Class Notes (836,518)
Canada (509,851)
BIOB50H3 (258)
Lecture 11

BIOB50Winter2012 Lecture 11.docx - includes notes from text and lectures (with images!)

11 Pages
120 Views
Unlock Document

Department
Biological Sciences
Course
BIOB50H3
Professor
Marc Cadotte
Semester
Winter

Description
Lecture 11 Chapter 12 Predation IntroductionRECALL over half the species on earth obtain energy by feeding on other organisms in a variety of types of interactionsAll are EXPLOITATIONa relationship in which one organism benefits by feeding on and thus directly harming anotherPrey SwitchingClassic model E1E2 is the ratio of prey 1 eaten relative to prey 2N1N2 is the ratio of prey 1 in habitst relative to prey 2C is preference for prey 1Guppies focused their foraging efforts on whichever prey species was most common in their habitat tubificids or fruit flies The solid green line indicates the results that would have been expected if the guppies had captured tubificids according to their availability instead of switching to whichever prey species was most abundant purple line second top dot when they were 60 of the prey tubificids constituted nearly 80 of the guppies dietpurple line botton dotwhen they were 20 of the prey tubificids constitutedjust 10 of the guppies diet
More Less

Related notes for BIOB50H3

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit