Social dynamics of male muriquis (Brachyteles arachnoides hypoxanthus)

Strier, Karen B.; Dib, Laiena T.; Figueira, José Eugênio Côrtes

doi:10.1163/156853902760102690

Cited by 69 publications

(35 citation statements)

References 32 publications

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“…Other behavior patterns, by contrast, have remained remarkably consistent over time. These muriquis are still exceptionally nonaggressive toward one another , and males are still philopatric and one anothers' closest and most frequent associates (Strier et al, 2002b). Whether these behavioral "constants" are typical of this species or characteristic of what is clearly an expanding population cannot be assessed without comparative data from other muriqui populations and continuing observations of this one.…”

Section: Long-term Studies: Demography and Historymentioning

confidence: 98%

Primatology comes of age: 2002 AAPA Luncheon address

Strier

2003

Am. J. Phys. Anthropol.

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The growth of primate field studies has occurred along multiple dimensions representing expansion in the number of species studied, comparative studies of different populations of the same species, and populations and groups studied over time. The accumulation of data on a broader taxonomic diversity of primates has contributed to advances in the use of comparative methods for gaining insights into interspecific variation in behavior patterns, but the incorporation of intraspecific variation into comparative models of behavior has lagged behind. This delay can be attributed, in part, to the slow rate at which the interacting effects of life history and demography on behavior emerge in slow-growing, longlived primates. It may also reflect the anthropocentric foundation of field primatology, which historically focused on interspecific comparisons with humans instead of interpopulation variation among primates. Conservation concerns have stimulated new thinking about the importance of populations and the range of behavioral variation that populations maintain. The integration of intra-and interspecific behavioral variation will distinguish the next generation of comparative models in primatology, and set a new agenda as field primatology comes of age. Yrbk Phys Anthropol 46:2-13, 2003.

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Section: Long-term Studies: Demography and Historymentioning

confidence: 98%

Primatology comes of age: 2002 AAPA Luncheon address

Strier

2003

Am. J. Phys. Anthropol.

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“…However, whether similar factors affect the distribution of paternity in egalitarian societies has not previously been explored. Here we use longterm behavioral and life-history data to evaluate results from a unique genetic analysis of paternity in the northern muriqui (Brachyteles hypoxanthus), a critically endangered species distinguished by the tolerant, nonhierarchical relationships among and between males and females in their patrilocal society (13,14).…”

mentioning

confidence: 99%

Low paternity skew and the influence of maternal kin in an egalitarian, patrilocal primate

Strier

Chaves

Mendes

et al. 2011

Proc. Natl. Acad. Sci. U.S.A.

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Levels of reproductive skew vary in wild primates living in multimale groups depending on the degree to which high-ranking males monopolize access to females. Still, the factors affecting paternity in egalitarian societies remain unexplored. We combine unique behavioral, life history, and genetic data to evaluate the distribution of paternity in the northern muriqui (Brachyteles hypoxanthus), a species known for its affiliative, nonhierarchical relationships. We genotyped 67 individuals (22 infants born over a 3-y period, their 21 mothers, and all 24 possible sires) at 17 microsatellite marker loci and assigned paternity to all infants. None of the 13 fathers were close maternal relatives of females with which they sired infants, and the most successful male sired a much lower percentage of infants (18%) than reported for the most successful males in other species. Our findings of inbreeding avoidance and low male reproductive skew are consistent with the muriqui's observed social and sexual behavior, but the long delay (≥2.08 y) between the onset of male sexual behavior and the age at which males first sire young is unexpected. The allocation of paternity implicates individual male life histories and access to maternal kin as key factors influencing variation in paternaland grandmaternal-fitness. The apparent importance of lifelong maternal investment in coresident sons resonates with other recent examinations of maternal influences on offspring reproduction. This importance also extends the implications of the "grandmother hypothesis" in human evolution to include the possible influence of mothers and other maternal kin on male reproductive success in patrilocal societies.mating system | reproductive strategy | development | molecular ecology | Platyrrhini

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“…In Alouatta caraya, as in many New World primate species, several adult males may co-reside in the same social group (A. caraya [Kowalewski & Garber, 2010], Brachyteles hypoxanthus [Strier et al, 2002]; Ateles paniscus [Symington, 1990]; Alouatta palliata [Wang & Milton, 2003]). However, Alouatta males usually engage in inter-and intragroup competition for resident females especially during female fertile periods [Di Fiore et al, 2011;van Belle et al, 2008].…”

Section: Introductionmentioning

confidence: 99%

Male reproductive strategies in black and gold howler monkeys (Alouatta caraya)

Oklander

Kowalewski

Corach

2013

American J Primatol

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Behavioral and demographic factors such as group size, social structure, dispersal patterns, and mating systems affect male reproductive success. In the present study, we analyze the relationship between social structure, genetic relatedness of adult males and offspring paternity in one population of Alouatta caraya inhabiting a continuous forest in Northern Argentina. After 14 months of behavioral studies and genotyping 11 microsatellites, we found that dominant or central males achieved greater mating success and fathered all the offspring conceived during our study in two multimale-multifemale groups (both including three adult males). Although skewed toward the dominant males, females copulated with almost all resident males and with extra group males. We found significantly fewer agonistic interactions between adult males in the group with fewer females and where males were more genetically related to each other (average relatedness r ¼ 0.237; 0.015 int/ind/hr vs. r ¼ 0.02; 0.029 int/ ind/hr). Paternity was also analyzed in two other neighboring groups which also showed strong skew to one male over a 2-year period. These results reveal that even though female black and gold howlers mate with many males, infants are typically fathered by one dominant male. Am. J. Primatol. 76:43-55, 2014.

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Social dynamics of male muriquis (Brachyteles arachnoides hypoxanthus)

Cited by 69 publications

References 32 publications

Primatology comes of age: 2002 AAPA Luncheon address

Primatology comes of age: 2002 AAPA Luncheon address

Low paternity skew and the influence of maternal kin in an egalitarian, patrilocal primate

Male reproductive strategies in black and gold howler monkeys (Alouatta caraya)

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