Hanna Kokko

Summary

Affiliation: University of Helsinki
Country: Finland

Publications

  1. doi request reprint From hawks and doves to self-consistent games of territorial behavior
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, FIN 00014 Helsinki, Finland
    Am Nat 167:901-12. 2006
  2. pmc Males, females and the value of toy models: a commentary on Bookstein et al. (2008)
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Helsinki, Finland
    Biol Lett 4:349-50. 2008
  3. ncbi request reprint When not to avoid inbreeding
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Finland
    Evolution 60:467-75. 2006
  4. ncbi request reprint From individual dispersal to species ranges: perspectives for a changing world
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Post Office Box 65 Viikinkaari 1, FIN 00014 Helsinki, Finland
    Science 313:789-91. 2006
  5. ncbi request reprint Why do female migratory birds arrive later than males?
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Finland
    J Anim Ecol 75:1293-303. 2006
  6. pmc Evolution of frequency-dependent mate choice: keeping up with fashion trends
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, PO Box 65 Viikinkaari 1, 00014 Helsinki, Finland
    Proc Biol Sci 274:1317-24. 2007
  7. ncbi request reprint What determines sex roles in mate searching?
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Finland
    Evolution 61:1162-75. 2007
  8. ncbi request reprint Condition-dependence, genotype-by-environment interactions and the lek paradox
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Viikinkaari 1, P O Box 65, Helsinki 00014, Finland
    Genetica 132:209-16. 2008
  9. ncbi request reprint The ecogenetic link between demography and evolution: can we bridge the gap between theory and data?
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Helsinki, Finland
    Ecol Lett 10:773-82. 2007
  10. ncbi request reprint Cooperative behaviour and cooperative breeding: what constitutes an explanation?
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, PO Box 65, Viikinkaari 1, FIN 00014 Helsinki, Finland
    Behav Processes 76:81-5. 2007

