Sabina Nowak

Sabina Nowak
University of Warsaw | UW · Department of Ecology, Faculty of Biology

PhD

About

151
Publications
82,629
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3,175
Citations
Additional affiliations
September 1996 - September 2021
Association for Nature "Wolf"
Position
  • CEO

Publications

Publications (151)
Preprint
The Sicilian wolf represented the only population of wolves living on a Mediterranean island until the first half of the twentieth century (1930s-1960s) 1–7 . Previous studies hypothesised that they remained isolated from mainland wolves from the end of the Last Glacial Maximum (LGM) 8,9 , until human persecutions led them to extinction 1–7 . There...
Article
Full-text available
We studied diet and prey preferences of the Eurasian lynx (Lynx lynx) inhabiting south-east Poland, based on kills found during GPS-GSM telemetry and opportunistic winter tracking. Among 64 lynx kills were roe deer (Capreolus capreolus) (91%), red deer (Cervus elaphus) (3%) and brown hare (Lepus europaeus) (6%). From the ungulate community, lynx se...
Book
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Teczka edukacyjna dla dzieci o wilku, rysiu i niedźwiedziu brunatnym. Educational package for kids about wolf, lynx and brown bear.
Article
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We estimated numbers of Eurasian lynx in the Natura 2000 site Puszcza Romincka PLH280005 based on tracking and camera trapping conducted in 2020-2021 and information gathered from Border Guards and foresters in 2019-2020. We recorded presence of at least four individuals, and confirmed reproduction. Lynx frequently occurred on areas along Poland-Ru...
Article
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During intense snow-tracking and camera trapping conducted in small-scale forests (<50 km2) at the border between Masurian Lowland and Masurian Lakeland (northeastern Poland) in 2021, we confirmed presence of at least two individuals of the Eurasian lynx Lynx lynx. Our observations highlights importance of small-scale forests for this species and i...
Article
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In central Europe, wolves Canis lupus prey on wild ungulates - main game species and occasionally kill livestock. The recovery of wolf population across the continent coincides with an increasing incidence of illegal killing, which level remains unknown. We analysed the illegal killing of wolves in Poland, where the species is strictly protected si...
Article
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African swine fever (ASF), caused by a DNA virus (ASFV) belonging to genus Asfivirus of the Asfarviridae family, is one of the most threatening diseases of suids. During last few years, it has spread among populations of wild boars and pigs in countries of Eastern and Central Europe, causing huge economical losses. While local ASF occurrence is pos...
Article
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The population of Eurasian lynx in the Carpathian Mountains is one of the largest in Europe, with a total population size of ~2,100–2,400 individuals. However, the status of the species in the Carpathians was based solely on “expert opinions”, while relevant scientific data were restricted. Recent research indicated that these figures are not relia...
Article
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Aim The aim of the study was to assess the effect of changes in population size and migration on variation in functional immunity genes in the previously bottlenecked population of the grey wolf, Canis lupus. Location Eastern/Central Europe: Poland, Czechia, Slovakia. Methods We genotyped 7 immunity genes: three MHC-DLA genes (dog leukocyte antig...
Article
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Understanding factors and mechanisms causing large carnivore aggression towards people is crucial for their conservation in modern human-dominated landscapes. We present detailed descriptions of wolf attacks on people in early summer 2018 in two areas of Poland, analysis of behaviour, fitness and origin of individuals responsible for the attacks an...
Article
Earlier studies have indicated that consumption of beavers Castor ssp. by wolves Canis lupus varies seasonally and is influenced by rainfall affecting water levels. Therefore, to determine whether these carnivores prey more often on beavers in drier seasons and years, we assessed the diet of wolves in Wigry National Park (NE Poland) by analysing 30...
Article
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The gray wolf Canis lupus range in central Europe is dynamically expanding, reconnecting previously isolated populations. Thus, a recent paper has proposed to merge the current Baltic and Central European (CE) wolf management units, which are no longer isolated by distance. However, recent genetic findings indicate that these two populations are no...
Article
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Wildlife crossing structures (WCSs) enhance connectivity between habitats of wild animals fragmented by fenced motorways, but factors affecting their use by targeted species remain understudied, particularly in areas recently recolonized by large carnivores. We investigated the use of WCS-6 overpasses (width 30-45m), 5 large underpasses (width 33-1...
Book
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Poradnik omawia metody zabezpieczania inwentarza przed atakami wilków: psy stróżujące, ogrodzenia, pastuchy elektryczne i fladry. Prezentuje dobre praktyki gospodarskie minimalizujące zagrożenia dla inwentarza ze strony drapieżników i opisuje procedurę uzyskiwania odszkodowań. Zawiera również podstawowe informacje na temat ekologii wilka w Polsce....
Article
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Raccoons Procyon lotor were recorded by camera traps in the special area of conservation of the Natura 2000 network “Jeziora Gościmskie” (PLH080036) in north-eastern Poland, in August 2019.
Article
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Local extinction and recolonization events can shape genetic structure of subdivided animal populations. The gray wolf (Canis lupus) was extirpated from most of Europe, but recently recolonized big part of its historical range. An exceptionally dynamic expansion of wolf population is observed in the western part of the Great European Plain. Nonethe...
