Browsing USN Open Archive by Author "Zedrosser, Andreas"

Now showing items 21-40 of 65

    • Exploring gastropod presence along an altitudinal gradient in reindeer habitat: implications for infection with brainworm disease. 

      Garcia Cuesta, Irene; Díaz Gómez, María Elena (Master thesis, 2024)
      The emergence of diseases, such as cerebrospinal elaphostrongylosis caused by brain worms or Chronic Wasting Disease (CWD), as a critical threat to wildlife has accentuated the necessity of understanding disease dynamics ...

    • Extra-territorial movements differ between territory holders and subordinates in a large, monogamous rodent 

      Mayer, Martin; Zedrosser, Andreas; Rosell, Frank (Journal article; Peer reviewed, 2017)
      Territorial animals carry out extra-territorial movements (forays) to obtain pre-dispersal information or to increase reproductive success via extra-pair copulation. However, little is known about other purposes and spatial ...

    • 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 ...

    • Fear the reaper: ungulate carcasses may generate an ephemeral landscape of fear for rodents 

      Frank, Shane C.; Blaalid, Rakel; Mayer, Martin; Zedrosser, Andreas; Steyaert, Sam (Journal article; Peer reviewed, 2020)
      Animal carcasses provide an ephemeral pulse of nutrients for scavengers that use them. Carcass sites can increase species interactions and/or ephemeral, localized landscapes of fear for prey within the vicinity. Few studies ...

    • Fears from the past? The innate ability of dogs to detect predator scents 

      Samuel, Lydia; Arnesen, Charlotte Holmstad; Zedrosser, Andreas; Rosell, Frank (Peer reviewed; Journal article, 2020)
      Throughout the animal kingdom, antipredator mechanisms are an evolutionary driving force to enable the survival of species classified as prey. Information regarding a predator’s location can be determined through chemosensory ...

    • Forests buffer the climate-induced decline of body mass in a mountain herbivore 

      Reiner, Rudolf; Zedrosser, Andreas; Zeiler, Hubert; Hackländer, Klaus; Corlatti, Luca (Peer reviewed; Journal article, 2021)
      Climate change is known to affect key life-history traits, such as body mass, reproduction, and survival in many species. Animal populations inhabiting mountain habitats are adapted to extreme seasonal environmental ...

    • Gut retention time in captive brown bears Ursus arctos 

      Elfström, Marcus; Støen, Ole-Gunnar; Zedrosser, Andreas; Warrington, Ian; Swenson, Jon (Journal article; Peer reviewed, 2013)
      Knowing animals’ gut retention time (GRT) for important food items is critical when using non-invasive studies based on faecal remains, e.g. when analysing nutritive quality of food, or relating diet or behaviour to ...

    • Harvest is associated with the disruption of social and finescale genetic structure among matrilines of a solitary large carnivore 

      Frank, Shane C.; Pelletier, Fanie; Kopatz, Alexander; Bourret, Audrey; Garant, Dany; Swenson, Jon; Eiken, Hans Geir; Hagen, Snorre; Zedrosser, Andreas (Peer reviewed; Journal article, 2020)
      Harvest can disrupt wildlife populations by removing adults with naturally high survival. This can reshape sociospatial structure, genetic composition, fitness, and potentially affect evolution. Genetic tools can detect ...

    • 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 ...

    • Hibernation ecology of brown bears in Sweden 

      Friebe, Andrea; Swenson, Jon; Zedrosser, Andreas (Chapter, 2023)
      Hibernation is an adaptive strategy to cope with unfavourable environmental conditions. Bears are the only large mammal that use this strategy during winter. They reduce their body temperature by several degrees and their ...

