Social structure of a polygynous tent-making bat, Cynopterus sphinx (Megachiroptera)

Storz, Jay F.; Bhat, H. R.; Kunz, Thomas

doi:10.1017/s0952836900006026

Cited by 27 publications

(89 citation statements)

References 26 publications

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“…Although C. sphinx is not known to undergo seasonal migrations, females may alternate between different roosting habitats in the same local area in response to changes in access to diurnal roosts with suitable microclimates or the availability of fruit and nectar resources (Storz et al 2000b). A similar pattern has been observed in a breeding population of the neotropical fruit bat Carollia perspicillata and Pteropus poliocephalus (Fleming 1988;Eby 1991).…”

Section: Discussionmentioning

confidence: 68%

“…Similarly, among the polygynous bats A. jamaicensis (Ortega and Arita 1999;Ortega et al 2003), Phyllostomus hastatus (McCracken and Bradbury 1981), Desmodus rotundus, (Wilkinson 1985), and S. bilineata (Heckel et al 1999), incomplete monopolization of females by harem males has been observed. In C. sphinx, Storz et al (2000b) reported that new harems are formed when parous females from an established harem join a previously solitary male in a different roost within the same colony.…”

Section: Discussionmentioning

confidence: 99%

“…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%

“…Under such conditions, all adult males are not expected to form a harem of their own, instead majority of adult males roost alone. Storz et al (2000b) conducted an extensive study on the social organization of C. sphinx and defined a colony as a 'single harem or several harems with or without satellite males'. These observations suggest an interesting question: Can a solitary male, which roosts unobtrusively near a harem, succeed in mating with harem females?…”

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: Discussionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Section: Study Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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Dispersal patterns of the short-nosed fruit bat Cynopterus sphinx (Chiroptera: Pteropodidae)

Gopukumar

Karuppudurai

Doss³

2005

Mammalian Biology

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Social structure of a polygynous tent-making bat, Cynopterus sphinx (Megachiroptera)

Cited by 27 publications

References 26 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

Dispersal patterns of the short-nosed fruit bat Cynopterus sphinx (Chiroptera: Pteropodidae)

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