Buzatto, Bruno - University of Western Australia

研究领域

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 a series of 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.

近期论文

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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., M. Buoro, W.N. Hazel & J.L. Tomkins. 2015. Investigating the genetic architecture of conditional strategies using the Environmental Threshold Model. Proc R Soc B-Biol Sci, published online on December 16th, DOI:10.1098/rspb.2015.2075 Buzatto B.A., J.D. Roberts & L.W. Simmons. 2015. Sperm competition and the evolution of pre-copulatory weapons: increasing male density promotes sperm competition and reduces selection on arm strength in a chorusing frog. Evolution, 69(10): 2613-2624. 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.