The Guppy Project


  • El-Sabaawi, R. W., Bassar, R. D., Rakowski, C., Marshall, M. C., Bryan, B. L., Thomas, S. N., Pringle, C., Reznick, D. N. and Flecker, A. S. 2015. Intraspecific phenotypic differences in fish affect ecosystem processes as much as bottom–up factors. Oikos, 124: 1181–1191. 
  • El‐Sabaawi, R. W., Marshall, M. C., Bassar, R. D., López‐Sepulcre, A., Palkovacs, E. P., & Dalton, C. 2015. Assessing the effects of guppy life history evolution on nutrient recycling: from experiments to the field. Freshwater Biology, 60(3):590-601
  • Ghalambor, C. K., Hoke, K. L., Ruell, E. W., Fischer, E. K., Reznick, D. N., & Hughes, K. A. 2015. Non-adaptive plasticity potentiates rapid adaptive evolution of gene expression in nature.  Nature, 525: 372–375. 
  • Bassar, R. D., Heatherly, T., Marshall, M. C., Thomas, S. A., Flecker, A. S., Reznick, D. N. 2015. Population size-structure-dependent fitness and ecosystem consequences in Trinidadian guppies. Journal of Animal Ecology,  doi: 10.1111/1365-2656.12353. 
  • Sullam, K.E., Dalton C.M., Russell J.A.,Kilham S.S. , El-Sabawaii R., German D.P., Flecker A.S., 2015. Changes in digestive traits and body nutritional composition accommodate a trophic niche shift in Trinidadian guppies. Oceologia, 177(1):245-57. 
  • Fitzpatrick S. W., Gerberich J. C., Kronenberger J., Angeloni L. M., Funk W.C., 2015 Locally adapted traits maintained in the face of high gene flow. Ecology Letters, 18, 37-47. 
  • El-Sabaawi, R. W., R. D. Bassar, C. Rakowski, S. N. Thomas, M. C. Marshall, C. M. Pringle, B. Bryan, D. N. Reznick, and A. S. Flecker. 2015Intraspecific phenotypic differences in fish affect ecosystem proceses as much as bottom-up factors. Oikos, 000: 001–011 
  • Fraser, B.A., Künstner, A., Reznick, D.N., Dreyer, C., and Weigel, D. 2014. Population genomics of natural and experimental populations of guppies (Poecilia reticulata). Molecular Ecology, 24:389-408. 
  • El Sabaawi, R. W.,  Travis, J., Zandonà E., McIntyre, P. B., Reznick, D. N., Flecker, A. 2014. Intraspecific variability modulates interspecific variability in animal organismal stoichiometry. Ecology & Evolution, 4(9), 1505-1515
  • Furness, A I. & Reznick D.N. 2014. The comparative ecology of a killifish (Rivulus hartii) across aquatic communities differing in predation intensity. Evolutionary Ecology Research, 16(3), 249-265
  • Fitzpatrick, S. W., J. Torres-Dowdall, D. N. Reznick, C. K. Ghalambor and W. C. Funk. 2014.  Parallelism isn’t perfect: Could disease and flooding drive a life-history anomaly in Trinidadian guppies?  American Naturalist, 183: 290-300. 
  • Travis, J., Reznick, D.N., Bassar, R.D., Lopez-Sepulcre, A., Ferriere, R. & Coulson, T. 2014. Do eco-evo feedbacks help us understand nature? Answers from studies of the Trinidadian guppy.  Advances in Ecological Research, 50: 1-40. 

  • Handelsman, C. A., Broder, E. D., Dalton, C. M., Ruell, E. W., Myrick, C. A., Reznick, D. N., & Ghalambor, C. K. 2013. Predator-induced phenotypic plasticity in metabolism and rate of growth: rapid adaptation to a novel environment. Integrative and comparative biology, 53(6), 975-988. 

  • Turcotte, M. M., Reznick, D. N., & Hare, J. D. 2013. Experimental test of an eco-evolutionary dynamic feedback loop between evolution and population density in the green peach aphid. American Naturalist, 181(S1), S46-S57. 
  • Travis, J., Leips, J., & Rodd, F. H. 2013. Evolution in population parameters: density-dependent selection or density-dependent fitness?. American Naturalist, 181(S1), S9-S20. 
  • Dargent, F., Scott, M. E., Hendry, A. P., & Fussmann, G. F. 2013. Experimental elimination of parasites in nature leads to the evolution of increased resistance in hosts. Proc. R. Soc. B, 280:  1773.  
