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Bruno Buzatto

Dr Bruno Buzatto

Research Fellow
Evolutionary Biology, Centre for

Contact details
Centre for Evolutionary Biology
The University of Western Australia (M092)
35 Stirling Highway
+61 8 6488 2699
Personal homepage

Research Fellow
Biological Sciences, School of

Contact details
School of Biological Sciences
The University of Western Australia (M092)
35 Stirling Highway
+61 8 6488 2699
Personal homepage
PhD W.Aust.
I am originally from Brazil, where I did my Bachelor of Science and my Master of Science degrees. I moved to Perth to start my PhD at the Centre for Evolutionary Biology (University of Western Australia) in 2009. I finished that degree in 2013, and started working as a Postdoc Research Associate at the same university. Below the details of my education and employment:


2013 – present — Postdoctoral Research Associate at the Centre for Evolutionary Biology; School of Animal Biology


2009 – 2013 —PhD in Animal Science (Centre for Evolutionary Biology), School of Animal Biology, University of Western Australia, Perth - Australia. Thesis title: “The evolution of male dimorphism in arthropods” Supervisors: Leigh W. Simmons and Joseph L. Tomkins.

2006 - 2008 — MSc in Ecology, Institute of Biology, Campinas State University (Unicamp), Campinas - Brazil. Thesis title: “Reproductive biology of the harvestman Acutisoma proximum (Arachnida: Opiliones): alternative mating strategies among males and maternal care by females” Supervisor: Glauco Machado.

2001 – 2005 — Licentiate in Biological Sciences, Campinas State University (Unicamp), Campinas - Brazil.

2001 – 2005 — Bachelor in Biological Sciences, Campinas State University (Unicamp), Campinas - Brazil.
Key research
Currently, my main research interest is male dimorphism, a phenomenon that often reflects alternative reproductive tactics among males: the large male morphs typically guard females or reproductive territories and have more elaborate weaponry; the small male morphs sneak copulations and have reduced weaponry. Male dimorphism is particularly common among arthropods, and usually results from a polyphenism: the differential expression of alternative phenotypes from a single genotype depending upon environmental conditions. I have been investigating several questions about polyphenic male dimorphism with experiments using mites, harvestmen, and dung beetles.
My interest in the evolution of alternative mating tactics and male dimorphism led me into the topic of phenotypic plasticity. Therefore, in the last 5 years, part of my research has focused on threshold traits (polyphenisms), usually from a quantitative genetics perspective.
Moreover, I am also interested in the behavioral ecology of insects and arachnids, especially their reproductive biology. My research includes the evolution of parental care, mating systems, sperm competition, and social behavior.
Machado G., B.A. Buzatto, S. García-Hernández & R. Macías-Ordóñez. 2016. Macroecology of sexual selection: a predictive conceptual framework for large-scale variation in reproductive traits. American Naturalist, 188: S8–S27.

Silva D.P., B. Vilela, B.A. Buzatto, A.P. Moczek & J. Hortal. 2016. Contextualized niche shifts upon independent invasions by the dung beetle Onthophagus taurus. Biological Invasions, published online on the 5th of July, DOI: 10.1007/s10530-016-1204-4.

Buzatto B.A., J.S. Kotiaho, J.L. Tomkins & L.W. Simmons. 2015. Intralocus tactical conflict: genetic correlations between fighters and sneakers of the dung beetle Onthophagus taurus. Journal of Evolutionary Biology, 28(3): 730-738.

Muniz D.G., P.R. Guimarães, B.A. Buzatto & G. Machado. 2015. A sexual network approach to sperm competition in a species with alternative mating tactics. Behavioural Ecology, 26(1): 121-129.

Buzatto B.A. & G. Machado. 2014. Male dimorphism and alternative reproductive tactics in harvestmen (Arachnida: Opiliones). Behavioural Processes, 109(S1): 2-13.

Wilson C.J., B.A. Buzatto, S.P. Robinson & J.L. Tomkins. 2014. Sociosexual environment influences patterns of ejaculate transfer and female kicking in Callosobruchus maculatus. Animal Behaviour, 94: 37-43.

Buzatto B.A., W.N. Hazel & J.L. Tomkins. 2014. A theoretical muddle of the conditional strategy: a comment on Neff and Svensson. Philosophical Transactions of the Royal Society B: Biological Sciences, 369(1642): 20130625.

Buzatto B.A., J.L. Tomkins, L.W. Simmons & G. Machado. 2014. Correlated evolution of sexual dimorphism and male dimorphism in a clade of Neotropical harvestmen. Evolution, 66(10): 3167-3178.

Simmons L.W. & B.A. Buzatto. 2014. Contrasting responses of pre- and post-copulatory traits to variation in mating competition. Functional Ecology, 28(2): 494-499.

Santos A.J., R.L. Ferreira & B.A. Buzatto. 2013 Two new cave-dwelling species of the short-tailed whipscorpion genus Rowlandius (Arachnida: Schizomida: Hubbardiidae) from northeastern Brazil, with comments on male dimorphism. PLoS One, 8(5): e63616.

Requena G.S., B.A. Buzatto, E.G. Martins & G. Machado. 2012. Paternal care decreases foraging activity and body condition, but does not impose survival costs to caring males in a Neotropical arachnid. PLoS One, 7(10): e46701.

