scholarly journals Social Organization and Mating System of Macaca Fascicularis (Long Tailed Macaques)

2011 ◽  
Vol 3 (2) ◽  
Author(s):  
Shahrul Anuar ◽  
Karim Ullah
Author(s):  
Lowell L. Getz ◽  
Betty McGuire ◽  
Joyce Hofmann ◽  
Theresa Pizzuto ◽  
Barbara Frase

Genetica ◽  
2020 ◽  
Vol 148 (2) ◽  
pp. 125-133
Author(s):  
Maximiliano Nardelli ◽  
Ezequiel Ibañez ◽  
Dara Dobler ◽  
Gimena Illia ◽  
Agustín M. Abba ◽  
...  

2019 ◽  
Vol 20 (2) ◽  
pp. 362-374
Author(s):  
Yoichi Inoue ◽  
Waidi Sinun ◽  
Kazuo Okanoya

Abstract Mating activity of a wild Mueller’s gibbon group (Hylobates muelleri) was observed in the Danum Valley Conservation Area, Sabah, Malaysia. The purpose of this study was to investigate the function of copulation calls in gibbons. The female emitted copulation calls at the time of intromission and pelvic thrusting. Copulation calls were composed of two notes and one of them was sung only while mating. Approximately half of copulation calls were sung near the range boundary. Mating with copulation calls sometimes occurred while singing. According to the model that female copulation calls have evolved under the selective pressures of risk of infanticide and sperm competition, copulation calls should be rare in species with little female promiscuity. As gibbons usually live in pair-living social organization and have a monogamous mating system, no vocal signals by female gibbons are considered to be needed. However, clear copulation calls were emitted by the female. It suggests that the relationship between paired gibbons is unstable. Copulation calls by the female Mueller’s gibbon may function to increase mate guarding and strengthen the pair bond.


Microbiology ◽  
2005 ◽  
Vol 151 (9) ◽  
pp. 3117-3125 ◽  
Author(s):  
Christine Demanche ◽  
Fanélie Wanert ◽  
Mathieu Barthélemy ◽  
Jérôme Mathieu ◽  
Isabelle Durand-Joly ◽  
...  

Simian populations represent valuable models for understanding the epidemiology of human pneumocystosis. The present study aims to describe the circulation of Pneumocystis organisms within a social organization of healthy crab-eating macaques (Macaca fascicularis) living in a natural setting in France. Animals were followed for up to 2 years. Deep nasal swab and blood samples were collected monthly from each animal under general anaesthesia. Environmental air was sampled for a 1 week period every month in the park where the macaques dwelt. Pneumocystis DNA was detected by nested-PCR of mitochondrial large subunit rRNA (mtLSU) gene in nasal swab and air samples. Anti-Pneumocystis IgG antibodies were detected in serum samples by indirect immuno-fluorescence assay. Pneumocystis DNA was detected in 168 of 500 swab samples examined (33·6 %). The number of macaques with detectable Pneumocystis DNA was highly variable from one month to another. Positive detection of Pneumocystis DNA was not related to the detection of serum anti-Pneumocystis antibody. During the second year of the study, Pneumocystis DNA was amplified more frequently from unweaned macaques than from adults or subadults. The mtLSU sequence showed marked polymorphism with eight Pneumocystis sequence types representing two distinct groups. On the whole, a constant and intensive circulation of Pneumocystis organisms within the community was observed. However, the implication of the various members of the colony was probably different and several levels of colonization by Pneumocystis may occur in immunocompetent macaques.


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