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2003 | 05 | 2 |
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A prospective power analysis and review of habitat characteristics used in studies of tree-roosting bats

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We identified 25 studies published between 1988 and 2001 that measured characteristics of roosting sites of tree-roosting bats, and where measures were compared to characteristics of random or available locations. The most frequently measured habitat characteristics were roost-tree diameter (n = 23), roost-tree height (21), roost-tree canopy cover (16), roost height (14), and slope (10). Habitat characteristics of the roost tree itself were measured more frequently than stand or landscape characteristics; a total of 31 different habitat characteristics was used to describe stand or landscape conditions as opposed to 23 different habitat characteristics used to describe features of the roost tree. The overall mean (± SE) number of habitat characteristics examined per study was 8.0 ± 1.1, with an average of 4.2 ± 0.7 characteristics reported to be significant (P < 0.05). Mean estimated effect size, or the absolute value of the difference between means divided by the population standard deviation, of habitat characteristics ranged from 0.83 to 1.52. A sample size of 11 radio-tagged bats was sufficient to achieve acceptable power, i.e., 0.80, for all habitat characteristics examined when only using the upper limit of the 95% confidence intervals for estimated effect sizes. In contrast, a sample size of 39 radio-tagged bats was sufficient in achieving the same level of power for only 50% of the habitat characteristics evaluated at the lower end of the 95% confidence intervals. We encourage researchers to conduct pilot studies, and estimate effect sizes and variances to assess the level of sampling effort required to evaluate habitat characteristics in studies of tree-roosting bats.
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  • Department of Forestry, University of Kentucky, Lexington, KY 40546, USA
  • Anderson, D. R., K. P. Burnham, W. R. Gould, and S. Cherry. 2001. Concern about finding effects that are actually spurious. Wildlife Society Bulletin, 29: 311-316.
  • Barclay, R. M. R., P. A. Faure, and D. R. Farr. 1988. Roosting behavior and roost selection by migrating silver-haired bats (Lasionycteris noctivagans). Journal of Mammalogy, 69: 821-825.
  • Betts, B. J. 1996. Roosting behavior of silver-haired bats (Lasionycteris noctivagans) and big brown bats (Eptesicus fuscus) in Northeast Oregon. Pp. 55-61, in Bats and forests symposium (R. M. R. Barclay and R. M. Brigham, eds.). British Columbia Ministry of Forests, Victoria, British Columbia, 292 pp.
  • Betts, B. J. 1998. Roosts used by maternity colonies of silver-haired bats in northeastern Oregon. Journal of Mammalogy, 79: 643-650.
  • Boonman, M. 2000. Roost selection by noctules (Nyctalus noctula) and Daubenton’s bats (Myotis daubentonii). Journal of Zoology (London), 251: 385-389.
  • Breslow, N. E., and N. E. Day. 1980. Statistical methods in cancer research. Volume 1: The analysis of case control studies. International Agency for Research on Cancer Scientific Publication, Lyon, 32: 1-350.
  • Brigham, R. M., and R. M. R. Barclay. 1996. Bats and forests. Pp. xi -xiv, in Bats and forests symposium (R. M. R. Barclay and R. M. Brigham, eds.). British Columbia Ministry of Forests, Victoria, 292 pp.
  • Brigham, R. M., M. J. Vonhof, R. M. R. Barclay, and J. C. Gwilliam. 1997. Roosting behavior and roost-site preferences of forest-dwelling California bats (Myotis californicus). Journal of Mammalogy, 78: 1231-1239.
  • Callahan, E. V., R. D. Drobney, and R. L. Clawson. 1997. Selection of summer roosting sites by Indiana bats (Myotis sodalis) in Missouri. Journal of Mammalogy, 78: 818-825.
  • Campbell, L. A., J. G. Hallett, and M. A. O’Connell. 1996. Conservation of bats in managed forests: use of roosts by Lasionycteris noctivagans. Journal of Mammalogy, 77: 976-984.
  • Cohen, J. 1988. Statistical power analysis for the behavioral sciences. Second ed. Lawrence Erlbaum, Hillsdale, New Jersey, 567 pp.
  • Crampton, L. H., and R. M. R. Barclay. 1998. Selection of roosting and foraging habitat by bats in different-aged aspen mixedwood stands. Conservation Biology, 12: 1347-1358.
