Browsing Brage INN by Author "Willebrand, Tomas"
Now showing items 1-20 of 20
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Declining reproductive output in capercaillie and black grouse – 16 countries and 80 years
Jahren, Torfinn; Storaas, Torstein; Willebrand, Tomas; Moa, Pål Fossland; Hagen, Bjørn Roar (Journal article; Peer reviewed, 2016)Declines in populations of capercaillie (Tetrao urogallus) and black grouse (Lyrurus tetrix) have been reported from both Central Europe and the continuous boreal forests of Fennoscandia. While intensified land-use is ... -
Declining survival rates of red foxes Vulpes vulpes during the first outbreak of sarcoptic mange in Sweden
Willebrand, Tomas; Samelius, Gustav; Walton, Zea Ann; Odden, Morten; Englund, Jan (Peer reviewed; Journal article, 2021)Rapid declines in red fox Vulpes vulpes populations have followed outbreaks of epizootic mange caused by the mite Sarcoptes scabiei. In Sweden, the first outbreak of sarcoptic mange started in 1977/1978 and affected the ... -
Does recursive use of resource locations shape a home range? Exploring the red fox's cognitive map.
McKeown, Benjamin; Walton, Zea Ann; Willebrand, Tomas (Peer reviewed; Journal article, 2020)A home range represents the outcome of the interplay between an environment, an animal’s understanding of that envi-ronment, and its subsequent movement decisions. Yet, recent studies suggest that recursive movement ... -
Evaluating effects from releasing hand-reared common pheasant (Phasianus colchicus) and grey partridge (Perdix perdix) on biological diversity and animal welfare in Norway
Jahren, Torfinn; Lian, Marianne; Willebrand, Tomas (Oppdragsrapport;13/2023, Research report, 2023)English: The Department of Forestry and Wildlife Management at Inland University of Applied Sciences was commissioned by Fuglehundklubbenes Forbund (FKF) and their Lavlandskomite (LK) to scientifically review and assess ... -
General Experience Rather Than of Local Knowledge is Important for Grouse Hunters Bag Size
Asmyhr, Lasse; Willebrand, Tomas; Hörnell-Willebrand, Maria (Journal article; Peer reviewed, 2012)Wildlife harvest management requires an understanding of hunter behavioral interactions with the game. Hunter harvest is indicated to be more dependent on experience and attitudes than game abundance. We tested how the ... -
Genetic Structure and Gene flow in Red Foxes (Vulpes vulpes) in Scandinavia: Implications for the Potential Future Spread of Echinococcus multilocularis Tapeworm
Hagenlund, Mari; Linløkken, Arne N.; Østbye, Kjartan; Walton, Zea Ann; Odden, Morten; Samelius, Gustav; Willebrand, Tomas; Wilson, Robert Charles (Peer reviewed; Journal article, 2019) -
Lek site defines annual spatial use of male Black Grouse (Tetrao tetrix)
Borecha, Degitu Endale; Willebrand, Tomas; Nielsen, Olafur K. (Journal article; Peer reviewed, 2017)Adult male Black Grouse ( Tetrao tetrix ) are assumed to use the same lek throughout their life-span and juveniles are rarely observed settling far from their natal areas. Here we re- port results on a study of lek ... -
Long-distance dispersal in red foxes Vulpes vulpes revealed by GPS tracking
Walton, Zea Ann; Samelius, Gustav; Odden, Morten; Willebrand, Tomas (Peer reviewed; Journal article, 2018) -
Low activities of digestive enzymes in the guts of herbivorous grouse (Aves: Tetraoninae)
Newman, Julianne; Maurer, Maya; Forbey, Jennifer S.; Brittas, Rolf; Johansson, Örjan; Nielsen, Olafur K.; Willebrand, Tomas; Kohl, Kevin D. (Peer reviewed; Journal article, 2021)Avian herbivores face the exceptional challenge of digesting recalcitrant plant material while under the selective pressure to reduce gut mass as an adaptation for fight. One mechanism by which avian herbivores may overcome ... -
Moving far, staying close: red fox dispersal patterns revealed by SNP genotyping
Walton, Zea Ann; Hagenlund, Mari; Østbye, Kjartan; Samelius, Gustaf; Odden, Morten; Norman, Anita J.; Willebrand, Tomas; Spong, Göran (Peer reviewed; Journal article, 2021)The genetic structure of a population can provide important insights into animal movements at varying geographical scales. Individual and social behaviors, such as philopatry and dispersal, affect patterns of relatedness, ... -
