Abstract
The effects of urbanization on biodiversity are generally considered to be negative, but the potential for landscape context to modulate these effects has not been adequately examined because most urban ecology research has been conducted in one biome: the temperate forest. This bias also applies to studies of the urban ecology of bats, whose diversity is correlated with habitat heterogeneity. We investigated the hypothesis that in the fairly flat, homogeneous Prairies, urbanization, by creating structurally complex islands, benefits bats by increasing access to the vertical landscape elements (buildings and trees) in which they roost. From 2006 to 2008, we surveyed bat assemblages in and around Calgary, Alberta, using mist nets to capture them and bat detectors to record their echolocation activity. Our data supported the prediction that urbanization increases the abundance of Prairie bats, but not the prediction that it increases their diversity. Instead, the urban bat assemblage was less diverse, and exhibited decreased species evenness compared to non-urban assemblages. Although Myotis lucifugus dominated bat assemblages throughout our study area, this was most evident in the city, and this species drove the increased urban abundance of bats. Ultimately, we reject our hypothesis and conclude that urbanization in the Prairies may create attractive habitat for one synanthropic bat, but is detrimental to others.
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References
Agosta SJ (2002) Habitat use, diet and roost selection by the Big Brown Bat (Eptesicus fuscus) in North America: a case for conserving an abundant species. Mamm Rev 32:179–198
Alberta Environmental Protection (1997) 1997 Alberta State of the Environment Report: Terrestrial ecosystems. Alberta Environmental Protection, Edmonton, Alberta
Avila-Flores R, Fenton MB (2005) Use of spatial features by foraging insectivorous bats in a large urban landscape. J Mammal 86:1193–1204
Barclay RMR (1989) The effect of reproductive condition on the foraging behavior of female hoary bats, Lasiurus cinereus. Behav Ecol Sociobiol 24:31–37
Barclay RMR (1993) The biology of Prairie bats, In The 3rd Prairie Conservation and Endangered Species Workshop. In Holroyd GL, Dickson HL, Regnier M, Smith HC (eds), Provincial Museum of Alberta, Brandon, Manitoba, pp. 353–357
Barclay RMR, Harder LD (2003) Life histories of bats: life in the slow lane. In: Kunz TH, Fenton MB (eds) Bat ecology. The University of Chicago Press, Chicago, Illinois, pp 209–253
Bate LJ, Wisdom MJ, Wales BC (2007) Snag densities in relation to human access and associated management factors in forests of Northeastern Oregon, USA. Landsc Urban Plann 80:278–291
Bredt A, Uieda W (1996) Bats from urban and rural environments of the Distrito Federal, mid-western Brazil. Chiroptera Neotropical 2:54–57
Chace JF, Walsh JJ (2006) Urban effects on native avifauna: a review. Landsc Urban Plann 74:46–69
Coleman J (2010) The Effects of urbanization on Prairie Bats, In Department of Biological Sciences. p. 206. University of Calgary, Calgary, Alberta.
