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Australian Mammalogy Australian Mammalogy Society
Journal of the Australian Mammal Society
RESEARCH ARTICLE

Capture and care of northern long-eared bats (Nyctophilus bifax) and seasonal changes in insect abundance

Clare Stawski
+ Author Affiliations
- Author Affiliations

Centre for Behavioural and Physiological Ecology, Zoology, University of New England, Armidale, NSW 2351, Australia. Present address: Institute of Environmental Sciences, Jagiellonian University, ul. Gronostajowa 7, 30-387, Kraków, Poland. Email: clare.stawski@gmail.com

Australian Mammalogy 34(2) 245-250 https://doi.org/10.1071/AM11043
Submitted: 16 June 2011  Accepted: 10 February 2012   Published: 25 May 2012

Abstract

Seasonal capture rates of insectivorous subtropical and tropical Australian northern long-eared bats (Nyctophilus bifax) (Chiroptera: Vespertilionidae) in relation to ambient temperature and insect abundance were examined. Insect abundance varied seasonally in a subtropical region and also between subtropical and tropical habitats during winter, and decreased as nightly ambient temperature decreased. While capture rates of N. bifax were not affected by ambient temperatures and insect abundance, most captures occurred within one hour after sunset, which is generally the time of highest activity levels in microbats. Methods of care of N. bifax in captivity are also reported. N. bifax adapted well to short-term captivity (up to 14 days) and readily accepted mealworms as a food source.

Additional keywords: flight tent, light traps, mist nets


References

Ashdown, R. A. M., and McKechnie, A. E. (2008). Environmental correlates of freckled nightjar (Caprimulgus tristigma) activity in a seasonal subtropical habitat. Journal für Ornithologie 149, 615–619.
Environmental correlates of freckled nightjar (Caprimulgus tristigma) activity in a seasonal subtropical habitat.Crossref | GoogleScholarGoogle Scholar |

Australian Bureau of Meteorology (2010). Australian Government Bureau of Meteorology. Available at http://www.bom.gov.au [accessed 17 March 2010].

Barclay, R. M. R., and Brigham, R. M. (1991). Prey detection, dietary niche breadth, and body size in bats: why are aerial insectivorous bats so small? American Naturalist 137, 693–703.
Prey detection, dietary niche breadth, and body size in bats: why are aerial insectivorous bats so small?Crossref | GoogleScholarGoogle Scholar |

Barnard, S. M. (2010). ‘Bats in Captivity – Volume 2: Aspects of Rehabilitation.’ (Logos Press: Washington, DC.)

Brigham, R. M., and Geiser, F. (1998). Seasonal activity patterns of two species of Nyctophilus bats based on mist-net captures. Australian Mammalogy 20, 349–352.

Brigham, R. M., Francis, R. L., and Hamdorf, S. (1997). Microhabitat use by two species of Nyctophilus bats: a test of ecomorphology theory. Australian Journal of Zoology 45, 553–560.
Microhabitat use by two species of Nyctophilus bats: a test of ecomorphology theory.Crossref | GoogleScholarGoogle Scholar |

Churchill, S. (2008). ‘Australian Bats.’ 2nd edn. (Allen and Unwin: Sydney.)

Crome, F. H. J., and Richards, G. C. (1988). Bats and gaps: microchiropteran community structure in a Queensland rainforest. Ecology 69, 1960–1969.
Bats and gaps: microchiropteran community structure in a Queensland rainforest.Crossref | GoogleScholarGoogle Scholar |

Duvergé, P. L., Jones, G., Rydell, J., and Ransome, R. D. (2000). Functional significance of emergence timing in bats. Ecography 23, 32–40.
Functional significance of emergence timing in bats.Crossref | GoogleScholarGoogle Scholar |

Ellis, W. A. H., Marples, T. G., and Phillips, W. R. (1991). The effects of a temperature-determined food supply on the annual activity cycle of the lesser long-eared bat, Nyctophilus geoffroyi Leach, 1821 (Microchiroptera: Vespertilionidae). Australian Journal of Zoology 39, 263–271.
The effects of a temperature-determined food supply on the annual activity cycle of the lesser long-eared bat, Nyctophilus geoffroyi Leach, 1821 (Microchiroptera: Vespertilionidae).Crossref | GoogleScholarGoogle Scholar |

Fenton, M. B. (1983). ‘Just Bats.’ (University of Toronto Press: Toronto.)

Finke, M., and Winn, D. (2004). Insects and related arthropods: a nutritional primer for rehabilitators. Journal of Wildlife Rehabilitation 27, 14–27.

