The efficacy of acoustic techniques to infer differential ose of habitat by bats

• Autorzy: Sherwin R.E. , Gannon W. L. , Haymond S.
• Języki publikacji: EN

Abstrakty

EN

The use of acoustic detectors to investigate differential use of habitat by bats has become increasingly common. However, in many of these studies, authors failed to clearly articulate assumptions a priori. For example, spatial and temporal scales were rarely defined. True replication is rarely reported, suggesting that authors assume that these systems are both spatially and temporally static. In this study, we attempted to clearly identify underlying assumptions of this technique, thereby limiting level of inference to a clearly defined and repeatable degree. We followed strict assumptions beforehand and were able to classify bat calls into guilds based on acoustic data. Lack of experience in acoustic identification by technicians did not affect the outcome, as guilds were based on bat call sequences following strict rules of classification. Individuals in guilds were not randomly distributed across sample locations. However, distribution of guild members did not suggest differential use of habitat, as within habitat variation was often greater than that observed among types of habitat. Explicitly stating assumptions before surveys were conducted ‘protected’ us from making incorrect inferences. We suggest that care be taken when attempting to infer differential use of habitat by bats using acoustic techniques.

• Wydawca: -
• Czasopismo: Acta Chiropterologica
• Rocznik: 2000
• Tom: 02
• Numer: 2
• Opis fizyczny: p.145-153,fig.,ref.

Twórcy

autor

Sherwin R.E.

• Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA

autor

Gannon W. L.

autor

Haymond S.

Bibliografia

• Aldridge, H. D. J. N., and I. L. Rautenbach. 1987. Morphology, echolocation and resource partitioning in insectivorous bats. Journal of Animal Ecology, 56: 763-778.
• Altringham, J. D. 1996. Bats: biology and behavior. Oxford University Press, Inc., New York, 262 pp.
• Barclay, R. M. R. 1999. Bats are not birds — a cautionary note on using echolocation calls to identify bats: a comment. Journal of Mammalogy, 80: 290-296.
• Bell, G. P. 1980. Habitat use and response to patches of prey by desert insectivorous bats. Canadian Journal of Zoology, 58: 1876-1883.
• Bogdanowicz, W., M. B. Fenton, and K. Daleszczyk. 1999. The relationships between echolocation calls, morphology, and diet in insectivorous bats. Journal of Zoology (London), 247: 381-393.
• Brigham, R. M., S. D., Grindal, and M. C. Firman. 1997. The influence of structural clutter on activity patterns of insectivorous bats. Canadian Journal of Zoology, 75: 131-136.
• Burford, L. S., and M. J. Lacki. 1995. Habitat use by Corynorhinus townsendii virginianus in the Daniel Boone National Forest. American Midland Naturalist, 134: 340-345.
• Cole, F. R., and D. E. Wilson. 1996. Mammalian Diversity and Natural History. Pp. 9-39, in Measuring and monitoring biological diversity: standard methods for mammals (D. E. Wilson, F. R. Cole, J. D. Nichols, R. Rudran, and M. S. Foster, eds.). Smithsonian Institution Press, Washington, D.C., 409 pp.
• Crampton, L. H., and R. M. R. Barclay. 1998. Selection of roosting and foraging habitat by bats in different aged aspen mixed wood stands. Conservation Biology, 12: 1347-1358.
• Crome, F. H. J., and G. C. Richards. 1988. Bats and gaps: microchiropteran community structure in a Queensland rain forest. Ecology, 69: 1960-1969.
• Day, G. I., S. D. Schemnitz, and R. D. Taber. 1980. Capturing and marking wild animals. Pp. 277-318, in Wildlife management techniques manual (S. D. Schemnitz, ed.). The Wildlife Society, Inc., 633 pp.
• Estrada, A., R. Coates-Estrada, and D. Meritt, Jr. 1993. Bat species richness and abundance in tropical rain forest fragments and in agricultural habitats at Los Tuxtlas, Mexico. Ecography, 16: 309-318.
• Fenton, M. B. 1970. A technique for monitoring bat activity with results obtained from different environments in southern Ontario. Canadian Journal of Zoology, 48: 847-851.
• Fullard, J. H., C. Koehler, A. Surlykke, and N. L. McKenzie. 1991. Echolocation ecology and flight morphology of insectivorous bats (Chiroptera) in south western Australia. Australia Journal of Zoology, 39: 427- 438.
• Hayes, J. P. 1997. Temporal variation in activity of bats and the design of echolocation-monitoring studies. Journal of Mammalogy, 78: 514-524.
• Haymond, S. 1998. Summer habitat use by three vespertilionid bats in sagebrush steppe in southeastern Idaho. M.Sci. Thesis, Brigham Young University, Provo, Utah, USA, 85 pp.
• Kunz, T. H., and A. Kurta. 1988. Capture methods and holding devices. Pp. 1-29, in Ecological and behavioral methods for the study of bats (T. H. Kunz, ed.). Smithsonian Institution Press, Washington, D.C., 533 pp.
• Krusic, R. A., M. Tamasaki, C. D. Neefus, and P. J. Pekins. 1996. Bat habitat use in White Mountain National Forest. Journal of Wildlife Management, 60: 625-631.
• Ludwig, J. A., and J. F. Reynolds. 1988. Statistical ecology: a primer on methods and computing. John Wiley and Sons, New York, 337 pp.
• Neuweiler, G., S. Singh, and K. Sripathi. 1984. Audiograms of a south Indian bat community. Journal of Comparative Physiology, 154: 133-142.
• Norberg, U. M., and J. M. V. Rayner. 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 B, 316: 335-427.
• O’Farrell, M. J. and W. L. Gannon. 1999. A comparison of acoustic versus capture techniques for the inventory of bats. Journal of Mammalogy, 80: 24-30.
• O’Farrell, M. J., B. W. Miller, and W. L. Gannon. 1999. Qualitative identification of free-flying bats using the Anabat detector. Journal of Mammalogy, 80: 11-23.
• Thomas, D. W. 1988. The distribution of bats in different ages of Douglas-fir forests. Journal of Wildlife Management, 52: 619-626.
• Verboom, B., and K. Spoelstra. 1999. Effects of food abundance and wind on the use of tree lines by an insectivorous bat, Pipistrellus pipistrellus. Canadian Journal of Zoology, 77: 1393-1401. Wilson, D. E., J. D. Nichols, R. Rudran, and C. Southwell. 1996. Introduction: biodiversity at ecosystem, community and population levels. Pp. 1-8, in Measuring and monitoring biological diversity: standard methods for mammals (D. E. Wilson, F. R. Cole, J. D. Nichols, R. Rudran, and M. S. Foster, eds.). Smithsonian Institution Press, Washington, D.C., 409 pp.

Uwagi

rekord w opracowaniu