scholarly journals Effect of Mating Activity and Dominance Rank on Male Masturbation Among Free-Ranging Male Rhesus Macaques

Ethology ◽  
2013 ◽  
pp. n/a-n/a ◽  
Author(s):  
Constance Dubuc ◽  
Sean P. Coyne ◽  
Dario Maestripieri
1997 ◽  
Vol 72 (2) ◽  
pp. 89-102 ◽  
Author(s):  
Patrick T Mehlman ◽  
J.Dee Higley ◽  
Beth J Fernald ◽  
Floyd R Sallee ◽  
Stephen J Suomi ◽  
...  

2011 ◽  
Vol 278 (1723) ◽  
pp. 3452-3458 ◽  
Author(s):  
James P. Higham ◽  
Kelly D. Hughes ◽  
Lauren J. N. Brent ◽  
Constance Dubuc ◽  
Antje Engelhardt ◽  
...  

Animals signal their reproductive status in a range of sensory modalities. Highly social animals, such as primates, have access not only to such signals, but also to prior experience of other group members. Whether this experience affects how animals interpret reproductive signals is unknown. Here, we explore whether familiarity with a specific female affects a male's ability to assess that female's reproductive signals. We used a preferential looking procedure to assess signal discrimination in free-ranging rhesus macaques, a species in which female facial luminance covaries with reproductive status. We collected images of female faces throughout the reproductive cycle, and using faecal hormone analysis to determine ovulation, categorized images as coming from a female's pre-fertile, ovulating, or post-fertile period. We printed colour-calibrated stimuli of these faces, reproducing stimuli perceptually the same in colour and luminance to the original appearance of females. These images were presented to males who were either unfamiliar or familiar with stimuli females. Overall, males distinguished ovulatory from pre-ovulatory faces. However, a significant proportion of males did so only among males familiar with stimuli females. These experiments demonstrate that familiarity may increase a receiver's ability to use a social partner's signals to discern their reproductive status.


2007 ◽  
Vol 69 (8) ◽  
pp. 851-865 ◽  
Author(s):  
Sue Howell ◽  
Greg Westergaard ◽  
Beth Hoos ◽  
Tara J. Chavanne ◽  
Susan E. Shoaf ◽  
...  

Author(s):  
Kelly L Bailey ◽  
Leigh Anna Young ◽  
Caroline E Long ◽  
Caren M Remillard ◽  
Shannon E Moss ◽  
...  

Integrating animals into a new group is a challenge for both free-ranging and captive adult male rhesus monkeys (Macacamulatta), and for females in groups receiving new males. To ensure the genetic viability of the population, however, maletransfers must occur in both natural and captive settings. To facilitate the introduction of groups of adult males to adult females, we designed a new enclosure that is attached to the outdoor compound where females are housed. Here we describethe construction of 3 introduction enclosures, their use during 4 introductions of groups of adult males to adult females, abrief comparison of introduction success rates associated with the new introduction enclosures with those of our traditionalmale introduction method, and a critique by the various groups of staff members working with the new enclosures. Overall, the introduction enclosures benefitted both the macaques and the facility personnel and appear to be a useful enhancementto our process of integrating breeding groups.


2013 ◽  
Vol 63 (3) ◽  
pp. 331-341 ◽  
Author(s):  
Richard McFarland ◽  
Ann MacLarnon ◽  
Michael Heistermann ◽  
Stuart Semple

In order to understand the factors that cause and mediate stress in social animals, many studies have examined differences in male physiological stress levels between mating and non-mating seasons, and related these differences to levels of male-male competition. Very few have explicitly tested whether variation in stress levels is related to mating behaviour itself. We provide preliminary evidence of a negative relationship between faecal levels of glucocorticoid metabolites and mounting frequency in free-ranging male rhesus macaques (Macaca mulatta). This finding may help explain the previous observation that male rhesus macaques show no difference in their levels of faecal glucocortocoids between the breeding and non-breeding season, despite the former being associated with elevated levels of aggression. Our study highlights the importance of directly quantifying mating behaviour when investigating the potential impact of reproductive competition and seasonality on stress physiology.


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