Grant, J. D. A. (1991). Prey location by two Australian long-eared bats, Nyctophilus gouldi and N. geoffroyi. Australian Journal of Zoology 39, 45–56.
Prey location by two Australian long-eared bats, Nyctophilus gouldi and N. geoffroyi.Crossref | GoogleScholarGoogle Scholar |

Hall, L. S. (1982). Management of Microchiroptera in captivity. In ‘The Management of Australian Mammals in Captivity. Proceedings of the Scientific Meeting of the Australian Mammal Society, Healesville, Victoria, February 1979’. (Ed. D. D. Evans.) pp. 157–160. (The Zoological Board of Victoria: Melbourne.)

Hopkins, C. S. (1989). Carnivorous and insectivorous bats. In ‘Care and Handling of Australian Native Animals: Emergency Care and Captive Management’. (Ed. S. J. Hand.) pp. 171–184. (Surrey Beatty in association with Royal Zoological Society of New South Wales: Sydney.)

Hosken, D. J., Bailey, W. J., O’Shea, J. E., and Roberts, J. D. (1994). Localisation of insect calls by the bat Nyctophilus geoffroyi (Chiroptera: Vespertilionidae): a laboratory study. Australian Journal of Zoology 42, 177–184.
Localisation of insect calls by the bat Nyctophilus geoffroyi (Chiroptera: Vespertilionidae): a laboratory study.Crossref | GoogleScholarGoogle Scholar |

Humphrey, S. R., Richter, A. R., and Cope, J. B. (1977). Summer habitat and ecology of the endangered Indiana bat, Myotis sodalis. Journal of Mammalogy 58, 334–346.
Summer habitat and ecology of the endangered Indiana bat, Myotis sodalis.Crossref | GoogleScholarGoogle Scholar |

Jackson, S. (2003). ‘Australian Mammals: Biology and Captive Management.’ (CSIRO Publishing: Melbourne.)

Jetz, W., Steffen, J., and Linsenmair, K. E. (2003). Effects of light and prey availability on nocturnal, lunar and seasonal activity of tropical nightjars. Oikos 103, 627–639.
Effects of light and prey availability on nocturnal, lunar and seasonal activity of tropical nightjars.Crossref | GoogleScholarGoogle Scholar |

Kunz, T. H. (1988). Methods of assessing the availability of prey to insectivorous bats. In ‘Ecological and Behavioural Methods for the Study of Bats’. (Ed. T. H. Kunz.) pp. 191–210. (Smithsonian Institution Press: Washington, DC.)

Lunney, D., Barker, J., Leary, T., Priddel, D., Wheeler, R., O’Connor, P., and Law, B. (1995). Roost selection by the north Queensland long-eared bat Nyctophilus bifax in littoral rainforest in the Iluka World Heritage Area, New South Wales. Australian Journal of Ecology 20, 532–537.
Roost selection by the north Queensland long-eared bat Nyctophilus bifax in littoral rainforest in the Iluka World Heritage Area, New South Wales.Crossref | GoogleScholarGoogle Scholar |

Milne, D. J., Fisher, A., Rainey, I., and Pavey, C. R. (2005). Temporal patterns of bats in the top end of the Northern Territory, Australia. Journal of Mammalogy 86, 909–920.
Temporal patterns of bats in the top end of the Northern Territory, Australia.Crossref | GoogleScholarGoogle Scholar |

O’Shea, T. J., and Vaughan, T. A. (1977). Nocturnal and seasonal activities of the pallid bat, Antrozous pallidus. Journal of Mammalogy 58, 269–284.
Nocturnal and seasonal activities of the pallid bat, Antrozous pallidus.Crossref | GoogleScholarGoogle Scholar |

Paige, K. N. (1995). Bats and barometric pressure: conserving limited energy and tracking insects from the roost. Functional Ecology 9, 463–467.
Bats and barometric pressure: conserving limited energy and tracking insects from the roost.Crossref | GoogleScholarGoogle Scholar |

Pavey, C. R., and Burwell, C. J. (2004). Foraging ecology of the horseshoe bat, Rhinolophus megaphyllus (Rhinolophidae), in eastern Australia. Wildlife Research 31, 403–413.
Foraging ecology of the horseshoe bat, Rhinolophus megaphyllus (Rhinolophidae), in eastern Australia.Crossref | GoogleScholarGoogle Scholar |

Pavey, C. R., Burwell, C. J., Grunwald, J. E., Marshall, C. J., and Neuweiler, G. (2001). Dietary benefits of twilight foraging by the insectivorous bat Hipposideros speoris. Biotropica 33, 670–681.

Phillips, W. R., and Inwards, S. J. (1985). The annual activity and breeding cycles of Gould’s long-eared bat, Nyctophilus gouldi (Microchiroptera: Vespertilionidae). Australian Journal of Zoology 33, 111–126.
The annual activity and breeding cycles of Gould’s long-eared bat, Nyctophilus gouldi (Microchiroptera: Vespertilionidae).Crossref | GoogleScholarGoogle Scholar |

Rautenbach, I. L., Kemp, A. C., and Scholtz, C. H. (1988). Fluctuations in availability of arthropods correlated with microchiropteran and avian predator activities. Koedoe 31, 77–90.

