chap 12 book notes

6 Pages
Unlock Document

University of Toronto Scarborough
Biological Sciences
Marc Cadotte

Chapter 12 Case study: snowhoe hare cycles Hudson bay hare population cycle (fluctuations) Lynx are the predators. Hare are major part of their diet o Therefore, lynx population is driven by hare population Hare population fluctuated in synchrony across Canada o Proved by birth, death, dispersal rates, reproductive, survival rates WHY. Hypothesis: 1. Food supplies lower when hare population is high: not the best answer though 2. Predation: 95% of death are by predators o But still three unanswered questions 1. Why hare birth rates drop during the decline phase of the cycle 2. Why hare numbers sometimes rebound slowly after predator numbers plummet 3. Why the physical condition of hares worsens as hares decrease in numbers Introduction Exploitation: relationship one organism benefits by feeding on and harming another Herbivore: eats tissues or internal fluids of living plants Predator: kills and eats other organisms (prey) Parasite: lives inon an organism (host) Parasitism: insects lay eggs in another insect. After hatching they eat the host In natural world, every single species do not fall under only one category, there are exceptions
More Less

Related notes for BIOC50H3

Log In


Don't have an account?

Join OneClass

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

Sign up

Join to view


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.