Erol’s Google Scholar Profile

Working papers and preprints

Brown, A. and Akçay, E. Phylogenetic analysis suggests joint control of transmission mode in a grass-endophyte symbiosis [on bioRxiv: doi:10.1101/085746]

Dridi, S. and Akçay, E. Learning to cooperate: The evolution of social rewards in repeated interactions [on bioRxiv, doi:10.1101/074096]

Aguilar, E. and Akçay, E. Gene-culture co-inheritance of a behavioral trait. [on bioRxiv, doi:10.1101/069286]

Bienvenu, F., Akçay, E., Legendre, S., and McCandlish, D.M. The genealogical decomposition of a matrix population model with applications to the aggregation of stages. [on bioRxiv, doi:10.1101/067793]

Zhou, H., Helliker, B. Akçay, E. Selective pressures on C4 photosynthesis evolution in grasses through the lens of optimality [on bioRxiv, doi:10.1101/048900]

Akçay, E., Meirowitz, A., and Ramsay, K. Investment, Bargaining, and Efficiency. [pdf]

Akçay, E., Roughgarden, J., Fearon, J., Ferejohn, J. & Weingast, B. Biological institutions: the political science of animal cooperation.  (available at SSRN)


Akçay, E. (2017) Population structure reduces the benefits from partner choice in mutualism. Proceedings of the Royal Society B: 20162317 [link to journal] [bioRxiv version, doi:10.1101/068445]


Ilany, A. and Akçay, E. (2016) Personality and social networks: a generative model approach. Integrative and Comparative Biology doi: 10.1093/icb/icw068  [ungated link to journal]

Ilany, A. and Akçay, E. (2016) Social inheritance can explain the structure of animal social networks. Nature Communications 7:12084 [link to open access article]

Lehmann, L., Mullon, C., Akçay, E., and Van Cleve, J. (2016) Invasion fitness and inclusive fitness in heterogenous subdivided populations. Evolution (doi: 10.1111/evo.12980) [on bioRxiv] [link to journal]

Akçay, E. and Van Cleve, J (2016) There is no fitness but fitness, and the lineage is its bearer. Phil. Trans. R. Soc. B 371: 20150085 [pdf] [link to journal]


Akçay, E., Linksvayer, T.A., and Van Cleve, J. (2015) Bridging social evolution theory and emerging empirical approaches to social behavior. Current Opinion in Behavioral Sciences 6:59–64 [pdf] [link to journal]

Jones, E.I., Afkhami, M.E., Akçay, E., Bronstein, J.L., Bshary, R., Frederickson, M.E., Heath, K.D., Hoeksema, J.D., Ness, J.H., Pankey, M.S., Porter, S.S., Sachs, J.L., Scharnagl, K. and Friesen, M.L. (2015) Cheaters must prosper: reconciling theoretical and empirical perspectives on cheating in mutualism. Ecology Letters 18:1270–1284 [pdf] [link to journal]

Akçay, E. (2015) Evolutionary models of mutualisms.  in Mutualism, edited by J. Bronstein, Oxford University Press [pdf] [link to book]

Bewick, S., Chisholm, R.A., Akçay, E., Godsoe, W. (2015) A stochastic biodiversity model with overlapping niche structure. Theoretical Ecology: 8: 81-109. [pdf] [link to journal]


Van Cleve, J. and Akçay, E. (2014) Pathways to social evolution: reciprocity, relatedness, and synergy. Evolution. 68:2245-2258 [link to journal] [final version on arXiv, bioarXiv]

Shen, S.-F., Akçay, E., Rubenstein, D.R. (2014). Does social conflict increase with group size? The American Naturalist. 183:301-310 [pdf] [link to journal]


Pringle, E. G., Akçay, E., Raab, T. K., Gordon, D. M., Dirzo, R. (2013) Availability of limiting resources determines context-dependent strength of an ant-plant-hemipteran mutualism. PLoS Biol 11(11): e1001705. doi:10.1371/journal.pbio.1001705 [link to open access article]


Akçay, E., Meirowitz, A., Ramsay, K., Levin, S. A. (2012) Evolution of cooperation and skew under imperfect information. PNAS 109: 14936-14941 [pdf] [link to journal]

