Endangered Species Monday December 8 th 2014 Do

Endangered Species Monday, December 8 th, 2014

Do Now Write A if you agree with a statement, write D if you disagree with the statement and correct the statement Statement 1. Biodiversity is the number of organisms in an ecosystem 2. Extinction is a normal part of nature 3. Small areas of habitat are normally more diverse than larger areas 4. There are laws to protect species and their habitats 5. Habitats that have been harmed cannot be restored 6. Ecosystems that are wet and warm have the lowest levels of biodiversity Agree or disagree

Objectives � SWBAT order the conservation levels; extinct, endangered, threatened, and least concern. � SWBAT describe the conservation status of a species by looking at an example. Essential Questions � What are the levels of animal conservation? What do the different levels mean? Why are the definitions not very specific?

Lets go over the homework 1. Did you do it?

Vocabulary � Extinct ◦ A species that was once present on earth but has died out � Endangered ◦ In danger of becoming extinct � 3, 079 animals, 2, 655 plants (2012) � Threatened/Vulnerable ◦ A species likely to become endangered in the near future � 4, 728 animals, 4, 914 plants (2012) � Least Concern ◦ Species that are protected but not threatened or species that have been evaluated and are not qualified for another category Least Concern Threatened Endangered Extinct

With the person next to you… � Speculate clear why the definitions are not more ◦ As in “if there are under 2000 individuals the species is considered endangered” ◦ Or of there is less than 50% of the original population the species is threatened

IUCN Conservation (International Union for the Conservation of Nature � Critical Depensation ◦ A mathematical measure of biomass related to population growth rate � Rate of decline � Population size � Area of geographic distribution � Degree of population fragmentation � Example ◦ Wild Water Buffalo – Endangered – 4000 individuals ◦ Jaguar – Near threatened - ~2000 individuals

Extinct, Endangered, Threatened, Least Concern � Green – Passenger Pigeon � Yellow – Bald Eagle � Orange – Polar Bear � Pink – Green Sea Turtle 1 st Lets predict which animal will go under each classification 1. What is the conservation status of your animal. 2. Why do you think the status is what it says and in which direction is it headed?

Answer the Essential Question � What are the levels of animal conservation? What do the different levels mean? Why are the definitions not very specific?

Exit Ticket Draw a continuum of the 4 levels of conservation Predict the conservation category based on the paragraph 1. Since the introduction of the whaling ban, studies have examined whether the conservation reliant global blue whale population is increasing or remaining stable. In the Antarctic, best estimates show an increase of 7. 3% per year since the end of illegal Soviet whaling, but numbers remain at under 1% of their original levels. 1. 2. Most lions now live in eastern and southern Africa, and their numbers there are rapidly decreasing, with an estimated 30– 50% decline per 20 years in the late half of the 20 th century. Estimates of the African lion population range between 16, 500 and 47, 000 living in the wild in 2002– 2004, down from early 1990 s estimates that ranged as high as 100, 000 and perhaps 400, 000 in 1950