Year: 2016

The Polish breeding population (3,200-3,250 males) of the globally threatened Aquatic Warbler Acrocephalus paludicola represents almost 25% of the global population. Except for the relatively stable large population in the Biebrza valley in north-east Poland less is known about population trends of peripheral populations in western, central and south-eastern regions of the country and whether trends differ depending on region. We investigated the long-term population dynamics in 38 small populations between 1969-2013 in the four Polish regions. Summarizing the trends of all small populations of Aquatic Warblers showed a significant decline in total number of individuals and declining number of populations over time. However, population trends were distinctly different in the different regions, with stable dynamics in south-east, moderate decline in north-east and sharp decline in the central and western regions. During the study period 19 out of 38 populations became extinct (11 populations in the western region, two in central region, four in north-east region and none in the south-east region). Five of these populations were later recolonised thus suggesting a pattern of metapopulation dynamics. To mitigate the negative trends and increased risk of local and regional extinction in the western and central parts of Poland effort should be put to increasing dispersal among populations by increasing the number of stepping stone patches between the viable large eastern populations and the smaller central and western ones.

Mateju J.,Charles University | Mateju J.,Agency for Nature Conservation and Landscape Protection of the CR | Ricanova S.,University of South Bohemia | Ricanova S.,Academy of Sciences of the Czech Republic | And 5 more authors.
European Journal of Wildlife Research | Year: 2012

Reintroductions are considered an important part of the action plans and recovery strategies of endangered ground squirrel species, but so far little is known about their proper methodology. We collected primary data on 12 European ground squirrel reintroduction projects carried out at 14 localities in the Czech Republic, Slovakia and Poland since 1989. We focused on seven methodological aspects of each reintroduction: selection of release site, method of releasing, date of releasing, origin of released animals, total number of released animals, mean number of released animals per season and reintroduction site management. The method of releasing was found to be the key factor in determining the settlement of animals at the target locality. Only soft releasing methods, i. e. the use of enclosures and/or artificial burrows, ensure that animals remain at the target locality. The other factors significantly determining reintroduction success are the number of released animals per season (at least 23 animals required) and the total number of released animals (a minimum of 60 individuals). Long-term management of the site and regular monitoring of the newly established population are necessary. Our recommendations, based on experience with the successes and failures of previous reintroductions, could largely improve the efficiency of future reintroductions of highly endangered species. © 2011 Springer-Verlag.

Jankowiak L.,University Of Szczecin | Skorka P.,Polish Academy of Sciences | Lawicki L.,West Pomeranian Nature Society | Wylegala P.,Polish Society for Nature Conservation Salamandra | And 3 more authors.
Ecological Research | Year: 2015

Roosting site selection by geese is a key factor for survival during migration and wintering. Birds should select sites that minimize thermoregulation demands and predation risk, and maximize foraging efficiency. We used data on the spatial location of geese roosting sites in Poland to compare landscape features and the conservation status of roosting and non-roosting sites at different scales ranging from 5 to 50 km. Logistic regression revealed that the sites selected by geese had larger waterbody size than non-selected sites, and surrounded by a smaller coverage of woodland at the scale of 50 km. They also were more often Natura 2000 sites. The most important factors positively affecting the abundance of geese were the size of waterbody and low coverage of artificial area (mostly urban) within a 50 km radius. Several further factors also influenced the roosting site selection. Regardless to the scale a large coverage of farmland (mostly rapeseed) positively affected roosting geese whereas forest coverage had a negative effect. Spatial hierarchical clustering analysis showed that the roosting sites were densely located in regions characterized by the most intensive agriculture. Farming intensity therefore seems to increase the abundance of geese, and consequently, to increase a possible conflict between goose conservation and food production. To alleviate the conflicts we delineated areas that may be most affected and where the conservation measures should be implemented first. As geese respond to environmental factors at different spatial scales this scale-dependency should be included in the conservation and management of goose populations. © 2015, The Ecological Society of Japan.

Przybylska K.,University of Life Sciences in Poznań | Haidt A.,University of Life Sciences in Poznań | Myczko L.,University of Life Sciences in Poznań | Ekner-Grzyb A.,Adam Mickiewicz University | And 17 more authors.
Acta Ornithologica | Year: 2012