Akçay, E.*, J. Van Cleve*. (2012) Behavioral dynamics in structured populations pave the way to group optimality. The American Naturalist; 179:257-269 [pdf] [link to journal]

Akçay, E. (2012) Incentives in the family II: Behavioral dynamics and the evolution of non-costly signaling. Journal of Theoretical Biology;294:9-18 [pdf] [Supplementary Material] [link to journal]


Şekercioğlu, Ç.H., S. Anderson, E. Akçay, et al. (10 other authors). ‘Turkey’s globally important biodiversity in crisis’ Biological Conservation;144: 2752-2769 [pdf] [link to journal] [Highlighted by NY Times Green Blog]

Akçay, E. and E. Simms. 2011. ‘Negotiation, sanctions and context dependency in the legume-rhizobium mutualism.‘ The American Naturalist;178(1):1-14.  [pdf] [link to journal]

Mesterton-Gibbons, M., S. Gavrilets, J. Gravner and E. Akçay. 2011. ‘Models of coalition or alliance formation.’ Journal of Theoretical Biology;274:187-204. [pdf] [link to journal]

Akçay, E. and J. Roughgarden. 2011. ‘The evolution of payoff matrices: providing incentives to cooperate.’ Proc. R. Soc. B; 278:2198-2206.  [pdf] [Supplementary Material]  [link to journal] [Recommended by Faculty of 1000]


Roughgarden, J. and E. Akçay. 2010. ‘Do we need a sexual selection 2.0?’ Animal Behaviour;79(3):e1-e4 [link]
(a commentary on Clutton-Brock 2009 [link], and Carranza 2009 [link])

Roughgarden, J. and E. Akçay. 2010. ‘Final response: sexual selection needs an alternative’ Animal Behaviour;79(3):e18-e23 [link]  (our response to Shuker 2010 [link], who joined the exchange)

[pdf of the whole exchange]


Akçay, E.*, J. Van Cleve*, M. W. Feldman and J. Roughgarden. 2009. ‘A theory for the evolution of other-regarding motivations integrating proximate and ultimate perspectives’ PNAS;106: 19061-19066 [link] [pdf w/ SI]

Akçay, E. and J. Roughgarden. 2009. ‘The perfect family: biparental care in animals.’ PLoS One;4:(10)e7345 [link] [pdf]


Akçay, E. and J. Roughgarden. 2007. ‘Extra-pair parentage: a new theory based on transactions in a cooperative game.’ Evolutionary Ecology Research; 9:1223-1243 [link to journal] [pdf]

Akçay, E. and J. Roughgarden. 2007. ‘Extra-pair paternity in birds: Review of the genetic benefits.’ Evolutionary Ecology Research; 9:855-868 [link to journal] [pdf]

Akçay, E. and J. Roughgarden. 2007. ‘Negotiation of mutualism: rhizobia and legumes.’ Proc. R. Soc. B; 274:25 – 32. [link to journal] [pdf]


Roughgarden, J., M. Oishi and E. Akçay. 2006. ‘Reproductive social behavior: Cooperative games to replace sexual selection.’ Science; 311:965-970 [link to journal] [pdf]
(also see the letters criticizing the article, and our response)

*: equal contributions

Letters, commentary, etc.

Akçay, E. An apology for inclusive fitness. (review of Marshall, J. 2015. Social evolution and inclusive fitness theory.) Evolution (forthcoming) [pdf]

Şekercioğlu, Ç.H., S. Anderson, E. Akçay and R. Bilgin ‘Turkey’s rich natural heritage under assault’ Science; 334: 1637-1638 [link] [pdf] (letter detailing recent conservation issues in Turkey)

Akçay, E. and J. Roughgarden. 2007. ‘Neither should competition be assumed.’ Trends in Ecology and Evolution; 22:4 [link to journal] [pdf]

Some press:

NIMBioS interview
Another interview (also in Turkish) — Turkish Journal
An interview (in Turkish) — Evrim Çalışkanları
Overthrowing Darwin’s number 2 — Seed Magazine

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