  • López-Sepulcre A, Gordon SP, Paterson IG, Bentzen P & Reznick DN. 2013. Beyond lifetime reproductive success: the posthumous reproductive dynamics of male Trinidadian guppies. Proc. R. Soc. B, 280: 1763. 
  • Ruell EW, Handelsman CA, Hawkins CL, Sofaer HR, Ghalambor CK & Angeloni L. 2013. Fear, food and sexual ornamentation: plasticity of colour development in Trinidadian guppies. Proc. R. Soc. B, 280: 1758. 
  • Reznick, DN. 2013. A critical look at reciprocity in ecology and evolution: Introduction to the Symposium. American Naturalist, 181: S1-S8. 
  • Ferriére R & Legendre S. 2013. Eco-evolutionary feedbacks, adaptive dynamics and evolutionary rescue. Phil. Trans. R. Soc. B. 368: 168. 
  • Fraser DF & Lamphere BA. 2013. Experimental evaluation of predation as a facilitator of invasion success in a stream fish. Ecology, 94: 640-649. 
  • Bassar RD, López-Sepulcre A, Reznick DN & Travis J. 2013. Experimental evidence for density-dependent regulation and selection on Trinidadian guppy life histories. American Naturalist, 181: 25-38. 
  • Reznick, D. N., Bassar, R. D., Travis, J., & Helen, R. F. 2012. Life-history evolution in guppies VIII: the demographics of density regulation in guppies (poecilia reticulata). Evolution, 66: 2903-2915. 
  • Marshall MC, Binderup AJ, Zandonà E, Goutte S, Bassar RD, El-Sabaawi RW, Thomas SA, Flecker AS, Kilham SS, Reznick DN & Pringle CM. 2012. Effects of consumer interactions on benthic resources and ecosystem processes in a Neotropical streamPlos ONE, e45230.
  • Kohler T, Heatherly TN, El-Sabaawi RW, Zandonà E, Marshall MC, Flecker AS, Pringle CM, Reznick DN & Thomas SA. 2012. Flow, nutrients, and light availability influence Neotropical epilithon biomass and stoichiometry. Freshwater Science, 31: 1019-1034.
  • Stegen JC, Enquist BJ & Ferriére R. 2012. Eco-evolutionary community dynamics: covariation between diversity and invasibility across temperature gradients. American Naturalist, 180: e110-126. 
  • Torres-Dowdall J, Handelsman CA, Reznick DN & Ghalambor CK. 2012. Local adaptation and the evolution of phenotypic plasticity in Trinidadian guppies (Poecilia reticulata). Evolution, 66: 2432-3443.
  • Bassar RD, Ferriére R, López-Sepulcre A, Marshall MC, Travis J, Pringle MC & Reznick DN. 2012. Direct and indirect ecosystem effects of evolutionary adaptation in the Trinidadian guppy (Poecilia reticulata)American Naturalist, 180: 167-185.
  • Torres-Dowdall J, Handelsman CA, Ruell EW, Auer SK, Reznick DN & Ghalambor CK. 2012. Fine-scale local adaptation in life histories along a continuous environmental gradient in Trinidadian guppies. Functional Ecology, 26: 616-627.
  • El-Sabaawi RW, Zandonà E, Kohler TJ, Marshall MC, Moslemi JM, Travis J, López-Sepulcre A, Ferriére R, Pringle CM, Thomas SA, Reznick DN & Flecker AS. 2012. Widespread intraspecific organismal stoichiometry among populations of the Trinidadian guppy (Poecilia reticulata)Functional Ecology, 26: 666-676.
  • El-Sabaawi RW , Kohler TJ , Zandoná E , Travis J , Marshall MC , Thomas SA, Reznick DN, Walsh M, Gilliam J, Pringle CM & Flecker AS. 2012. Environmental and organismal predictors of intraspecific variation in the stoichiometry of a Neotropical freshwater fishPLoS ONE, 7: e3.
  • Auer, SK, López-Sepulcre, A., Heatherly T, Kohler T, Bassar RD, Thomas SA & Reznick DN. 2012. Life histories have a history: Effects of past and present condition son adult somatic growth rates in wild Trinidadian guppies. Journal of Animal Ecology, 81: 818-826.
  • Furness AI, Walsh MR and Reznick DN. 2011. Convergence of life-history phenotypes on a Trinidadian killifish (Rivulus hartii). Evolution, 66: 1240-1254.
