BioDiversityBioDiversity

Lions and Tiger Lillies and BacteriaLions and Tiger Lillies and Bacteria

What you should be able to doWhat you should be able to do

Describe the diversity of species types on Earth, Describe the diversity of species types on Earth, relating the difference between known numbers relating the difference between known numbers and estimated numbersand estimated numbers

List and describe 3 levels of biodiversityList and describe 3 levels of biodiversity Explain four ways in which biodiversity is Explain four ways in which biodiversity is

important to ecosystems and humansimportant to ecosystems and humans Analyze the potential value of a single speciesAnalyze the potential value of a single species Key Terms: biodiversity, gene, keystone Key Terms: biodiversity, gene, keystone

species, ecotourismspecies, ecotourism

Biodiversity-What is It? Biodiversity-What is It?

Biodiversity is short for “biological diversity” Biodiversity is short for “biological diversity” and refers to the number and variety of and refers to the number and variety of different species in a given area.different species in a given area.

Humans need to understand and preserve Humans need to understand and preserve biodiversity for our own survivalbiodiversity for our own survival

Tropical rainforest contain an extraordinary Tropical rainforest contain an extraordinary variety of species, scientists are still variety of species, scientists are still discovering new species everyday.discovering new species everyday.

Information CheckInformation Check

Biodiversity meansBiodiversity means A. Biological diversity and refers to the A. Biological diversity and refers to the

number and variety of different species in a number and variety of different species in a given areagiven area

B. Number and kinds of ecosystems on the B. Number and kinds of ecosystems on the planetplanet

C. Number and kinds of geologic land forms C. Number and kinds of geologic land forms in illinoisin illinois

The Answer is A The Answer is A

Biological diversity and refers to the number Biological diversity and refers to the number and variety of different species in a given and variety of different species in a given areaarea

Known vs Unknown DiversityKnown vs Unknown Diversity The number of known species The number of known species

on earth is approx. 1.7 million.on earth is approx. 1.7 million. The most abundant group of The most abundant group of

organisms are insectsorganisms are insects The actual number of species The actual number of species

on earth is unknown.on earth is unknown. The accepted number of The accepted number of

known and unknown species known and unknown species on earth is 10 million on earth is 10 million 10/29/200910/29/2009

An organisms is considered to An organisms is considered to be “known” when it has been be “known” when it has been collected and described collected and described scientifically.scientifically.

Most unknown species exist in Most unknown species exist in hard to explore areas.hard to explore areas.

3 Levels of Biodiversity3 Levels of Biodiversity 1. 1. Species Diversity-Species Diversity-all the differences between all the differences between

populations of species as well as between species populations of species as well as between species Ex. Gray squirrels in IL. and Wis.Ex. Gray squirrels in IL. and Wis.

2. 2. Ecosystem Diversity-Ecosystem Diversity-variety of habitats, variety of habitats, communities between ecosystems Ex. Grasslands communities between ecosystems Ex. Grasslands in IL and Grasslands in Kenyain IL and Grasslands in Kenya

3. 3. Genetic Diversity-Genetic Diversity-variety of all the different variety of all the different genes-pieces of DNA that code for a trait genes-pieces of DNA that code for a trait contained in all the members of a population of a contained in all the members of a population of a species species Ex. Monarch butterflies with more orange Ex. Monarch butterflies with more orange and those with less orange coloration.and those with less orange coloration.

Information CheckInformation Check

What are the 3 levels of Biodiversity?What are the 3 levels of Biodiversity? 1. Species1. Species 2. Ecosystem2. Ecosystem 3. Genetic3. Genetic

4 4 Benefits of BiodiversityBenefits of Biodiversity1.Biodiversity is connected to Ecosystem Health1.Biodiversity is connected to Ecosystem HealthEvery species is either dependent on or depended upon by at least one Every species is either dependent on or depended upon by at least one

other species. When one species disappears a strand in the food web other species. When one species disappears a strand in the food web is removedis removed..

Species that are critical to the function of an ecosystem is a Species that are critical to the function of an ecosystem is a Keystone Keystone speciesspecies. Ex. Loss of wolves led to explosion of deer population in . Ex. Loss of wolves led to explosion of deer population in IllinoisIllinois

2.Genetic Variety increases the chances that species will survive 2.Genetic Variety increases the chances that species will survive environmental changes. When populations shrink, genetic diversity environmental changes. When populations shrink, genetic diversity decreases.decreases.

3.Scientific community continues to find new uses for biological material for 3.Scientific community continues to find new uses for biological material for food, clothing and medicinefood, clothing and medicine

Ex. Clothing made from sustainable crops such as flax, Ex. Clothing made from sustainable crops such as flax, Taxol an anticancer drug derived from the North American Pacific Yew Tree.Taxol an anticancer drug derived from the North American Pacific Yew Tree.Cultivation of new varieties of Corn-North America, Wheat-Africa, Rice-IndiaCultivation of new varieties of Corn-North America, Wheat-Africa, Rice-India4. Value biodiversity because we enjoy green spaces and undisturbed land.4. Value biodiversity because we enjoy green spaces and undisturbed land.Ex. Ecoturism- a form of tourism that supports conservation and sustainable Ex. Ecoturism- a form of tourism that supports conservation and sustainable

development of ecolologically unique area-Tours of the Grand Canyondevelopment of ecolologically unique area-Tours of the Grand Canyon

Information CheckInformation Check

Explain four ways in which biodiversity is Explain four ways in which biodiversity is important to ecosystems and humansimportant to ecosystems and humans

1.1. 2.2. 3.3. 4.4.

Biodiversity LabBiodiversity LabOwl Pellet DissectionOwl Pellet Dissection

In teams of 2 you are going to examine Barn In teams of 2 you are going to examine Barn Owl Pellets-the expelled undigested portions of Owl Pellets-the expelled undigested portions of consumed animals, that owls have consumed. consumed animals, that owls have consumed.

This activity is to help you understand the This activity is to help you understand the dependence relationships of organisms in dependence relationships of organisms in ecosystems.ecosystems.

You will match the bones of the consumed You will match the bones of the consumed animals against a chart to identify what the owl animals against a chart to identify what the owl ate and then answer the questions on the ate and then answer the questions on the handout. Glue the bones to the chart, place handout. Glue the bones to the chart, place any unmatched bones in your plastic bag.any unmatched bones in your plastic bag.

Homework-Due 4-20 and 4-Homework-Due 4-20 and 4-2121

A. Create a concept map using the main ideas A. Create a concept map using the main ideas and the key terms from the PowerPoint and and the key terms from the PowerPoint and information from each section from chapter 10 information from each section from chapter 10 section 1. Due 4-20section 1. Due 4-20

B. Create a food chain with a producer, primary, B. Create a food chain with a producer, primary, secondary and tertiary consumer then predict secondary and tertiary consumer then predict what the consequences will be to the chain and what the consequences will be to the chain and ecosystem if one of the links is removed. ecosystem if one of the links is removed. Due 4-21Due 4-21

C. Prepare an argument to convince someone C. Prepare an argument to convince someone that they should care about biodiversity-Due 4-24that they should care about biodiversity-Due 4-24