Evidence for Association between a Mother Bat and Its Young During and After Foraging

Brigham, R. Mark; Brigham, A. C.

doi:10.2307/2425674

Cited by 32 publications

(17 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pattern of night roosts becoming day roosts has been suggested for the Indiana bat (Myotis sodalis, Kurta et al 2002) and demonstrated for the Bechstein's bat (M. bechsteinii, Kerth & Reckardt 2003). In many bats, including E. fuscus, mother-daughter pairs share the same night roosts (Brigham & Brigham 1989;Rossiter et al 2002); therefore, knowledge of night roost sites are probably shared among matrilineal females.…”

Section: Discussionmentioning

confidence: 91%

A genetic analysis of group movement in an isolated population of tree-roosting bats

et al. 2008

View full text Add to dashboard Cite

Group fission is an important dispersal mechanism for philopatric adults. In Cypress Hills Interprovincial Park, Saskatchewan, tree-roosting big brown bats (Eptesicus fuscus) exhibit fission-fusion roosting behaviour. During 2004During -2007, the majority of females previously resident to roosting area 1 (RA1) moved to a new roosting area (RA4). We examined how genetic relationships, inferred from data for microsatellite loci and mitochondrial DNA, influenced new roost area (RA) selection during 2006 when colony members were split between the RAs. We found that females who moved to RA4 had higher average relatedness than those that remained in RA1. We found that nearly all females belonging to matrilines with high average relatedness moved to RA4 while females from matrilines with low average relatedness were split between the two RAs. These results suggest that closely related maternal kin preferentially move to new RAs. However, daily roosting preferences within a RA are not based on genetic relationships probably because daily roosting associations between kin and non-kin are used to ensure adequate roost group size. Studying the effects of kinship on the fission and movements of groups not only enhances our understanding of social behaviour and population genetics but also informs conservation decisions.

show abstract

Section: Discussionmentioning

confidence: 91%

A genetic analysis of group movement in an isolated population of tree-roosting bats

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Recognition of pups by mothers and mothers by pups has been shown for a number of species underscoring the importance of parental investment toward one’s own young (such as discriminate suckling in M. lucifugus , Watt & Fenton 1995). Mothers may forage with their volent juveniles (Brigham & Brigham 1989), providing an opportunity for their juveniles to learn by observation (Gaudet & Fenton 1984) and to navigate their way back to the roost. Individual recognition could also play a role in mating interactions, allowing for preference of certain individuals over others (evidence for non‐random mating in M. lucifugus , Watt & Fenton 1995).…”

Section: Discussionmentioning

confidence: 99%

Little Brown Bats (Myotis lucifugus) Recognize Individual Identity of Conspecifics Using Sonar Calls

2008

View full text Add to dashboard Cite

Bats use sonar calls to locate prey and orient in their environment but they may also be used by conspecifics to obtain information about a caller. Statistical analysis of sonar calls provides evidence that variation carries social information about a caller, including individual identity. We hypothesized that little brown bats (Myotis lucifugus) would be able to recognize individuals given the potential fitness benefits of doing so. We performed playback trials using a habituation‐discrimination design to determine whether little brown bats are able to recognize the individual identity of a caller based on variation in their sonar calls. Each subject bat was played the calls of bat A until they habituated (defined as a 50% decrease from the beginning call rate), then the calls of bat B or a new call sequence of bat A (a control, referred to as bat A’) were played. Each subject received a unique pair of playback recordings (bat A and B) from adult female bats from the same colony (but a different colony from the subject) and the order of trials was randomized. The response measures were habituation time (s) and call rate (calls/s). Within a trial, subjects habituated to calls of bat A and transferred this habituation to the bat A’ sequence. In addition, they increased their call rates when played calls of bat B. Comparing between trials, subjects increased their call rate to the calls of bat B to a greater relative extent than to the calls of bat A’. These results provide the first evidence that bats recognize individual identity of conspecifics (as opposed to discrimination of groups), which has implications for the social interactions of bats.

show abstract

“…Post‐fledging parental care also aids young birds to learn foraging strategies from mothers (Wheelwright & Templeton 2003). Although such post‐fledging parental care is yet unknown in M. lyra , juveniles of a few other species of bat fly along with their mothers, which presumably tutor them to learn foraging skills (Vaughan & Vaughan 1987; Brigham & Brigham 1989; Kerth et al. 2001; Rossiter et al.…”

Section: Discussionmentioning

confidence: 99%

“…However, a few other species such as Noctilio albiventris (Brown et al. 1983), Desmodus rotundus (Wilkinson 1985), Lavia frons (Vaughan & Vaughan 1987) and Eptesicus fuscus (Brigham & Brigham 1989) accompany their mothers, possibly to learn foraging strategies.…”

Section: Introductionmentioning

confidence: 99%

Development of Prey Capture in the Indian False Vampire BatMegaderma Lyra

Raghuram

Marimuthu

2007

Ethology

View full text Add to dashboard Cite

We studied development of prey capture, under captive conditions, on five newly weaned Indian false vampire bats Megaderma lyra. We tested the hypothesis that the young bats are able to improve the ability of hunting by trial and error. An additional hypothesis was that their rate of prey consumption and method of handling prey improve with age. We separated the juveniles from their mothers and observed them individually at different ages. At 58 d of age, M. lyra roosted 2 m above floor level, flew down only towards moving frogs, landed >1 m away from them and returned to roosts without showing attempt to capture. At day 60, bats roosted at 50‐cm heights, landed approx. 1 m away from frogs and moved towards them. Although bats intercepted frogs, their attempts to capture were still unsuccessful. At day 62, bats landed <1 m from frogs, made similar attempts and most of them were successful. Bats carried frogs, roosted at heights of 100 cm and started consuming. Numbers of jumps made by frogs and attempts made by bats during successful captures decreased with increase in age of bats. Furthermore, the distance between landing sites of bats and places where frogs stayed during landings decreased with advancement of age. Until 75 d of age, M. lyra devoured frogs with legs‐first on significantly more occasions. After 75 d, most of the consumptions started with heads of frogs, similar to adults. Duration of feeding on single frogs was significantly longer compared with that of mothers until young were 75‐d old. The study revealed that juveniles were inefficient on localization, rate of consumption, and handling prey at earlier ages (e.g. 60 d). They became efficient on these behavioural components at later age, i.e. after 75 d. Thus, the results were in accordance with both the hypotheses. Bats did not respond to stationary frogs.

show abstract

Evidence for Association between a Mother Bat and Its Young During and After Foraging

Cited by 32 publications

References 0 publications

A genetic analysis of group movement in an isolated population of tree-roosting bats

A genetic analysis of group movement in an isolated population of tree-roosting bats

Little Brown Bats (Myotis lucifugus) Recognize Individual Identity of Conspecifics Using Sonar Calls

Development of Prey Capture in the Indian False Vampire BatMegaderma Lyra

Contact Info

Product

Resources

About