Come in quietlyGet ready for a quiz

Announcements

Quiz- FridayEcology Unit Test- 4/11Lab Report Due-4/11- We will spend time next week writing it-Notebook Check Date Change

- 4/10=2 grades

Get Ready for NotesPg. 81-82

Title: Biodiversity

Which ecosystem has more biodiversity?

Think- Write down you answer on pg. 81 and explain what biodiversity meansPair- share with your elbow partner you answer and reasoningShare- share with the class your answer and reasoning

1 2

Species: Group of organisms that can interbreed.

The more species in an ecosystem, the more stable and healthy the ecosystem.

BiodiversityBio= Life

Diverse= Different

Variety of life in one area; the # of species

in that area.

Check for Understanding• Where do you see the most

biodiversity?• Why do you think it has the most

biodiversity?• Where do you see the least

biodiversity?• Why do you think it has the least

biodiversity?

Measuring BiodiversitySpecies richness- # of

different speciesSpecies evenness- # of

individuals per speciesGenetic diversity- varieties of

individuals in a species

Which has more Species Richness?

Both!= 7

Species

Which has more Species Evenness?

What has more Species Richness?

So why is diversity

important?

Click icon to add picture

Natural Threats

Biodiversity lessens the threat

Higher chance for survival

Only some would die but the rest of the species would live.

Genetics of certain individuals allow it to survive better. They will have offspring.

Predation, Natural

Catastrophes, Social Changes

and Genetic Inconsistencies can kill a whole

species or a large group of

individuals.

Without Biodiversity

Extinction would occur Loss of resources (food,

medicine, shelter)

What threatens Biodiversity?

Limited resources- not enough for everyone

Overexploitation- killing or harvesting and over selling

Introduction of non-native species.

These are things that are lessening our biodiversity

amongst living and nonliving organisms

Let’s Check It Out- biodiversity with

Bill Nyehttp://

www.youtube.com/watch?v=qZJJWYGIb44

Let’s Practice- pg. 83

(15 min ONLY)

BEHAVIOARL EXPECTATIONS: Silence Independent Assigned seat

Biodiversity Lab- Pg. 84

Assigned lab group Read directions Listen to Ms. Schlansky’s directions

DON’T EAT THE CANDY