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34 Cards in this Set
- Front
- Back
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A better way of fishing for the US and Canada that spreads out the time when fishers can get to their limit is called....
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the IQ or individual quota system
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In commercial fishermen lingo, the limit he can catch is....
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(TAC) Total allowable Catch
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Ecosystems provide a lot ___ ___ that many of us fail to realize would cost us lots of money if we had to pay for those serices.
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Natural services
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One acre of wetlands is estimated to provide $___ in services for one year.
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$100,000
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When natural resources are used by humans in a managed, regulated, ans sustainable way, we say we are practicing....
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conservation
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When natural resources are set aside and not used by humans (in order to protect them), we call this....
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preservation
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Occasionally cutting aforest and then letting it regrow is an act of ....
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conservation
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Never cutting a forest and thus creating a "virgin" forest is an act of ...
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preservation
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Another name for wild game is...
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"bush meat"
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When people harvest resources for food, shelter, tools, fuel, and clothing for their personal use and trade, we call this a ___ use.
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consumptive
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When ecosystems are exploited for economics gain such as for timber, bush meat, fish, non-wood forest products, we call it a ____ use.
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productive
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Cork, Brazil nuts, & rattan are example of _____ forest products.
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non-wood
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The highest possible rate of use of an ecosystem can be "use" and still replace and maintain itself is M___ S____ Y___.
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Maximum Sustainable Yield
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When we're not so sure of how damaging a human activity may be then it is wise to adhere to the p__ p___.
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precautionary principle
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Maximum sustainable yield is closely related to c___ c___ of an ecosystem.
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carrying capacity
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A resource that's owned by many people in common or by no one (like grasslands, open ocean, etc.), is called....
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commons
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When "common" resources are exploited until ruined, we call it....
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tragedy of the commons
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A way to avoid "tragedy of the commons" is to ___ or ___.
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have private ownership of a resource
regulate access (laws) |
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Examples of tragedy of the commons include...
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overharvesting of clams
overfishing groundwater depletion overgrazing |
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We ruined a particular wetland in the US. It has now become our largest restoration project. It is...
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Florida Everglades
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Florida's Everglades were ruined when we .....
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drained and planted it with sugar cane.
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Because of the numerous services they provide, one of the most destructive events we cause is....
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deforestation
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Some services that forests provide....
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ecosystem productivity and nutrients
biodiversity & habitat soil maintenance & protection Ground/surface water collection & maintenance of quality carbon sink forest products |
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When all of a stand of trees are cut we call it...
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clear-cutting (It leaves a bad scar on the land.)
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When only mature trees are removed, making it a more diverse forest, (but harder to harvest), we call it...
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selective-cutting
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When a forest is selectivley (partially) cut, then the remaining trees...
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reseed themselves and provide wildlife habitat
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The main reason that developing countries cut/burn their forests is....
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their population is growing rapidly and they need the forest products for fuel or food directly or to sell wood to developed countries for cash.
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A major area where fish are harvested is called a...
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fishery
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Many US fisheries are "recovering" from over harvest because...
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we made a law that extended and regulated fishing from 12 to 200 miles offshore (Magnuson Act)
[So, "commons"only exists beyond 200 miles.] |
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Fish farming, which is producing a lot of our commercial seafood), is called ...
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aquaculture
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Trawlers (which drag a net across the ocean floor) must have T__ E__ D__ to allow turtles (air breathers) & possibley dolphin to escape.
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Turtle Exclusion Devices
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A major land-building tree in coastal regions that is being cleared for aquaculture is....
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mangrove
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____ of coral reefs is occurring because of high water temperature.
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Bleaching
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The richly diverse ocean ecosystem that's comparable to the land's tropical rain forest are the...
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Coral Reefs
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