Urbanization is the most dynamic phenomenon worldwide and many species colonize urban environment. Some of these species became so abundant in towns and cities that they are regarded pests, are human health hazard, causes damage to buildings and affect other urban species. Therefore, it is important to understand how such successful colonizers utilize urban environment and which factors affects their population densities. One of such species is the most common urban pest bird in the world, the Feral Pigeon Columba livia var. domestica. The aim of this study was to investigate how local food resources and the composition of the urban landscape affects densities of Feral Pigeon in the city of Poznań (Western Poland). Three counts were made in summer 2010 in 60 0.5 km × 0.5 km plots (25 ha) distributed randomly across residential areas in the city. The density of pigeons showed significant spatial autocorrelation, both positive and negative one. The density of pigeons was highest in plots with more tall buildings (over four floors), a large number of human-related food resources, schools, and a high proportion of green space. The density of pigeons was lower in plots with a higher density of streets and located further from the city centre. The solution to the pigeon problem appears to be to plan residential areas with low-rise buildings. To control the number of pigeons in urban areas, we suggest preventing access to local food resources by using litter-bins that are inaccessible to animals. The public should also be educated to behave appropriately towards pigeons and refrain from feeding them intentionally.

Skorka P.,Polish Academy of Sciences | Sierpowska K.,University of Life Sciences in Poznań | Haidt A.,Forest Research Institute | Myczko L.,University of Life Sciences in Poznań | And 15 more authors.
Current Zoology | Year: 2016

Every species has certain habitat requirements, which may be altered by interactions with other co-occurring species. These interactions are mostly ignored in predictive models trying to identify key habitat variables correlated with species population abundance/occurrence. We investigated how the structure of the urban landscape, food resources, potential competitors, predators, and interaction between these factors influence the abundance of house sparrow Passer domesticus and the tree sparrow P. montanus in sixty 25 ha plots distributed randomly across residential areas of the city of Poznań (Poland). The abundance of the house sparrow was positively correlated with the abundance of pigeons but negatively correlated with human-related food resources. There were significant interaction terms between abundances of other urban species and habitat variables in statistical models. For example, the abundance of house sparrow was negatively correlated with the abundance of corvids and tree sparrows but only when food resources were low. The abundance of tree sparrows positively correlated with density of streets and the distance from the city center. The abundance of this species positively correlated with the abundance of corvids when food resources were low but negatively correlated at low covers of green area. Our study indicates that associations between food resources, habitat covers, and the relative abundance of two sparrow species are altered by the abundance of other urban species. Competition, niche separation and social facilitation may be responsible for these interactive effects. Thus, biotic interactions should be included not only as an additive effect but also as an interaction term between abundance and habitat variables in statistical models predicting species abundance and occurrence. © The Author (2016).

Gottfried I.,Wrocław University | Gottfried T.,Polish Society of Wildlife Friends pro Natura | Fuszara E.,University of Warsaw | Fuszara M.,Center for Ecological Research in Dziekanow Lesny in liquidation | And 3 more authors.
North-Western Journal of Zoology | Year: 2015

The paper presents breeding records of the barbastelle (Barbastella barbastellus) from the whole current territory of Poland, both published data from papers and conference abstracts, and unpublished data collected by the authors. Up to 1999, known locations of maternity colonies and sites where young or lactating females had been caught, were assigned to only five forest regions or 16 Universal Transverse Mercator (UTM) squares. The number of such sites has significantly increased since 2000. Breeding sites of barbastelle have now been recorded in all Polish forest regions in 68 UTM squares. Most of the barbastelle sites were located in forest stands with high proportions of beech and oak (65%, N=46), and/or old-growth forest (over 32%, N=23). The highest elevation of a breeding site was at about 500 m.a.s.l. This paper summarises new records of maternity colonies of barbastelles for the first time, as a preliminary step to develop a more comprehensive conservation and monitoring plan for this near-threatened species. © NwjZ, Oradea, Romania, 2015.

Gorecki M.T.,University of Life Sciences in Poznań | Juszkiewicz A.,University of Life Sciences in Poznań | Graclik A.,University of Life Sciences in Poznań | Kala B.,Polish Society for Nature Conservation Salamandra
Zoo Biology | Year: 2012

European souslik (Spermophilus citellus) is an endangered species being the subject of reintroduction plan in some European countries, including Poland. It is important to obtain data about behavior of reintroduced species, especially a reaction to captivity of specimens prepared to release. The aim of this study was to evaluate influence of human exposure on sousliks behavior. Observed animals were kept in Poznań zoo in three enclosures. Two of them (called "high noise") were in part of the zoo available to the visitors, whereas one ("low noise") was in part closed for them. In "high noise" enclosures sousliks spent more time outside burrows and more specimens were present above ground. They also ate and ran more frequently in "high noise" enclosure, whereas emitted loud voices more often in the "low noise" one. In all enclosures more animals were present above grounds in absence of humans. Time spent by one souslik above ground was positively significantly correlated with the number of sousliks outside burrows. European sousliks observed in this study were used to humans and were less vigilant if they were exposed to permanent humans presence, but they did not become tamed and behave in a way similar to free living animals. © 2011 Wiley Periodicals, Inc.

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