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

Gopukumar, N.; Karuppudurai, T.; Doss, D. Paramanatha Swami

doi:10.1016/j.mambio.2004.10.001

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…Moreover, more than one adult male was never observed in a tent (Storz et al 2000a). In a recent study, Gopukumar et al (2005a) reported that the frequency of nonharem males was high between August and October, and further suggested that these months are timing for sexual maturity of young males increasing competition among first time breeding males to establish a day roost for recruiting females to achieve mating in October-November. The objective of the present study is to document recruitment of females by solitary males in contrast to the regular mating strategy of the short-nosed fruit bat C. sphinx.…”

Section: Introductionmentioning

confidence: 98%

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: Introductionmentioning

confidence: 98%

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

et al. 2008

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“…Nonetheless, our findings provide new insights to sex differences found in the general ecology of C. sphinx . Female bats disperse farther from their natal grounds and forage over larger home range area than males ( Gopukumar et al, 2005 ; Marimuthu et al, 1998 ). Based on our findings, we contend that the higher rate of glucose metabolism provides higher energy reserves to sustain physical activity in female C. sphinx .…”

Section: Discussionmentioning

confidence: 99%

Sex differences in postprandial blood glucose and body surface temperature are contingent on flight in the fruit bat, Cynopterus sphinx

Nagarajan-Radha

Devaraj²

2021

Biology Open

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The postprandial blood glucose level is very high for the body size in frugivorous bats. Like other homeotherms, bats release heat during digestion of dietary macronutrients. Despite males and females of the same species exhibiting different foraging behaviour, empirical support for sex-differences in blood glucose and body surface temperature in fruit bats is poor. Moreover, while flight affects postprandial metabolism, whether such effects are different in each sex of fruit bats is unclear. Here, we studied these questions in the fruit bat, Cynopterus sphinx. We first assessed whether there are sex differences in the postprandial level of blood glucose and body surface temperature over time in rested bats. We then assessed whether flight affects outcomes of sex-differences in both traits. We found that the estimated marginal means of both traits were generally higher in females than males, in rested bats. Notably, the sex-difference in both traits was only significant at specific sampling time of the assay. Further, the trait means significantly differed between the sexes only in the rested, but not active, bats. Meaning that signals of sex-difference in metabolic traits eroded when bats were active. Taken together, our findings suggest that in C. sphinx, the sex-specificity in the expression of metabolic traits is significantly dependent on physical activity.

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“…Studies conducted by some authors [7][8][9] are examples of how radio telemetry has contributed to our understanding of chiropterans. For instance, radio tracking has provided insights into the activities of Nyctalus noctula, Rhinolophus ferrumequinum, Plecotus auritus, and Eptesicus nilsonii, revealing patterns in roost selection and fidelity [10][11][12][13]; mating success [14] and resource defence [15]. Such studies help enhance our understanding of bat ecology, which is vital for effective conservation strategies and habitat management.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Home Range, Foraging Pattern and Roost Fidelity of Greater Short-nosed Fruit Bat (Cynopterus sphinx) in a Semi-Urban Environment

S.,

R.M.,

M.R.

et al. 2024

UPJOZ

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Radio telemetry is a method used in wildlife ecology to examine the movements and behaviours of animals, as well as to define their home ranges and habitat preferences. Bats, a highly diverse group of mammals, are recognized for their essential contributions to ecosystems, including seed dispersal, pollination, and pest control through their foraging activities. This study utilised radio telemetry to explore the basic foraging behaviours, range of movement, and roosting flexibility of the Cynopterus sphinx species. A total of 15 bats were equipped with compact, hand-wired, two-stage transmitter radio devices, including two harem males, nine harem females, and four non-harem males. Three groups used TRX-1000S receivers and collapsible 5-element Yagi antennas to track these radio-tagged bats. Our findings indicate that the radio-tagged female bats were the first to leave their roosts, with emergence times between 18:15 and 19:18 hrs. In contrast, harem males emerged last, following the quicker departure of non-harem males. The harem males covered an average foraging distance of 2.4 km (±0.3 km), whereas non-harem males travelled further. Both male and female bats visited multiple feeding sites nightly, with females travelling an average distance of 4.5 km (±0.9 km). Time spent at foraging sites varied among individuals. Males show higher roost fidelity than females, who frequently move between harems and roost sites. The study highlighted gender-specific differences in emergence times and distinct foraging behaviours, underlining the importance of understanding these patterns for conservation and habitat management efforts, which are crucial for supporting bats' roles as providers of ecosystem services.

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

Cited by 5 publications

References 11 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

Sex differences in postprandial blood glucose and body surface temperature are contingent on flight in the fruit bat, Cynopterus sphinx

Assessing the Home Range, Foraging Pattern and Roost Fidelity of Greater Short-nosed Fruit Bat (Cynopterus sphinx) in a Semi-Urban Environment

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