Species Interaction.docx

1 Page
120 Views
Unlock Document

Department
Biological Sciences Program
Course
BSCI 106
Professor
Alexandra Bely
Semester
Fall

Description
Species Interaction  Levels of study: organismal, population, community: interactions among diff. species in an area, ecosystem  Key questions: what reg. pop size? What reg. species number? What reg. distribution of species?  Types of species interactions: competition (-/-), predation/parasitism (+/-), mutualism (+/+), commensalism (+/0), facilitation (+ or 0/+)  “effect”=effect on fitness of individuals involved (i.e.: survival, reproduction) o competition: mutually negative interaction between individuals resulting from resource limitation (space, niche, food, etc.); very important type of interaction in ecology, central to evolution by NATURAL SELECTION  Why is there leveling off in paramecium population? Carrying capacity, competition among individuals of SAME species (intraspecific) or among individuals of different species (interspecific), as density goes up MORE INTENSE competition  White rayed pentachaeta (pygmy daisy), highly endangered, found only on serpentine soils in one county of CA, is this
More Less

Related notes for BSCI 106

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