Detail Information

Publications48

  1. doi request reprint From hawks and doves to self-consistent games of territorial behavior
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, FIN 00014 Helsinki, Finland
    Am Nat 167:901-12. 2006
    ..To help arrive at conclusive answers, we suggest a standardized empirical approach to quantify prior-residence effects...
  2. pmc Males, females and the value of toy models: a commentary on Bookstein et al. (2008)
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Helsinki, Finland
    Biol Lett 4:349-50. 2008
  3. ncbi request reprint When not to avoid inbreeding
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Finland
    Evolution 60:467-75. 2006
    ..We discuss four different solutions to this enigma, and suggest that inbreeding tolerance, where it is found, should not always be attributed to a simple constraint that has prevented finding any other mate...
  4. ncbi request reprint From individual dispersal to species ranges: perspectives for a changing world
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Post Office Box 65 Viikinkaari 1, FIN 00014 Helsinki, Finland
    Science 313:789-91. 2006
    ....
  5. ncbi request reprint Why do female migratory birds arrive later than males?
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Finland
    J Anim Ecol 75:1293-303. 2006
    ..5. We also show that the effects of sex ratio biases are much stronger than those of EPY production, explore the evidence for sex ratio biases and extra-pair paternity in migratory species and suggest future research directions...
  6. pmc Evolution of frequency-dependent mate choice: keeping up with fashion trends
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, PO Box 65 Viikinkaari 1, 00014 Helsinki, Finland
    Proc Biol Sci 274:1317-24. 2007
    ....
  7. ncbi request reprint What determines sex roles in mate searching?
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Finland
    Evolution 61:1162-75. 2007
    ..The sex-specific cost hypothesis predicts the opposite pattern of female searching in high-density conditions, and it potentially applies to some species in which sperm limitation is unlikely...
  8. ncbi request reprint Condition-dependence, genotype-by-environment interactions and the lek paradox
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Viikinkaari 1, P O Box 65, Helsinki 00014, Finland
    Genetica 132:209-16. 2008
    ....
  9. ncbi request reprint The ecogenetic link between demography and evolution: can we bridge the gap between theory and data?
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Helsinki, Finland
    Ecol Lett 10:773-82. 2007
    ..We also list encouraging examples where empiricists have shown feasible ways of addressing the question, ranging from advanced data analysis to experiments and comparative analyses of phylogenetic data...
  10. ncbi request reprint Cooperative behaviour and cooperative breeding: what constitutes an explanation?
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, PO Box 65, Viikinkaari 1, FIN 00014 Helsinki, Finland
    Behav Processes 76:81-5. 2007
  11. doi request reprint Sexual conflict: the battle of the sexes reversed
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Sciences, PO Box 65, 00014 University of Helsinki, Finland
    Curr Biol 18:R121-3. 2008
    ..In most species one sex is more reluctant to mate than the other. Standard explanations invoking potential reproductive rates have shortcomings that are illustrated by a new study of eager female and reluctant male antelopes...
  12. doi request reprint Condition-dependence, genotype-by-environment interactions and the lek paradox
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Viikinkaari 1, PO Box 65, Helsinki, Finland
    Genetica 134:55-62. 2008
    ....
  13. pmc Human parental age difference and offspring count: and we still do not know what men or women want
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, PO Box 65 Viikinkaari 1, 00014 Helsinki, Finland
    Biol Lett 4:259-60; author reply 261. 2008
  14. pmc Lonely hearts or sex in the city? Density-dependent effects in mating systems
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, PO Box 65 Vükinkaari 1, 00014 Helsinki, Finland
    Philos Trans R Soc Lond B Biol Sci 361:319-34. 2006
    ..This highlights the importance of considering the interaction between mating systems and population dynamics, and we strongly encourage further work in this area...
  15. ncbi request reprint Sexual selection when fertilization is not guaranteed
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
    Evolution 59:1876-85. 2005
    ..If females lack such plasticity, however, population-wide reproductive output may be severely reduced, whereas sexual selection on male traits remains strong...
  16. doi request reprint Parental investment, sexual selection and sex ratios
    Hanna Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Helsinki, Finland
    J Evol Biol 21:919-48. 2008
    ....
  17. ncbi request reprint Useful ways of being wrong
    H Kokko
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki, Helsinki, Finland
    J Evol Biol 18:1155-7. 2005
  18. ncbi request reprint Territorial defense, territory size, and population regulation
    Andrés López-Sepulcre
    Evolutionary Ecology Research Unit, Department of Biological and Environmental Science, University of Jyvaskyla, P O Box 35, 40014 Jyvaskyla, Finland
    Am Nat 166:317-29. 2005
    ..Territoriality has often been found to increase population stability, but this may come at a cost of reduced equilibrium densities...
  19. doi request reprint Parent-offspring conflict and the evolution of dispersal distance
    Jostein Starrfelt
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Sciences, University of Helsinki, P O Box 65, Viikinkaari 1, FIN 00014 Helsinki, Finland
