Blar i USN Open Archive på forfatter "Rosell, Frank"
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Sociodemographic factors modulate the spatial response of brown bears to vacancies created by hunting
Frank, Shane C.; Leclerc, Martin; Pelletier, Fanie; Rosell, Frank; Swenson, Jon; Bischof, Richard; Kindberg, Jonas; Eiken, Hans Geir; Hagen, Snorre; Zedrosser, Andreas (Journal article; Peer reviewed, 2017)1. There is a growing recognition of the importance of indirect effects from hunting on wildlife populations, e.g. social and behavioural changes due to harvest, which occur after the initial offtake. Nonetheless, little ... -
Subspecies discrimination in the Scandinavian beaver (Castor fiber): combining behavioral and chemical evidence
Rosell, Frank; Steifetten, Øyvind (Journal article; Peer reviewed, 2004)Geographic isolation is one of several models that has been proposed to explain the evolutionary course of speciation. In this study, we examined how geographical isolation may affect subspecies discrimination in the ... -
Territoriality and group sizes in Eurasian beavers (Castor fiber): echoes of settlement and reproduction?
Campbell, Ruairidh D.; Rosell, Frank; Nolet, Bart A.; Dijkstra, Vilmar A.A. (Journal article; Peer reviewed, 2005)According to current theories of territoriality, an animal is expected to defend the smallest area that can provide resources for maximisation of reproduction, known as the lsquoeconomically defendablersquo area. In group ... -
Territoriality and time budgets in beavers during sequential settlement
Nolet, Bart A.; Rosell, Frank (Journal article; Peer reviewed, 1994)Beavers (Castor fiber) were sequentially released into a previously unoccupied area. The settlement of the animals approximated an ideal despotic distribution: they successively settled in rich habitat and then in poor ... -
Territory ownership and familiarity status affect how much male root voles (Microtus oeconomus) invest in territory defence
Rosell, Frank; Gundersen, Gry; Le Galliard, Jean-François (Journal article; Peer reviewed, 2008)Neighbour–stranger discrimination occurs when individuals respond with more aggression to strangers than to territorial neighbours—a phenomenon termed the “dear enemy phenomenon” (DEP). We investigated the DEP with male ... -
The beaver's reconquest of Eurasia: status, population development, and management of a conservation success
Harvey, Duncan; Rosell, Frank (Journal article; Peer reviewed, 2002)Overhunting reduced Eurasian Beaver (Castor fiber) populations to c. 1200 animals, in eight isolated populations, around the end of the 19th century. Protection, natural spread and reintroductions led to a powerful recovery ... -
The function of scent marking in beaver (Castor fiber) territorial defence
Rosell, Frank (Doctoral thesis; Peer reviewed, 2001)This thesis examines how scent marking in Eurasian beaver (Castor fiber) functions in territorial defence. Beavers usually deposit scent (castoreum and/or anal gland secretion (AGS)) onto small piles of mud and debris, and ... -
The importance of chemical communication studies to mammalian conservation biology: A review
Campbell-Palmer, Róisín; Rosell, Frank (Journal article; Peer reviewed, 2011-05-14)The relevance of chemical communication to mammalian conservation is not often the focus of scientific investigation. Our review identifies and discusses ten key areas in which the study of chemical communication aids ... -
The Use of Acceleration to Code for Animal Behaviours; A Case Study in Free-Ranging Eurasian Beavers Castor fiber
Graf, Patricia Maria; Wilson, Rory Paul; Qasem, Lama; Hackländer, Klaus; Rosell, Frank (Journal article; Peer reviewed, 2015-08-28)Recent technological innovations have led to the development of miniature, accelerometercontaining electronic loggers which can be attached to free-living animals. Accelerometers provide information on both body posture ... -
Tool-use in a display behaviour by Eurasian beavers ( Castor fiber )
Thomsen, Liat R.; Campbell, Ruairidh D.; Rosell, Frank (Journal article; Peer reviewed, 2007)Tool use is rare amongst rodents and has never been recorded in connection with agonistic displays. We witnessed a behaviour, stick display (StD), involving tool use in free-living Eurasian beavers (Castor fiber) that we ... -
Use of anal gland secretion to distinguish the two beaver species Castor canadensis and C. fiber
Rosell, Frank; Sun, Lixing (Journal article; Peer reviewed, 1999)Introduced North American beavers Castor canadensis pose a potential threat to the continuing recovery of Eurasian beaver C. fiber populations in several European countries. For management purposes, it is necessary to be ... -
Use of dawn and dusk sight observations to determine colony size and family composition in Eurasian beaver Castor fiber
Rosell, Frank; Parker, Howard; Steifetten, Øyvind (Journal article; Peer reviewed, 2006)The methods used to determine family composition and colony size in Eurasian beaver Castor fiber Linnaeus, 1758 are often poorly described in published reports. Here we show how repeated counts of colony size in a random ... -
Use of linear and areal habitat models to establish and distribute beaver Castor fiber harvest quotas in Norway
Parker, Howard; Steifetten, Øyvind; Uren, Gisle; Rosell, Frank (Journal article; Peer reviewed, 2013)In Norway the Eurasian beaver Castor fiber harvest is quota-regulated. Once the annual quota for each municipality has been determined it is distributed to landowner-organized beaver management units. Municipal wildlife ... -
Use of space and movement patterns in monogamous adult Eurasian beavers (Castor fiber)
Herr, Jan; Rosell, Frank (Journal article; Peer reviewed, 2004)Monogamy in mammals is characterized by reduced sexual dimorphism in morphology and behaviour. Ten pairs of Eurasian beaver Castor fiber were radio-tracked to test how far this concept can be applied to movement behaviour ... -
Will Trespassers Be Prosecuted or Assessed According to Their Merits? A Consilient Interpretation of Territoriality in a Group-Living Carnivore, the European Badger (Meles meles)
Tinnesand, Helga Veronica; Buesching, Christina D.; Noonan, Michael J.; Newman, Chris; Zedrosser, Andreas; Rosell, Frank; Macdonald, David W. (Journal article; Peer reviewed, 2015-07-06)Socio-spatial interactions of Carnivores have traditionally been described using the vocabulary of territoriality and aggression, with scent marks interpreted as ‘scent fences’. Here, we investigate the role of olfactory ...