Cook WM, Faeth SH (2006) Irrigation and land use drive ground arthropod community patterns in an urban desert. Environ Entomol 35:1532–1540
Corben C (2000) Anamusic WAV File Generation Utility
Corben C (2004) Analook bat call analysis system
Cromartie JB (1998) Net migration in the Great Plains increasingly linked to natural amenities and suburbanization. Rural Dev Perspect 13:27–34
Crooks KR, Soulé ME (1999) Mesopredator release and avifaunal extinctions in a fragmented system. Nature 400:563–566
Czech B, Krausman PR, Devers PK (2000) Economic associations among causes of species endangerment in the United States. Bioscience 50:593–601
Davis WH, Hitchcock HB (1965) Biology and migration of the bat, Myotis lucifugus, in New England. J Mammal 46:296–313
Duchamp JE, Swihart RK (2008) Shifts in bat community structure related to evolved traits and features of human-altered landscapes. Landscape Ecol 23:849–860
Ecological Stratification Working Group (1995) Terrestrial ecozones, ecoregions, and ecodistricts of Canada: Provinces of Alberta, Saskatchewan, and Manitoba. A national ecological framework for Canada. Agriculture and Agri-Foods Canada, Research Branch Centre for Land and Biological Resources Research and Environment Canada, State of the Environment Directorate, Ecozone Analysis Branch, Ottawa–Hull, Canada
Engqvist L (2005) The mistreatment of covariate interaction terms in linear model analyses of behavioural and evolutionary ecology studies. Anim Behav 70:967–971
Evelyn MJ, Stiles DA, Young RA (2004) Conservation of bats in suburban landscapes: roost selection by Myotis yumanensis in a residential area in California. Biol Conserv 115:463–473
Everette AL, O'Shea TJ, Ellison LE, Stone LA, McCance JL (2001) Bat use of a high-plains urban wildlife refuge. Wildl Soc Bull 29:967–973
Faure PA, Barclay RMR (1994) Substrate-gleaning versus aerial-hawking: plasticity in the foraging and echolocation behaviour of the long-eared bat, Myotis evotis. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 174:651–660
Fenton MB (2003) Science and the conservation of bats: where to next? Wildl Soc Bull 31:6–15
Fenton MB, Fleming TH (1976) Ecological interactions between bats and nocturnal birds. Biotropica 8:104–110
Fischer J, Stott J, Law BS, Adams MD, Forrester RI (2009) Designing effective habitat studies: quantifying multiple sources of variability in bat activity. Acta Chiropterologica 11:127–137
Forman RTT, Alexander LE (1998) Roads and their major ecological effects. Annu Rev Ecol Syst 29:207–231
Gaisler J, Zukal J, Rehak Z, Homolka M (1998) Habitat preference and flight activity of bats in a city. J Zool, London 244:439–445
Garden J, McAlpine C, Peterson ANN, Jones D, Possingham H (2006) Review of the ecology of Australian urban fauna: a focus on spatially explicit processes. Austral Ecology 31:126–148
Gauthier DA, Wiken EB (2003) Monitoring the conservation of grassland habitats, prairie ecozone, Canada. Environ Monit Assess 88:343–364
Geggie JF, Fenton MB (1985) A comparison of foraging by Eptesicus fuscus (Chiroptera: Vespertilionidae) in urban and rural environments. Can J Zool 63:263–266
Gehrt SD, Chelsvig JE (2003) Bat activity in an urban landscape: patterns at the landscape and microhabitat scale. Ecol Appl 13:939–950
Gehrt SD, Chelsvig JE (2004) Species-specific patterns of bat activity in an urban landscape. Ecol Appl 14:625–635
Ghitter G, Smart A (2009) Mad cows, regional governance, and urban sprawl: path dependence and unintended consequences in the Calgary Region. Urban Aff Rev 44:617–644
Hayes JP (1997) Temporal variation in activity of bats and the design of echolocation-monitoring studies. J Mammal 78:514–524
Holloway GL, Barclay RMR (2000) Importance of prairie riparian zones to bats in southeastern Alberta. Ecoscience 7:115–122
Holloway GL, Barclay RMR (2001) Myotis ciliolabrum. Mammalian Species 670:1–5
Hourigan CL, Johnson C, Robson SKA (2006) The structure of a micro-bat community in relation to gradients of environmental variation in a tropical urban area. Urban Ecosyst 9:67–82
