The communal organisation of solitary mammals

Leyhausen, Paul

doi:10.1016/0003-3472(64)90044-2

Cited by 38 publications

(42 citation statements)

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“…The carrying capacity of the mesic habitats of O. irroratus is perennially high and stable, and the species is A'-selected . The complex social organization includes multiple home range overlap and temporal territoriality (Davis 1972) as defined by Leyhausen (1965), intrasexual defence of a small area around the nest by breeding females, and hierarchical relationships among breeding males (Davis 1973).…”

Section: Comparison With O Irroratusmentioning

confidence: 99%

Reproductive biology of the southern African ice rat

Willan¹

1990

Acta Theriol.

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Reproductive biology of the southern African ice ratKen WILL AN Willan K. 1990. Reproductive biology of the southern African ice rat. Acta theriol. 35: 39-51.Reproduction and the postnatal development of nine litters of the southern African ice rat Otomys sloggetti robertsi Hewitt, 1927 were studied in the laboratory. Parturition and lactation occurred in the presence of up to seven cage-mates, reflecting the colonial social organization of O. s. robertsi. Mean litter size was 1.44, reproductive effort 0.53, gestation period 38 days and fecundity approximately six young p.a. Newborn young weighed 10.6 --12.2 g and were semi-precocial. Early behaviour was dominated by nipple-clinging. Weaning occurred at 16 days old, and sexual maturity at 16 weeks in males and 11 weeks in females. Compared to O. s. robertsi, young of the vlei rat O. irroratus (Brants, 1827) are born more precocial and develop more rapidly. The microthermal environment of O. s. robertsi is harsh but predictable, and the subspecies is K-selected in terms of most reproductive parameters. Reduced fecundity and AT-selection is further attributable to the microhabitat stabilizing effects of nesting, social huddling and food hoarding in an underground burrow.

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Section: Comparison With O Irroratusmentioning

confidence: 99%

Reproductive biology of the southern African ice rat

Willan¹

1990

Acta Theriol.

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“…In some species, such as lions (Panthera leo) (Schaller, 1972), resident males may appropriate food acquired by females. In other species, resident males may not completely exclude other males (Rood and Waser, 1978) or may defend areas only temporarily (Leyhausen, 1965). Carnivore species where active intersexual competition for food or resources has been reported were not recorded as showing indirect male investment in the analysis that follows.…”

Section: Measuring Male Parental Investmentmentioning

confidence: 99%

The Evolution of Male Parental Investment in Mammals

Kleiman

Malcolm

1981

Parental Care in Mammals

360

250

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“…That is, they responded in a way similar to the over marking shown by many other species (e.g. Leyhausen 1965;Johnson 1973;Müller-Schwarze et al 1973;Rasa 1973;Butler and Butler 1979;Biben 1980;Hurst 1987;Johnston et al 1994;Johnston et al 1995). Also, the lack of a response to ESM's without castoreum 11 indicated that beaver were responding to the smell of castoreum and not to the sight of the scent mound.…”

Section: Discussionmentioning

confidence: 61%

Eurasian beavers (<i>Castor fiber</i>) behavioral response to simulated territorial intruders

Rosell¹,

Johansen²,

Parker³

2000

Can. J. Zool.

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Abstract:The Eurasian beaver (Castor fiber) lives in family groups which defend territories against other conspecifics. Part of the territory defence is to construct scent mounds near the stream bank within territories and mark them with castoreum, a urine-based fluid from the castor sacs, and/or anal-gland secretion. The aim of this study was to test the hypothesis that Eurasian beaver show one or more forms of territorial behavior when an intruder, simulated in the form of experimental scent mounds (ESM's), has scent marked inside the territory. We predicted that beavers would show a stronger response to ESM's with castoreum than to ESM's without. Results showed that 85% of all beaver families (N=20) made one or more behavioral responses to ESM's marked with castoreum from foreign adult males, whereas no ESM's presented without castoreum received a response. We therefore conclude that a main function of territorial marking in beaver is to advertise spatially related dominance status, thereby providing opportunities for intruders to assess the presence of the owner and reducing the cost and risks of agonistic conflict for both the owner and intruders. Additionally, it appears to be the scent emitted from an ESM and not the sight of it that beaver respond to.

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The communal organisation of solitary mammals

Cited by 38 publications

References 0 publications

Reproductive biology of the southern African ice rat

Reproductive biology of the southern African ice rat

The Evolution of Male Parental Investment in Mammals

Eurasian beavers (<i>Castor fiber</i>) behavioral response to simulated territorial intruders

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