• A "clearcut" case? Brown bear selection of coarse woody debris and carpenter ants on clearcuts 

      Frank, Shane C.; Steyaert, Sam; Swenson, Jon; Storch, Ilse; Kindberg, Jonas; Barck, Hanna; Zedrosser, Andreas (Journal article; Peer reviewed, 2015-07-05)
      Forest management alters habitat characteristics, resulting in various effects among and within species. It is crucial to understand how habitat alteration through forest management (e.g. clearcutting) affects animal ...
    • A human-induced landscape of fear influences foraging behavior of brown bears 

      Lodberg-Holm, Hanna Kavli; Gelink, Henriette Wathne; Hertel, Anne Gabriela; Swenson, Jon; Domevscik, Matej; Steyaert, Sam (Journal article; Peer reviewed, 2018)
      Animals adapt their foraging behavior to variations in food availability and predation risk. In Sweden, brown bears (Ursus arctos) depend on a nearly continuous intake of berries, especially bilberries (Vaccinium myrtillus) ...
    • Bears and berries: species-specific selective foraging on a patchily distributed food resource in a human-altered landscape 

      Hertel, Anne Gabriela; Steyaert, Sam; Zedrosser, Andreas; Mysterud, Atle; Lodberg-Holm, Hanna Kavli; Gelink, Henriette Wathne; Kindberg, Jonas; Swenson, Jon (Journal article; Peer reviewed, 2016)
      When animals are faced with extraordinary energyconsuming events, like hibernation, finding abundant, energy-rich food resources becomes particularly important. The profitability of food resources can vary spatially, ...
    • Behavioral correlates of supplementary feeding of wildlife: Can general conclusions be drawn? 

      Steyaert, Sam; Kindberg, Jonas; Jerina, Klemen; Krofel, Miha; Stergar, Matija; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2014-10-12)
      Supplementary feeding is a common, but controversial, tool in wildlife management, because it can benefit both humans and wildlife (e.g., increased wildlife densities), but has certain downsides (e.g., increased disease ...
    • Caught in the mesh : roads and their network-scale impediment to animal movement 

      Bischof, Richard; Steyaert, Sam; Kindberg, Jonas (Journal article; Peer reviewed, 2017)
      Roads have a pervasive multi-faceted influence on ecosystems, including pronounced impacts on wildlife movements. In recognition of the scale-transcending impacts of transportation infrastructure, ecologists have been ...
    • Ecological implications from spatial patterns in human-caused brown bear mortality 

      Steyaert, Sam; Zedrosser, Andreas; Elfström, Marcus; Ordiz Fernandez, Andres Avelino; Leclerc, Martin; Frank, Shane C.; Kindberg, Jonas; Støen, Ole-Gunnar; Brunberg, Sven; Swenson, Jon (Journal article; Peer reviewed, 2016)
      Humans are important agents of wildlife mortality, and understanding such mortality is paramount for effective population management and conservation. However, the spatial mechanisms behind wildlife mortality are often ...
    • Faecal spectroscopy: a practical tool to assess diet quality in an opportunistic omnivore 

      Steyaert, Sam; Hütter, Franziska J.; Elfström, Marcus; Zedrosser, Andreas; Hackländer, Klaus; Le, Minh Hung; Windisch, Wilhelm M.; Swenson, Jon; Isaksson, Tomas (Journal article; Peer reviewed, 2012)
      Faecal indices of dietary quality can provide useful knowledge about the general ecology of a species, but only if the measurements are accurate and the results are interpreted with caution. In this article, we evaluated ...
    • Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) 

      Rivrud, Inger Maren; Frank, Shane C.; Bischof, Richard; Mysterud, Atle; Steyaert, Sam; Hertel, Anne Gabriela; Hagen, Snorre; Eiken, Hans Geir; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2019)
      Wild animal populations experience selection pressures from both natural and anthropogenic sources. The availability of extensive pedigrees is increasing along with our ability to quantify the heritability and evolvability ...
    • Hunting promotes sexual conflict in brown bears 

      Gosselin, Jacinthe; Leclerc, Martin; Zedrosser, Andreas; Steyaert, Sam; Swenson, Jon; Pelletier, Fanie (Journal article; Peer reviewed, 2017)
      The removal of individuals through hunting can destabilize social structure, potentially affecting population dynamics. Although previous studies have shown that hunting can indirectly reduce juvenile survival through ...
    • Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears 

      Steyaert, Sam; Reusch, Christine; Brunberg, Sven; Swenson, Jon; Hackländer, Klaus; Zedrosser, Andreas (Journal article; Peer reviewed, 2013-10-02)
      Behavioural strategies to reduce predation risk can incur costs, which are often referred to as risk effects. A common strategy to avoid predation is spatio-temporal avoidance of predators, in which prey typically trade ...
    • Litter loss triggers estrus in a nonsocial seasonal breeder 

      Steyaert, Sam; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2014)
      Sexually selected infanticide (SSI) is often presumed to be rare among seasonal breeders, because it would require a near immediate return to estrus after the loss of an entire litter during the mating season. We evaluated ...
    • Reindeer carcasses provide foraging habitat for insectivorous birds of the alpine tundra 

      Badia, Rudy; Steyaert, Sam; Puliti, Stefano; Blaalid, Rakel; Frank, Shane (Peer reviewed; Journal article, 2019)
      On August of 2016, almost an entire herd (n = 323) of wild tundra reindeer (Rangifer tarandus) was killed by lightning on Hardangervidda in southern Norway. While conducting fieldwork for another study in 2017, we ...
    • Seasonal and annual variation in the diet of brown bears Ursus arctos in the boreal forest of southcentral Sweden 

      Stenset, Nina Emilie; Lutnæs, Paul Antoni Nilsen; Bjarnadóttir, Valgerður; Dahle, Bjørn Steinar; Fossum, Kristin Høivik; Jigsved, Patrick; Johansen, Thomas; Neumann, Wiebke; Opseth, Ole; Rønning, Oddmund; Steyaert, Sam; Zedrosser, Andreas; Brunberg, Sven; Swenson, Jon (Journal article; Peer reviewed, 2016)
      Understanding a species' feeding ecology is essential for successful management and conservation, because food abundance can influence body mass, survival, reproductive success, movements, and habitat use. We describe ...
    • Socio-ecological features other than sex affect habitat selection in the socially obligate monogamous Eurasian beaver 

      Steyaert, Sam; Zedrosser, Andreas; Rosell, Frank (Journal article; Peer reviewed, 2015-08-11)
      Habitat selection is a context-dependent mechanism, in which both the internal state as well as external factors affect the behavior and decisions of an individual. This is well known for polygamous mammals, which are ...
    • Temporal effects of hunting on foraging behavior of an apex predator: Do bears forego foraging when risk is high? 

      Hertel, Anne Gabriela; Zedrosser, Andreas; Mysterud, Atle; Støen, Ole-Gunnar; Steyaert, Sam; Swenson, Jon (Journal article; Peer reviewed, 2016)
      Avoiding predators most often entails a food cost. For the Scandinavian brown bear (Ursus arctos), the hunting season coincides with the period of hyperphagia. Hunting mortality risk is not uniformly distributed throughout ...