Abstract
A detailed and extensive mark-recapture-recovery study of red deer on the island of Rum forms the basis of the modeling of this article. We analyze male and female deer separately, and report results for both in this article, but use the female data to demonstrate our modeling approach. We provide a model-selection procedure that allows us to describe the survival by a combination of age-classes, with common survival within each class, and senility, which is modeled continuously as a parametric function of age. Dispersal out of the study area is modeled separately. Survival and dispersal probabilities are examined for the possible influence of both environmental and individual covariates, including a range of alternative measures of population density. The resulting model is succinct and biologically realistic. We compare and contrast survival rates of male and female deer of different ages and compare the factors that affect their survival. We demonstrate large differences in the rate of senescence between males and females even though their senescence begins at the same age. The differences between the sexes suggest that, in population modeling of sexually size-dimorphic species, it is important to identify sex-specific survival functions.
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Barry, S. C., Brooks, S. P., Catchpole, E. A., and Morgan, B. J. T. (2003), “The Analysis of Ring-Recovery Data Using Random Effects,” Biometrics, 59, 54–65.
Burnham, K. P. (1993), “A Theory for Combined Analysis of Ring-Recovery and Recapture Data,” in Marked Individuals in the Study of Bird Populations, eds. J.-D. Lebreton and P.M. North, Basel: Birkhauser Verlag, pp. 199–213.
Catchpole, E. A., Morgan, B. J. T., Coulson, T. N., Freeman, S. N., and Albon, S. D. (2000), “Factors Influencing Soay Sheep Survival,” Applied Statistics, 49, 453–472.
Caughley, G. (1966), “Mortality Patterns in Mammals,” Ecology, 47, 906–918.
Clutton-Brock, T. H. (1988), Reproductive Success: Studies of Individual Variation in Contrasting Breeding Systems; Chicago: Chicago University Press.
Clutton-Brock, T. H., and Coulson, T. N. (2002), “Ungulate Population Dynamics: the Devil is in the Detail,” Philosophical Transactions of the Royal Society, 357, 1299–1306.
Clutton-Brock, T. H., Coulson, T., Milner-Gulland, E. J., Armstrong, H. M. and Thomson, D. (2002), “Sex Differences in Emigration and Mortality Affect Optimal Management of Deer Populations,” Nature, 415, 633–637.
Clutton-Brock, T. H., Guinness, F. E., and Albon, S. D. (1982), Red Deer: Behaviour and Ecology of Two Sexes, Chicago: University of Chicago Press.
Conradt, L., Clutton-Brock, T. H., and Thomson, D. (1999), “Habitat Segregation in Ungulates: Are Males Forced into Suboptimal Foraging Habitats Through Indirect Competition by Females?,” Oecologia, 119, 367–377.
Conradt, L., Gordon, I. J., Clutton-Brock, T. H., Thomson, D., and Guinness, F. E. (2001), “Could the Indirect Competition Hypothesis Explain Inter-sexual Site Segregation in Red Deer (Cervus elaphus L.)?” Journal of Zoology, 254, 185–193.
Coulson, T., Guinness, F., Pemberton, J. Clutton-Brock, T. (in press), “The Demographic Consequences of Releasing a Population of Red Deer From Culling,” Ecology.
Fan, Y., Morgan, B. J. T., Catchpole, E. A., and Coulson, T. N. (2003), “Modelling the Survival and Dispersal of Red Deer Using Mark-Recapture-Recovery Data,” Technical Report UKC/1MS/03/19, University of Kent, Canterbury, England.
Festa-Bianchet, M., Gaillard, J.-M., and Cote, S. D. (2003), “Variable Age Structure and Apparent Density Dependence in Survival of Adult Ungulates,” Journal of Animal Ecology, 72, 640–649.
Gaillard, J.-M., Allaine, D., Pontier, D., Yoccoz, N. G., and Promislow, D. E. L. (1994), “Sensecence in Natural Populations of Mammals: A Reanalysis,” Evolution, 48, 509–516.
Hall, A. J., McConnell, B. J., and Barker, R. J. (2001), “Factors Affecting First-Year Survival in Grey Seals and Their Implications for Life History Strategy,” Journal of Animal Ecology, 70, 138–149.
Jorgenson, J. T., Festa-Bianchet, M., Lucherini, M., and Wishart, W. D. (1997), “Effects of Age, Sex, Disease and Density on Survival of Bighorn Sheep,” Ecology, 78, 1019–1032.
Loison, A. (1995), “Approchesintra-et inter-spécifiques de la dynamique des populations: l’exemple du chamois,” PhD thesis, Université Claude-Bernard, Lyon, France.
Loison, A., Festa-Bianchet, M., Gaillard, J.-M., Jorgenson, J. T., and Jullien, J.-M. (1999), “Age-Specific Survival in Five Populations of Ungulates: Evidence of Senescence,” Ecology, 80, 2539–2554.
Metcalfe, N. B., and Monaghan, P. (2001), “Compensation for a Bad Start: Grow Now, Pay Later?,” Trends in Ecology and Evolution, 16, 254–260.
Mysterud, A., Coulson, T., and Stenseth, N. C. (2002), “The Role of Males in the Dynamics of Ungulate Populations,” Journal of Animal Ecology, 71, 907–915.
Nasution, M. D., Brownie, C., Pollock, K. H., and Powell, R. A. (2004), “The Effect on Model Identifiability of Allowing Different Relocation Rates for Live and Dead Animals in the Combined Analysis of Telemetry and Recapture Data,” Journal of Agricultural, Biological, and Environmental Statistics, 9, 27–41.
Nichols, J. D., Hines, J. E., and Blums, P. (1997), “Tests for Senescent Decline in Annual Survival Probabilities of Common Pochards, Aythya ferina,” Ecology, 78, 1009–1018.
Pollock, K. H., Bunck, C. M., Winterstein, S. R., and Chen, C. L. (1995), “A Capture-Recapture Survival Analysis Model for Radio-Tagged Animals,” Journal of Applied Statistics, 22, 661–672.
Post, E., and Stenseth, N. C. (1999), “Climatic Variability, Plant Phenology and Northern Ungulates,” Ecology, 80, 1322–1339.
Seber, G. A. F. (1982), The Estimation of Animal Abundance and Related Parameters (2nd ed.) London: Griffin.
Sibly, R. M., Collett, D., Promislow, D. E. L., Peacock, D. J., and Harvey, P. H. (1997), “Mortality Rates of Mammals,” Journal of Zoology, 243, 1–12.
Siler, W. (1979), “A Competing-Risk Model for Animal Mortality,” Ecology, 60, 750–757.
White, G. C., and Burnham, K. P. (1999), “Program MARK: Survival Estimation from Populations of Marked Animals,” Bird Study, 46 (suppl), 120–139.
Wilby, R. L., O’Hare, G., and Barnsley, N. (1997), “The North Atlantic Oscillation and British Isles Climate Variability, 1865–1996,” Weather, 52, 266–276.
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(previously at the Institute of Mathematics and Statistics, University of Kent, Canterbury, Kent CT2 7NF, England)
(previously at the Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, England)
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Catchpole, E.A., Fan, Y., Morgan, B.J.T. et al. Sexual dimorphism, survival and dispersal in red deer. JABES 9, 1–26 (2004). https://doi.org/10.1198/1085711043172
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DOI: https://doi.org/10.1198/1085711043172