Answers:CW2
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| - | # Chesapeake Bay Ecosystem: (20 points total) Read about the Chesapeake Bay Ecosystem from their website. Read the “Forest” link, the “Wetlands” link, the “Food Production and Consumption” link, and the “phytoplankton and microzooplankton” section. | + | # '''Chesapeake Bay Ecosystem:''' ''(20 points total)'' Read about the Chesapeake Bay Ecosystem from their website. Read the “Forest” link, the “Wetlands” link, the “Food Production and Consumption” link, and the “phytoplankton and microzooplankton” section. |
| - | # Answer the following questions: | + | # '''Answer the following questions:''' |
| - | ====a) What are wetlands? How are wetlands characterized? What are some types of wetlands? | + | ====a) 3 pts==== |
| + | ''What are wetlands? How are wetlands characterized? What are some types of wetlands?'' | ||
:transitional link between water and land which are marshes, swamps, and bogs | :transitional link between water and land which are marshes, swamps, and bogs | ||
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| - | ====b) What are the functions of wetlands? | + | ====b) 2 pts==== |
| + | ''What are the functions of wetlands?'' | ||
:some functions are protect and improve water quality, control flooding and erosion, provide habitat for terestrial and aquatic life, and recreation | :some functions are protect and improve water quality, control flooding and erosion, provide habitat for terestrial and aquatic life, and recreation | ||
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| - | ====c) What is percentage loss of Forest in the Bay area? How many tree and plant species are in the Bay area? | + | ====c) 2 pts ==== |
| + | ''What is percentage loss of Forest in the Bay area? How many tree and plant species are in the Bay area?'' | ||
:from 95% to 60%, making a 35% loss | :from 95% to 60%, making a 35% loss | ||
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| - | ====d) What are the functions of the Forest? | + | ====d) 3 pts==== |
| + | ''What are the functions of the Forest?'' | ||
:forests protect water quality, create habitat for fish and wildlife, improve air quality, encourage rescreation, and contribute to economy | :forests protect water quality, create habitat for fish and wildlife, improve air quality, encourage rescreation, and contribute to economy | ||
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| - | ====e) From the “Food Production & Consumption” section, list the types of trophs it discusses and categorize them. | + | ====e) 3 pts==== |
| + | ''From the “Food Production & Consumption” section, list the types of trophs it discusses and categorize them.'' | ||
:types of trophs: | :types of trophs: | ||
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:::blue-green algae, phytoplankton | :::blue-green algae, phytoplankton | ||
::heterotrophs | ::heterotrophs | ||
| - | :::none specifically listed | + | :::consumers, none specifically listed |
: ''see'' [http://www.chesapeakebay.net/info/ecointr6.cfm] | : ''see'' [http://www.chesapeakebay.net/info/ecointr6.cfm] | ||
| - | ====f) What would happen to the entire system if the plankton were removed? Discuss the losses and problems that this could cause. Also, discuss what would happen if an unnatural overabundance of plankton were to occur in this region. | + | ====f) 4 pts==== |
| + | ''What would happen to the entire system if the plankton were removed? Discuss the losses and problems that this could cause. Also, discuss what would happen if an unnatural overabundance of plankton were to occur in this region.'' | ||
:If the phytoplankton were removed, there would be a loss of food source and animals that rely on it would die off or move away. It would be a fundamental hazard to the entire food chain. | :If the phytoplankton were removed, there would be a loss of food source and animals that rely on it would die off or move away. It would be a fundamental hazard to the entire food chain. | ||
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| - | ====g) Wetlands are disappearing from our coastlines at an alarming rate, does this sort of thing occur inland, or is it mainly a coastal problem? Is this really a problem, or should something be done about this? Have there been any other areas where deteriorating wetlands have caused other massive problems or do you think this is just a Chesapeake Bay problem? | + | ====g) 3 pts==== |
| + | ''Wetlands are disappearing from our coastlines at an alarming rate, does this sort of thing occur inland, or is it mainly a coastal problem? Is this really a problem, or should something be done about this? Have there been any other areas where deteriorating wetlands have caused other massive problems or do you think this is just a Chesapeake Bay problem?'' | ||
:Wetlands are disappearing due to human actions such as levies, dams, canals, urban sprawl, etc. | :Wetlands are disappearing due to human actions such as levies, dams, canals, urban sprawl, etc. | ||
Current revision as of 03:37, 13 February 2006
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PHS 101 |
Complete by Feb. 12, 2006 @ 5pm |
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In-Class Coursework #02 |
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- Chesapeake Bay Ecosystem: (20 points total) Read about the Chesapeake Bay Ecosystem from their website. Read the “Forest” link, the “Wetlands” link, the “Food Production and Consumption” link, and the “phytoplankton and microzooplankton” section.
- Answer the following questions:
Contents |
a) 3 pts
What are wetlands? How are wetlands characterized? What are some types of wetlands?
- transitional link between water and land which are marshes, swamps, and bogs
- characterized by water type--salt or fresh, by vegetation, by hydrology, climate, soil, etc
- some types are Estuarine, palustrine, emergent, shrub, and forested wetlands
- see [1]
b) 2 pts
What are the functions of wetlands?
- some functions are protect and improve water quality, control flooding and erosion, provide habitat for terestrial and aquatic life, and recreation
- see [2]
c) 2 pts
What is percentage loss of Forest in the Bay area? How many tree and plant species are in the Bay area?
- from 95% to 60%, making a 35% loss
- at least 50 tree species and at least 2700 plant species, so at least 2750 total
- see [3]
d) 3 pts
What are the functions of the Forest?
- forests protect water quality, create habitat for fish and wildlife, improve air quality, encourage rescreation, and contribute to economy
- see [4]
e) 3 pts
From the “Food Production & Consumption” section, list the types of trophs it discusses and categorize them.
- types of trophs:
- saprotrophs
- bacteria
- autotrophs
- blue-green algae, phytoplankton
- heterotrophs
- consumers, none specifically listed
- saprotrophs
- see [5]
f) 4 pts
What would happen to the entire system if the plankton were removed? Discuss the losses and problems that this could cause. Also, discuss what would happen if an unnatural overabundance of plankton were to occur in this region.
- If the phytoplankton were removed, there would be a loss of food source and animals that rely on it would die off or move away. It would be a fundamental hazard to the entire food chain.
- An overabundance would slowly cause an increase in other animal populations, possibly causing an imbalance somewhere else.
g) 3 pts
Wetlands are disappearing from our coastlines at an alarming rate, does this sort of thing occur inland, or is it mainly a coastal problem? Is this really a problem, or should something be done about this? Have there been any other areas where deteriorating wetlands have caused other massive problems or do you think this is just a Chesapeake Bay problem?
- Wetlands are disappearing due to human actions such as levies, dams, canals, urban sprawl, etc.
- See Mississippi delta, for example.
