Exam 3 Review Sessions

In case you didn't see it on MyCourses, the review sessions for Tuesday's exam will be held:

Sunday, May 1, 4-6pm at the Science Center
Monday, May 2, 4-6pm in Salomon 202

Come with questions.

Three Seas Program info session

Northeastern University's Three Seas Program is a one year marine biology program that takes a fully integrated approach to class, lab and field learning at marine laboratories in 3 diverse marine systems (Nahant, MA; Bocas del Toro, Panama; Friday Harbor, WA). It offers broad exposure to the many different fields within marine science as well as training in research skills (e.g. scientific diving) and scientific communication.

Sal Genovese, the director of Three Seas (and Jon's former PhD student) will be in Walter Hall from 4-6pm on Wednesday, 27 April to speak about the program and answer questions from interested students. As part of the 26th Three Seas class (09-10), I highly recommend the program to anyone who is keen on getting a hands-on, field-based education in marine science. If you're interested in learning more about the program and/or like the idea of learning about something in class and then jumping right into the water to see it in action, this program is for you (and you should come by and/or talk to me about it)

Also: check out the Three Seas blog to see what the current batch of students have to say about their experiences.

-Natalie

Marine Biology/EEB open house on Friday

Hey guys,

The Brown Marine Biology DUG is hosting an open house for potential concentrators and anyone interested in marine science at Brown. Come talk to current concentrators, graduate students and professors and eat free Meeting Street cookies in the Walter Hall conference room (where ecology discussion sections are held) from 1-3pm on Friday, April 8. Hope to see you there!

Whales and forams and everything in between.

Ecology field trip

Everyone should have heard from your TAs about this, but the field trip has been postponed to Thursday morning. We will meet at the same time and place - 7.45 am at the corner of Brown and Olive Streets.

Bring pencils and notebooks and come dressed appropriately - it can be windy on the shore and in the forest, there will be some navigating through brambles and up slopes (see below for some pictures on what it can be like).

Scientists at Work- Turtles and TEDs

Hey guys,
I found this entry written by a postdoc at the University of Washington. Check it out - it has a great video of a TED in action!

http://scientistatwork.blogs.nytimes.com/2011/03/22/how-to-not-catch-a-sea-turtle/?ref=science




-Asya

Questions to consider while reviewing for Exam #2

What is the relationship between r and λ? How is λ related to the stable age distribution (SAD)? What determines SAD / what would make a population's SAD change?

For the metapopulation model, what does it mean when df/dt=0? What symbol is used to represent the fraction of patches occupied at this state?

What are the differences between interference and exploitative competition? Describe and give examples. Can these have the same effects on population growth of the species involved?

Explain how the logistic growth equation can be thought of as modelling competitive interactions. Is this incorporated in the Lotka-Volterra models anywhere? How? Would it ever make sense to NOT incorporate this?

In the simple LV competition model, we use the notation that β is the effect of species 1 on the growth of species 2. Would β change if there were more of species 1? Would β change if there were more of species 2?

To answer the previous questions - no, not in this model. β is per capita effects. But would it ever make sense to have β change? Give an example that illustrates what β represents.

Exam 2 Review Sessions

Review sessions for the second exam will be held:

Sunday, 20 March, 7-9pm in the Walter Hall conference room
Monday, 21 March, 4-6pm in Salomon 202

Come prepared with questions!