Feb_2-_Dichotomous_Keys

Feb_2-_Dichotomous_Keys - Announcements You MUST have the...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Announcements • You MUST have the statistics program, MINITAB downloaded to your laptop No Later Than Monday, Feb. 16. – Note concerning Mac users…Windows required • Contact CIT for help • First Quiz –Monday, Feb 9th Identifying the Biodiversity on Earth Please turn off your cell phone QUESTIONS YOU SHOULD BE ABLE TO ANSWER AFTER THIS WEEKS LECTURE AND LAB. • What is biodiversity? • Why haven’t we identified all the species that exist on earth? • What is a dichotomous key? • What are some common uses for dichotomous keys? What do we mean by Biodiversity? • Biodiversity has three main components: Genetic diversity Species diversity Ecosystem diversity Biologists Produce Global Map Of Plant Biodiversity University of California - San Diego (2007, March 22). Biologists Produce Global Map Of Plant Biodiversity. ScienceDaily . Retrieved January 31, 2008, from ht p:/ www.sciencedaily.com- /releases/2007/03/070320191114.htm Species Richness of Birds in North America
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Geographical Patterns of Species Richness • For most well-studied groups of organisms, species richness increases from the poles to the equator • The same geographical pattern is seen in the marine environment How many species are there? Total is estimated between 2 and 30 million species (even up to 150+ million) • There are about 1.8 million described and named species of organisms Terry Erwin’s estimate
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

Feb_2-_Dichotomous_Keys - Announcements You MUST have the...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online