Tim Coulson

Summary

Affiliation: Imperial College
Country: UK

Publications

  1. doi request reprint Modeling effects of environmental change on wolf population dynamics, trait evolution, and life history
    Tim Coulson
    Department of Life Sciences, Imperial College London, Silwood Park, Ascot, SL5 7PY, UK
    Science 334:1275-8. 2011
  2. pmc Using evolutionary demography to link life history theory, quantitative genetics and population ecology
    Tim Coulson
    Department of Life Sciences, Imperial College London, Silwood Park SL5 7PY, UK
    J Anim Ecol 79:1226-40. 2010
  3. ncbi request reprint Estimating the functional form for the density dependence from life history data
    T Coulson
    Department of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire, United Kingdom
    Ecology 89:1661-74. 2008
  4. pmc Estimating individual contributions to population growth: evolutionary fitness in ecological time
    T Coulson
    Imperial College Division of Biology and Centre for Population Biology, Faculty of Life Sciences Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Proc Biol Sci 273:547-55. 2006
  5. pmc The dynamics of a quantitative trait in an age-structured population living in a variable environment
    Tim Coulson
    Department of Life Sciences, Imperial College London, Silwood Park SL57PY, United Kingdom
    Am Nat 172:599-612. 2008
  6. ncbi request reprint The evolutionary demography of ecological change: linking trait variation and population growth
    Fanie Pelletier
    Division of Biology and the Natural Environment Research Council NERC Centre for Population Biology, Imperial College London, Silwood Park, Ascot, Berkshire, SL5 7PY, UK
    Science 315:1571-4. 2007
  7. pmc Decomposing variation in population growth into contributions from environment and phenotypes in an age-structured population
    Fanie Pelletier
    Division of Biology and the NERC Centre for Population Biology, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Proc Biol Sci 279:394-401. 2012
  8. doi request reprint The dynamics of phenotypic change and the shrinking sheep of St. Kilda
    Arpat Ozgul
    Department of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Science 325:464-7. 2009
  9. doi request reprint Coupled dynamics of body mass and population growth in response to environmental change
    Arpat Ozgul
    Department of Life Sciences, Imperial College London, Ascot, Berkshire SL5 7PY, UK
    Nature 466:482-5. 2010
  10. pmc The population growth consequences of variation in individual heterozygosity
    Martina M I Di Fonzo
    Department of Life Sciences, Imperial College London, Ascot, Berkshire, United Kingdom
    PLoS ONE 6:e19667. 2011

