Class Notes (837,435)
Canada (510,273)
Biology (1,909)
BIOL 3130 (69)

Conservation Biology - 3. Global Diversity

8 Pages
Unlock Document

BIOL 3130
Andrew Mac Dougall

Conservation Biology Lecture Notes3 Global BiodiversityBiodiversity crisis Were in an age of increased species loss and increased risk of extinctionGlobal biodiversity a termed coined by ED Wilson popularized in 1988I Defining BiodiversityCan be confusingThe sum total of all living thingsNeeded a precise quantitative measureCurrently a bewildering array of diversity indices Magurran1988oRichness measure ofof species in a given areaoAbundance the number of individuals in each speciesoDominance species with most competitive advantage impacts relevantirrelevantoEvenness a numerical scale A comprehensive approach to biodiversity conservation must address multiple levels of biological organization and many different spatial and temporal scalesA true measure of diversity is quantifying the number of species in a given area as well as their relative abundance some are common and some are rare Biodiversity is hierarchicaloGenes populations communities ecosystemsoShortand longtime intervalsoLocal and regional oHuman diversity language land useGenetic DiversityoAllelic diversity of genesoPossible combinations are enormousoVariability as the source for speciationoVariability as the source for future changesoNew techniquesnew era for genetic studies of biodiversityPopulationlevel DiversityoA group of individuals of a species living in an area at the same timeoVariability as the source for speciationoVariability as the source for future changesDiversity of SpeciesoSpecies A group of actually or potentially interbreeding natural populations that are reproductively isolated from other such groupso2 million cataloged species1050 million in total
More Less

Related notes for BIOL 3130

Log In


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.