    Am Nat 175:38-49. 2010
    ..There is thus less conflict in nonequilibrium scenarios. In invasive scenarios with an evolving kernel shape, disruptive selection against intermediate distances can make the kernel not only fat-tailed but also bimodal...
  20. pmc How populations persist when asexuality requires sex: the spatial dynamics of coping with sperm parasites
    Hanna Kokko
    Department of Biological and Environmental Science, Laboratory of Ecological and Evolutionary Dynamics, University of Helsinki, PO Box 65 Viikinkaari 1, 00014 Helsinki, Finland
    Proc Biol Sci 275:817-25. 2008
    ..This creates a link from the evolution of sexual reproduction to that of prudent predation...
  21. pmc Females increase current reproductive effort when future access to males is uncertain
    Katja U Heubel
    Department of Biological and Environmental Science, University of Helsinki, 00014 Helsinki, Finland
    Biol Lett 4:224-7. 2008
    ..Because female clutch size decisions are much more closely linked to population dynamics than male life-history traits, plastic responses to mate-finding limitations may be an underappreciated force in population dynamics...
  22. pmc Cheating can stabilize cooperation in mutualisms
    Kevin R Foster
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Sciences, University of Helsinki, PO Box 56, 00014 Finland
    Proc Biol Sci 273:2233-9. 2006
    ..This suggests that the presence of cheaters and cheater species in many mutualisms is central to the maintenance of partner choice and, paradoxically, cooperation itself...
  23. pmc Are reproductive skew models evolutionarily stable?
    Hanna Kokko
    Department of Biological and Environmental Science, University of Jyvaskyla, FIN 40014 Jyvaskyla, Finland
    Proc Biol Sci 270:265-70. 2003
    ..It is recommended that models specify the mechanisms by which individuals can adjust their behaviour to that of others, and pay attention to changes that occur in evolutionary versus behavioural time...
  24. doi request reprint Reproductive conflict delays the recovery of an endangered social species
    Andrés López-Sepulcre
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Sciences, University of Helsinki, FI 00014 Helsinki, Finland
    J Anim Ecol 78:219-25. 2009
    ..This is the first quantitative assessment of the effects of social conflict on conservation...
  25. ncbi request reprint When density dependence is not instantaneous: theoretical developments and management implications
    Irja I Ratikainen
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Sciences, PO Box 65 University of Helsinki, 00014 Helsinki, Finland
    Ecol Lett 11:184-98. 2008
    ....
  26. doi request reprint Negative frequency-dependent selection of sexually antagonistic alleles in Myodes glareolus
    Mikael Mokkonen
    Centre of Excellence in Evolutionary Research, Department of Biological and Environmental Science, University of Jyvaskyla, Jyvaskyla, Finland
    Science 334:972-4. 2011
    ....
  27. ncbi request reprint Mate choice evolution, dominance effects, and the maintenance of genetic variation
    Laurent Lehmann
    Laboratory of Ecological and Evolutionary Dynamic, Department of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
    J Theor Biol 244:282-95. 2007
    ..Overall, our model indicates that various forms of heterozygote-favouring (or variable) female choice pose a problem for the theory of sexual ornamentation based on indirect benefits, rather than a solution...
  28. ncbi request reprint Species-level selection reduces selfishness through competitive exclusion
    D J Rankin
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
    J Evol Biol 20:1459-68. 2007
    ..Our results suggest that species-level selection and community dynamics play an important role in regulating the intensity of conflicts in natural populations...
  29. doi request reprint The mismeasurement of sexual selection
    H Klug
    Department of Biological and Environmental Science, University of Helsinki, Finland
    J Evol Biol 23:447-62. 2010
    ..These findings call into question the validity of empirical conclusions based on these measures of sexual selection...
  30. doi request reprint Do male moor frogs (Rana arvalis) lek with kin?
    T Knopp
    Ecological Genetics Research Unit, Department of Biological and Environmental Sciences, PO Box 65 FIN 00014, University of Helsinki, Finland
    Mol Ecol 17:2522-30. 2008
    ....
  31. pmc The evolution of mate choice and mating biases
    Hanna Kokko
    Department of Biological and Environmental Science, University of Jyvaskyla, PO Box 35, FIN 40014 Jyvaskyla, Finland
    Proc Biol Sci 270:653-64. 2003
    ..Finally, we suggest potentially fruitful directions for future theoretical and empirical research...
  32. doi request reprint Who to include in measures of sexual selection is no trivial matter
    Hope Klug
    Department of Biological and Environmental Science, University of Helsinki, PO Box 65, 00014 Helsinki, Finland
    Ecol Lett 13:1094-102. 2010
    ..While there is nothing wrong with focusing on particular episodes of interest, inconsistency in who is included in measures of sexual selection across studies will make it difficult to answer broad research questions...
  33. ncbi request reprint Sex, death and tragedy
    Daniel J Rankin
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Science, University of Helsinki 00014, Finland
    Trends Ecol Evol 21:225-6. 2006
    ..Their study reveals surprising parallels between sexual conflict and the tragedy of the commons, where selfish competition over females destroys the very resource (i.e. the females) over which the males are fighting...