Buzatto B.A., L.W. Simmons & J.L. Tomkins. 2012. Paternal effects on the expression of a male polyphenism. Evolution, 66(10): 3167-3178.

Buzatto B.A., J.L. Tomkins & L.W. Simmons. 2012. Maternal effects on male weaponry: female dung beetles produce major sons with longer horns when they perceive higher population density. BMC Evolutionary Biology, 12: 118.

Munguía-Steyer R., B.A. Buzatto & G. Machado. 2012. Male dimorphism in a Neotropical arachnid: harem size, sneaker opportunities and gonadal investment. Behavioral Ecology, 23(4): 827-835.

Buzatto B.A., L.W. Simmons & J.L. Tomkins. 2012. Genetic variation underlying the expression of a polyphenism. Journal of Evolutionary Biology, 25: 748-758.

Buzatto B.A., G.S. Requena, R.S. Lourenço, R. Munguía-Steyer & G. Machado. 2011. Conditional male dimorphism and alternative reproductive tactics in a Neotropical arachnid (Opiliones). Evolutionary Ecology, 25: 331–349.

Requena G.S., B.A. Buzatto & G. Machado. 2009. Efficiency of uniparental male and female care against egg predators in two closely-related syntopic harvestmen. Animal Behaviour, 78: 1169-1176.

Buzatto B.A., G.S. Requena & G. Machado. 2009. Chemical communication in the gregarious psocid Cerastipsocus sivorii (Psocoptera: Psocidae). Journal of Insect Behaviour, 22(5): 388-398.

Buzatto B.A. & G. Machado. 2009. Amphisexual care in Acutisoma proximum (Arachnida: Opiliones), a neotropical harvestman with exclusive maternal care. Insectes Sociaux, 56(1): 106-108.

Machado G., G.S. Requena & B.A. Buzatto. 2009. Reproductive behavior in harvestman (Arachnida): mating systems and parental care. Oecologia Brasiliensis, 13(1): 58-79.

Buzatto B.A. & G. Machado. 2008. Resource defense polygyny shifts to female defense polygyny over the course of the reproductive season of a neotropical harvestman. Behavioral Ecology and Sociobiology, 63(1): 85-94.

Contreras-Garduño J., B.A. Buzatto, M.A. Serrano-Meneses, K. Nájera-Cordero & A. Córdoba-Aguilar. 2008. The red wing spot of the American rubyspot (Hetaerina americana) as a heightened condition dependent ornament. Behavioral Ecology, 19(4): 724-732.

Buzatto B.A., G.S. Requena, E.G. Martins & G. Machado. 2007. Effects of maternal care on the lifetime reproductive success of females in a neotropical harvestman. Journal of Animal Ecology, 76(5): 937-945.

Contreras-Garduño J., B.A. Buzatto, L. Abundis & A. Córdoba-Aguilar. 2007. Wing colour properties do not reflect male condition in the American rubyspot (Hetaerina americana). Ethology, 113(10): 944-952.

Requena G.S., B.A. Buzatto & G. Machado. 2007. Habitat use, phenology, and gregariousness of the Neotropical psocopteran Cerastipsocus sivorii (Psocoptera: Psocidae). Sociobiology, 49(3): 197-214.

Machado G., G.S. Requena, B.A. Buzatto, F. Osses & L.M. Rossetto. 2004. Five new cases of paternal care in harvestmen (Arachnida: Opiliones): implications for the evolution of male guarding in the Neotropical family Gonyleptidae. Sociobiology, 44(3): 577-598.
Funding received
2015 – 2017 Discovery Early Career Researcher Award (AU$ 349,699) from the Australian Research Council.

2015 – 2017 Early Career Researcher Fellowship Support Program (AU$ 29,934) from the University of Western Australia.

2012 – 2013 PhD Completion Scholarship from UWA: AU$ 12,000 (five months).

2012 – ISBE Travel award: US$ 1,000.00 to attend the 14th International Behavioral Ecology Congress, in Lund – Sweden.

2012 – UWA Travel award: AU$ 1,100.00 to attend the 14th International Behavioral Ecology Congress, in Lund – Sweden.

2011 – UWA Travel award: AU$ 750.00 to attend the annual meeting of the Australasian Society for the Study of Animal Behaviour, in Adelaide – Australia.

2009 – 2012 —PhD scholarships: International Postgraduate Research Scholarship, CFH & EH Jenkins Award, and IDP Student Mobility Scholarship. AU$ 30,000.00 per year (for 3.5 years).

2006 – 2007 — Master research grant from CAPES (Brazil). US$ 12,127.66 (2 years).

2003 – 2005 — Undergraduate (honours) research grant from FAPESP (Brazil). US$ 4,681 (2 years).
Animal Behaviour Society
International Society for Arachnology
International Society of Behavioural Ecology
The American Arachnological Society
The Australasian Society for the Study of Animal Behaviour
The European Society for Evolutionary Biology
Honours and awards
2014 - High Achieving Young Investigator Award (AU$ 1,000 prize) from the University of Western Australia.
Useful links
Research profile
Research profile and publications

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Last updated:
Tuesday, 3 November, 2015 2:39 PM