Solitary Adult Males in a Polygynous-Mating Bat (Cynopterus Sphinx): A Forced Option or a Strategy?

Gopukumar, N.; Karuppudurai, T.; Nathan, Parthasarathy Thiruchenthil; Kandula, Sripathi; Arivarignan, G.; Balasingh, J.

doi:10.1644/bfw-031.1

Cited by 8 publications

(12 citation statements)

References 33 publications

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“…Similar results have been reported in Jamaican fruit-eating bat A. jamaicensis (Ortega and Arita 1999). Though the high clustering of females in confined roosting places appear to facilitate resource defence polygyny in C. sphinx, recent results (Storz et al 2000a;Gopukumar et al 2005b) showed the failure of harem males in the exclusive defence of harem females.…”

Section: Discussionsupporting

confidence: 82%

“…In a recent study, Gopukumar et al (2005b) observed that the female recruitment was not due to shortage of roosting resources. Similar results have been reported in Jamaican fruit-eating bat A. jamaicensis (Ortega and Arita 1999).…”

Section: Discussionmentioning

confidence: 97%

“…It is a common plant-visiting bat that occurs throughout the Indo-Malayan region (Storz and Kunz 1999), and roosts solitarily or in small groups in the foliage. It weighs about 45-70 g. It lives in small clusters of colonies of about 2-30 individuals (Balasingh et al 1995;Bhat and Kunz 1995;Storz et al 2000b;Gopukumar et al 2005b). C. sphinx is a polygynous-mating bat and also has a polyestrous reproductive cycle with two well-defined and highly synchronous parturition periods per year (Sreenivasan et al 1974;Krishna and Dominic 1983).…”

Section: Study Speciesmentioning

confidence: 99%

“…C. sphinx is a polygynous bat, although some of these bats were observed roosting alone round the year. During the breeding season, most of these bats live in groups called ''harems'' consisting of a single male and more than one female (Balasingh et al 1995;Bhat and Kunz 1995;Storz et al 2000a, b;Gopukumar et al 2005b). Available literature suggests that resource defence polygyny is believed to be in operation in these bats (Balasingh et al 1995;Bhat and Kunz 1995).…”

Section: Introductionmentioning

confidence: 99%

“…Harem males were defending such tents against other males and thereby enabling copulation with a large number of females which is the regular mating strategy adopted by C. sphinx. However, apart from such successful males, a number of adult males were also observed roosting solitarily (Storz et al 2000b;Gopukumar et al 2005b;Karuppudurai et al 2006). Moreover, more than one adult male was never observed in a tent (Storz et al 2000a).…”

Section: Introductionmentioning

confidence: 99%

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Transition of nonharem male to harem male status in the short-nosed fruit bat Cynopterus sphinx

et al. 2008

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The short-nosed fruit bat Cynopterus sphinx is known to exhibit resource defence polygyny as its primary mating strategy. Tent construction by harem males to recruit females represents a heavy investment of time and effort, which is not done by nonharem males. The previously unobserved mode of harem formation by the solitary males was studied using mark-recapture and radio-telemetry. In our observation, the solitary males roosting near to harems started recruiting females by occupying the tent abandoned by the harems. This result suggests that the transition of nonharem male to harem male status possibly by a previously unobserved mode and the female recruitment is associated with resource (roost). It implies that the solitary males are actively involving in female recruitment and also presumably mating.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 97%

Section: Study Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transition of nonharem male to harem male status in the short-nosed fruit bat Cynopterus sphinx

et al. 2008

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Human‐modified habitats change patterns of population genetic structure and group relatedness in Peter's tent‐roosting bats

Sagot

Phillips

Baker

et al. 2016

Ecology and Evolution

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Although coloniality is widespread among mammals, it is still not clear what factors influence composition of social groups. As animals need to adapt to multiple habitat and environmental conditions throughout their range, variation in group composition should be influenced by adaptive adjustment to different ecological factors. Relevant to anthropogenic disturbance, increased habitat modification by humans can alter species’ presence, density, and population structure. Therefore, it is important to understand the consequences of changes to landscape composition, in particular how habitat modification affects social structure of group‐forming organisms. Here, we combine information on roosting associations with genetic structure of Peter's tent‐roosting bats, Uroderma bilobatum to address how different habitat characteristics at different scales affect structure of social groups. By dividing analyses by age and sex, we determined that genetic structure was greater for adult females than adult males or offspring. Habitat variables explained 80% of the variation in group relatedness (mainly influenced by female relatedness) with roost characteristics contributing the most explained variation. This suggests that females using roosts of specific characteristics exhibit higher relatedness and seem to be philopatric. These females mate with more males than do more labile female groups. Results describe ecological and microevolutionary processes, which affect relatedness and social structure; findings are highly relevant to species distributions in both natural and human‐modified environments.

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Effects of Range, Habitat and Roosting Ecology in Patterns of Group Association in Bats

Sagot

2016

Sociality in Bats

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Solitary Adult Males in a Polygynous-Mating Bat (Cynopterus Sphinx): A Forced Option or a Strategy?

Cited by 8 publications

References 33 publications

Transition of nonharem male to harem male status in the short-nosed fruit bat Cynopterus sphinx

Transition of nonharem male to harem male status in the short-nosed fruit bat Cynopterus sphinx

Human‐modified habitats change patterns of population genetic structure and group relatedness in Peter's tent‐roosting bats

Effects of Range, Habitat and Roosting Ecology in Patterns of Group Association in Bats

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