Subtle use of a disturbance mosaic by the south-eastern long-eared bat (Nyctophilus corbeni): an extinction-prone, narrow-space bat
Bradley Law A C , Leroy Gonsalves A , Mark Chidel A B and Traecey Brassil A
+ Author Affiliations
- Author Affiliations
A Forest Science, NSW Primary Industries, Locked Bag 5123, Parramatta, NSW 2124, Australia.
B Present address: The Hills Shire Council, PO Box 75 Castle Hill, NSW 1765, Australia.
C Corresponding author. Email: brad.law@dpi.nsw.gov.au
Wildlife Research 43(2) 153-168 https://doi.org/10.1071/WR15034
Submitted: 12 January 2015 Accepted: 26 February 2016 Published: 6 May 2016
Abstract
Context: Studies of habitat suitability in disturbed landscapes based on species traits can improve predictions about how alternative management strategies are likely to affect threatened species.
Aims: We studied the south-eastern long-eared bat (Nyctophilus corbeni), which represents a group of bats prone to extinction due to attributes that adapt it to flight within cluttered forest vegetation, typically making them forest-dependent. To support decisions about management of the species in timber production forests, we investigated roost selection and characterised diet in a mosaic of disturbance histories in the Pilliga forests of north-western New South Wales.
Methods: We caught 54 N. corbeni, radio-tracked 39 individuals and located 41 unique maternity roost trees. Attributes of roost trees were compared with the local neighbourhood and the landscape mosaic of habitat types and logging treatments (recently logged, recently thinned and old regrowth). Preliminary observations were collected on foraging movements. Diet was characterised for maternity and non-maternity seasons using faecal DNA techniques.
Key Results: Small maternity colonies (<10 bats) were found in hollows and fissures often in exposed locations of trees with a small diameter (means range 23–39 cm) that were usually dead (82.5% of roosts). Buloke Allocasuarina luehmannii was most commonly used for roosting (49%), yet has been overlooked previously as a source of hollows for fauna. Landscape-scale habitat use was subtle: bats avoided roosting in commercially thinned stands and selected old regrowth. Logged and mechanically thinned stands were used in proportion to availability. Nyctophilus corbeni consumed a diverse range of prey in spring (November) and autumn (March), dominated by moths.
Conclusions: Areas of high stem density, especially those containing dead trees, provide key roosting habitat for N. corbeni and this is likely to be a significant factor explaining the species rarity.
Implications: Roosting ecology as well as foraging ecology contributes to a species’ sensitivity to disturbance consistent with trait-based predictions. Heterogeneity in the landscape should be maintained when the habitat of N. corbeni is manipulated (e.g. thinned) by retaining a diversity of stem densities, including dense patches (especially with dead A. luehmannii).
References
Aldridge, H. D. J. N., and Rautenbach, I. L. (1987). Morphology, echolocation and resource partitioning in insectivorous bats. Journal of Animal Ecology 56, 763–778.| Morphology, echolocation and resource partitioning in insectivorous bats.Crossref | GoogleScholarGoogle Scholar |
Binns, D., and Beckers, D. (2001). Floristic patterns in the Pilliga. In ‘Perfumed Pineries: Environmental History of Australia’s Callitris Forests’. (Eds J. Dargavel, D. Hart and B. Libbis.) pp. 104–110. (Australian National University: Canberra.)
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 |
Bullen, R., and McKenzie, N. L. (2001). Bat airframe design: flight performance, stability and control in relation to foraging ecology. Australian Journal of Zoology 49, 235–261.
| Bat airframe design: flight performance, stability and control in relation to foraging ecology.Crossref | GoogleScholarGoogle Scholar |
Carter, G. G., and Wilkinson, G. S. (2013) Cooperation and conflict in the social lives of bats. In ‘Bat Evolution, Ecology, and Conservation’. (Eds R. Adams and S. Pedersen.) pp. 225–242. (Springer Science Press: New York.)
Caughley, G. (1994). Directions in conservation biology. Journal of Animal Ecology 63, 215–244.
| Directions in conservation biology.Crossref | GoogleScholarGoogle Scholar |
Churchill, S. (Ed.) (2008). ‘Australian Bats.’ (Reed New Holland: Sydney.)
