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Erika Fernlund Isaksson

Doktorand

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Arbetar vid Zoologiska institutionen
E-post erika.f.isaksson@zoologi.su.se
Besöksadress Svante Arrheniusväg 18 B
Rum D 547
Postadress Zoologiska institutionen: Etologi 106 91 Stockholm

Om mig

I am a PhD student in sexual selection working under the supervision of Dr. John Fitzpatrick. In this doctoral thesis, I will work with the pygmy halfbeak (Dermogenys colletti), a species showing a wide range of sexually selected traits including weaponry and ornamentation as well as associated behaviours of courtship and contest competition (pre-mating selection). Since female halfbeaks engage in multiple mating, there is also sexual selection after mating in the form of sperm competition and crypic female choice. Plus, males invest in large testes relative to their body size, up to 8-10%! 

Male (under) courting a female halfbeak. Credits: Hannah Ogden.

 

The planned projects include assessing condition dependence and trade-offs between sexually selected traits using two resource manipulation experiments. Futhermore, I will employ a quantitative genetics breeding design to examine genetic variation and covariation between sexually selected traits. 

Senast uppdaterad: 22 september 2020

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