Transcript What you will learn today - Milton

Learning Targets
“I can…”
• Define “biodiversity”
• List the four levels of biodiversity
• Provide an example of each of the four
levels of biodiversity.
• State the five biggest threats to
biodiversity in our world.
• Explain how species diversity is decreased
by human disturbance under most
circumstances.
Biodiversity
Chapter 6: Humans in the
Biosphere
What is biodiversity?
1. Biodiversity is:
a. the variety or richness of life at all structural
levels (molecular/genetic, species, ecosystem).
b. an essential renewable resource.
c. exploited and depleted by human activities
2.The current rate of biodiversity loss is
comparable to previous extinction events.
What is
Biodiversity?
Journey through the
Ndoki Forest
What is Biodiversity?
3. The variety of life at all levels of organization
a.Genes
b. Individuals
c. Populations
d. Species
e. Communities
f. Ecosystems
g. Global
What is Biodiversity?
4. Example
• California
• Congo
Biological Diversity
Worksheet
How do humans affect
biodiversity?
How do humans affect
biodiversity?
H
Habitat loss, including that caused by human-induced
climate change.
I
Invasive species harmful aliens, including predators,
diseases, and competitors that displace native species
P
Pollution Oil spills, human agricultural waste,
fertilization, pesticides, acid deposition, greenhouse
gases etc
P
Population, Human overpopulation to be exact, a root
cause of the other four factors
O
Overharvesting, Overuse hunting, fishing, gathering
References
• http://www.ngsprints.co.uk/images/M/459860.jpg
• http://www.digitalfrog.com/resources/archives/strata.jpg
• http://www.geography.hunter.cuny.edu/~tbw/wc.notes/15.climates.v
eg/veg.images/rainforest/rainforest.structure.diagram.jpg
• http://www.hhmi.org/biointeractive/putting-foodtable?utm_source=BioInteractive+News&utm_campaign=ecda1a5c
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