How does parental role influence the activity and movements of breeding wolves?

Tsunoda, Hiroshi; Gula, Roman; Theuerkauf, Jörn; Rouys, Sophie; Radler, Stephan; Pirga, Bartosz; Eggermann, Julia; Brzezowska, Barbara

doi:10.1007/s10164-008-0106-z

Cited by 15 publications

(11 citation statements)

References 21 publications

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“…1). He then returned to the Przemyml-Dynów Foothills and Wnally settled 30 km north of the capture site, where he successfully mated in the subsequent 2 years (Tsunoda et al 2008). During his dispersal he covered a total area of 1,435 km 2 (MCP) and travelled a distance of 230 km.…”

Section: Resultsmentioning

confidence: 99%

Evidence of wolf dispersal in anthropogenic habitats of the Polish Carpathian Mountains

2009

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In the course of their maturation, most young wolves leave their natal pack and disperse in search for mating partners, improved food availability and new territories. We investigated whether this dispersal is aVected by anthropogenic infrastructure in a 5,000 km² area of the eastern region of the Polish Carpathian Mountains occupied by wolves. A radio-collared male wolf covered 230 km while dispersing through forested hills and densely populated valleys. To test if such dispersal is common in the population we analysed by microsatellite genotyping 39 samples taken from live-trapped wolves or wolves found dead in the study area. Although the obtained genotypes were assigned to diVerent clusters in Bayesian tests, we could not ascribe this structure to landscape features, but rather to shared ancestry of wolf individuals found in distant locations. Moreover, we could not detect a spatial genetic structure in the wolf population, indicating a random occurrence of genotypes within the study area. Observation of the dispersing wolf and the absence of spatial genetic structure imply that wolves are still able to roam the entire area despite high densities of roads and a dense human population. Thus, we concluded that the existing anthropogenic infrastructure does not restrict wolf dispersal in the area and the studied wolves represent a coherent part of the Polish Carpathian wolf population.

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Section: Resultsmentioning

confidence: 99%

Evidence of wolf dispersal in anthropogenic habitats of the Polish Carpathian Mountains

2009

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“…However, the instantaneous search rate may increase without increasing kill rates if prey saturate the landscape (Holling 1959b). Alternatively, wolves may use linear features to facilitate movement during territory monitoring, scent marking, travelling to and from rendezvous sites, among habitat patches, or den sites, without influencing hunting behaviours (Mech & Boitani 2003;Tsunoda et al 2009;Giuggioli, Potts & Harris 2011). While movement rates increased when wolves used linear features, the time spent on these features was low, potentially limiting their effect on behaviours such as hunting.…”

Section: Discussionmentioning

confidence: 99%

Faster and farther: wolf movement on linear features and implications for hunting behaviour

Dickie

Serrouya

McNay³

et al. 2016

Journal of Applied Ecology

241

314

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Summary Predation by grey wolves Canis lupus has been identified as an important cause of boreal woodland caribou Rangifer tarandus caribou mortality, and it has been hypothesized that wolf use of human‐created linear features such as seismic lines, pipelines and roads increases movement, resulting in higher kill rates. We tested if wolves select linear features and whether movement rates increased while travelling on linear features in north‐eastern Alberta and north‐western Saskatchewan using 5‐min GPS (Global Positioning System) locations from twenty‐two wolves in six packs. Wolves selected all but two linear feature classes, with the magnitude of selection depending on feature class and season. Wolves travelled two to three times faster on linear features compared to the natural forest. Increased average daily travelling speed while on linear features and increased proportion of steps spent travelling on linear features increased net daily movement rates, suggesting that wolf use of linear features can increase their search rate. Synthesis and applications. Our findings that wolves move faster and farther on human‐created linear features can inform mitigation strategies intended to decrease predation on woodland caribou, a threatened species. Of the features that can realistically be restored, mitigation strategies such as silviculture and linear deactivation (i.e. tree‐felling and fencing) should prioritize conventional seismic lines (i.e. cleared lines used for traditional oil and gas exploration) and pipelines, as they were selected by wolves and increased travelling speed, before low‐impact seismic lines.

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“…The radiotelemetry fixes of the wolf were collected from 2003 to 2005 in the Bieszczady Mountains, Poland (Gula 2008;Theuerkauf et al 2007). The wolf was a breeding female from a pack that consisted of five to seven individuals (Tsunoda et al 2009). We used only the fixes that were collected during 24-h continuous radiotelemetry of the female (see details in Eggermann et al 2009).…”

Section: Methodsmentioning

confidence: 99%

The need for standardization in wildlife science: home range estimators as an example

Gula

Theuerkauf

2013

Eur J Wildl Res

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Individual studies in wildlife science are indicative rather than conclusive. Although multiple studies can be meta-analyzed in such a way that scientific hypotheses can be tested, robust meta-analyses are often difficult or impossible if variables of interest are not measured in a uniform manner. We hypothesized that measurements, even of basic and unequivocal variables, are rarely standardized in wildlife sciences. We tested this assumption by reviewing randomly selected papers that describe the home range of mammals (n=25) and birds (n=25). In these papers, home ranges were calculated using 11 methods and 8 computer programs. The number of radiolocations used to calculate home ranges varied from 9 to >2,000. By estimating home ranges for two radiotelemetry data sets, we demonstrate that home ranges are not comparable if different methods are used and that estimates of home range are not standardized. We assume that measurements of other biological variables are even less consistent across studies. In order to advance wildlife sciences, we believe that standardization initiatives are required at an international level.

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How does parental role influence the activity and movements of breeding wolves?

Cited by 15 publications

References 21 publications

Evidence of wolf dispersal in anthropogenic habitats of the Polish Carpathian Mountains

Evidence of wolf dispersal in anthropogenic habitats of the Polish Carpathian Mountains

Faster and farther: wolf movement on linear features and implications for hunting behaviour

The need for standardization in wildlife science: home range estimators as an example

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