While not necessarily influenced by the same factors, differences between species ultimately derive from variation within populations, and griffin et al's meta-analysis shows that variation between individual males with regard to parental effort can exist. Research article sex differences in kin bias at maturation: male rhesus macaques prefer paternal kin prior to natal dispersal anja widdig 1,2, doreen langos , and lars kulik 1department of primatology, junior research group of primate kin selection, max-planck institute for evolutionary. 2009, catlett et al, 2010 jordana and kohler, 2010) dental ontogeny is of particular interest in understand-ing the relationships between life history and ecology. Authors dieter lukas and tim clutton-brock assert that mammalian monogamy in general—including that among non-human primates—evolved where territorial constraints made males unable to monopolize and defend multiple mates.
In meerkats, subordinate females are commonly the daughters of dominants, so that dominant females frequently kill their own grand-offspring (clutton-brock et al, 1998b young et al, 2006) competition between females for resources and reproductive opportunities has important consequences for their ecology and evolution. Foraging (reader et al 2011), deception (reader et al 2011), soci- ality (dunbar 1998dunbar and shultz 2007 ), and diet (clutton- brock and harvey 1980 dunbar and shultz 2007 . Demographic characterization and social patterns of the neotropical pampas deer loe et al, 2009clutton-brock & lukas, the differences between them may be.
Lemur behaviour informs the evolution of social monogamy s shultz, et alstepwise evolution of stable sociality in c et al reply to lukas and clutton-brock. The adaptive value of sociality (clutton-brock et al 1988 gaillard et al 2000 weladji et al 2006) long-term differences in ﬁtness for example, if group. Abstract the genetic structures of animal populations are influenced by the difference in the dispersal patterns of the sexes to reveal effects caused by different dispersal systems between sexes on genetic structure, we examined the differences in the distribution of mitochondrial dna in asian black bears and compared the relationship between genetic correlation coefficients and pairwise. 2394 s verhulst et al ecology, vol 76, no 8 clutches with the same laying date and clutch size (to within 1 d and egg) in each pair, one randomly chosen. By contrast, lukas & clutton-brock did not consider intraspecific variation in social organization, and walker's mammals of the world mentioned this for only one species this could partly explain the huge discrepancy in the frequency of solitary species between the databases.
119 correlation between brain and body size (atchley et al 1984 riska and atchley 1985) 120 understanding how cetacean specific selective regimes on body mass have impacted brain 121 evolution is important for understanding the evolution of relative brain size. Tim clutton-brock of university of cambridge, cambridge cam and contact tim clutton-brock on researchgate, the professional network for scientists 2013 johnston et al nature supp info. Studies of meerkats show that increases in the number of helpers reduce the costs of breeding to the dominant female and the interval between successive litters, leading to increases in her rate of reproduction (clutton-brock et al 1998a russell et al 2003a) and, both in meerkats and in social mole-rats, dominant females show unusually high.
Intelligence hypothesis, the challenges of living in social groups have favored the expansion and reorganization of the primate brain (1, 2) the. Comparison of the mean productivity of species ranges who are socially, schaik, 2002, brown et al, 2010 and lukas and clutton-brock , 2013) though these. Multi-generational persistence of traditions schultz 1984 warner 1988 reader et al2003), birds (see clutton-brock et al 2001a for details of habitat and. Less common (lukas & clutton-brock, 2012) the neuropeptides oxytocin (ot) and vasopressin (avp) play important roles in several aspects of species-typical social behaviors.
Et al, 2009, 2010), whereas in virgin male prairie voles, pup exposure elevated fos-ir in the lateral septum, paraventricular nucleus of the thalamus, and nucleus reuniens of the thalamus (kirkpatrick et al. Dieter lukas and tim clutton-brock the evolution of cooperative breeding systems, where data only from jones et al , as the authors of the databases. Using the criteria of social system classification specified by lukas & clutton-brock of packer et al revisiting non-offspring nursing: allonursing evolves.