Abstracts (first author)

Invited Speaker 

Data Access and Scientific Societies

Author(s): Meagher TR

Summary:

As part of the changing landscape of science, data archiving is becoming a widespread practice. This has in turn created an opportunity to more directly integrate archived data resources into teaching at all levels. For example, it is possible to develop student exercises that reconstruct the underlying analysis presented in published work, and perhaps to explore other dimensions of such work in creative ways. In order to facilitate such exploration-based learning, there is a need for developing scientific data as a teaching tool. An approach to doing so being led by the Ecological Society of America, in collaboration with the Society for the Study of Evolution and other scientific societies, has been to establish an online resource library of peer-reviewed data-based educational modules, EcoED (http://ecoed.esa.org/). In the very near future, this online resource is planned to grow to include various modules, including one geared to the evolution community, EvoED (http://evoed.evolutionsociety.org/). Integration of the vast online resource into educational modules that encourage exploration and analytical approaches to science is an important step change in science teaching that will promote better understanding among students of science as a process as well as a product.



Abstracts (coauthor)

Summary:

Heterostylous plant populations usually undergo high level of disassortative mating due to differentiated pollen transfer and heteromorphic incompatibility system. Stylar dimorphism lacks perfect reciprocity between morphs, thus it is considered unstable. However, it is very frequent in Narcissus. We hypothesize that enough level of disassortative pollen transfer might account for its maintenance. We investigated mating patterns in style dimorphic Narcissus papyraceus, a species with dimorphic and monomorphic populations for the long-styled morph. We set twelve experimental populations in two different sites within the dimorphic and the monomorphic regions and exposed them to natural pollinators. Two different approaches based on paternity analysis revealed increased rates of disassortative mating in most of experimental populations. In a second experiment, we assessed the role of different types of floral visitors on pollen transfer. We set emasculated (receptive) and intact (donor) flowers of each morph in the field, and collected single-visited receptive flowers to examine the pollen load deposited on stigmas. Long-tongued pollinators enhanced disassortative pollen transfer to the short-styled morph, in agreement with paternity experiment. In contrast, short-tongued insects were low efficient pollinators of the long-styled morph, and incapable to pollinate the short-styled morph. Our study provides empirical support for the hypothesis that disassortative mating maintains stylar dimorphism in the genus Narcissus. Despite of our first approach could not explain the loss of the short-styled morph in the north range of distribution of the species, the second experiment points out to a possible role of short-tongued insects, as previous correlational studies had proposed.

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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