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The Drift
November 2, 2007
Kate Hinner, Editor
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-In This Edition–
EEB Department News
Monday Seminar Series
Tuesday “Noon” Seminar Series
Retirement Party for Bill Birky
SAMEC Request for Classroom Assistance
News from Other Areas
Center for Insect Science Seminars
ARL Division of Neurobiology Discussion Group
Laboratory of Tree-Ring Research Talk
Spring 2008 Course Announcements
Fellowship/Employment Opportunities
McGinnies Graduate Scholarship in Arid Land Studies
Internship & Volunteering Opportunities - Madagascar
General Announcements
CoSSAC 50/50 Raffle
Arthur M. Sackler Colloquia of the National Academy of Sciences
Open Dialogue with the Provost
Monday Seminar Series
Date: November 5, 2007
Time: 4:30 pm
Location: Biosciences West, Room 301
Dr. Daniel Barbash
Cornell University
http://www.mbg.cornell.edu/cals/mbg/faculty-staff/faculty/barbash.cfm#research
Host: Dr. Carlos Machado
Genetic mechanisms causing hybrid lethality
Two genetically and mechanistically independent lethalities occur in hybrids between D. melanogaster and its sibling species D. simulans. When D. melanogaster females are crossed to D. simulans males, F1 hybrid sons die as larvae. We have identified two genes, Hmr and Lhr, that interact to cause this lethality in a manner consistent with the Dobzhansky-Muller model of hybrid incompatibility evolution. We have found that cells in dying male hybrids fail to proliferate and arrest in interphase. We are currently investigating the role of Hmr and Lhr in causing this cellular defect.
When the direction of crossing is reversed, using D. simulans as the mother and D. melanogaster as the father, F1 hybrid daughters rather than sons die. This lethality occurs in embryos, and we have found that embryonic nuclei show defects in nuclear spacing, mitotic synchrony and centrosome behavior. We also find that chromosomes are frequently left behind at the metaphase plate during anaphase. These phenotypes are likely independent of Hmr and Lhr, but may involve defects in X-linked heterochromatin maintenance.
Tuesday “Noon” Seminar Series
EEB Dissertation Final Oral Presentation
Date: November 6, 2007
Time: 12:30 pm
Location: Biosciences West, Room 208
Jeff Good
Candidate for the degree of: Doctor of Philosophy
With a major in: Ecology and Evolutionary Biology
And a minor in: Ecology and Evolutionary Biology
The genetic basis of reproductive isolation between two species of house mice.
Retirement Party for Bill Birky
Please mark your calendars!
Date: November 20, 2007
Time: 5:00 – 7:00 pm
Location: Tucson Botanical Gardens
2150 N. Alvernon Way
Friends' House and Xeriscape Garden Patios
Join us as we eat, drink and celebrate 10 years of EEB memories with Bill!
If you would like to speak during the open mic, please contact Bruce Walsh (jbwalsh@u.arizona.edu) or Shanley Yates (shanley@email.arizona.edu). Hope to see you all there!
SAMEC Request for Classroom Assistance
Are you interested in giving a talk or helping out with science expertise in a K-12 classroom?
The Science and Mathematics Education Center (SAMEC) receives requests from K-12 teachers for faculty or graduate students in science, mathematics or computer science to visit their classes to share their research in the form of a talk, demonstration, or discussion of a personal career path, or to help out with a classroom activity. If you are interested in this opportunity, or if you want to know more, please contact Katrina Mangin, Director of SAMEC, at mangin@u.arizona.edu or 626-5076. Thank-you!
Center for Insect Science Seminar
Date: Monday, November 5, 2007
Time: 11:30 am
Location: Harvill Building, Room 204
Jeffrey C. Oliver
Graduate Interdisciplinary Program in Insect Science Dissertation Defense
Population, Phylogenetic, and Coalescent Analyses of Character Evolution in Gossamer-Winged Butterflies (Ledidoptera: Lycaenidae)
Laboratory of Tree-Ring Research Talk
Date: Wednesday, November 7, 2007
Time: 12:00 Noon
Location: Math East/Tree-Ring West, Room 20
Tone Marie Ektvedt
Department of Geography, University of Bergen, Norway
Forest Ecosystems in Northern Peru: Exploring ENSO based on the species Prosopis pallida, Bursera graveolens and Juglans neotropica
McGinnies Graduate Scholarship in Arid Land Studies
Application Review Date: December 1, 2007
The intent of the McGinnies Scholarship is to provide additional support to graduate students whose dissertations or theses projects involve the plants, animals, biotic history, or environment of the world’s arid and semiarid lands. The annual scholarship award is $1,000.
Additional information and application details can be found at: http://www.arid.arizona.edu/McGinnies/index.asp
Internship & Volunteering Opportunities – Madagascar
In 2008, Azafady is offering a limited number of unique internship opportunities for students to participate in humanitarian, environmental and conservation work while having the chance to see how a grassroots development NGO operates. Working closely with local communities, interns on our Pioneer Madagascar Program take part in a range of practical construction work, conservation research and educational activities, whilst our Lemur Venture scheme, new this year, provides the chance to focus on the conservation of endangered primate populations in the south-east of the island. Our internships could be beneficial to students in Ecology & Evolutionary Biology and would particularly suit those who have a specific interest in working in the international sustainable development or conservation sector.
For additional information, please visit: http://www.madagascar.co.uk/mailers/mailer_121007_mailer_us.htm
CoSSAC 50/50 Raffle
Tickets: $1.00 each or 6 tickets for $5.00
CoSSAC (College of Science Staff Advisory Council) is having a 50/50 raffle to raise funds for staff enrichment and the annual staff luncheon.
What is a 50/50 raffle? CoSSAC will take the total amount of money collected, draw one ticket and split the money with the winner. The winning ticket will be drawn on November 13th. The winner will be contacted via email or phone on Wednesday, November 14th.
If you'd like to buy tickets, please stop by Beth Sanchez’s office in BSW, Room 310. Tickets will be available until Noon, November 13th.
Good luck!
Arthur M. Sackler Colloquia of the National Academy of Sciences
Date: December 6-8, 2007
Location: Beckman Center of the National Academies, Irvine, CA
In the Light of Evolution II: Biodiversity and Extinction
Darwin’s experience as a natural historian contributed greatly to his explanation of evolution by natural selection, which stands as one of the grand intellectual achievements in the history of science. The Earth’s exuberant biodiversity is a wellspring for scientific curiosity and discovery about nature’s workings. Bringing together leading researchers and students interested in biodiversity from evolutionary as well as ecological perspectives, this colloquium seeks to synthesize recent discoveries and concepts regarding the global abundance and distribution of biodiversity, and to compare the biodiversity patterns to conditions in the near and distant evolutionary past, as well as to those plausible in the near-term future. A preliminary program can be viewed at www.nasonline.org/Sackler_biodiversity_program.
For registration information go to http://www.nasonline.org/Sackler_biodiversity
Open Dialogue with the Provost
Date: Thursday, November 29, 2007
Time: 12:00 noon until 1:00 PM
Location: Union Kiva on the main floor, northeast corner of the SUMC
The Office of the Provost has initiated a lunch-hour forum, "Open Dialogue with the Provost." This forum is designed to be an opportunity where anyone in the university community can come and ask questions of the Provost and the Provost's senior leadership team members.
Please bring your lunch and join us for open discussion and an exchange of information.
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