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Denne identifikatoren kan du bruke til å sitere eller lenke til denne innførselen:
http://hdl.handle.net/2282/335
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| Tittel: | Territoriality and group sizes in Eurasian beavers (Castor fiber): echoes of settlement and reproduction? |
| Forfattere: | Campbell, Ruairidh D.
Rosell, Frank
Nolet, Bart A.
Dijkstra, Vilmar A.A. |
| Dato: | 2005 |
| Forlagets versjon: | http://dx.doi.org/10.1007/s00265-005-0942-6 |
| Sammendrag: | 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 territorial species however, the strategies behind resource defence are likely to be more complex with corporate territoriality, cooperative breeding, delayed dispersal and intra-group competition all potentially playing a role. Here we examined group territoriality in a social herbivorous rodent, the Eurasian beaver Castor fiber. Beavers in our study do not inhabit economically defendable territories. Instead the sequence of arrival of pairs into unoccupied areas seems to play a more important role in determining the size of the territory, whereas group size is determined by past reproductive success. We argue that the settlement pattern and reproductive history have a lasting impact in the territorial system of beavers due to a combination of the low adult mortality, high dispersal costs, and avoidance of resource depletion. |
| Nøkkelord: | Beavers
Territory size
Territorial behavior
Prospective resource defence
Resource depletion
Cooperative breeding
Delayed dispersal
Territorial inheritance
Habitat quality |
| Forlag: | Springer |
| Dokumenttype: | Journal article |
| URI: | http://hdl.handle.net/2282/335 |
| Vises i samlingene: | Institutt for natur-, helse- og miljøvernfag
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