  • Cryan, P. M., M. A. Bogan, and G. M. Yanega. 2001. Roosting habits of four bat species in the Black Hills of South Dakota. Acta Chiropterologica, 3: 43-52.
  • Dear, K., and C. Begg. 1992. An approach for assessing publication bias prior to performing a meta-analysis. Statistical Science, 7: 237-245.
  • Eberhardt, L. L., and J. M. Thomas. 1991. Designing environmental field studies. Ecological Monographs, 61: 53-73.
  • Fenton, M. B. 1997. Science and the conservation of bats. Journal of Mammalogy, 78: 1-14.
  • Foster, R. W., and A. Kurta. 1999. Roosting ecology of the northern bat (Myotis septentrionalis) and comparisons with the endangered Indiana bat (Myotis sodalis). Journal of Mammalogy, 80: 659-672.
  • Gerard, P. D., D. R. Smith, and G. Weerakody. 1998. Limits of retrospective power analysis. Journal of Wildlife Management, 62: 801-807.
  • Grindal, S. D. 1999. Habitat use by bats, Myotis spp., in western Newfoundland. Canadian Field- Naturalist, 113: 258-263.
  • Hayes, J. P. In press. Habitat ecology and conservation of bats in western coniferous forests. In Conservation of small mammals in western coniferous forests (C. J. Zabel and R. G. Anthony, eds.). Island Press, Covela, CA.
  • Hayes, J. P., and R. J. Steidl. 1997. Statistical power analysis and amphibian population trends. Conservation Biology, 11: 273-275.
  • Hutchinson, J. T., and M. J. Lacki. 2000. Selection of day roosts by red bats in mixed mesophytic forests. Journal of Wildlife Management, 64: 87-94.
  • Johnson, D. H. 1995. Statistical sirens: the allure of nonparametrics. Ecology, 76: 1998-2000.
  • Johnson, D. H. 2002. The importance of replication in wildlife research. Journal of Wildlife Management, 66: 919-932.
  • Kurta, A., D. King, J. A. Teramino, J. M. Stribley, and K. J. Williams. 1993. Summer roosts of the endangered Indiana bat (Myotis sodalis) on the northern edge of its range. The American Midland Naturalist, 129: 132-138.
  • Kurta, A., K. J. Williams, and R. Mies. 1996. Ecological, behavioural, and thermal observations of a peripheral population of Indiana bats (Myotis sodalis). Pp. 102-117, in Bats and forests symposium (R. M. R. Barclay and R. M. Brigham, eds.). British Columbia Ministry of Forests, Victoria, British Columbia, 292 pp.
  • Lacki, M. J. 2002. Conference summary. Pp. xi-xii, in The Indiana bat: biology and management of an endangered species (A. Kurta and J. Kennedy, eds.). Bat Conservation International, Inc., Austin, TX, 253 pp.
  • Lacki, M. J., and J. H. Schwierjohann. 2001. Day-roost characteristics of northern bats in mixed mesophytic forest. Journal of Wildlife Management, 65: 482-488.
  • Lewis, S. E. 1995. Roost fidelity of bats: a review. Journal of Mammalogy, 76: 481-496.
  • Lunney, D., J. Barker, T. Leary, D. Priddel, R. Wheeler, P. O’Connor, and B. Law. 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.
  • Mattson, T. A., S. W. Buskirk, and N. L. Stanton. 1996. Roost sites of the silver-haired bat (Lasionycteris noctivagans) in the Black Hills, South Dakota. Great Basin Naturalist, 56: 247-253.
  • Menzel, M. A., T. C. Carter, B. R. Chapman, and J. Laerm. 1998. Quantitative comparison of tree roosts used by red bats (Lasiurus borealis) and Seminole bats (L. seminolus). Canadian Journal of Zoology, 76: 630-634.
  • Millspaugh, J. J., J. R. Skalski, B. J. Kernohan, K. J. Raedeke, G. C. Brundige, and A. B. Cooper. 1998. Some comments on spatial independence in studies of resource selection. Wildlife Society Bulletin, 26: 232-236.
  • Ormsbee, P. C., and W. C. McComb. 1998. Selection of day roosts by female long-legged myotis in the Central Oregon Cascade range. Journal of Wildlife Management, 62: 596-603.