Crome, F. H. J., and Richards, G. C. (1988). Bats and gaps: microchiropteran community structure in a Queensland rain forest. Ecology 69, 1960–1969.
| Bats and gaps: microchiropteran community structure in a Queensland rain forest.Crossref | GoogleScholarGoogle Scholar |
Clare, E. L., Fraser, E. E., Braid, H. E., Fenton, M. B., and Hebert, P. D. (2009). Species on the menu of a generalist predator, the eastern red bat (Lasiurus borealis): using a molecular approach to detect arthropod prey. Molecular Ecology 18, 2532–2542.
| 19457192PubMed |
Date, E. M., Ford, H. A., and Recher, H. F. (2002). Impacts of logging, fire and grazing regimes on bird species assemblages of the Pilliga woodlands of New South Wales. Pacific Conservation Biology 8, 177–195.
DeFoliart, G. R. (1992). Insects as human food: Gene DeFoliart discusses some nutritional and economic aspects. Crop Protection 11, 395–399.
| Insects as human food: Gene DeFoliart discusses some nutritional and economic aspects.Crossref | GoogleScholarGoogle Scholar |
Denzinger, A., and Schnitzler, H.-U. (2013). Bat guilds, a concept to classify the highly diverse foraging and echolocation behaviors of microchiropteran bats. Frontiers in Physiology 4, 1–15.
| Bat guilds, a concept to classify the highly diverse foraging and echolocation behaviors of microchiropteran bats.Crossref | GoogleScholarGoogle Scholar |
Dodd, L. E., Lacki, M. J., Britzke, E. R., Buehler, D. A., Keyser, P. D., Larkin, J. L., Rodewald, A. D., Wigley, T. B., Wood, P. B., and Rieske, L. K. (2012). Forest structure affects trophic linkages : how silvicultural disturbance impacts bats and their insect prey. Forest Ecology and Management 267, 262–270.
| Forest structure affects trophic linkages : how silvicultural disturbance impacts bats and their insect prey.Crossref | GoogleScholarGoogle Scholar |
Duncan, A. M., Baker, G. B., and Montgomery, N. (Eds.) (1999). ‘The Action Plan for Australian Bats.’ (Biodiversity Group Environment Australia: Canberra.)
Forestry Commission of NSW (1986). Management Plan for the Pilliga Management Area. Forestry Commission of New South Wales Report. (Forestry Commission of New South Wales: Sydney.).
Freeman, P. W. (1981). Correspondence of food habits and morphology in insectivorous bats. Journal of Mammalogy 62, 166–173.
| Correspondence of food habits and morphology in insectivorous bats.Crossref | GoogleScholarGoogle Scholar |
Gibbons, P., Lindenmayer, D. B., Barry, S. C., and Tanton, M. T. (2000). Hollow formation in eucalypts from temperate forests in southeastern Australia. Pacific Conservation Biology 6, 218–228.
Gonsalves, L., Bicknell, B., Law, B., Webb, C., and Monamy, V. (2013). Mosquito consumption by insectivorous bats: does size matter? PLOS One 8, e77183.
| 1:CAS:528:DC%2BC3sXhs1Cjsr3N&md5=baebf2c1902b38728ca9ada182ee8a1cCAS | 24130851PubMed |
Hanspach, J., Fischer, J., Ikin, K., Stott, J., and Law, B. S. (2012). Using trait‐based filtering as a predictive framework for conservation: a case study of bats on farms in southeastern Australia. Journal of Applied Ecology 49, 842–850.
| Using trait‐based filtering as a predictive framework for conservation: a case study of bats on farms in southeastern Australia.Crossref | GoogleScholarGoogle Scholar |
Horne, R., and Robinson, G. (1987). White cypress pine in N.S.W.: growth patterns and optimal thinning regimes for 60 to 80 year old stands. Australian Forestry 50, 216–223.
| White cypress pine in N.S.W.: growth patterns and optimal thinning regimes for 60 to 80 year old stands.Crossref | GoogleScholarGoogle Scholar |
Humes, M. L., Hayes, J. P., and Collopy, M. W. (1999). Bat activity in thinned, unthinned, and old-growth forests in western Oregon. The Journal of Wildlife Management 63, 553–561.
| Bat activity in thinned, unthinned, and old-growth forests in western Oregon.Crossref | GoogleScholarGoogle Scholar |
Jones, K. E., Purvis, A., and Gittleman, J. L. (2003). Biological correlates of extinction risk in bats. American Naturalist 161, 601–614.
