Martin Váňa's scientific contributions

Publications (15)

Article
Full-text available
Camera-trapping and capture-recapture models are the most widely used tools for estimating densities of wild felids that have unique coat patterns, such as Eurasian lynx. However, studies dealing with this species are predominantly on a short-term basis and our knowledge of temporal trends and population persistence is still scarce. By using system...
Article
Full-text available
European wildcat (Felis silvestris) has been a missing species in the Czech Republic and Western Slovakia since the 1960s.Development of camera trapping techniques in wildlife research has resulted since 2012 in the new records of European wildcat in the West Carpathians in the Czech-Slovak borderland. Here we present the data collected during the...
Article
Full-text available
In the last decades, large carnivores – the grey wolf (Canis lupus), Eurasian lynx (Lynx lynx) and brown bear (Ursus arctos), and to a certain extent also the wildcat (Felis silvestris) – have increased their distribution ranges throughout Europe. Monitoring of their current distribution and population trends in the Czech Republic is crucial for th...
Article
Full-text available
In the last decades, large carnivores – the grey wolf ( Canis lupus ), Eurasian lynx ( Lynx lynx ) and brown bear ( Ursus arctos ), and to a certain extent also the wildcat ( Felis silvestris ) – have increased their distribution ranges throughout Europe. Monitoring of their current distribution and population trends in the Czech Republic is crucia...
Data
Comparison of the eight competing models built to explore how the dynamics of wolves in the Beskydy area was influenced by prey and wolf hunting in the Orava core area using hunted ungulate biomass (kg/100 ha). Models are ranked from the best candidate model (lowest AIC value). N = number of parameters (PDF)
Data
Calculation of estimated ungulate abundance and biomass. (PDF)
Article
Full-text available
The conservation and management of wolves Canis lupus in the periphery of their distribution is challenging. Edges of wolf distribution are characterized by very few and intermittent occurrences of individuals, which are modulated by multiple factors affecting the overall population such as human-caused mortality, management targets and food availa...
Data
Parameter estimates (± SE) for the rest of models explaining the dynamics of wolves in the Beskydy area and showing ΔAIC <2. (PDF)
Article
Full-text available
Non-invasive monitoring large carnivore populations in the Czech Republic is being conducted by various methods using camera traps, snow-tracking and genetic analysis of scat or hairs. The preliminary results from the Beskydy /Keskids Mts. and Javorníky Mts in the Czech–Slovakia borderland show stable (reproducing) population of Eurasian lynx (Lynx...
Data
Shape files of current and historical distribution maps of large carnivore species in Europe. Also available from http://datadryad.org/resource/doi:10.5061/dryad.986mp
Article
Full-text available
The conservation of large carnivores is a formidable challenge for biodiversity conservation. Using a data set on the past and current status of brown bears (Ursus arctos), Eurasian lynx (Lynx lynx), gray wolves (Canis lupus), and wolverines (Gulo gulo) in European countries, we show that roughly one-third of mainland Europe hosts at least one larg...
Book
Full-text available
The book summarizes the current knowledge about Eurasian lynx (Lynx lynx), grey wolf (Canis lupus) and brown bear (Ursus arctos) – three species of large carnivores occurring in the Czech Republic and together only in the Carpathian part of Moravian and Silesian regions. Lynx and wolves started to colonize also other areas in the Czech Republic, su...
Article
Full-text available
Occurrence of Eurasian lynx (Lynx lynx, Linnaeus 1758) was studied in the broader area of the Beskydy Protected Landscape Area (PLA) in the West Carpathians. The monitoring of the species was based on detection of indirect signs of presence (tracks, scat, remains of prey) found during the monitoring events conducted by trained volunteers of Friends...
Technical Report
Full-text available
Large carnivores (bears Ursus arctos, wolves Canis lupus, lynx Lynx lynx and wolverines Gulo gulo) are among the most challenging group of species to maintain as large and continuous populations or to reintegrate back into the European landscape. Political, socioeconomic and society changes challenge past management approaches in some of the large...