Humphrey SR (1975) Nursery roosts and community diversity of Nearctic bats. J Mammal 56:321–346
Johnson JB, Gates JE, Ford WM (2008) Distribution and activity of bats at local and landscape scales within a rural–urban gradient. Urban Ecosyst 11:227–242
Jones RC, Clark CC (1987) Impact of watershed urbanization on stream insect communities. J Am Water Resour Assoc 23:1047–1055
Kalcounis-Rueppell MC, Payne VH, Huff SR, Boyko AL (2007) Effects of wastewater treatment plant effluent on bat foraging ecology in an urban stream system. Biol Conserv 138:120–130
Kirsten I, Klomp NI (1998) Microchiroptera in urban, rural and forest areas of southern NSW. Australas Bat Soc Newsl 11:28–31
Kunz TH (1973) Resource utilization: temporal and spatial components of bat activity in central Iowa. J Mammal 54:14–32
Kunz TH, Fenton MB (2003) Bat ecology. University of Chicago Press, Chicago
Kunz TH, Hodgkison R, Weise CD (2009) Methods of capturing and handling bats. In: Kunz TH, Parsons S (eds) Ecological and behavioral methods for the study of bats, 2nd edn. Johns Hopkins University Press, Baltimore, pp 3–35
Kurta A, Teramino JA (1992) Bat community structure in an urban park. Ecography 15:257–261
Lac S, Colan C (2004) South Saskatchewan river basin biogeography. University of Regina, Regina, SK
Larson DJ, Hayes JP (2000) Variability in sensitivity of Anabat II bat detectors and a method of calibration. Acta Chiropterologica 2:209–213
Lauriault J (1989) Identification guide to the trees of Canada. National Museum of Natural Sciences, Ottawa
Lemmen DS, Vance RE, Wolfe SA, Last WM (1997) Impacts of future climate change on the southern Canadian Prairies: a paleoenvironmental perspective. Geosci Can 24:121–133
Loeb SC, Post CJ, Hall ST (2009) Relationship between urbanization and bat community structure in national parks of the southeastern U.S. Urban Ecosyst 12:197–214
Mackey RL, Currie DJ (2001) The diversity-disturbance relationship: is it generally strong and peaked? Ecology 82:3479–3492
Magurran AE (2004) Measuring biological diversity, 2nd edn. Blackwell Science Ltd., Oxford
Marzluff JM, Ewing K (2001) Restoration of fragmented landscapes for the conservation of birds: a general framework and specific recommendations for urbanizing landscapes. Restor Ecol 9:280–292
McIntyre S, Hobbs R (1999) A framework for conceptualizing human effects on landscapes and its relevance to management and research models. Conserv Biol 13:1282–1292
McKinney ML (2002) Urbanization, biodiversity, and conservation. Bioscience 52:883–890
McKinney ML (2006) Urbanization as a major cause of biotic homogenization. Biol Conserv 127:247–260
Moss EH (1932) The vegetation of Alberta: IV. The poplar association and related vegetation of central Alberta. J Ecol 20:380–415
Niemelä J (1999) Is there a need for a theory of urban ecology? Urban Ecosyst 3:57–65
Norberg UM, Rayner JMV (1987) Ecological morphology and flight in bats (Mammalia; Chiroptera): wing adaptations, flight performance, foraging strategy and echolocation. Phil Trans Roy Soc Lond B Biol Sci 316:335–427
Ober HK, Hayes JP (2008) Prey selection by bats in forests of western Oregon. J Mammal 89:1191–1200
Ormsbee PC, McComb WC (1998) Selection of day roosts by female long-legged Myotis in the central Oregon Cascade Range. J Wildl Manage 62:596–603
Potere D, Schneider A, Angel S, Civco DL (2009) Mapping urban areas on a global scale: which of the eight maps now available is more accurate? Int J Remote Sens 30:6531–6558
Racey PA, Entwistle AC (2003) Conservation Ecology of Bats. In: Kunz TH, Fenton MB (eds) Bat ecology. The University of Chicago Press, Chicago, pp 680–743
Rainho A (2007) Summer foraging habitats of bats in a Mediterranean region of the Iberian Peninsula. Acta Chiropterologica 9:171–181
Richards GC (2001) Towards defining adequate bat survey methodology: why electronic call detection is essential throughout the night. Australas Bat Soc Newsl 16:24–28