Detail Information

Publications37

  1. doi request reprint Modeling effects of environmental change on wolf population dynamics, trait evolution, and life history
    Tim Coulson
    Department of Life Sciences, Imperial College London, Silwood Park, Ascot, SL5 7PY, UK
    Science 334:1275-8. 2011
    ....
  2. pmc Using evolutionary demography to link life history theory, quantitative genetics and population ecology
    Tim Coulson
    Department of Life Sciences, Imperial College London, Silwood Park SL5 7PY, UK
    J Anim Ecol 79:1226-40. 2010
    ..7. The approach we describe has the potential to explain within and between species patterns in quantitative characters, life history and population dynamics...
  3. ncbi request reprint Estimating the functional form for the density dependence from life history data
    T Coulson
    Department of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire, United Kingdom
    Ecology 89:1661-74. 2008
    ..The simple method we develop has potential to provide substantial insight into the relative contributions of population and individual-level processes to the dynamics of populations in stochastic environments...
  4. pmc Estimating individual contributions to population growth: evolutionary fitness in ecological time
    T Coulson
    Imperial College Division of Biology and Centre for Population Biology, Faculty of Life Sciences Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Proc Biol Sci 273:547-55. 2006
    ....
  5. pmc The dynamics of a quantitative trait in an age-structured population living in a variable environment
    Tim Coulson
    Department of Life Sciences, Imperial College London, Silwood Park SL57PY, United Kingdom
    Am Nat 172:599-612. 2008
    ..The age-structured Price equation we derive has the potential to provide considerable insight into the processes generating now frequently reported cases of rapid phenotypic change...
  6. ncbi request reprint The evolutionary demography of ecological change: linking trait variation and population growth
    Fanie Pelletier
    Division of Biology and the Natural Environment Research Council NERC Centre for Population Biology, Imperial College London, Silwood Park, Ascot, Berkshire, SL5 7PY, UK
    Science 315:1571-4. 2007
    ..Our results suggest that there is substantial opportunity for evolutionary dynamics to leave an ecological signature and visa versa...
  7. pmc Decomposing variation in population growth into contributions from environment and phenotypes in an age-structured population
    Fanie Pelletier
    Division of Biology and the NERC Centre for Population Biology, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Proc Biol Sci 279:394-401. 2012
    ....
  8. doi request reprint The dynamics of phenotypic change and the shrinking sheep of St. Kilda
    Arpat Ozgul
    Department of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Science 325:464-7. 2009
    ..Our results enable us to explain why selection has so little effect even though weight is heritable, and why environmental change has caused a decline in the body size of Soay sheep...
  9. doi request reprint Coupled dynamics of body mass and population growth in response to environmental change
    Arpat Ozgul
    Department of Life Sciences, Imperial College London, Ascot, Berkshire SL5 7PY, UK
    Nature 466:482-5. 2010
    ..Our results help explain how a shift in phenology can cause simultaneous phenotypic and demographic changes, and highlight the need for a theory integrating ecological and evolutionary dynamics in stochastic environments...
  10. pmc The population growth consequences of variation in individual heterozygosity
    Martina M I Di Fonzo
    Department of Life Sciences, Imperial College London, Ascot, Berkshire, United Kingdom
    PLoS ONE 6:e19667. 2011
    ..We demonstrate that although heterozygosity is associated with some components of fitness, most notably adult male reproductive success, in general it is only weakly associated with population growth...
  11. ncbi request reprint Effects of sampling regime on the mean and variance of home range size estimates
    Luca Börger
    Division of Biology and Centre for Population Biology, Faculty of Life Sciences, Imperial College, Silwood Park, Ascot, Berkshire SL5 7PY, UK
    J Anim Ecol 75:1393-405. 2006
    ..Statistical results are reliable only if the whole sampling regime is standardized. We derive practical guidelines for field studies and data analysis...
  12. doi request reprint Population responses to perturbations: the importance of trait-based analysis illustrated through a microcosm experiment
    Arpat Ozgul
    Department of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, United Kingdom
    Am Nat 179:582-94. 2012
    ..In conclusion, we demonstrate how a trait-based demographic approach provides further insight into transient population dynamics...
  13. doi request reprint Habitat dependence and correlations between elasticities of long-term growth rates
    Thomas H G Ezard
    Division of Biology, Faculty of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, United Kingdom
    Am Nat 172:424-30. 2008
    ..This potentially informative detail is neglected by deterministic analysis, yet it highlights one difficulty when extrapolating results from long-term analysis to shorter-term environmental change...
  14. doi request reprint Senescence rates are determined by ranking on the fast-slow life-history continuum
    Owen R Jones
    Division of Biology and Centre for Population Biology, Imperial College London, Silwood Park Campus, Ascot, Berks SL5 7PY, UK
    Ecol Lett 11:664-73. 2008
    ..Focusing on one aspect of life history - survival or recruitment - can provide reliable information on overall senescence...
  15. pmc Individual differences, density dependence and offspring birth traits in a population of red deer
    Katie V Stopher
    Division of Biology, Faculty of Life Sciences, Imperial College at Silwood Park, Ascot, Berks SL5 7PY, UK
    Proc Biol Sci 275:2137-45. 2008
    ..Analyses using dominance or age at primiparity to define maternal quality showed no significant interactions with population density, highlighting the difficulties of defining a consistent measure of individual quality...
  16. pmc Linking the population growth rate and the age-at-death distribution
    Susanne Schindler
    Imperial College London, Ascot, SL5 7PY, United Kingdom
    Theor Popul Biol 82:244-52. 2012
    ..We apply our new approximation to 46 mammalian life tables (including humans) and show that it is on par with the most prominent other approximations...
  17. ncbi request reprint Correlations between age, phenotype, and individual contribution to population growth in common terns
    Thomas H G Ezard
    Division of Biology, Faculty of Life Sciences, Imperial College at Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Ecology 88:2496-504. 2007
    ..These results also demonstrate the importance of correcting for age when identifying factors associated with changes in seabird phenology...
  18. ncbi request reprint The demographic consequences of the cost of reproduction in ungulates
    Gil Proaktor