  34. pmc Cyclic variation in seasonal recruitment and the evolution of the seasonal decline in Ural owl clutch size
    Jon E Brommer
    Division of Population Biology, Department of Ecology and Systematics, PO Box 17 Arkadiankatu 7, FIN 00014, University of Helsinki, Finland
    Proc Biol Sci 269:647-54. 2002
    ..The observed pattern can be predicted, assuming specifically shaped seasonal increases in condition across individuals...
  35. ncbi request reprint Multiple mating in the Glanville fritillary butterfly: a case of within-generation bet hedging?
    Alia Sarhan
    Department of Biological and Environmental Sciences, FI 00014 University of Helsinki, Finland
    Evolution 61:606-16. 2007
    ..The egg-laying and survival patterns are in line with the predictions, supporting the hypothesis that multiple mating in M. cinxia presents a rare case of within-generation bet hedging...
  36. doi request reprint Inertia: the discrepancy between individual and common good in dispersal and prospecting behaviour
    Maria del Mar Delgado
    Laboratory of Ecological and Evolutionary Dynamics, Department of Biosciences, University of Helsinki, Finland
    Biol Rev Camb Philos Soc 86:717-32. 2011
    ....
  37. ncbi request reprint From arctic lemmings to adaptive dynamics: Charles Elton's legacy in population ecology
    J Lindstrom
    Department of Biological and Environmental Science, University of Jyvaskyla, Finland
    Biol Rev Camb Philos Soc 76:129-58. 2001
    ....
  38. pmc Sexual reproduction and population dynamics: the role of polygyny and demographic sex differences
    J Lindstrom
    Department of Ecology and Systematics, University of Helsinki, Finland
    Proc Biol Sci 265:483-8. 1998
    ..Sexual reproduction therefore does not necessarily increase the stability of population dynamics and can have destabilizing effects, at least in species with complicated mating systems and sexual dimorphism...
  39. ncbi request reprint Can non-directional male mating preferences facilitate honest female ornamentation?
    Stephen F Chenoweth
    Ecol Lett 9:179-84. 2006
    ..However, the evolutionary stability of this prediction is dependent upon the level of error made by females when allocating resources to either signal or fecundity...
  40. ncbi request reprint Dynamics of the caring family
    Roger Hardling
    Department of Animal Ecology, Ecology Building, University of Lund, 223 62 Lund, Sweden
    Am Nat 161:395-412. 2003
    ..Instead, it is necessary to consider the inclusive fitness effect of provisioning, which is determined by a combination of relatedness, reproductive value, and the reproductive value of the offspring...
  41. ncbi request reprint Debating sexual selection and mating strategies
    Tommaso Pizzari
    Science 312:689-97; author reply 689-97. 2006
  42. pmc Can too strong female choice deteriorate male ornamentation?
    Lesley J Morrell
    Division of Environmental and Evolutionary Biology, Institute of Biomedical and Life Sciences, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK
    Proc Biol Sci 271:1597-604. 2004
    ..The evolution of female choice may therefore have a self-limiting nature when it poses a selection pressure on male resource acquisition...
  43. pmc Quantifying male attractiveness
    John M McNamara
    Department of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, UK
    Proc Biol Sci 270:1925-32. 2003
    ..The method is, however, easily extendible to other cases. An example illustrates that the sexy son phenomenon can occur when there is phenotypic inheritance of the male trait...
  44. pmc Why is mutual mate choice not the norm? Operational sex ratios, sex roles and the evolution of sexually dimorphic and monomorphic signalling
    Hanna Kokko
    Division of Environmental and Evolutionary Biology, Institute of Biomedical and Life Sciences, University of Glasgow, G12 8QQ, UK
    Philos Trans R Soc Lond B Biol Sci 357:319-30. 2002
    ..This divergence is prevented, and mutual mate choice maintained, if synergistic benefits of biparental care render parental investment both high and not too different in the two sexes...
  45. pmc The sexual selection continuum
    Hanna Kokko
    Division of Environmental and Evolutionary Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
    Proc Biol Sci 269:1331-40. 2002
    ..Costly female choice can be maintained with or without higher offspring survival...
  46. ncbi request reprint Sexually transmitted disease and the evolution of mating systems
    Hanna Kokko
    Division of Environmental and Evolutionary Biology, Institute of Biomedical and Life Sciences, University of Glasgow, United Kingdom
    Evolution 56:1091-100. 2002
    ..In this way, a sexually transmitted disease can stabilize the populationwide proportion of females that mate with the most attractive males or that seek extrapair copulations...
  47. ncbi request reprint The tragedy of the commons in evolutionary biology
    Daniel J Rankin
    Division of Behavioural Ecology, Institute of Zoology, University of Bern, Wohlenstrasse 50a, CH 3032 Hinterkappelen, Switzerland
    Trends Ecol Evol 22:643-51. 2007
    ..A central open question, however, is how often biological systems are able to resolve these scenarios rather than drive themselves extinct through individual-level selection favouring self-interested behaviours...
  48. ncbi request reprint Priority versus brute force: when should males begin guarding resources?
    Roger Hardling
    Department of Animal Ecology, University of Lund, Ecology Building, S 223 62 Lund, Sweden
    Am Nat 163:240-52. 2004
    ..The relationship between an individual's competitive ability and its timing of resource acquisition can also be nonlinear if takeovers are moderately common; if this is the case, then males of intermediate size guard the longest...