Citations

... Romania harbors the largest brown bear population in Europe (outside European Russia; Kaczensky et al., 2012). While national estimates suggest densities of 7 bears/100 km 2 (Bombieri et al., 2019), some areas in the Eastern and Southern Romanian Carpathians can reach high densities of 12.4 (8.6-16.3) ...
... The BBA lynx population has a high turnover of adult and subadult lynx, similarly to its neighbours -the Western Carpathian and the Alpine lynx populations Duľa et al. 2021;Breitenmoser-Würsten et al. 2007). Specifically, 23% of adults and 44% of subadults vanish every year, especially in the outskirt part of the BBA population's distribution ). ...
... There is a high level human activity in the study area, including forestry, game hunting, tourism and recreational activities (Kutal et al. 2016). Studies have documented lynx and wolf reproduction and only sporadic presence of brown bear (Kutal et al. 2017;Duľa et al. 2021, author's unpublished data). The ungulate community present in the study area includes red deer (Cervus elaphus), roe deer (Capreolus capreolus), wild boar (Sus scrofa) and sporadic occurrence of fallow deer (Dama dama) and mouflon (Ovis musimon). ...
... Al� though single individuals disperse through� out the entire country, lynx reproduction is still restricted to Kampinos National Park and its adjacent forests in central Poland (Fig. 2, SOM F1). The Sudety Mountains, the only other area where lynx have often �een recorded, although without any convincing evidence of reproduction (Flousek et al. 2014, Mikusek et al. 2018, is directly connected with areas permanently inha�ited �y the lynx in the Czech Repu�lic, which have relatively good connectivity with the Carpathian lynx population (Kutal et al. 2017). Studies using telemetry have revealed that lynx have the a�ility to disperse across large distances. ...
... Forest covers the majority of the Beskydy Mts. and is dominated by Norway spruce (Picea abies). There is a high level human activity in the study area, including forestry, game hunting, tourism and recreational activities (Kutal et al. 2016). Studies have documented lynx and wolf reproduction and only sporadic presence of brown bear (Kutal et al. 2017;Duľa et al. 2021, author's unpublished data). ...
... Dôležité migračné trasy boli identifikované smerom na severozápad do Moravsko-Szlieských Beskýd a severozápad Čiech (Bojda et al. 2010, Kutal et al. 2012, Kutal & Suchomel 2014a a juhozápad do Bielych a Malých Karpát (Hell & Slamečka 1996). Ďalšia migračná trasa prebiehala cez Žitavskú pahorkatinu smerom na severozápadné Maďarsko, avšak vzhľadom na súčasný stav infraštruktúry je jej funkcia pravdepodobne veľmi obmedzená, alebo prerušená (Hell & Slamečka 1996, Kubala 2014. ...
... Information, Table 1). Fig. 1 a Portugal's location (shaded) in western Europe, b limits of the study area (rectangle) within central-north Portugal, c zoom-in on the study area showing areas of permanent and sporadic wolf presence (adapted from Chapron et al. (2015)) and geographic location of the sampled attacks (circles) None of our predictors presented high collinearity (i.e. VIF ≥ 5) and, consequently, all were included in our model selection procedure. ...
... Among the biogeographic regions, the Palearctic shows the smallest decrease, with an average decline of the monitored populations of 24%, owing to several conservation measures which avoided severe declines (Pereira et al. 2010;Living Planet Index 2022). Indeed, in the last 20 years, this area hosted several species' comeback, thanks to focused management actions and international regulations: reintroduction programs succeeded, such as for the European bison (Bison bonasus), the red deer (Cervus elaphus), the alpine ibex (Capra ibex) (Saether et al. 2002;Pucek et al. 2004;Apollonio et al. 2010) and for some European carnivores (Chapron et al. 2014). When properly planned, reintroductions have thus proven to give positive results (Frey and Walter 1989;Johnson and Cushman 2007;Linnell et al. 2009), especially when applied to keystone or umbrella species (Linnell et al. 2009;Ripple and Beschta 2012). ...
... A grid of 2.7 × 2.7 km was suggested (Laass 1999), which later became a reference grid for other camera-trapping deigns (Weingarth et al. 2012(Weingarth et al. , 2015, although not everywhere. For example, grid of 2.5 × 2.5 km is used in Slovakia (Kubala et al. 2017), 10 × 10 km in Czech Republic (Kutal et al. 2013), and 3 × 3 in Harz, Germany (Middelhoff & Anders 2018). For reliable density estimates, Weingarth et al. (2015) recommend to prolong the period from late summer to early winter and space cameras 2.5-3 km apart in smaller areas (~300 km 2 ) and 5-6 km in larger ones (~750 km 2 ). ...