Browsing USN Open Archive by Author "Rosell, Frank Narve"
Now showing items 1-8 of 8
-
A camera trapping method for the targeted capture of Eurasian beaver (Castor fiber) tails for individual scale pattern recognition
Dytkowicz, Margarete; Hinds, Rachel Ann; Megill, William M.; Buttschardt, Tillmann K.; Rosell, Frank Narve (Peer reviewed; Journal article, 2023)Camera traps are commonly used to monitor and study wild animals in their natural habitat, with minimal disturbance. Several investigations have shown that the natural markings of animals for some species can be used for ... -
The impact of bio-logging on body weight change of the Eurasian beaver
Robstad, Christian Andre; Lodberg-Holm, Hanna Kavli; Mayer, Martin; Rosell, Frank Narve (Peer reviewed; Journal article, 2021)Bio-logging is a common method to collect ecological data on wild animals, but might also induce stress, reduce body condition, and alter behavior. Eurasian beavers (Castor fiber) are a semi-aquatic and nocturnal species ... -
Impacts of human disturbance on flight response and habitat use of red deer
Meisingset, Erling L.; Gusevik, Joar; Skjørestad, Atle; Brekkum, Øystein; Mysterud, Atle; Rosell, Frank Narve (Peer reviewed; Journal article, 2022)Many wild animals perceive humans as predators, and human disturbance, especially in the form of hunting, triggers antipredatory behavior among prey. Yet, knowledge of how game species react to different types of human ... -
Individual recognition of Eurasian beavers (Castor fiber) by their tail patterns using a computer-assisted pattern-identification algorithm
Dytkowicz, Margarete; Tania, Marcello; Hinds, Rachel Ann; Megill, William M.; Buttschardt, Tillmann K.; Rosell, Frank Narve (Peer reviewed; Journal article, 2024)Individual recognition of animals is an important aspect of ecological sciences. Photograph-based individual recognition options are of particular importance since these represent a non-invasive method to distinguish and ... -
Inferring the effects of predator scent cues on the Eurasian Beaver (Castor fiber) movements using step length and turn angles
Mcelroy, Sara Louise (Master thesis, 2022)Predators have an important role in controlling prey populations. Such population control is not only done through mortality but also through the mere presence of predators in an ecosystem. The beaver has several predators ... -
Retention and loss of PIT tags and surgically implanted devices in the Eurasian beaver
Mayer, Martin; Lian, Marianne; Fuchs, Boris; Robstad, Christian; Evans, Alina; Perrin, Kathryn; Greunz, Eva M.; Laske, Timothy G.; Arnemo, Jon Martin; Rosell, Frank Narve (Peer reviewed; Journal article, 2022)Background: Passive integrated transponder devices (PIT tags) are a valuable tool for individual identification of animals. Similarly, the surgical implantation of transmitters and bio-loggers can provide useful data on ... -
Size is not everything: differing activity and foraging patterns between the sexes in a monomorphic mammal
Lodberg-Holm, Hanna Kavli; Steyaert, Sam; Reinhardt, Stefanie; Rosell, Frank Narve (Peer reviewed; Journal article, 2021)Animals balance foraging with other activities, and activity patterns may differ between sexes due to differing physical requirements and reproductive investments. Sex-specific behavioural differences are common in sexually ... -
A tale of tails: the use of Eurasian beaver (Castor fiber) tails for ageing and individual identification
Hinds, Rachel Ann; Dytkowicz, Margarete; Tania, Marcello; Megill, William M.; Rosell, Frank Narve (Peer reviewed; Journal article, 2023)With increasing technology and knowledge, the range of methods used to monitor wildlife is growing. As many invasive techniques have been shown to negatively impact study populations, the use of non-invasive methods is ...