Factors Affecting the Distribution of Copulatory Plugs in Rhesus Monkeys (Macaca mulatta) on Cayo Santiago

Danzy, Jennifer; Gutierrez, V.; Pampush, James D.

doi:10.1159/000252585

Cited by 5 publications

(3 citation statements)

References 24 publications

(25 reference statements)

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“…Intersexual conflict may be more relevant in taxa where females cannot remove plugs, such as gray mouse lemurs (Eberle & Kappeler, 2004a), but a critical unanswered question is whether variation in plug characteristics (across males or over time) influences female ability to remove them, as is the case in insects (Matsumoto & Suzuki, 1992). Finally, it is important to test the hypothesis that plugs not only do not harm females but also benefit them, for example, by signaling ovulatory status (Danzy, Gutierrez, Pampush, & Campbell, 2009) or facilitating fertilization via sperm retention or transport (McGill, Corwin, & Harrison, 1968). The latter could be valuable in a species like the gray mouse lemur, in which females are in estrus for only a few hours on a single night each year.…”

Section: Accessory Gland Secretions Genital Plugs Sperm and The Fementioning

confidence: 99%

Sexual Conflict in Nonhuman Primates

Palombit¹

2014

Advances in the Study of Behavior

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Section: Accessory Gland Secretions Genital Plugs Sperm and The Fementioning

confidence: 99%

Sexual Conflict in Nonhuman Primates

Palombit¹

2014

Advances in the Study of Behavior

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“…Mating plugs are postcopulatory devices considered to impede or block the females from future mating and are inserted into the female copulatory organ (Stockley et al, 2020 ). Mating plugs are taxonomically widespread, described from nematodes (Timmermeyer et al, 2010 ) to primates (Danzy et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

Mate‐guarding success depends on male investment in a butterfly

Gór,

Lang,

Pásztor

et al. 2023

Ecology and Evolution

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Males of many insects, including butterflies, produce mate‐guarding devices, such as mating plugs, to prolong guarding and prevent future female matings in the male's absence. In a few butterflies, large external mate‐guarding devices, that is, sphragides, occur. Gór et al. (Behaviour, 160, 2023 and 515−557) found conspicuously large size and morphological variation of mate‐guarding devices within a single population of the potentially polyandrous Clouded Apollo (Parnassius mnemosyne, L.) butterfly. They termed the externally visible male‐produced devices as Copulatory opening APpendices (CAP) consisting of small devices, termed small CAPs and the much larger shield (i.e. sphragis). Our aim was to reveal CAP replacement dynamics within females during their lifetime and to understand how male investment into small CAPs or shields was (i) related to CAP persistence on the female, that is securing paternity, (ii) associated with female quality, measured as size and (iii) with actual adult sex ratio. We investigated a univoltine Clouded Apollo population to estimate CAP replacement risks, using multistate survival models, in an extensive observational study through 6 years based on mark‐recapture. Shields were the most frequent mate‐guarding devices and were more persistent than small CAPs, often lasting for life, excluding future matings. Thus, most females bearing a shield were deprived of postcopulatory female choice, and the genetic variance in their offspring could be reduced compared to those bearing small CAPs, thus mating more often. The ratio of shields to all CAPs gradually decreased towards the end of the flight period. Males were more prone to produce a shield when mating females with wider thoraces and when the ratio of males (i.e. competition) was higher in the population. To our best knowledge, this is the first quantitative study to investigate potential factors on which male investment in mate‐guarding devices may depend, and how the variation in these devices impacts CAP persistence on females.

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“…Thus, sperm plug was not always visible to the observer during focal animal following, and some female macaques ran away immediately from their partners after the complete copulation. Some other factors affected the sperm plug visibility were depth of reproductive tract (Danzy et al, 2009), the volume of seminal fluid which was usually high amount in mating season in male rhesus macaques (Zamboni et al, 1974;Settlage and Hendrickx., 1974), and some females took the sperm plug on their vagina or ate. The sexual behavior that was observed often was female solicitation, male genital inspection, and then mating.…”

Section: Sexual Behaviors and Birthmentioning

confidence: 99%

Sexual behaviors of indochinese long-tailed macaque macaca fascicularis in comparison with sundaic long-tailed macaque

Kumpai¹

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Regarding to the previous studies reported that the past hybridization event between rhesus (Macaca mulatta; Mm) and long-tailed (M. fascicularis; Mf) macaques was occurred by the southward introgression of male Mm into Mf population, thus the Mf originating from Indochinese region carried higher level of genetic admixture of Mm ancestry than the Mf living in Sundaic region. Since it was reported that Mf are non-seasonal breeder while Mm are seasonal breeder, thus, it is interesting to compare the sexual behaviors between Indochinese and Sundaic Mf. Mf populations at Wat Haad Moon Kra Beau, Pichit province (WHM; 16° 51′N) and Khao Noi/Khao Tangkuan, Songkhla province (KN/KTK; 7° 12′N) who carried 50% and 15% of Mm genetics were selected as representatives of Indochinese and Sundaic Mf. Ten adult females from each population were selected as focal animals and followed for 12 months (7 days/month/population) from January–December, 2018. Frequency of three sexual behaviors (proceptivity, attractivity and receptivity), number of newborn, changes of sex skin (scoring from 0 – 4) and salivary hormonal analysis collected by rope bait method were determined and recorded. Both populations showed three sexual behaviors throughout the year, but the peak period of the WHM (November–March) was one-month earlier than the KN/KTK (December–April). In association with a 24-week gestation period of Mf, though births were observed all year round, the birth peaks occurred in April-July for WHM and June-September for KN/KTK. Following the reproductive seasonality classification system of van Schaik and colleagues (1999), both populations were classified as moderately seasonal breeder that the birth count with a three-month period was 33-67% (56%; 5 out of 9 birth count for WHM, and 52%; 15 out of 29 birth count for KN/KTK). Sex skin swelling and reddening were consistent in both populations and thus no correlation with sexual behaviors. However, average score of sex skin reddening (Mm characters) in WHM (2.70±0.82) was higher than the KN/KTK (2.00±0.0), while the average score of swelling at the base of the tail (Mf characters) in WHM (0.70±0.48) was lower than the KN/KTK (1.50±0.85). Since the measurement of salivary estradiol levels was not succeeded, several interfering factors were predicted such as low estradiol levels in saliva. From these results, it indicates that autosomal genetic admixture of Mm has no effect on sexual behaviors of Mf, but it can intervene the fecundity and changes of sex skin. Thus, the reproductive seasonality was no differences between WHM Indochinese and KN/KTK Sundaic Mf, while the fecundity and sex skin reddening of WHM females were more prone to Mm’s pattern than the KN/KTK females.

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Factors Affecting the Distribution of Copulatory Plugs in Rhesus Monkeys (Macaca mulatta) on Cayo Santiago

Cited by 5 publications

References 24 publications

Sexual Conflict in Nonhuman Primates

Sexual Conflict in Nonhuman Primates

Mate‐guarding success depends on male investment in a butterfly

Sexual behaviors of indochinese long-tailed macaque macaca fascicularis in comparison with sundaic long-tailed macaque

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