| Biological correlates of extinction risk in bats.Crossref | GoogleScholarGoogle Scholar | 12776887PubMed |
Kavanagh, R. P., Stanton, M. A., and Brassil, T. E. (2007). Koalas continue to occupy their previous home-ranges after selective logging in Callitris–Eucalyptus forest. Wildlife Research 34, 94–107.
| Koalas continue to occupy their previous home-ranges after selective logging in Callitris–Eucalyptus forest.Crossref | GoogleScholarGoogle Scholar |
Knott, J. (1995). White cypress pine thinning trials of the western region. State Forests of NSW Research Paper No. 27. (State Forests of NSW: Sydney.)
Kunz, T. H., and Lumsden, L. F. (2003). Ecology of cavity and foliage roosting bats. In ‘Bat Ecology’. (Eds T. H. Kunz and M. B. Fenton.) pp. 3–89. (University of Chicago Press: Chicago, IL.)
Kurta, A., Bell, G. P., Nagy, K. A., and Kunz, T. H. (1989). Energetics of pregnancy and lactation in freeranging little brown bats (Myotis lucifugus). Physiological Zoology 62, 804–818.
| Energetics of pregnancy and lactation in freeranging little brown bats (Myotis lucifugus).Crossref | GoogleScholarGoogle Scholar |
Law, B., Tap, P., and Chidel, M. (2011a). Bat activity in ephemeral stream-beds in the Pilliga forests: clarifying the importance of flyways and buffer widths in open forest and woodland. In ‘The Biology and Conservation of Australasian Bats’. (Eds B. Law, P. Eby, D. Lunney and L. Lumsden.) pp. 308–321. (Royal Zoological Society of New South Wales: Sydney.)
Law, B. S., Chidel, M., and Penman, T. (2011b). Do young eucalypt plantations benefit bats in an intensive agricultural landscape? Wildlife Research 38, 173–187.
| Do young eucalypt plantations benefit bats in an intensive agricultural landscape?Crossref | GoogleScholarGoogle Scholar |
Likens, G. E., and Lindenmayer, D. B. (2012). Integrating approaches leads to more effective conservation of biodiversity. Biodiversity and Conservation 21, 3323–3341.
| Integrating approaches leads to more effective conservation of biodiversity.Crossref | GoogleScholarGoogle Scholar |
Lumsden, L. F., Bennett, A. F., and Silins, J. E. (2002a). Selection of roost sites by the lesser long-eared bat (Nyctophilus geoffroyi) and Gould’s wattled bat (Chalinolobus gouldii) in south-eastern Australia. Journal of Zoology 257, 207–218.
| Selection of roost sites by the lesser long-eared bat (Nyctophilus geoffroyi) and Gould’s wattled bat (Chalinolobus gouldii) in south-eastern Australia.Crossref | GoogleScholarGoogle Scholar |
Lumsden, L. F., Bennett, A. F., and Silins, J. E. (2002b). Location of roosts of the lesser long-eared bat Nyctophilus geoffroyi and Gould’s wattled bat Chalinolobus gouldii in a fragmented landscape in south-eastern Australia. Biological Conservation 106, 237–249.
| Location of roosts of the lesser long-eared bat Nyctophilus geoffroyi and Gould’s wattled bat Chalinolobus gouldii in a fragmented landscape in south-eastern Australia.Crossref | GoogleScholarGoogle Scholar |
Lumsden, L., Nelson, J., and Lindeman, M. (2008). Ecological research on the eastern long-eared bat Nyctophilus timoriensis (south-eastern form). A report to the Mallee Catchment Management Authority. Arthur Rylah Institute for Environmental Research, Department of Sustainability and Environment, Melbourne.
Lumsden, L., Nelson, J., Jemison, M., and Lennox, E. (2011). Survey of roost sites of the south-eastern longeared bat at Nowingi. Unpublished report to the Mallee Catchment Management Authority. Arthur Rylah Institute for Environmental Research, Department of Sustainability and Environment, Melbourne.
