Plant Ecology

, Volume 155, Issue 1, pp 119–127 | Cite as

Effects of introduction and exclusion of large herbivores on small rodent communities

  • R. Smit
  • J. Bokdam
  • J. den Ouden
  • H. Olff
  • H. Schot-Opschoor
  • M. Schrijvers


In this study we analysed the effects of large herbivores on smallrodent communities in different habitats using large herbivore exclosures. Westudied the effects of three year grazing introduction by red deer(Cervus elaphus L.) in previously ungrazed pine and oakwoodland and the exclusion of grazing by red deer, roe deer(Capreoluscapreolus L.) and mouflon (Ovis ammon musiminL.) in formerly, heavily grazed pine woodland and heathland. At eight exclosuresites within each habitat type, small rodents were captured with live trapsusing trapping grids. At each trapping grid, seed plots of beechnuts(Fagus sylvatica L.) and acorns (Quercusrobur L.) were placed to measure seed predation by rodents.Exclusion of grazing by large herbivores in formerly, heavily grazedhabitats had a significant effect on small rodent communities. Insideexclosureshigher densities of mainly wood mice (Apodemus sylvaticusL.) and field voles (Microtus agrestis L.) were captured.Introduction of grazing by red deer appeared to have no significant negativeeffects on small rodent communities. The seed predation intensity of beechnutsand acorns by small rodents was significantly higher in ungrazed situations,particularly in habitats that were excluded from grazing. The differencesbetween grazing introduction and exclusion effects on small rodent communitiescan be explained by differences in vegetation structure development. Therecovery of heavily browsed understory vegetation after large herbivore grazingexclusion proceeded faster than the understory degradation due to grazingintroduction. Small rodents depend on structural rich vegetations mainly forshelter. We conclude that large herbivores can have significant effects onvegetation dynamics not only via direct plant consumption but also throughindirect effects by reducing the habitat quality of small rodent habitats.

Grazing introduction Herbivory Seed survival Vegetation structure Woodland dynamics 


