Biodiversity & Island Biogeography
Ecosystem Services
Ecological Tolerance
Disruptions & Adaptations
Succession & Keystone Species
100
Why is genetic diversity important within a population?
It makes it more likely a species will survive environmental disruption or disease.
100
Humans use wood to build furniture and as fuel to burn and warm their homes. What category of ecosystem services is represented here?
Provisioning
100
The range of conditions that an organism can survive, grow, and reproduce within is called what?
Range of Tolerance
100
Predictable environmental disturbances such as seasons in Chicago, or high and low tide, are put into what category?
Periodic Disturbances
100
What organisms begin to grow first during the pioneer stage of primary succession?
Mosses, algae, and lichen
200
What is the term used to describe the percentage of different species within an ecosystem?
Species Evennesss
200
People pay a fee to park and hike at a National Park. What ecosystem service is this an example of?
Cultural
200
List three different abiotic conditions that we could analyze range of tolerance for.
Temperature, Salinity, Oxygen Levels, flow rate, sunlight, Phosphate level, Nitrogen level, etc.
200
Define adaptation
A physical characteristic that allows an individual within a population to survive and reproduce
200
An species in a food web that is not very abundant but has a large impact on the balance of other organisms in the web is called a ________________________.
KEYSTONE SPECIES
300
What is the effect of habitat fragmentation on habitat islands?
Decrease in biodiversity on the habitat islands
300
Bats eat insects that could harm a farmer's crops. Bees pollinate the plants on the farm. What ecosystem service is represented?
Supporting
300
A scientist has three fish tanks of different temperatures and puts 3 guppies in each tank. He measures the speed at which the fish swim in each tank in order to assess their range of tolerance. What is the independent variable in this experiment?
The different temperatures of the fish tank water.
300
Hurricanes, droughts, and wildfires are examples of what category of environmental distrubance?
Episodic
300
Large shade tolerant trees are abundant in which stage of primary and secondary succession?
Climax Community
400
What is the term used to describe the phenomenon of environments becoming separated by human development?
Habitat Fragmentation
400
A scientist learns about the medicinal values of plants. He uses this knowledge to develop pharmaceutical products that are sold across the country. What ecosystem service is represented?
Cultural
400
Describe what could happen to an organism in the zone of physiological stress. Give at least two examples.
Infertility, sluggishness, lack of growth, decreased respiration, etc.
400
What is the relationship between temperature, carbon dioxide levels, and sea level?
As carbon dioxide increases, temperature increases, and sea level rises due to melting glacial ice.
400
What type of plants would be abundant during the mid-successional stage?
Shrubs, bushes, and fast growing trees like aspen or pine
500
State the theory of island biogeography in entirety.
Larger islands have higher species richness than smaller islands. Islands closer to the mainland have higher species richness than farther islands.
500
Trees photosynthesize, and help balance out carbon dioxide between the atmosphere and plant life. Trees also filter out pollutants from the air. What ecosystem service is represented?
Regulating
500
Come up to the board and identify the three different parts of the graph.
Top: Range of Tolerance
Middle: Optimal Zone
Left and Right Outer Edge: Zone of Intolerance
500
What are some natural causes of climate change on Earth over the last 800,000 years?
Changes in Earth's orbit and tilt
500
Draw a 4 level trophic pyramid including otters, kelp, sea urchins, and orca whales. Then explain how removing the keystone species affects the other trophic levels.
Removing the otter due to orca hunting caused an increase in the sea urchin population and a drastic decline in the kelp.