Lunney, D., Barker, J., Priddel, D., and Oconnell, M. (1988). Roost selection by Gould’s Long-eared Bat, Nyctophilus-Gouldi Tomes (Chiroptera, Vespertilionidae), in logged forest on the south coast of New South-Wales. Wildlife Research 15, 375–384.
| Roost selection by Gould’s Long-eared Bat, Nyctophilus-Gouldi Tomes (Chiroptera, Vespertilionidae), in logged forest on the south coast of New South-Wales.Crossref | GoogleScholarGoogle Scholar |
Lunney, D., Parnaby, H., Pennay, M., Haering, R., Law, B., Eby, P., Schulz, M., and Turbill, C. (2011). The Priorities Action Statement (PAS) for the threatened bats of New South Wales. In ‘Biology and Conservation of Australasian Bats’. (Eds B. Law, P. Eby, D. Lunney and L. Lumsden) pp. 340-356. (Royal Zoological Society of New South Wales: Sydney.)
Maron, M. (2007). Threshold effect of eucalypt density on an aggressive avian competitor. Biological Conservation 136, 100–107.
| Threshold effect of eucalypt density on an aggressive avian competitor.Crossref | GoogleScholarGoogle Scholar |
McConville, A., Law, B., Penman, T., and Mahony, M. (2014). Contrasting habitat use of morphologically similar bat species with differing conservation status in south-eastern Australia. Austral Ecology 39, 83–94.
| Contrasting habitat use of morphologically similar bat species with differing conservation status in south-eastern Australia.Crossref | GoogleScholarGoogle Scholar |
McKenzie, N. L., and Rolfe, J. K. (1986). Structure of bat guilds in the Kimberley mangroves, Australia. Journal of Animal Ecology 55, 401–420.
| Structure of bat guilds in the Kimberley mangroves, Australia.Crossref | GoogleScholarGoogle Scholar |
Nams, V. O. (2006). Locate III User’s Guide. Pacer Computer Software: Nova Scotia. Available at http://www.locateiii.com
Neu, C. W., Byers, C. R., and Peek, J. M. (1974). A technique for analysis of utilization-availability data. The Journal of Wildlife Management 38, 541–545.
| A technique for analysis of utilization-availability data.Crossref | GoogleScholarGoogle Scholar |
Norberg, U. M., and Rayner, J. M. (1987). Ecological morphology and flight in bats (Mammalia; Chiroptera): wing adaptations, flight performance, foraging strategy and echolocation. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 316, 335–427.
| Ecological morphology and flight in bats (Mammalia; Chiroptera): wing adaptations, flight performance, foraging strategy and echolocation.Crossref | GoogleScholarGoogle Scholar |
Office of Environment and Heritage (2014). Corben’s Long-eared Bat (Nyctophilus corbeni). Available at http://www.environment.nsw.gov.au/savingourspeciesapp/project.aspx?ProfileID=10568 [Verified 7 April 2016]
O’Neill, M. G., and Taylor, R. J. (1989). Feeding ecology of Tasmanian bat assemblages. Australian Journal of Ecology 14, 19–31.
| Feeding ecology of Tasmanian bat assemblages.Crossref | GoogleScholarGoogle Scholar |
Parnaby, H. E. (2009). A taxonomic review of Australian greater long-eared bats previously known as Nyctophilus timoriensis (Chiroptera: Vespertilionidae) and some associated taxa. Australian Zoologist 35, 39–81.
| A taxonomic review of Australian greater long-eared bats previously known as Nyctophilus timoriensis (Chiroptera: Vespertilionidae) and some associated taxa.Crossref | GoogleScholarGoogle Scholar |
Parnaby, H., Lunney, D., Shannon, I., and Fleming, M. (2010). Collapse rates of hollow-bearing trees following low intensity prescription burns in the Pilliga forests, New South Wales. Pacific Conservation Biology 16, 209.
Parnaby, H., Lunney, D., and Fleming, M. (2011). Four issues influencing the management of hollow-using bats of the Pilliga forests of inland New South Wales. In ‘The Biology and Conservation of Australasian Bats’. (Eds B. Law, P. Eby, D. Lunney and L. Lumsden.) pp. 399–420. (Royal Zoological Society of New South Wales: Sydney.)
