Between-group encounters among bonnet macaques (Macaca radiata)

Cooper, Matthew A.; Aureli, Filippo; Singh, Mewa

doi:10.1007/s00265-004-0779-4

Cited by 65 publications

(82 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By intervening in the balance of power between females, within and between groups, their behavior can alter modes of competition. 17,18 This would explain why, contrary to the prediction of the model, females do not participate in intergroup encounters in a significant number of species. (2) Living in groups provides an effective network for the spread of parasites and pathogens.…”

Section: Wranghammentioning

confidence: 40%

Primate socioecology, the lost dream of ecological determinism

Thierry

2008

Evolutionary Anthropology

107

116

View full text Add to dashboard Cite

show abstract

Section: Wranghammentioning

confidence: 40%

Primate socioecology, the lost dream of ecological determinism

Thierry

2008

Evolutionary Anthropology

107

116

View full text Add to dashboard Cite

show abstract

“…It is essential to recognize that favorable/unfavorable sex ratios are different for adult males and females, and male and female strategies have to be analyzed as separate entities rather than as a ''balance'' between the two (Cooper et al 2004). Since survey data at seven-year intervals indicate stable sex ratios in social groups at La Pacifica, it would appear that adults are regularly redistributing themselves throughout the population to optimize the proportion of males to females for each individual adult.…”

Section: Discussionmentioning

confidence: 99%

Secondary transfer of adult mantled howlers (Alouatta palliata) on Hacienda La Pacifica, Costa Rica: 1975–2009

Clarke

Glander

2010

Primates

View full text Add to dashboard Cite

Natal emigration by male and female mantled howlers (Alouatta palliata), and subsequent immigration into breeding groups, is well documented for the free-ranging population on Hacienda La Pacifica, Costa Rica, but secondary transfer was considered rare (Glander in Int J Primatol 3:415-436, 1992). Population surveys in 1998 and 2006 caused us to question our assumptions and to re-evaluate our long-term data set from a post hoc perspective. We first identified all animals observed or captured as adults in more than one non-natal group anywhere in the population. We then systematically analyzed joining or leaving by adults in seven groups tracked for various times from 1975 to 2005 for patterns suggesting secondary transfer. Fourteen adults (nine females, five males) were found in two different non-natal groups as adults. In addition, one male and one female that became dominant and reproduced in their natal group later transferred to a second group, and one female was known to be a tertiary transfer. Data from the seven tracked social groups indicate that 35% of all the males and 29% of all the females were potential secondary transfers. In these groups, males leaving or joining was not associated with group size or absolute number of females. Females leaving or joining was not associated with group size or absolute number of males, but females left groups with more females and joined groups with fewer females. Both sexes left groups with unfavorable sex ratios for their sex and joined groups with sex ratios more favorable for their sex. Since a favorable sex ratio is associated with reproductive success in other howler populations, this suggests secondary transfer as a reproductive strategy. Other factors could also influence secondary transfer.

show abstract

“…Whereas the mate defense strategy by adult males is evident among many species, resource defense by adult females is reported in some species (Fashing 2001). Defending the mate resource through defense of a food resource by adult males has been reported in a few species of primates (Rubenstein 1986;Fashing 2001;Cooper et al 2004). Although consistent with male mate defense and female food defense models, between-group encounters can vary between populations inhabiting different environments (Saito et al 1998).…”

Section: Introductionmentioning

confidence: 92%

Impact of forest fragment size on between-group encounters in lion-tailed macaques

et al. 2014

Self Cite

View full text Add to dashboard Cite

Between-group encounters are an obvious outcome of intergroup competition. Between-group encounters in primates range from avoidance to fatally aggressive. The prevailing hypotheses explain such encounters as mate defense strategy by males and resource defense strategy by females. However, the rate and nature of between-group encounters may also be influenced by habitat and demographic characteristics. We studied the effect of forest fragment size on group encounters in lion-tailed macaques in the Western Ghats of southern India. The encounter rate decreased as the fragment size increased. Group density and home range overlap correlated positively with the encounter rate. The aggressive encounters were more in the relatively medium-sized fragment where the observed frequency of between-group encounters was higher than the expected frequency than in the small fragment and the large forest complex. Together, these results indicate a complex pattern of effects of fragment size on between-group encounters in primates.

show abstract

Between-group encounters among bonnet macaques (Macaca radiata)

Cited by 65 publications

References 61 publications

Primate socioecology, the lost dream of ecological determinism

Primate socioecology, the lost dream of ecological determinism

Secondary transfer of adult mantled howlers (Alouatta palliata) on Hacienda La Pacifica, Costa Rica: 1975–2009

Impact of forest fragment size on between-group encounters in lion-tailed macaques

Contact Info

Product

Resources

About