Abstracts (first author)

Poster 

Visualising the development of evolutionary thought: a graphical outreach project

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Author(s): Jenkins T, Quick M, Posavec S

Summary:

The general public remains confused about evolution. To prevent creationism from taking hold, there is a pressing need for both clarification and – just as importantly – inspiration. The aim of this infographic is to trace the progression of evolutionary thought from pre-Darwinian times to the present in a visually striking way. Standing at the intersection of science and art, this work shows through an innovative use of colour, text and graphics how evolution by natural selection has come to be established as the dominant force explaining the diversity of life. Our aim is to communicate the facts of evolution – but also inspire and excite – using a creative, compelling design to attract the eyes of people not normally interested in science. This poster will be made available both on request and online.



Abstracts (coauthor)

Summary:

The physiological mechanisms involved in the cost of reproduction are poorly understood. In addition, the interaction between reproduction and infection with pathogens is still not resolved. Birds infected with pathogen may be more impacted by physiological mechanisms such as oxidative stress, because of the double physiological cost of reproduction and resistance to pathogens. In this case, an increased metabolism is expected and should lead to a physiological stress involving higher oxidative stress driven by an increased in oxidant production, a higher antioxidant recruitment and/or more oxidative damage to biomolecules. Here, we investigated the effect of reproductive investment and infectious status on parental oxidative stress measures in three wild populations of the great tit, Parus major, naturally infected by Plasmodium spp. Different physiological measures involved in both oxidant production and resistance to oxidative stress were taken from parents when chicks were 14 days old: erythrocyte superoxide production, a proxy of erythrocyte mitochondria quantity (cardiolipin content), and erythrocyte membrane resistance to oxidative attacks. We found a sex dependent effect of reproductive effort on membrane resistance. We also found that parental infection with Plasmodium spp. was linked to an increased production of superoxides, which in turn indirectly decreased membrane resistance. This study suggests that breeding birds incur an additional physiological cost of reproduction linked to infection with malaria parasites.

Contacts

Chairman: Octávio S. Paulo
Tel: 00 351 217500614 direct
Tel: 00 351 217500000 ext22359
Fax: 00 351 217500028
email: mail@eseb2013.com

Address

XIV Congress of the European Society for Evolutionary Biology

Organization Team
Department of Animal Biology (DBA)
Faculty of Sciences of the University of Lisbon
P-1749-016 Lisbon
Portugal

Website

Computational Biology & Population Genomics Group 
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