Samson F, Knopf F (1994) Prairie conservation in North America. Bioscience 44:418–421
Schaub A, Ostwald J, Siemers BM (2008) Foraging bats avoid noise. J Exp Biol 211:3174–3180
Seaby RM, Henderson PA (2006) Species diversity and richness. Pisces Conservation Ltd., Lymington
Shochat E, Warren PS, Faeth SH, McIntyre NE, Hope D (2006) From patterns to emerging processes in mechanistic urban ecology. Trends Ecol Evol 21:186–191
Solick DI, Barclay RMR (2006) Morphological differences among western long-eared myotis (Myotis evotis) populations in different environments. J Mammal 87:1020–1026
Solick DI, Barclay RMR (2007) Geographic variation in the use of torpor and roosting behaviour of female western long-eared bats. J Zool 272:358–366
Solow AR (1993) A simple test for change in community structure. J Anim Ecol 62:191–193
Sparks DW, Laborda JA Jr, Whitaker JO (1998) Bats of the Indianapolis International Airport as compared to a more rural community of bats at Prairie Creek. Proc Indiana Acad Sci 107:171–179
Statistics Canada (2007) Population and dwelling counts, for census metropolitan areas and census agglomerations, 2006 and 2001 censuses—100% data
Sun H, Forsythe W, Waters N (2007) Modeling urban land use change and urban sprawl: Calgary, Alberta, Canada. Network Spatial Econ 7:353–376
Thomas DW (1988) The distribution of bats in different ages of Douglas-fir forests. J Wildl Manage 52:619–626
Thomas DW, LaVal RK (1988) Survey and census methods. In: Kunz TH (ed) Ecological and behavioral methods for the study of bats. Smithsonian Institution Press, Washington, pp 77–89
Ticer CL, Ockenfels RA, Devos JC, Morrell TE (1998) Habitat use and activity patterns of urban-dwelling javelina. Urban Ecosyst 2:141–151
United Nations (2008) World Urbanization Prospects: The 2007 Revision Highlights. United Nations Dept. of Economic and Social Affairs, Population Division, New York, New York
van der Ree R, McCarthy MA (2005) Inferring persistence of indigenous mammals in response to urbanisation. Anim Conserv 8:309–319
Vaughan N, Jones G, Harris S (1997) Habitat use by bats (Chiroptera) assessed by means of a broad-band acoustic method. J Appl Ecol 34:716–730
Vujnovic K, Wein RW, Dale MRT (2002) Predicting plant species diversity in response to disturbance magnitude in grassland remnants of central Alberta. Can J Bot 80:504–511
Walsh AL, Harris S (1996a) Factors determining the abundance of vespertilionid bats in Britain: geographical, land class and local habitat relationships. J Appl Ecol 33:519–529
Walsh AL, Harris S (1996b) Foraging habitat preferences of vespertilionid bats in Britain. J Appl Ecol 33:508–518
Wickett SM (1900) City government in Canada. Polit Sci Q 15:240–259
Willis CKR, Brigham RM (2005) Physiological and ecological aspects of roost selection by reproductive female hoary bats (Lasiurus cinereus). J Mammal 86:85–94
Acknowledgements
For invaluable assistance in the field, we thank: N. Boulic, A. Bugajski, A. Goldie, T. Hershon, C. Olson, P. Payette, and especially E. Swerdfeger. Many thanks to C. Lausen for advice and reference calls. This project would not have been possible without the cooperation of government agencies that facilitated access to public lands, including the Government of Alberta (Tourism Parks and Recreation), the City of Calgary and Parks Canada. We also thank the private landowners who not only welcomed us onto their properties, but also showed both hospitality and an interest in bats and our work with them. Funding and materials were provided by the Natural Sciences and Engineering Research Council of Canada, Killam Trusts, Bat Conservation International, University of Calgary and Canadian Tire.
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Coleman, J.L., Barclay, R.M.R. Urbanization and the abundance and diversity of Prairie bats. Urban Ecosyst 15, 87–102 (2012). https://doi.org/10.1007/s11252-011-0181-8
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DOI: https://doi.org/10.1007/s11252-011-0181-8