Research Topics
| Hanna KokkoSummaryCountry: Finland Publications
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Detail Information
Publications
The evolution of mate choice and mating biasesHanna 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...- 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... 
From individual dispersal to species ranges: perspectives for a changing worldHanna 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....- How populations persist when asexuality requires sex: the spatial dynamics of coping with sperm parasitesHanna 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... - 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... - Females increase current reproductive effort when future access to males is uncertainKatja 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... - 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... - Evolution of frequency-dependent mate choice: keeping up with fashion trendsHanna 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.... 
Condition-dependence, genotype-by-environment interactions and the lek paradoxHanna 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....- From hawks and doves to self-consistent games of territorial behaviorHanna 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... - 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 - Who to include in measures of sexual selection is no trivial matterHope 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... - Parental investment, sexual selection and sex ratiosHanna 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.... - Negative frequency-dependent selection of sexually antagonistic alleles in Myodes glareolusMikael Mokkonen
Centre of Excellence in Evolutionary Research, Department of Biological and Environmental Science, University of Jyvaskyla, Jyvaskyla, Finland
Science 334:972-4. 2011.... - Sex, death and tragedyDaniel 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... - Territorial defense, territory size, and population regulationAndrés 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... - When not to avoid inbreedingHanna 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... - Lonely hearts or sex in the city? Density-dependent effects in mating systemsHanna 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... - 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... - Condition-dependence, genotype-by-environment interactions and the lek paradoxHanna 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.... - The sexual selection continuumHanna 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... - Dynamics of the caring familyRoger 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... - 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... - Debating sexual selection and mating strategiesTommaso Pizzari
Science 312:689-97; author reply 689-97. 2006 - 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... - Cheating can stabilize cooperation in mutualismsKevin 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... - Why is mutual mate choice not the norm? Operational sex ratios, sex roles and the evolution of sexually dimorphic and monomorphic signallingHanna 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... - Sexually transmitted disease and the evolution of mating systemsHanna 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... - Sexual selection when fertilization is not guaranteedHanna 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... - Sexual conflict: the battle of the sexes reversedHanna 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... - Quantifying male attractivenessJohn 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... - The tragedy of the commons in evolutionary biologyDaniel 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... - Mate choice evolution, dominance effects, and the maintenance of genetic variationLaurent 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... - Cyclic variation in seasonal recruitment and the evolution of the seasonal decline in Ural owl clutch sizeJon 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...