Preferred harvest principles and - regulations amongst willow ptarmigan hunters in Norway
Andersen, Oddgeir; Kaltenborn, Bjørn Petter; Vittersø, Joar; Willebrand, Tomas (Journal article; Peer reviewed, 2014)Hunters ’ preferences for diff erent harvest principles and harvest regulations such as season length and harvest quotas provide important knowledge for wildlife management. We report results from a survey of 2788 willow ... -
Promoting hunting tourism in north Sweden : options of local hunters
Willebrand, Tomas (Journal article; Peer reviewed, 2009)Hunting tourism can help to diversify local economies in rural areas. In northern Sweden, hunting tourism has the potential to counteract outmigration and unemployment, but may entail ecological and social risks. I used ... -
Scavenging on a pulsed resource: quality matters for corvids but density for mammals
Gomo, Gjermund; Mattisson, Jenny; Hagen, Bjørn Roar; Moa, Pål Fossland; Willebrand, Tomas (Journal article; Peer reviewed, 2017)Background: Human food subsidies can provide predictable food sources in large quantities for wildlife species worldwide. In the boreal forest of Fennoscandia, gut piles from moose (Alces alces) harvest provide a potentially ... -
Seasonal movements and dispersal patterns: Implications for recruitment and management of willow ptarmigan (Lagopus lagopus)
Hörnell-Willebrand, Maria; Willebrand, Tomas; Smith, Adam A. (Journal article; Peer reviewed, 2014)We investigated the general patterns of movements in willow ptarmigan (Lagopus lagopus) populations. We analyzed data from 300 radiocollared willow ptarmigan from 3 study areas in the Swedish mountain range, and from 2 ... -
Spatial and temporal variation in the distribution and abundance of red foxes in the tundra and taiga of northern Sweden
Carricondo-Sanchez, David; Samelius, Gustaf; Odden, Morten; Willebrand, Tomas (Journal article; Peer reviewed, 2016)Variation in the distribution and abundance of animals in space and time are key concepts of population ecology. We studied these variations in a population of red foxes (Vulpes vulpes) in the tundra and taiga of northern ... -
Successful Adult Willow Grouse Are Exposed to Increased Harvest Risk
Asmyhr, Lasse; Willebrand, Tomas; Hörnell-Willebrand, Maria (Journal article; Peer reviewed, 2012)Age and sex ratios in bag records are frequently used as indices of population composition for harvested populations. However, vulnerability to harvest may differ by age and sex thereby producing bias in population estimates. ... -
Survival of female capercaillie Tetrao urogallus in northern Sweden
Åhlen, Per-Arne; Willebrand, Tomas; Sjöberg, Kjell; Hörnell-Willebrand, Maria (Journal article; Peer reviewed, 2013)We studied survival and cause-specific mortality of radio-marked capercaillie Tetrao urogallus females relative to habitat type in northern Sweden during 2000-2004. Our high-mountain area (1,600 km2) consisted of the ... -
The optimal foraging theory, crowding and Swedish grouse hunters
Asmyhr, Lasse; Willebrand, Tomas; Hörnell-Willebrand, Maria (Journal article; Peer reviewed, 2013)Hunters that have options to hunt in different areas should evaluate their previous hunting success when they decide where to hunt. Following optimal foraging theory for non-human predators we investigated if hunting success ... -
Variation in home range size of red foxes Vulpes vulpes along a gradient of productivity and human landscape alteration
Walton, Zea Ann; Samelius, Gustav; Odden, Morten; Willebrand, Tomas (Peer reviewed; Journal article, 2017) -
Variation in home range size of red foxes Vulpes vulpes along a gradient of productivity and human landscape alteration
Walton, Zea; Samelius, Gustaf; Odden, Morten; Willebrand, Tomas (Journal article; Peer reviewed, 2017)Home range size is a fundamental concept for understanding animal dispersion and ecologi- cal needs, and it is one of the most commonly reported ecological attributes of free-ranging mammals. Previ ...