Article
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An adult raccoon Procyon lotor was recorded by the camera traps in the valley of the Świerszcz stream in southern part of the Roztocze National Park (S Poland), February 19, 2019.
Article
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According to the Habitats Directive member states of the European Union are obligated to undertake surveillance of the conservation status of species with particular regard to priority species, such as the wolf Canis lupus. However monitoring of populations inhabiting vast areas is very diffi cult. In this paper authors presented advantages and dis...
Article
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Since the mid-twentieth century wolves were absent or rare in Western Poland (hereinafter WPL). Several years after they became strictly protected in the whole country (1998), wolves originating from the source population in eastern Poland started to re-settle the vast forests of WPL. This paper is a review of studies conducted in 2001-2016 on spon...
Article
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Knowledge about the distribution of Eurasian lynx in Poland is still insuffi cient. We updated information on the occurrence of lynx in the Roztocze and the Solska Forest based on data collected in 2010-2019, obtained by tracking, camera trapping, direct observations and GPS/GSM telemetry. The presence of lynx has been confi rmed in 17 squares of t...
Article
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We used 13 autosomal microsatellite loci to evaluate the genetic diversity in the wolf (Canis lupus) population inhabiting Tatra Mountains along Polish-Slovak border. From samples of biological material collected in 2017- 2018, we identifi ed genotypes of 42 wolves. All studied loci were polymorphic, with mean number of alleles being Na = 5.077 and...
Article
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Wildlife crossing structures are the best solution to minimize the barrier eff ect of roads and railways on animal populations. However, to assess and compare their use by animals, they should be properly monitored. This article presents a methodology for monitoring of wildlife crossing structures use by animals based on two methods: registration o...
Article
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Our goal was to asses importance of beaver Castor fi ber in the wolf Canis lupus diet in the Wigry National Park (WNP), NW Poland. We compiled published data and results of own analyses of wolf scats collected in 2017-2018. We found that in WNP wolves prey mainly on wild ungulates, but beaver was an important additional prey accounting for 10.9% an...
Article
We assessed the diet of adult wolves and their pups in an area recently recolonized by the species in northwestern Poland, through the analysis of scats. Adult wolves preyed mostly on wild ungulates (94.8% of food biomass), with roe deer (45.0%) and red deer (37.8%) being the most important food sources, and occasionally on beavers (5.6%). Pups ate...
Article
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Studies on the occurrence of the Eurasian lynx Lynx lynx in Poland revealed that after over two decades of species protection its range of permanent occurrence has still not substantially extended westwards. While single individuals have been recorded in some forests, lynx reproduction is still restricted to central Poland, where likely occur the d...
Article
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Tracking, camera trapping and – in case of wolves – non-invasive genetic sampling based on 13 microsatellite loci, were used to determine the number of wolves and lynx in Roztocze National Park (south-eastern Poland). There were two wolf family groups breeding in the national park, which size accounted for 4-7 individuals. There were also four lynx...
Article
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The diet of wolves Canis lupus L. was assessed in the Wigry National Park in North-Eastern Poland, which overlaps with the Natura 2000 site "Ostoja Wigierska". The content of a total of 149 scat samples was collected in 2017 and analysed in order to determine dietary composition. Wolves primarily feed on wild ungulates, which make up 75.4% of food...
Article
Full-text available
The diet of wolves Canis lupus L. was assessed in the Wigry National Park in North-Eastern Poland, which overlaps with the Natura 2000 site “Ostoja Wigierska”. The content of a total of 149 scat samples was collected in 2017 and analysed in order to determine dietary composition. Wolves primarily feed on wild ungulates, which make up 75.4% of food...
Article
Full-text available
The wolf population has flourished across the whole of Poland since its strict protection in 1998. Wolves are also protected within the national parks and Natura 2000 sites that secure their habitats. Precise data on the status of local populations are required to plan conservation actions. For this reason, we applied camera trapping and non-invasi...
Article
Population fragmentation represents a leitmotif of conservation biology, but the impact of population reconnection is less well studied. The recent recolonization of large carnivores in Europe is a good model for studying this phenomenon. We aim to show novel data regarding distribution and population genetic structure of the grey wolf in Central E...
Article
Monitoring of the wolf Canis lupus is a demanding task as it lives in low densities, utilizes vast home ranges and disperses over large areas. These factors make obtaining accurate data about population parameters over the whole distribution area of the species impossible. Thus detailed local studies on socio-spatial organization are essential to c...
Article
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If protected areas are to remain relevant in our dynamic world they must be adapted to changes in species ranges. In the EU one of the most notable such changes is the recent recovery of large carnivores, which are protected by Natura 2000 at the national and population levels. However, the Natura 2000 network was designed prior to their recent rec...
Data
List and details of all SACs in Poland with ≥ 1 km2 of wolf habitat. Sites are sorted by population, and then by the amount of wolf habitat they protect. (DOCX)