  • Pierson, E. D. 1998. Tall trees, deep holes, and scarred landscapes: conservation biology of North American bats. Pp. 309-325, in Bat biology and conservation. (T. H. Kunz and P. A. Racey, eds.). Smithsonian Institution Press, Washington, D.C., 365 pp.
  • Rabe, M. J., T. E. Morrell, H. Green, J. C. deVos, Jr., and C. R. Miller. 1998. Characteristics of ponderosa pine snag roosts used by reproductive bats in northern Arizona. Journal of Wildlife Management, 62: 612-621.
  • Ramsey, F. L., M. McCracken, J. A. Crawford, M. S. Drut, and W. J. Ripple. 1994. Habitat association studies of the northern spotted owl, sage grouse, and flammulated owl. Pp. 189-209, in Case studies in biometry (N. Lange, L. Ryan, L. Billard, D. Brillinger, L. Conquest, and J. Greenhouse, eds.). John Wiley & Sons, Inc., New York, 462 pp.
  • Reed, J. M., and A. R. Blaustein. 1995. Assessment of ‘nondeclining’ amphibian populations using power analysis. Conservation Biology, 9: 1299-1300.
  • Sasse, D. B., and P. J. Pekins. 1996. Summer roosting ecology of northern long-eared bats (Myotis septentrionalis) in the White Mountain National Forest. Pp. 91-101, in Bats and forests symposium (R. M. R. Barclay and R. M. Brigham, eds.). British Columbia Ministry of Forests, Victoria, British Columbia, 292 pp.
  • Sedgeley, J. A., and C. F. J. O’Donnell. 1999a. Roost selection by the long-tailed bat, Chalinolobus tuberculatus, in temperate New Zealand rainforest and its implications for the conservation of bats in managed forests. Biological Conservation, 88: 261-276.
  • Sedgeley, J. A., and C. F. J. O’Donnell. 1999b. Factors influencing the selection of roost cavities by a temperate rainforest bat (Vespertilionidae: Chalinolobus tuberculatus) in New Zealand. Journal of Zoology (London), 249: 437-446.
  • Steidl, R. J., and L. Thomas. 2001. Power analysis and experimental design. Pp. 14-36, in Design and analysis of ecological experiments (S. M. Scheiner and J. Gurevitch, eds.). Oxford University Press, New York, NY, 415 pp.
  • Steidl, R. J., J. P. Hayes, and E. Schauber. 1997. Statistical power analysis in wildlife research. Journal of Wildlife Management, 61: 270-279.
  • Tacha, T. C., W. D. Warde, and K. P. Burnham. 1982. Use and interpretation of statistics in wildlife journals. Wildlife Society Bulletin, 10: 355-362.
  • Taylor, B. L., and T. Gerrodette. 1993. The uses of statistical power in conservation biology: the Vaquita and northern spotted owl. Conservation Biology, 7: 489-500.
  • Taylor, D. J., and K. E. Muller. 1995. Computing confidence bounds for power and sample size of the general linear univariate model. The American Statistician, 49: 43-47.
  • The Wildlife Society. 1995. Journal news. Journal of Wildlife Management, 59: 196-198.
  • Thomas, L. 1997. Retrospective power analysis. Conservation Biology, 11: 276-280.
  • Vonhof, M. J. 1996. Roost-site preferences of big brown bats (Eptesicus fuscus) and silver-haired bats (Lasionycteris noctivagans) in the Pend d’Oreille Valley in southern British Columbia. Pp. 62-80, in Bats and forests symposium (R. M. R. Barclay and R. M. Brigham, eds.). British Columbia Ministry of Forests, Victoria, British Columbia, 292 pp.
  • Vonhof, M. J., and R. M. R. Barclay. 1996. Roost-site selection and roosting ecology of forestdwelling bats in southern British Columbia. Canadian Journal of Zoology, 74: 1797-1805.
  • Waldien, D. L., J. P. Hayes, and E. B. Arnett. 2000. Day-roosts of female long-eared myotis in western Oregon. Journal of Wildlife Management, 64: 785-796.
  • Weller, T. J., and C. J. Zabel. 2001. Characteristics of fringed myotis day roosts in northern California. Journal of Wildlife Management, 65: 489-497.
  • Yoccoz, N. G. 1991. Use, overuse, and misuse of significance tests in evolutionary biology and ecology. Bulletin of the Ecological Society of America, 72: 106-111.
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