    • High concentrations of lead (Pb) in blood and milk of free-ranging brown bears (Ursus arctos) in Scandinavia 

      Fuchs, Boris; Thiel, Alexandra; Zedrosser, Andreas; Brown, Ludovick; Hydeskov, Helle Bernstorf; Rodushkin, Ilia; Evans, Alina; Boesen, Amanda Høyer; Græsli, Anne Randi; Kindberg, Jonas; Arnemo, Jon Martin (Peer reviewed; Journal article, 2021)
      Exposure to lead (Pb) is a global health problem for both humans and wildlife. Despite a dramatic decline in human Pb exposure following restrictions of leaded gasoline and industry and thereby an overall reduction of Pb ...

    • 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 ...

    • Hunting promotes spatial reorganization and sexually selected infanticide 

      Leclerc, Martin; Frank, Shane C.; Zedrosser, Andreas; Swenson, Jon; Pelletier, Fanie (Journal article; Peer reviewed, 2017)
      Harvest can affect the ecology and evolution of wild species. The removal of key individuals, such as matriarchs or dominant males, can disrupt social structure and exacerbate the impact of hunting on population growth. ...

    • Hunting regulation favors slow life histories in a large carnivore 

      Van de Walle, Joanie; Pigeon, Gabriel; Zedrosser, Andreas; Swenson, Jon; Pelletier, Fanie (Journal article; Peer reviewed, 2018)
      As an important extrinsic source of mortality, harvest should select for fast reproduction and accelerated life histories. However, if vulnerability to harvest depends upon female reproductive status, patterns of selectivity ...

    • Hva synes folk om rådyr (Capreolus capreolus) i nærområdet i Moss kommune? 

      Andersen, Hanne (Master thesis, 2023)
      Urbanisering og habitatødeleggelse fører til at mange arter får mindre leveområder, og at leveområdene til dyr og planter blir delt opp i fragmenter. Byområder blir dermed brukt mer og mer som habitat av dyr. Rådyret er ...

    • 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 ...

    • Influence on Alert Distance and Flight Reaction of Roe Deer 

      Voronchikhina, Alexandra; Codó Cónsol, Eduard (Master thesis, 2024)
      As human development expands across the planet, there are fewer places where animals can find a safe refuge. This leads to animals encroaching on human settlements and an increase in animal-human interactions. As this ...

    • Insights in the regulation of trimetylamine N-oxide production using a comparative biomimetic approach suggest a metabolic switch in hibernating bears 

      Ebert, Thomas; Painer, Johanna; Bergman, Peter; Qureshi, Abdul Rashid; Giroud, Sylvain; Stalder, Gabrielle; Kublickiene, Karolina; Göritz, Frank; Vetter, Sebastian G.; Bieber, Claudia; Fröbert, Ole; Arnemo, Jon Martin; Zedrosser, Andreas; Redtenbacher, Irene; Shiels, Paul; Johnson, Richard J.; Stenvinkel, Peter (Peer reviewed; Journal article, 2020)
      Experimental studies suggest involvement of trimethylamine N-oxide (TMAO) in the aetiology of cardiometabolic diseases and chronic kidney disease (CKD), in part via metabolism of ingested food. Using a comparative biomimetic ...

    • The interplay between hunting rate, hunting selectivity, and reproductive strategies shapes population dynamics of a large carnivore 

      Van de Walle, Joanie; Pelletier, Fanie; Zedrosser, Andreas; Swenson, Jon; Jenouvrier, Stéphanie; Bischof, Richard (Peer reviewed; Journal article, 2021)
      Harvest, through its intensity and regulation, often results in selection on female reproductive traits. Changes in female traits can have demographic consequences, as they are fundamental in shaping population dynamics. ...

    • Landscape of fear or landscape of food? Moose hunting triggers an antipredator response in brown bears 

      Brown, Ludovick; Zedrosser, Andreas; Arnemo, Jon Martin; Fuchs, Boris; Kindberg, Jonas; Pelletier, Fanie (Peer reviewed; Journal article, 2023)
      Hunters can affect the behavior of wildlife by inducing a landscape of fear, selecting individuals with specific traits, or altering resource availability across the landscape. Most research investigating the influence of ...