Critical times of the year for Myotis myotis, a temperate zone bat: roles of climate and food resources

• Autorzy: Zahn A. , Rodrigues L. , Rainho A. , Palmeirim J. M.
• Języki publikacji: EN

Abstrakty

EN

In highly seasonal temperate zones climate may cause fluctuations in the accessibility of prey for insectivorous bats. The main objective of this project was to evaluate if these fluctuations can result in resource bottlenecks that affect the body condition of a temperate zone bat — Myotis myotis. Seasonal changes in body condition followed different patterns in Portugal and Germany, which have different climates. In Germany bats use thermally better hibernacula, which allow them to minimize energy expenditure, but because of the longer winters they emerge from hibernation in poorer condition. Except during the hibernation period, food was always abundant in Germany, but the condition of the animals was poor when bad weather constrained foraging, particularly in early spring. In Portugal food was limiting during the long dry summer, and this affected the condition of the animals for several months. The conclusion that food resources can act as a limiting factor is relevant for conservation because, like other bat species, M. myotis forages mostly in agricultural and forestry habitats, and can be affected by practices that accentuate resource bottlenecks. Where necessary, the management of agroecosystems near colonies of M. myotis and of other threatened bats should aim at minimizing seasonal food bottlenecks.

Słowa kluczowe

EN

Myotis myotis; temperate zone; bat; climate; food resource; diet; prey availability; body condition; Portugal; Germany; seasonal change; population dynamics

• Wydawca: -
• Czasopismo: Acta Chiropterologica
• Rocznik: 2007
• Tom: 09
• Numer: 1
• Opis fizyczny: p.115-125,fig.,ref.

Twórcy

autor

Zahn A.

• Ludwig-Maximilians-Universitat Munchen, Grosshaderner Str.2, D-82152 Planegg - Martinsried, Germany

autor

Rodrigues L.

autor

Rainho A.

autor

Palmeirim J. M.

