Gui Becker

Gui  Becker

Assistant Professor

Office Hours

By appointment


  • Ph.D., Ecology and Evolutionary Biology, Cornell University, 2014
  • Postdoctoral research: State University of Sao Paulo, Brazil, 2017

Research Interests

My research interests fall at the interface of wildlife epidemiology and spatial ecology, including detailed mechanistic studies of diversity-disease relationships, ecology of host microbiome, host-pathogen responses to abiotic factors, and the connectivity and dispersal of animal populations. I build spatial models and conduct both field and laboratory experiments to understand the biotic and abiotic mechanisms underlying the distribution of wildlife from local to global scales, with the overarching goal of diagnosing patterns of biodiversity threats and loss. My research is divided into four broad areas of investigation: 1) disease ecology, 2) spatial analyses of genotypes and phenotypes, 3) effects of habitat alteration on population demographics, and 4) application of ecological findings to conservation.

Selected Publications

Becker, C.G., Longo, A.V., Haddad, C.F.B., Zamudio, K.R. (2017) Land cover and forest connectivity alter the interactions among host, pathogen, and skin microbiome, Proceedings of the Royal Society of London – B, in press.

*Carvalho, T., *Becker, C.G., Toledo, L.F. (2017) Historical amphibian declines and extinctions in Brazil linked to chytridiomycosis, Proceedings of the Royal Society of London – B, 284: 20162254. *Authors contributed equally.

Becker, C.G., Greenspan, S.E., Tracy, K.E., Dash, J.A., Lambertini, C., Jenkinson, T.S., Leite, D.S., Toledo, L.F., Longcore, J.E., James, T.Y., Zamudio, K.R. (2017) Variation in phenotype and virulence among enzootic and panzootic amphibian chytrid lineages, Fungal Ecology, 26: 45-50.

Becker, C.G., Rodriguez, D., Lambertini, C., Toledo, L.F., Haddad, C.F.B. (2016) Historical dynamics of Batrachochytrium dendrobatidis in Amazonia, Ecography, 39: 954-960.

Becker, C.G., Rodriguez, D., Longo, A.V., Toledo, L.F., Haddad, C.F.B., Zamudio, K.R. (2016) Deforestation, host community structure, and amphibian disease risk. Basic and Applied Ecology, 17: 72-80.

Savage, A.E., Becker, C.G., Zamudio, K.R. (2015) Linking genetic and environmental factors in amphibian disease risk. Evolutionary Applications, 8: 560-572.

Becker, C.G., Rodriguez, D., Toledo, L.F., Longo, A.V., Lambertini, C., Correa, D.T., Leite, D.S., Haddad, C.F.B., Zamudio, K.R. (2014) Partitioning the net effect of host diversity on an emerging amphibian pathogen. Proceedings of the Royal Society of London – B, 281: 20141796.

Rodriguez, D., Becker, C.G., Pupin, N., Haddad, C.F.B., Zamudio, K.R. (2014) Long-term endemism of two highly divergent lineages of the amphibian-killing fungus in the Atlantic Forest of Brazil. Molecular Ecology, 23: 774-787.

Becker, C.G., Dalziel, B.D., Becker, M.F.K., Park, M.G., Mouchka, M. (2013) Indirect effects of human development along the coast on coral health. Biotropica, 45: 401-407.

Becker, C.G., Rodriguez, D., Longo, A.V., Talaba, A. Zamudio, K.R. (2012) Disease risk in temperate amphibian populations is higher at closed-canopy sites. PLoS One, 7: e48205.

Becker, C.G., Zamudio, K.R. (2011) Tropical amphibian populations experience higher disease risk in natural habitats. Proceedings of the National Academy of Sciences of the United States of America, 118: 9893-9898.

Velo-Anton, G., Becker, C.G., Rivera, A.C. (2011) Turtle carapace anomalies: the roles of genetic diversity and environment. PLoS One, 6:e18714.

Becker, C.G., Fonseca, C.R., Haddad, C.F.B., Prado, P.I. (2010) Habitat split as a cause of local population declines of amphibians with aquatic larvae. Conservation Biology, 24: 287-294.

Becker, C.G., Loyola, R.D., Haddad, C.F.B., Zamudio, K.R. (2010) Integrating species life-history traits and patterns of deforestation in amphibian conservation planning. Diversity and Distributions, 16: 10-19.

Becker, C.G., Fonseca, C.R., Haddad, C.F.B., Batista, R.F., Prado, P.I. (2007) Habitat split and the global decline of amphibians. Science, 318: 1775-1777.