Richards, G. C. (1989). Nocturnal activity of insectivorous bats relative to temperature and prey availability in tropical Queensland. Australian Wildlife Research 16, 151–158.
Nocturnal activity of insectivorous bats relative to temperature and prey availability in tropical Queensland.Crossref | GoogleScholarGoogle Scholar |

Schaffers, A. P., Raemakers, I. P., Sýkora, K. V., and Braak, C. J. F. (2008). Arthropod assemblages are best predicted by plant species composition. Ecology 89, 782–794.
Arthropod assemblages are best predicted by plant species composition.Crossref | GoogleScholarGoogle Scholar |

Silva, N. A. P., Frizzas, M. R., and Oliveira, C. M. (2011). Seasonality in insect abundance in the “Cerrado” of the Goiás State, Brazil. Revista Brasileira de Entomologia 55, 79–87.
Seasonality in insect abundance in the “Cerrado” of the Goiás State, Brazil.Crossref | GoogleScholarGoogle Scholar |

Speakman, J. R. (1991). Why do insectivorous bats in Britain not fly in daylight more frequently? Functional Ecology 5, 518–524.
Why do insectivorous bats in Britain not fly in daylight more frequently?Crossref | GoogleScholarGoogle Scholar |

Stawski, C., and Geiser, F. (2010a). Seasonality of torpor patterns and physiological variables of a free-ranging subtropical bat. The Journal of Experimental Biology 213, 393–399.
Seasonality of torpor patterns and physiological variables of a free-ranging subtropical bat.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC3c%2FksVagtw%3D%3D&md5=4004b0ee12a82448aafa7bef5640c795CAS |

Stawski, C., and Geiser, F. (2010b). Fat and fed: frequent use of summer torpor in a subtropical bat. Naturwissenschaften 97, 29–35.
Fat and fed: frequent use of summer torpor in a subtropical bat.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1MXhsFOqurvK&md5=f097a0885939ed27702884627c672468CAS |

Stawski, C., and Geiser, F. (2011). Do season and distribution affect thermal energetics of a hibernating bat endemic to the tropics and subtropics? The American Journal of Physiology 301, R542–R547.
| 1:CAS:528:DC%2BC3MXhtFSrtbrK&md5=4d00e0752fa8ae168b080079b343ca17CAS |

Taylor, L. R. (1963). Analysis of the effect of temperature on insects in flight. Journal of Animal Ecology 32, 99–117.
Analysis of the effect of temperature on insects in flight.Crossref | GoogleScholarGoogle Scholar |

Taylor, R. J., and O’Neill, M. G. (1988). Summer activity patterns of insectivorous bats and their prey in Tasmania. Australian Wildlife Research 15, 533–539.
Summer activity patterns of insectivorous bats and their prey in Tasmania.Crossref | GoogleScholarGoogle Scholar |

Tidemann, C. R., and Woodside, D. P. (1978). A collapsible bat-trap and a comparison of results obtained with the trap and with mist-nets. Australian Wildlife Research 5, 355–362.
A collapsible bat-trap and a comparison of results obtained with the trap and with mist-nets.Crossref | GoogleScholarGoogle Scholar |

Turbill, C. (2008). Winter activity of Australian tree-roosting bats: influence of temperature and climatic patterns. Journal of Zoology 276, 285–290.
Winter activity of Australian tree-roosting bats: influence of temperature and climatic patterns.Crossref | GoogleScholarGoogle Scholar |

Turbill, C. (2009). Temperature effects of metabolic rate and torpor in southern forest bats (Vespadelus regulus). Australian Journal of Zoology 57, 125–127.
Temperature effects of metabolic rate and torpor in southern forest bats (Vespadelus regulus).Crossref | GoogleScholarGoogle Scholar |

Turbill, C., Körtner, G., and Geiser, F. (2008). Timing of the daily temperature cycle affects the critical arousal temperature and energy expenditure of lesser long-eared bats. The Journal of Experimental Biology 211, 3871–3878.
Timing of the daily temperature cycle affects the critical arousal temperature and energy expenditure of lesser long-eared bats.Crossref | GoogleScholarGoogle Scholar |

Vestjens, W. J. M., and Hall, L. S. (1977). Stomach contents of forty-two species of bats from the Australasian region. Australian Wildlife Research 4, 25–35.
Stomach contents of forty-two species of bats from the Australasian region.Crossref | GoogleScholarGoogle Scholar |

Williams, C. B. (1961). Studies in the effect of weather conditions on the activity and abundance of insect populations. Philosophical Transactions of the Royal Society of London. B 244, 331–378.
Studies in the effect of weather conditions on the activity and abundance of insect populations.Crossref | GoogleScholarGoogle Scholar |