    Division of Biology and Centre for Population Biology, Imperial College, Silwood Park, Ascot, Berkshire, SL5 7PY, United Kingdom
    Ecology 89:2604-11. 2008
    ..This suggests that even moderate costs of reproduction may have a major negative effect on population dynamics of ungulates...
  19. pmc Age-related shapes of the cost of reproduction in vertebrates
    G Proaktor
    Division of Biology, Centre for Population Biology, Imperial College, Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Biol Lett 3:674-7. 2007
    ..These findings suggest that there may be predictable differences in the age-related shape of the cost of reproduction between species, but further research is required to identify the mechanisms generating such differences...
  20. ncbi request reprint Conservation: Reproductive collapse in saiga antelope harems
    E J Milner-Gulland
    Department of Environmental Science and Technology, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
    Nature 422:135. 2003
  21. ncbi request reprint Evolutionary responses to harvesting in ungulates
    G Proaktor
    Division of Biology and Centre for Population Biology, Imperial College, Silwood Park, Ascot, Berkshire, SL5 7PY, UK
    J Anim Ecol 76:669-78. 2007
    ..However, it crashes under intense harvesting resulting in a population skewed to light, young and, therefore, less reproductive animals...
  22. ncbi request reprint The contributions of age and sex to variation in common tern population growth rate
    T H G Ezard
    Division of Biology, Faculty of Life Sciences, Imperial College at Silwood Park, Ascot, Berkshire SL5 7PY, UK
    J Anim Ecol 75:1379-86. 2006
    ..Understanding this relationship and its consequences for population persistence and evolutionary change demands closer examination of the lives, and deaths, of the individuals within populations within species...
  23. doi request reprint Re-evaluating the effect of harvesting regimes on Nile crocodiles using an integral projection model
    Kevin Wallace
    Division of Ecology and Evolution, Imperial College London, Silwood Park, Ascot, Berkshire, SL5 7PY, UK
    J Anim Ecol 82:155-65. 2013
    ....
  24. doi request reprint Towards a general, population-level understanding of eco-evolutionary change
    Isabel M Smallegange
    Division of Biology, Imperial College London, Silwood Park, Ascot, SL5 7PY, UK
    Trends Ecol Evol 28:143-8. 2013
    ..We discuss key questions in population biology that can be examined using these models, the answers to which are essential for a general, population-level understanding of eco-evolutionary change...
  25. doi request reprint Density dependence in group dynamics of a highly social mongoose, Suricata suricatta
    Andrew W Bateman
    Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
    J Anim Ecol 81:628-39. 2012
    ..6. Our findings highlight the need to consider demographic processes and density dependence in subpopulations before drawing conclusions about how behaviour affects population processes in socially complex systems...
  26. ncbi request reprint The stochastic demography of two coexisting male morphs
    Isabel M Smallegange
    Division of Biology, Imperial College London, Silwood Park, Ascot SL5 7PY United Kingdom
    Ecology 92:755-64. 2011
    ..We advocate that stochastic demography can offer a powerful approach to identify and understand the circumstances under which genetic polymorphisms can be maintained in stochastic environments...
  27. doi request reprint A web resource for the UK's long-term individual-based time-series (LITS) data
    Owen R Jones
    NERC Centre for Population Biology, Division of Biology, Imperial College London, Silwood Park Campus, Ascot, Berks SL5 7PY, UK
    J Anim Ecol 77:612-5. 2008
  28. doi request reprint From physiology to space use: energy reserves and androgenization explain home-range size variation in a woodland rodent
    Ben Godsall
    Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot, SL5 7PY, UK
    J Anim Ecol 83:126-35. 2014
    ....
  29. doi request reprint Heterozygosity-fitness correlations and associative overdominance: new detection method and proof of principle in the Iberian wild boar
    Aurelio F Malo
    Department of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, UK
    Mol Ecol 18:2741-2. 2009
    ..The results are relevant for wild boar management but, more generally, they demonstrate how single-locus HFCs could be used to identify coding loci under selection in free-living populations...
  30. ncbi request reprint An integrated approach to identify spatiotemporal and individual-level determinants of animal home range size
    Luca Börger
    Division of Biology and Centre for Population Biology, Faculty of Life Sciences, Imperial College London, Silwood Park Campus, Ascot, Berkshire SL5 7PY, United Kingdom
    Am Nat 168:471-85. 2006
    ..We suggest that the appropriate choice of scale and definition requires a good understanding of the ecology and life history of the study species. Our findings contrast with several common assumptions about roe deer behavior...
  31. ncbi request reprint Estimating selection on neonatal traits in red deer using elasticity path analysis
    T Coulson
    Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, United Kingdom
    Evolution 57:2879-92. 2003
    ....
  32. ncbi request reprint Red deer stocks in the Highlands of Scotland
    T H Clutton-Brock
    Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
    Nature 429:261-2. 2004
    ..Although there would be environmental benefits in reducing deer numbers, there is an equal need to reduce the numbers of hill sheep in many parts of the Highlands...
  33. ncbi request reprint Why large-scale climate indices seem to predict ecological processes better than local weather
    T B Hallett
    Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
    Nature 430:71-5. 2004
    ....
  34. pmc Comparative ungulate dynamics: the devil is in the detail
    T H Clutton-Brock
    Large Animal Research Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
    Philos Trans R Soc Lond B Biol Sci 357:1285-98. 2002
    ....
  35. ncbi request reprint Rapidly declining fine-scale spatial genetic structure in female red deer
    D H Nussey
    Institute of Evolutionary Biology, University of Edinburgh, EH9 3JT, UK
    Mol Ecol 14:3395-405. 2005
    ..We argue that both increasing female population size and decreasing polygyny could explain the decline in female population genetic structure...
  36. ncbi request reprint Factors influencing soay sheep survival: a Bayesian analysis
    R King
    School of Mathematics and Statistics, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK
    Biometrics 62:211-20. 2006
    ..Following model averaging, features that were not previously detected, and which are of ecological importance, are identified...
  37. ncbi request reprint Does heterozygosity estimate inbreeding in real populations?
    F Balloux
    Department of Genetics, University of Cambridge, Downing Street, Cambridge CB2 3EH, UK
    Mol Ecol 13:3021-31. 2004
    ..Conversely, if heterosis provides the answer, there need to be many more polymorphisms with major fitness effects and higher levels of linkage disequilibrium than are generally assumed...