(Mal)adaptation

When adaptation proceeds, population performance is not guaranteed to improve in any meaningful demographic sense. It may even decrease. Here are plenty of examples how such a thing can happen, and some thoughts about what it all means.

Ekrem, R.K. & Kokko, H. In press. Sexual conflict over phenological traits: Selection for protandry can lock populations into temporally mismatched reproduction. Evolution.
pdfKokko, H. 2021. The stagnation paradox: the ever-improving but (more or less) stationary population fitness. Proceedings of the Royal Society of London B 288: 20212145.
pdfSapage, M., Varela, S.A.M. & Kokko, H. 2021. Social learning by mate-choice copying increases dispersal and reduces local adaptation. Functional Ecology 35: 705–716.
 pdfKokko, H., Chaturvedi, A., Croll, D., Fischer, M.C., Guillaume, F., Karrenberg, S., Kerr, B., Rolshausen, G. & Stapley, J. 2017. Can evolution supply what ecology demands? Trends in Ecology & Evolution 32: 187-197.
haikuDay, E. & Kokko, H. 2015. Relaxed selection when you least expect it: why declining bird populations might fail to respond to phenological mismatches. Oikos 124: 62–68.
pdfKokko, H., Griffith, S.C. & Pryke, S.R. 2014. The hawk-dove game in a sexually reproducing species explains a colourful polymorphism in an endangered bird. Proceedings of the Royal Society of London B 281: 20141794.
pdfHarts, A., Schwanz, L. & Kokko, H. 2014. Demography can favour female-advantageous alleles. Proceedings of the Royal Society of London B 281: 20140005.
haikuShaw, A.K., Jalasvuori, M. & Kokko, H. 2014. Population-level consequences of risky dispersal. Oikos 123: 1003-1013.
haikuLehtonen, J., Schmidt, D.J., Heubel, K. & Kokko, H. 2013. Evolutionary and ecological implications of sexual parasitism. Trends in Ecology & Evolution 28: 297-306.
haikuHolman, L. & Kokko, H. 2013. The consequences of polyandry for population viability, extinction risk and conservation. Philosophical Transactions of the Royal Society of London B 368: 20120053.
haiku  pdfLehtonen, J., Jennions, M.D. & Kokko, H. 2012. The many costs of sex. Trends in Ecology & Evolution 27: 172–178.
haiku  pdfKokko, H. 2011. Directions in modelling partial migration: how adaptation can cause a population decline and why the rules of territory acquisition matter. Oikos 120: 1826–1837.
haiku  pdfKokko, H. & Heubel, K.U. 2011. Prudent males, group adaptation, and the tragedy of the commons. Oikos 120: 641–656 (an invited Per Brinck Oikos Award article).
haiku pdfRankin, D.J., Dieckmann, U. & Kokko, H. 2011. Sexual conflict and the tragedy of the commons. American Naturalist 177: 780-791.
haiku pdfDelgado, M.D.M, Ratikainen, I.I. & Kokko, H. 2011. Inertia: the discrepancy between individual and common good in dispersal and prospecting behaviour. Biological Reviews 86: 717-732.
pdfLópez-Sepulcre, A., Kokko, H. & Norris, K. 2010. Evolutionary conservation advice for despotic populations: Habitat heterogeneity favours conflict and reduces productivity in Seychelles Magpie Robins. Proceedings of the Royal Society of London B 277: 3477-3482.
pdfHeubel, K.U., Rankin, D.J. & Kokko, H. 2009. How to go extinct by mating too much: Population consequences of male mate choice and efficiency in a sexual-asexual species complex. Oikos 118: 513-520.
pdfLópez-Sepulcre, A., Norris, K. & Kokko, H. 2009. Reproductive conflict delays the recovery of an endangered social species. Journal of Animal Ecology 78: 219-225.
pdfKokko, H., Heubel, K. & Rankin, D.J. 2008. How populations persist when asexuality requires sex: the spatial dynamics of coping with sperm parasites. Proceedings of the Royal Society of London B 275: 817-825.
pdfRankin, D.J., Bargum, K. & Kokko, H. 2007. The tragedy of the commons in evolutionary biology. Trends in Ecology & Evolution 22: 643-651.
pdfKokko, H. & Brooks, R. 2003. Sexy to die for? Sexual selection and the risk of extinction. Annales Zoologici Fennici 40: 207-219 (invited review).
pdfKokko, H. 1999. Cuckoldry and the stability of biparental care. Ecology Letters 2: 247-255.
pdfKokko, H. 1999. Competition for early arrival in migratory birds. Journal of Animal Ecology 68: 940-950.

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