Search Results

Large group size yields group stability in the cooperatively breeding cichlid Neolamprologus pulcher Dik Heg 1,2) , Lyanne Brouwer 1,3) , Zina Bachar 1) & Michael Taborsky 1) ( 1 Department of Behavioural Ecology, Zoological Institute, University of Bern, CH-3032 Hinterkappelen, Switzerland; 3

In: Behaviour

the relevant domains, to result in significant coordination costs of intergroup interactions. Therefore, there is no clear reason why the species or primate troupe reasoning accounts would predict an association between cultural distance and beliefs about group stability. Study Population

In: Journal of Cognition and Culture

J. Mammal 1995 76 481 496 Lewis S.E. Low roost-sited fidelity in pallid bats: associated factors and effect on group stability Behav. Ecol. Sociobiol 1996 39 335 344 Norberg U.M. Fenton M.B. Carnivorous bats? Biol. J. Linn. Soc 1988 33 383 394 Rydell J. Entwistle A. Racey P

In: Israel Journal of Ecology and Evolution

less cohesive than same-body size groups in kangaroos. Although mixed-body size groups were fused for less time than same-body size groups, synchrony was not correlated with group stability. These results question the validity of the activity budget hypothesis as a universal cause for social

In: Behaviour

, implying that the male monopolises most or all matings within the harem. McCracken & Bradbury (1977, 1981) demonstrated by genetic analysis that this assumption is valid for the greater spear-nosed bat Phyllostomus hastatus . In a number of other mammal species, differing in group stability or group sex

In: Behaviour

groups. Display rates or those in different contexts (i.e., sex, aggressive, or intergroup interactions) were the dependent variables and group stability or male rank were the fixed factors entered in the models. Pearson correlations and a multivariate linear regression were calculated to determine if

In: Behaviour

can perceive other members of their group more easily, thereby increasing group stability. This demonstrates that the distribution of group sizes captures information regarding fusion and fission rates of groups, and fitting distributions to data can yield novel insights into animal grouping behaviour

In: Behaviour
Author: J. Lamprecht

or in other species, as e.g. the "pair for- mation behaviours" in GUBLER'S (1981) Chinese quail pairs, or the in- teraction frequency with the own male in KUMMER'S (1975) gelada ba- boon females. Appropriate measures must be sought wherever group stability or instability is to be investigated. The

In: Behaviour

-128. Crews, D. (1974). Effects of group stability, male-male aggression, and male courtship behavior on environmentally-induced ovarian recrudescence in the lizard, Anolis car- olinensis. - J. Zool. 172, p. 419-441. - - (1975). Inter- and intraindividual variation in display patterns in the lizard, Anolis

In: Behaviour
Author: M.W. Fox

(which may in part be reflected in the paradoxical ambivalent aggression described earlier), for 300 in all three packs the lowest ranking wolves rarely engaged in either affectionate or agonistic interactions with higher ranking conspecifics. Thus, if the "tension", and therefore the group stability

In: Behaviour