  • Gordon SP, López-Sepulre A, and Reznick DN. 2012. Predation-associated differences in the sex linkage of guppy male coloration. Evolution, 66: 912-918.
  • Turcotte, M, Reznick DN, and Hare JD. 2011.  Experimental assessment of the impact of rapid evolution on population dynamics.  Evolutionary Ecology Research, 13:113-131
  • Zandonà E, Auer SK, Kilham SS, Howard JL, López-Sepulcre A, O’Connor MP, Bassar RD, Osorio A, Pringle CM and Reznick DN. 2011. Diet quality and prey selectivity correlate with life histories and predation regime in Trinidadian guppies. Functional Ecology, 25: 964-973.
  • Jørgensen C, Auer SK,  and Reznick DN.  2011.  A model for optimal offspring size in fish, including live-bearing and parental effects. American Naturalist, 177: E119-13. 
  • Walsh, MR and Reznick DN. 2011. Experimentally induced life-history evolution in a killifish in response to the introduction of guppies. Evolution. 64: 1021-1035.
  • Walter RP, Blum MJ, Snider SB, Paterson IG, Bentzen P, Lamphere BA, and Gilliam, JF. 2011. Isolation and differentiation of Rivulus hartii across Trinidad and neighboring islands. Molecular Ecology, 20: 601-618.
  • Fraser DF, Brosseau CJ, Cohen KL, and Morse-Goetz SA. 2011. Guppies as heterospecific facilitators: a precursor of exploratory behavior? Behavioral Ecology and Sociobiology, 46.
  • de Villemereuil, P. B. and López-Sepulcre, A. 2011. Consumer functional responses under intra- and inter-specific interference competitionEcological Modelling. 222: 419-426.
  • Walsh, MR, Fraser DF, Bassar, RD and Reznick, DN. 2010. The direct and indirect effects of guppies: implication for life-history evolution in Rivulus hatiiFunctional Ecology. 25: 227-237.
  • Auer, SK. 2010. Phenotypic plasticity in adult life-history strategies compensates for a poor start in life in Trinidadian guppies (Poecilia reticulata). American Naturalist. 176: 818-829.
  • Bassar RD, López-Sepulcre A, Walsh MR, Turcotte MM, Torres-Mejía M and Reznick DN. 2010. Bridging the gap between ecology and evolution: Integrating density regulation and life history evolution. The Year in Evolution 201017-34. 
  • Auer SK, Arendt JD, Chandramouli R and Reznick DN. 2010. Juvenile compensatory growth has negative consequences for reproduction in Trinidadian guppies (Poecilia reticulata). Ecology Letters. 13: 998-1007.
  • Bassar RD, Marshall MC, López-Sepulcre A, Zandonà E, Auer SK, Travis J, Pringle CM, Flecker AS, Thomas SA, Fraser DF and Reznick DN. 2010. Local adaptation in Trinidadian guppies alters ecosystem processes. PNAS, 108: 3616-3621.
  • Walsh, MR and Reznick DN. 2010. Influence of the indirect effects of guppies on life-history evolution in Rivulus hartii. Evolution. 64: 1583-1593.
  • Dercole F, Ferriére R and Rinaldi S. 2010. Chaotic Red Queen coevolution in three-species food chains. Proc. R. Soc. B. 277: 2321–2330.
  • Stegen, J, Enquist B and Ferriére R. 2009. Advancing the metabolic theory of biodiversity. Ecology Letters, 12: 1001-1015.
  • Ferriére R and Tran VC. 2009. Stochastic and deterministic models for age-structured populations with genetically variable traits. ESAIM Proc. 27: 289-310.
  • Palkovacs EP, Marshall MC, Lamphere BA, Lynch BR, Weese DJ, Fraser DF, Reznick DN, Pringle CM and Kinnison MT 2009. Experimental evaluation of evolution and coevolution as agents of ecosystem change in Trinidadian streams. Phil. Tran. R. Soc. B, 364: 1617-1628.
  • Walsh MR and Reznick DN. 2009. Phenotypic diversification across an environmental gradient: A role for predators and resource availability on the evolution of life histories. Evolution, 63:3201-3213.
  • Jones EI, Ferriere R and Bronstein JL. 2009. Eco-evolutionary dynamics of mutualists and exploiters. American Naturalist 174: 780-794.
  • Walsh MR and Reznick DN. 2008. Interactions between the direct and indirect effects of predators determine life history evolution in a killifish. PNAS, 105: 594-59.

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