Patriquin, K. J., and Barclay, R. M. (2003). Foraging by bats in cleared, thinned and unharvested boreal forest. Journal of Applied Ecology 40, 646–657.
| Foraging by bats in cleared, thinned and unharvested boreal forest.Crossref | GoogleScholarGoogle Scholar |
Pavey, C. R., Grunwald, J. E., and Neuweiler, G. (2001). Foraging habitat and echolocation behaviour of Schneider’s leafnosed bat, Hipposideros speoris, in a vegetation mosaic in Sri Lanka. Behavioral Ecology and Sociobiology 50, 209–218.
| Foraging habitat and echolocation behaviour of Schneider’s leafnosed bat, Hipposideros speoris, in a vegetation mosaic in Sri Lanka.Crossref | GoogleScholarGoogle Scholar |
Pollard, J. H. (1971). On distance estimators of density in randomly distributed forests. Biometrics 27, 991–1002.
| On distance estimators of density in randomly distributed forests.Crossref | GoogleScholarGoogle Scholar |
Rolls, E. C. (Ed.) (1981). ‘A Million Wild Acres: 200 Years of Man and an Australian Forest.’ (Nelson: Melbourne.)
Safi, K., and Kerth, G. (2004). A comparative analysis of specialization and extinction risk in temperate‐zone bats. Conservation Biology 18, 1293–1303.
| A comparative analysis of specialization and extinction risk in temperate‐zone bats.Crossref | GoogleScholarGoogle Scholar |
Simberloff, D. (1998). Flagships, umbrellas, and keystones: is single-species management passe in the landscape era? Biological Conservation 83, 247–257.
| Flagships, umbrellas, and keystones: is single-species management passe in the landscape era?Crossref | GoogleScholarGoogle Scholar |
Speakman, J. R., and Racey, P. A. (1987). The energetics of pregnancy and lactation in the brown long-eared bat, Plecotus auritus. In ‘Recent Advances in the Study of Bats’. (Eds M. B. Fenton, P. A. Racey and J. M. V. Rayner.) pp. 367-393. (Cambridge University Press: Cambridge.)
Threlfall, C. G., Law, B., and Banks, P. B. (2013). Roost selection in suburban bushland by the urban sensitive bat Nyctophilus gouldi. Journal of Mammalogy 94, 307–319.
| Roost selection in suburban bushland by the urban sensitive bat Nyctophilus gouldi.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. 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., and Ellis, M. (2006). Distribution and abundance of the south-eastern form of the greater long-eared bat Nyctophilus timoriensis. Australian Mammalogy 28, 1–6.
| Distribution and abundance of the south-eastern form of the greater long-eared bat Nyctophilus timoriensis.Crossref | GoogleScholarGoogle Scholar |
van Kempen, E. (Ed.) (1997). ‘A History of the Pilliga Cypress Pine Forests.’ (State Forests of New South Wales: Sydney.)
Vestjens, W. J. M., and Hall, L. S. (1977). Stomach contents of forty-two species of bats from the Australasian region. Wildlife Research 4, 25–35.
| Stomach contents of forty-two species of bats from the Australasian region.Crossref | GoogleScholarGoogle Scholar |
Webala, P. W., Craig, M. D., Law, B. S., Wayne, A. F., and Bradley, J. S. (2010). Roost site selection by southern forest bat Vespadelus regulus and Gould’s long-eared bat Nyctophilus gouldi in logged jarrah forests; south-western Australia. Forest Ecology and Management 260, 1780–1790.
| Roost site selection by southern forest bat Vespadelus regulus and Gould’s long-eared bat Nyctophilus gouldi in logged jarrah forests; south-western Australia.Crossref | GoogleScholarGoogle Scholar |
Whipp, R. K., Lunt, I. D., Spooner, P. G., and Bradstock, R. A. (2012). Changes in forest structure over 60 years: tree densities continue to increase in the Pilliga forests, New South Wales, Australia. Australian Journal of Botany 60, 1–8.
| Changes in forest structure over 60 years: tree densities continue to increase in the Pilliga forests, New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |
White, G. C., and Garrott, R. A. (Eds) (1990). ‘Analysis of Wildlife Radiotracking Data.’ (Academic Press: San Diego, CA.)
Zeale, M. R., Butlin, R. K., Barker, G. L., Lees, D. C., and Jones, G. (2011). Taxon‐specific PCR for DNA barcoding arthropod prey in bat faeces. Molecular Ecology Resources 11, 236–244.
| Taxon‐specific PCR for DNA barcoding arthropod prey in bat faeces.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3MXks1Kiurs%3D&md5=a2693643f60760dea23201c6a72dd45dCAS | 21429129PubMed |
