The direct and indirect effects of the caecal nematode Trichostrongylus tenuis on red grouse

P. J. Hudson, A. P. Dobson

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Examines the population dynamics of Trichostrongylus tenuis, a parasite of moderate pathogenicity, that is lethal at high worm intensities but has a significant sublethal impact on the breeding production of red grouse Lagopus lagopus scoticus. Evidence is presented which supports the hypothesis that population cycles in red grouse are causd by reduced fecundity and survival through the delayed density-dependent effects of parasites and that these effects are sufficient to cause population cycles in grouse. Populations that did not show cycles carried lower levels of infection. While such effects do not preclude the action of other factors causing population cycles the evidence for other extrinsic factors or intrinsic changes in spacing behaviour is considered weak. -from Authors

Original languageEnglish (US)
Pages (from-to)49-68
Number of pages20
JournalUnknown Journal
StatePublished - Jan 1 1991

Fingerprint

population cycle
nematode
parasite
pathogenicity
fecundity
population dynamics
spacing
breeding
effect

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

@article{cccfa4e04966439db3fd0a02bc03172b,
title = "The direct and indirect effects of the caecal nematode Trichostrongylus tenuis on red grouse",
abstract = "Examines the population dynamics of Trichostrongylus tenuis, a parasite of moderate pathogenicity, that is lethal at high worm intensities but has a significant sublethal impact on the breeding production of red grouse Lagopus lagopus scoticus. Evidence is presented which supports the hypothesis that population cycles in red grouse are causd by reduced fecundity and survival through the delayed density-dependent effects of parasites and that these effects are sufficient to cause population cycles in grouse. Populations that did not show cycles carried lower levels of infection. While such effects do not preclude the action of other factors causing population cycles the evidence for other extrinsic factors or intrinsic changes in spacing behaviour is considered weak. -from Authors",
author = "Hudson, {P. J.} and Dobson, {A. P.}",
year = "1991",
month = "1",
day = "1",
language = "English (US)",
pages = "49--68",
journal = "[No source information available]",
issn = "0042-1215",

}

The direct and indirect effects of the caecal nematode Trichostrongylus tenuis on red grouse. / Hudson, P. J.; Dobson, A. P.

In: Unknown Journal, 01.01.1991, p. 49-68.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The direct and indirect effects of the caecal nematode Trichostrongylus tenuis on red grouse

AU - Hudson, P. J.

AU - Dobson, A. P.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - Examines the population dynamics of Trichostrongylus tenuis, a parasite of moderate pathogenicity, that is lethal at high worm intensities but has a significant sublethal impact on the breeding production of red grouse Lagopus lagopus scoticus. Evidence is presented which supports the hypothesis that population cycles in red grouse are causd by reduced fecundity and survival through the delayed density-dependent effects of parasites and that these effects are sufficient to cause population cycles in grouse. Populations that did not show cycles carried lower levels of infection. While such effects do not preclude the action of other factors causing population cycles the evidence for other extrinsic factors or intrinsic changes in spacing behaviour is considered weak. -from Authors

AB - Examines the population dynamics of Trichostrongylus tenuis, a parasite of moderate pathogenicity, that is lethal at high worm intensities but has a significant sublethal impact on the breeding production of red grouse Lagopus lagopus scoticus. Evidence is presented which supports the hypothesis that population cycles in red grouse are causd by reduced fecundity and survival through the delayed density-dependent effects of parasites and that these effects are sufficient to cause population cycles in grouse. Populations that did not show cycles carried lower levels of infection. While such effects do not preclude the action of other factors causing population cycles the evidence for other extrinsic factors or intrinsic changes in spacing behaviour is considered weak. -from Authors

UR - http://www.scopus.com/inward/record.url?scp=0026313870&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026313870&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0026313870

SP - 49

EP - 68

JO - [No source information available]

JF - [No source information available]

SN - 0042-1215

ER -