Bibliografia

• 1. R. Arlettaz 1995. Ecology of the sibling mouse-eared bats (Myotis myotis and Myotis blythii): zoogeography, niche, competition, and foraging Horus Publishers. Martigny. 208. pp. Google Scholar
• 2. R. Arlettaz, C. Ruchet, J. Aeschimann, E. Brun, M. Genoud, and P. Vogel . 2000. Physiological traits affecting the distribution and wintering strategy of the bat Tadarida teniotis. Ecology 81:1004–1014. Google Scholar
• 3. R. Arlettaz, P. Christe, A. Lugon, N. Perrin, and P. Vogel . 2001. Food availability dictates the timing of parturition in insectivorous mouse-eared bats. Oikos 95:105–111. Google Scholar
• 4. D. Audet 1992. Roost quality, foraging and young production in the mouse eared bat, Myotis myotis: a test of the ESS model of group size selection Ph.D. Thesis. York University. York. 128. pp. Google Scholar
• 5. R. M R. Barclay 1991. Population structure of temperate zone insectivorous bats in relation to foraging behaviour and energy demand. Journal of Animal Ecology 60:165–178. Google Scholar
• 6. L. J. Beasley, K. M. Pelz, and I. Zucker . 1984. Circannual rhythms of body weight in pallid bats. American Physiological Society 246:955–958. Google Scholar
• 7. G. Ceballos, T. H. Fleming, C. Chávez, and J. Nassar . 1997. Population dynamics of Leptonycteris curasoae (Chiroptera: Phyllostomidae) in Jalisco, Mexico. Journal of Mammalogy 78:1220–1250. Google Scholar
• 8. G. du Bus de Warnaffe and P. Lebrun . 2004. Effects of forest management on carabid beetles in Belgium: implications for biodiversity conservation. Biological Conservation 118:219–234. Google Scholar
• 9. R. Güttinger 1997. Jagdhabitate des Großen Mausohrs (Myotis myotis) in der modernen Kulturlandschaft Buwal-Schriftenreihe Umwelt: 288. Google Scholar
• 10. R. Güttinger, A. Zahn, F. Krapp, and W. Schober . 2001. Myotis myotis — Großes Mausohr. Pp 123–207. in Handbuch der Säugetiere Europa; Bd. 4: Fledertiere, Teil 1. Chiroptera 1 F. Krapp , editor. ed. Aula Verlag. Wiebelsheim. 602. pp. Google Scholar
• 11. I. Horáèek 1985. Population ecology of Myotis myotis in central Bohemia (Mammalia: Chiroptera). Acta Universitatis Carolinae, Biologica 8:161–267. Google Scholar
• 12. A. Krzanowski 1961. Weight dynamics of bats wintering in the cave at Pulawy (Poland). Acta Theriologica 4:249–263. Google Scholar
• 13. S. E. Lewis 1992. Effect of climatic variation on reproduction by pallid bats (Antrozous pallidus). Canadian Journal of Zoology 71:1429–1433. Google Scholar
• 14. K. Mcaney 1991. The analyses of bat droppings Occasional Publications of the Mammal Society. London. 14. pp. Google Scholar
• 15. S. P. Mickleburgh, A. M. Hutson, and P. A. Racey . 2002. A review of the global conservation status of bats. Oryx 36:18–34. Google Scholar
• 16. P. Miranda, F. E S. Coelho, A. R. Tomé, M. A. Valente, A. Carvalho, C. Pires, H. O. Pires, V. C. Pires, and C. Ramalho . 2002. 20th century Portuguese climate and climate scenarios. Pp 23–83. in Climate change in Portugal. Scenarios, impacts and adaptation measures — SIAM project F. D. Santos, K. Forbes, and R. Moita , editors. eds. Gradiva. Lisbon. 454. pp. Google Scholar
• 17. G. Neuweiler 2000. The biology of bats University Press. New York. 310. pp. Google Scholar
• 18. J. M. Palmeirim and L. Rodrigues . 1993. The 2-minute harp trap for bats. Bat Research News 34:60–64. Google Scholar
• 19. R. J H. Payne and J. D. Wilson . 1999. Resource limitation in seasonal environments. Oikos 87:303–314. Google Scholar
• 20. M. J R. Pereira, H. Rebelo, A. Rainho, and J. M. Palmeirim . 2002. Prey selection by Myotis myotis (Vespertilionidae) in a Mediterranean region. Acta Chiropterologica 4:183–193. Google Scholar
• 21. R. Primack 2002. Essentials of Conservation Biology 3rd editionSinauer Associates. Sunderland. 660. pp. Google Scholar
• 22. M. Prucha and V. Hanzal . 1989. Some aspects of hibernation of bats wintering in the Bohemian Karst (Central Bohemia, Czechoslovakia). Acta Universitatis Carolinae, Biologica 33:315–333. Google Scholar
• 23. P. A. Racey 1982. Ecology of bat reproduction. Pp 57–68. in Ecology of bats T. H. Kunz , editor. ed. Plenum Press. New York. 425. pp. Google Scholar
• 24. R. D. Ransome 1971. The effect of ambient temperature on the arousal frequency of the hibernating greater horseshoe bat, Rhinolophus ferrumequinum, in relation to site selection and the hibernation state. Journal of Zoology (London) 164:353–371. Google Scholar
• 25. R. D. Ransome 1990. The natural history of hibernating bats Christopher Helm. London. 235. pp. Google Scholar
• 26. L. Rodrigues, A. Zahn, A. Rainho, and J. M. Palmeirim . 2003. Contrasting the roosting behaviour and phenology of an insectivorous bat (Myotis myotis) in its southern and northern distribution ranges. Mammalia 67:321–335. Google Scholar
• 27. B. U. Rudolph, A. Zahn, and A. Liegl . 2004. Großes Mausohr (Myotis myotis). Pp. 203–231. in. Fledermäuse in Bayern (Bayerisches Landesamt für Umweltschutz, ed.). Verlag Eugen Ulmer. Stuttgart. 411. pp. Google Scholar
• 28. D. Russo, G. Jones, and A. Migliozz . 2002. Habitat selection by the Mediterranean horseshoe bat, Rhinolophus euryale (Chiroptera: Rhinolophidae) in a rural area of southern Italy and implications for conservation. Biological Conservation 107:71–81. Google Scholar
• 29. C. D. Schönwiese 1994. Klimatologie Eugen Ulmer. Stuttgart. 436. pp. Google Scholar
• 30. D. W. Thomas 1995. Physiological ecology of hibernation in vespertilionid bats. Pp 233–244. in Ecology, evolution and behaviour of bats P. A. Racey and S. M. Swift , editors. eds. Symposia of the Zoological Society of London 67:1–421. Google Scholar
• 31. M. D. Tuttle 1976. Population ecology of the gray bat (Myotis grisescens): factors influencing growth and survival of newly volant young. Ecology 57:587–595. Google Scholar
• 32. P. I. Webb, J. R. Speakman, and P. A. Racey . 1996. How hot is a hibernaculum? A review of the temperatures at which bats hibernate. Canadian Journal of Zoology 74:761–765. Google Scholar
• 33. J. O. Whitaker 1989. Food habits analyses of insectivorous bats. Pp 171–189. in Ecological and behavioural methods for the study of bats T. H. Kunz , editor. ed. Smithsonian Institution Press. Washington, D.C. 533. pp. Google Scholar
• 34. L. P. Wickramasinghe, S. Harris, G. Jones, and N. Vaughan . 2003. Bat activity and species richness on organic and conventional farms: impact of agricultural intensification. Journal of Applied Ecology 40:984–993. Google Scholar
• 35. I. Wolz 1993. Untersuchungen zur Nachweisbarkeit von Beutetierfragmenten im Kot von Myotis bechsteini (Kuhl 1818). Myotis 31:5–25. Google Scholar
• 36. A. Zahn 1999. Reproductive success, colony size and roost temperature in attic-dwelling bat Myotis myotis. Journal of Zoology (London) 247:275–280. Google Scholar
• 37. A. Zahn and B. Dippel . 1997. Male roosting habits, mating system and mating behaviour of Myotis myotis. Journal of Zoology (London) 243:659–674. Google Scholar
• 38. A. Zahn and K. Krüger-Barvels . 1996. Wälder als Jagdhabitate von Fledermäusen. Zeitschrift für Ökologie und Naturschutz 5:77–85. Google Scholar
• 39. A. Zahn, H. Haselbach, and R. Güttinger . 2005. Foraging activity of central European Myotis myotis in a landscape dominated by spruce monocultures. Mammalian Biology 70:265–270. Google Scholar
• 40. A. Zahn, A. Rottenwallner, and R. Güttinger . 2006. Population density of the greater mouse-eared bat (Myotis myotis), local diet composition and availability of foraging habitats. Journal of Zoology (London) 269:486–493. Google Scholar