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Proceedings of the Royal Society B: Biological Sciences logoLink to Proceedings of the Royal Society B: Biological Sciences
. 2000 Apr 22;267(1445):779–786. doi: 10.1098/rspb.2000.1071

Invading parasites cause a structural shift in red fox dynamics.

M C Forchhammer 1, T Asferg 1
PMCID: PMC1690607  PMID: 10819147

Abstract

The influence of parasites on host life histories and populations is pronounced. Among several diseases affecting animal populations throughout the world, sarcoptic mange has influenced many carnivore populations dramatically and during the latest epizootic in Fennoscandia reduced the abundance of red fox by over 70%. While the numerical responses of red fox populations, their prey and their competitors as well as clinical implications are well known, knowledge of how sarcoptic mange affects the structure of the dynamics of red fox populations is lacking. Integrating ecological theory and statistical modelling, we analysed the long-term dynamics (1955-1996) of 14 Danish red fox populations. As suggested by the model, invading sarcoptic mange significantly affected direct and delayed density dependence in red fox dynamics and concomitant shifts in fluctuation patterns were observed. Our statistical analyses also revealed that the spatial progressive spread of mange mites was mirrored in the autocovariate structures of red fox populations progressively exposed to sarcoptic mange.

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Selected References

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  1. Anderson R. M., Jackson H. C., May R. M., Smith A. M. Population dynamics of fox rabies in Europe. Nature. 1981 Feb 26;289(5800):765–771. doi: 10.1038/289765a0. [DOI] [PubMed] [Google Scholar]
  2. Anderson R. M., May R. M. Infectious diseases and population cycles of forest insects. Science. 1980 Nov 7;210(4470):658–661. doi: 10.1126/science.210.4470.658. [DOI] [PubMed] [Google Scholar]
  3. Bjørnstad O. N., Falck W., Stenseth N. C. A geographic gradient in small rodent density fluctuations: a statistical modelling approach. Proc Biol Sci. 1995 Nov 22;262(1364):127–133. doi: 10.1098/rspb.1995.0186. [DOI] [PubMed] [Google Scholar]
  4. Bornstein S., Zakrisson G., Thebo P. Clinical picture and antibody response to experimental Sarcoptes scabiei var. vulpes infection in red foxes (Vulpes vulpes). Acta Vet Scand. 1995;36(4):509–519. doi: 10.1186/BF03547665. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. DURBIN J., WATSON G. S. Testing for serial correlation in least squares regression. II. Biometrika. 1951 Jun;38(1-2):159–178. [PubMed] [Google Scholar]
  6. Forchhammer M. C., Stenseth N. C., Post E., Langvatn R. Population dynamics of Norwegian red deer: density-dependence and climatic variation. Proc Biol Sci. 1998 Feb 22;265(1393):341–350. doi: 10.1098/rspb.1998.0301. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. La Vecchia C., Ron E., Franceschi S., Dal Maso L., Mark S. D., Chatenoud L., Braga C., Preston-Martin S., McTiernan A., Kolonel L. A pooled analysis of case-control studies of thyroid cancer. III. Oral contraceptives, menopausal replacement therapy and other female hormones. Cancer Causes Control. 1999 Apr;10(2):157–166. doi: 10.1023/a:1008832513932. [DOI] [PubMed] [Google Scholar]
  8. Little S. E., Davidson W. R., Howerth E. W., Rakich P. M., Nettles V. F. Diseases diagnosed in red foxes from the southeastern United States. J Wildl Dis. 1998 Jul;34(3):620–624. doi: 10.7589/0090-3558-34.3.620. [DOI] [PubMed] [Google Scholar]
  9. Little S. E., Davidson W. R., Rakich P. M., Nixon T. L., Bounous D. I., Nettles V. F. Responses of red foxes to first and second infection with Sarcoptes scabiei. J Wildl Dis. 1998 Jul;34(3):600–611. doi: 10.7589/0090-3558-34.3.600. [DOI] [PubMed] [Google Scholar]
  10. Martin R. W., Handasyde K. A., Skerratt L. F. Current distribution of sarcoptic mange in wombats. Aust Vet J. 1998 Jun;76(6):411–414. doi: 10.1111/j.1751-0813.1998.tb12391.x. [DOI] [PubMed] [Google Scholar]
  11. May R. M., Anderson R. M. Population biology of infectious diseases: Part II. Nature. 1979 Aug 9;280(5722):455–461. doi: 10.1038/280455a0. [DOI] [PubMed] [Google Scholar]
  12. Mörner T., Christensson D. Experimental infection of red foxes (Vulpes vulpes) with Sarcoptes scabiei var. vulpes. Vet Parasitol. 1984 Aug;15(2):159–164. doi: 10.1016/0304-4017(84)90031-1. [DOI] [PubMed] [Google Scholar]
  13. Samuel W. M. Attempted experimental transfer of sarcoptic mange (Sarcoptes scabiei, Acarina: Sarcoptidae) among red fox, coyote, wolf and dog. J Wildl Dis. 1981 Jul;17(3):343–347. doi: 10.7589/0090-3558-17.3.343. [DOI] [PubMed] [Google Scholar]
  14. Stenseth N. C., Bjørnstad O. N., Falck W. Is spacing behaviour coupled with predation causing the microtine density cycle? A synthesis of current process-oriented and pattern-oriented studies. Proc Biol Sci. 1996 Nov 22;263(1376):1423–1435. doi: 10.1098/rspb.1996.0208. [DOI] [PubMed] [Google Scholar]
  15. Stenseth N. C., Bjørnstad O. N., Saitoh T. A gradient from stable to cyclic populations of Clethrionomys rufocanus in Hokkaido, Japan. Proc Biol Sci. 1996 Sep 22;263(1374):1117–1126. doi: 10.1098/rspb.1996.0164. [DOI] [PubMed] [Google Scholar]
  16. Stenseth NC, Chan KS, Tong H, Boonstra R, Boutin S, Krebs CJ, Post E, O'Donoghue M, Yoccoz NG, Forchhammer MC. Common dynamic structure of canada lynx populations within three climatic regions . Science. 1999 Aug 13;285(5430):1071–1073. doi: 10.1126/science.285.5430.1071. [DOI] [PubMed] [Google Scholar]

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