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  1. Anderson R.C. and Katz A.J. 1993. Recovery of browse-sensitive species following release from white-tailed deer (Odocoileus viriginianus Zimmerman) browsing pressure. Biological Conservation 63: 203–208.CrossRefGoogle Scholar
  2. Apeldoorn van R.C., Oostenbrink H., van Winden W.T. and Zee van der F.F. 1992. Effect of habitat fragmentation on the bank vole, Clethrionomys glareolus, in an agricultural landscape. Oikos 65: 265–274.Google Scholar
  3. Bossema I. 1979. Jays and oak: an eco-ethological study of symbiosis. Behaviour 70: 1–117.Google Scholar
  4. Bowers M.A. and Dooley J.L. 1993. Predation hazard and seed predation by small mammals: microhabitat versus patch scale effects. Oecologia 94: 247–254.Google Scholar
  5. Brown L.E. 1969. Field experiments on the movements of Apodemus sylvaticus L. using trapping and tracking techniques. Oecologia (Berlin) 94: 247–254.Google Scholar
  6. De Jonge G. and Dienske H. 1979. Habitat and interspecific displacement of small mammals in the Netherlands. Neth. J. Zool. 29: 117–214.Google Scholar
  7. Dueser R.D. and Shugart H.H. 1978. Microhabitats in a forest-floor small mammal fauna. Ecology 59: 89–98.Google Scholar
  8. Fanta J. 1982. Natuurlijke verjonging van bossen op droge zandgronden. De Dorschkamp, Wageningen.Google Scholar
  9. Foster J. and Gaines M.S. 1991. The effects of successional habitat mosaic on a small mammal community. Ecology 72: 1358–1373.Google Scholar
  10. Geier A.R. and Best L.B. 1980. Habitat selection by small mammals of riparian communities: evaluating effects of habitat alterations. Journal of Wildlife Management 44: 16–24.Google Scholar
  11. Hansson L. 1978. Small abundance in relation to environmental variables in three Swedish forest phases. Stud. Forest. Suecica 147: 5–38.Google Scholar
  12. Harper J.L. 1977. Population biology of plants. Academic Press, London.Google Scholar
  13. Hazebroek E., Bruinderink Groot G.W.T.A. and Biezen J.B. 1995. Veranderingen in het voorkomen van kleine zoogdieren na uitsluiting van edelhert, ree en wild zwijn. Lutra 38: 50–59.Google Scholar
  14. Herrera J. 1995. Acorn predation and seedling production in a lowdensity population of cork oak (Quercus suber L.). Forest Ecology and Management 76: 197–201.Google Scholar
  15. Heske E.J. and Brown J.H. 1994. Long-term experimental study of chihuahuan rodent community: 13 years of competition. Ecology 75: 438–445.Google Scholar
  16. Holmes W.G. 1991. Predator risk affects foraging behaviour of pikas: observational and experimental evidence. Animal behaviour 42: 11–119.Google Scholar
  17. Janzen D.H. 1970. Herbivores and the number of tree species in tropical forests. The American Naturalist 104: 501–526.Google Scholar
  18. Jensen T.S. 1982. Seed production and outbreaks of non-cyclic rodent populations in deciduous forests. Oecologia 54: 184–192.Google Scholar
  19. Jensen T.S. and Nielsen O.F. 1986. Rodents as seed dispersers in a heath-oak wood succession. Oecologia 70: 214–221.Google Scholar
  20. Kaplan E.L. and Meier P. 1992. Kaplan-Meier survival analysis. In: Norsusis M.J. (ed.), SPSS Advanced Statistics 6., Chicago.Google Scholar
  21. Keesing F. 1998. Impacts of ungulates on the demography and diversity of small mammals in central Kenya. Oecologia 116: 381–389.Google Scholar
  22. Kikkawa J. 1964. Movement, activity and distribution of the small rodents Clethrionomys glareolus and Apodemus sylvaticus in woodland. Journal of Animal Ecology 33: 259–299.Google Scholar
  23. Kotler B.P. 1984. Risk of predation and the structure of desert rodent communities. Ecology 65: 689–701.Google Scholar
  24. Kotler B.P. and Blaustein L. 1995. Titrating food and safety in a heterogeneous environment: when are risky and safe patches of equal value? Oikos 74: 251–258.Google Scholar
  25. Krebs C.J. 1980. Ecology: the experimental analysis of distribution and abundance. 3rd edn. Harper and Row, New York.Google Scholar
  26. Krijnen H.J. and Nellestijn J.W. 1992. Klimatologische gegevens van Nederlandse stations: normalen en extremen van de 15 hoofdstations voor het tijdvak 1961–1990. KNMI.De Bilt.Google Scholar
  27. McInnes P.F., Naiman R.J., Pastor J. and Cohen Y. 1992. Effects of moose browsing on vegetation and litter of the boreal forest isle Royale Michigan, USA. Ecology 73: 2059–2075.Google Scholar
  28. Meijden van der R. 1996. Henkel's Flora van Nederland. 2nd edn. Wolters-Noordhof, Groningen.Google Scholar
  29. Miller D.H. and Getz L.L. 1976. Factors influencing local distribution and species diversity of forest small mammals in New England. Can. J. Zool. 55: 806–814.Google Scholar
  30. Olff H. and Ritchie M.E. 1998. Effects of herbivores on grassland diversity. Trends in Ecology and Evolution 13: 261–265.Google Scholar
  31. Ostfeld R.S. and Canham C.D. 1993. Effects of meadow vole population density on tree seedling survival in old fields. Ecology 74: 1792–1801.Google Scholar
  32. den Ouden J. and Smit R. 1997. Seed removal and dispersal by forest rodents: effects of vegetation structure. Acta. Bot. Neerl. 46: 325–334.Google Scholar
  33. Pacala S.W. and Crawley M.J. 1992. Herbivores and plant diversity. The American naturalist 140: 243–260.Google Scholar
  34. Pott R. and Hüppe J. 1991. Die Hudelandschaften Nordwestdeutschlandes. Westfälischen Museum für Naturkunde, Munster.Google Scholar
  35. Price M.V. and Jenkins S.H. 1986. Rodents as seed consumers and dispersers. In: Murray D.R. (ed.), Seed dispersal. Academic Press, pp. 191–235.Google Scholar
  36. Putman R.J. 1986. Grazing in temperate ecosystems, large herbivores and the ecology of the New Forest. Timber Press, Portland, Oregan.Google Scholar
  37. Putman R.J., Edwards P.J., Mann J.C.E., How R.C. and Hill S.D. 1989. Vegetational and faunal changes in an area of heavily grazed woodland following relief of grazing. Biological Conservation 47: 13–32.Google Scholar
  38. Putman R.J. 1996. Competition and resource partitioning in temperate ungulate assemblages. Chapman & Hall, London.Google Scholar
  39. Schoener T.W. 1983. Field experiments on interspecific competition. Am Nat 122: 240–285.Google Scholar
  40. Pyke D.A. and Thompson J.N. 1986. Statistical analysis of survival and predation rate experiments. Ecology 67: 240–245.Google Scholar
  41. Smit R., Bokdam J., WallisdeVries M.F. and Boers B. 1999. Shifts in resource partitioning of ungulate species after habitat enlargement.Google Scholar
  42. Sokal R.R. and Rohlf F.J. 1981. Biometry. 2nd edn. Freeman and Co, New York.Google Scholar
  43. Vander Wall S.B. 1990. Food hoarding in animals. University of Chigago Press, Chigago.Google Scholar
  44. Watts C.H.S. 1968. The foods eaten by wood mice (Apodemus sylvaticus) and bank voles (Clethrionomys glareolus) in Whytham Woods, Berkshire. Journal of Animal Ecology 37: 25–41.Google Scholar
  45. Welch D. and Scott D. 1995. Studies of heather moorland in northeast Scotland. VI. 20-year trends in botanical composition. Journal of Applied Ecology 32: 596–611.Google Scholar

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • R. Smit
    • 1
  • J. Bokdam
    • 1
  • J. den Ouden
    • 1
  • H. Olff
    • 1
  • H. Schot-Opschoor
    • 1
  • M. Schrijvers
    • 1
  1. 1.Nature Conservation and Plant Ecology GroupWageningen UniversityWageningenthe Netherlands

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