Data
Statistical significance of the Mann-Whitney U-tests for the pairwise comparisons of protected habitat area sizes between wolf populations in Poland. (DOCX)
Article
Aim To compare predictions of the habitat suitability model (HSM) for wolves Canis lupus in Poland with actual wolf distribution in western Poland after 15 years of recolonization. Location Western Poland (WPL, ca. 136,000 km2), west of the 18°48′E meridian. Methods Data on wolf occurrence (8,057 records) were gathered in 2001–2016. Wolf presenc...
Conference Paper
Full-text available
At the turn of the 21st century, restriction of hunting and legal protection paved the way for natural recovery of the wolf Canis lupus in Europe. Wolves recolonizing central Europe – mainly western Poland and eastern Germany – originate from north-eastern Poland, where they inhabit forests sparsely populated by humans. In contrast, the areas being...
Article
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Despite the fact that only parts of the Białowieża Forest are protected as a national park and nature reserves, the forest is nevertheless as a whole considered a UNeScO Natural Heritage Site, Biosphere reserve and an integrated Natura 2000 site. in the presently ongoing debate on the conservation priorities regarding the natural value of this fore...
Article
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We investigated the number, distribution and human-caused mortality of wolves in western Poland during different management regimes. During intensive eradication (1951-1974) at least 49 wolves were exterminated (on average 2.6 wolves per year), and the species was reported in up to 4 forests per year (mean 1.7), but most of the family groups bred o...
Chapter
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Grey wolf (Canis lupus) has recovered its population in Kysce and Orava region in the Western Carpathians, Slovakia, in 1 980’s, but the species has not been locally studied in detail, although it is a subject of legal hunting in the region. Field mapping of tracks and scat, howling records, extensive camera trapping and genetic monitoring was used...
Article
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Despite the fact that only parts of the Białowieża Forest are protected as a national park and nature reserves, the forest is nevertheless as a whole considered a UNESCO Natural Heritage Site, Biosphere Reserve and an integrated Natura 2000 site. In the presently ongoing debate on the conservation priorities regarding the natural value of this fore...
Article
Full-text available
Transport infrastructure is a critical threat to populations of animals; wildlife crossing structures are therefore commonly applied as a measure to sustain animal movements across roads and railways. Research on the efficiency of crossing structures is needed to provide scientific underpinnings to conservation efforts. Year-round monitoring of a l...
Article
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This article summarizes the results of studies on the ecology of the European badger (Meles meles) conducted in the Western Carpathians (S Poland) from 2002 to 2010. Badgers inhabiting the Carpathians use excavated setts (53%), caves and rock crevices (43%), and burrows under human-made constructions (4%) as permanent shelters. Excavated setts are...
Technical Report
Full-text available
W ostatnich miesiącach odżyły wieloletnie spory pomiędzy zwolennikami ingerencji w naturalne procesy zachodzące w lasach Puszczy Białowieskiej oraz prowadzenia w niej gospodarki leśnej a rzecznikami traktowania Puszczy jako lasu unikalnego, bezcennego skarbu natury, postulującymi zwiększenie zakresu jego ochrony. Domagając się utrzymania obecnie ob...
Article
Since the mid-twentieth century, under different management regimes (over 20 years of a wolf control program followed by 20 years of trophy hunting), wolves were absent or rare in Western Poland (hereinafter WPL). They became strictly protected in the whole country in 1998 and started to re-settle the vast forests of WPL, far (376 ± 106.5 km) from...
Technical Report
Full-text available
Climate changes also affect European forests. Some species of trees, like Norway spruce Picea abies, are sensitive to high temperatures and water deficiency. After having been weakened by summer droughts they become vulnerable to more intensive colonization of tree-eating insects. Spruce trees which become infested by the European spruce bark beetl...
Article
Full-text available
Following protection measures implemented since the 1970s, large carnivores are currently increasing in number and returning to areas from which they were absent for decades or even centuries. Monitoring programmes for these species rely extensively on non-invasive sampling and genotyping. However, attempts to connect results of such studies at lar...
Technical Report
Full-text available
Article 2(2016): 1 Dispute over the future of the Białowieża Forest: myths and facts. A voice in the debate [English version of the article published in Polish as Wesołowski T. et al. 2016. Spór o przyszłość Puszczy Białowieskiej: mity i fakty. Głos w dyskusjiwww.forestbiology.org (2016), Article 1: 1-12.
Technical Report
Full-text available
Article
p>Following protection measures implemented since the 1970s, large carnivores are currently increasing in number and returning to areas from which they were absent for decades or even centuries. Monitoring programmes for these species rely extensively on non-invasive sampling and genotyping. However, attempts to connect results of such studies at l...
Article
Full-text available
Net catching and survey of roosts were conducted from 1992 to 2014 to be used together with the previously published data to assess the species composition of the bat fauna in the Silesian Foothills (ca. 500 km2), situated in the Western Carpathians (southern Poland). The region is inhabited by the following 20 species of bats: Rhinolophus hipposid...
Technical Report
Full-text available
Germany and Poland share a joint wolf population ‐ the Central European population. For a joint assessment of the status of transboundary populations, the underlying data must be comparable. In 2012, the members of the Polish‐German wolf working group decided to commission the development of joint monitoring standards as a prerequisite to allow a r...