About me

Born as Gustavo Requena Santos, I decided to adopt my first surname to sign scientific papers instead of my last name, since Santos is the second most common surname just in Brazil and I would not want to share misunderstandings with more than 13 million people. I graduated as a biologist from the Universidade Estadual de Campinas (Brazil) in 2004 and since my senior thesis I have been studying exclusive paternal care. I quantified the costs and the benefits of male egg-guarding behavior and addressed questions regarding mutual mate choice and sexual selection using harvestmen species as model organisms. [read the extended version]


Research interests

My research focuses on the evolution and the maintenance of traits related to parental care and sexual selection, particularly in species in which males make a great direct contribution to the offspring’s fitness. I have been conducting empirical studies with species of Neotropical arachnids with exclusive paternal care, collecting data from field natural observations and captivity experimental manipulations. During my current postdoc, I am going to use a modelling approach to investigate the co-evolutionary feedbacks between male investment and biased paternity among the offspring through sexual selection.


Current research

I am currently a postdoctoral fellow at the Yale University, in the research group of Dr. Suzanne H Alonzo. Due to the intricate inter-relationships between males’ and females’ decisions, I am interested to elucidate how male parental effort may affect the evolution of post-copulatory strategies that biases paternity, both in males and in females. In this context, I am going to develop theoretical models and validate them using data available in the literature mainly for fishes and insects, integrating parental investment and sexual selection theories in a wide range of organisms.