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environmental science unit 7

Terms in this set (17)

What are possible effects of the use of small personal watercraft on a marine environment?
loss of habitat due to destruction of coral
reduced ability of a species to maintain its population
amage or death to marine organisms
Over the course of a summer, two boys used a small boat almost daily to go diving in shallow waters away from a beach shoreline. Each time, they stopped in the same spot, dropping anchor in the coral reefs below the boat. By the end of the summer, they noticed a decrease in the amount of fish they saw during their dives.
The boat and anchor might have destroyed or damaged the coral reefs, which is the habitat of some fish.
What is an effect of habitat restoration on the environment?
species may return to locations that were once damaged.
What are ways that humans affect the environment while doing recreational activities?
Humans leave trash that animals may try to eat.
Humans going off the trail can cause damage to the environment.
Which explains the need to rehabilitate nature trails?
increased sediments
nature trails being overused
Why is it important for nature trails used by ATVs to be rehabilitated?
.5 of 2
Vegetation can be lost due to erosion if nature trails are not rehabilitated. (correct)
XXX Runoff is increased making it easier for water to escape the trail. (incorrect)
checkpoint
...
What activities done near an ocean beach are likely to negatively affect aquatic life?
boating and using Jet Skis
What are risks posed to a marine ecosystem when use of personal watercraft causes the loss of a keystone species such as the terrapin?
.67 of 1
The biodiversity of the ecosystem would change and eventually decrease.
Organisms that feed on the keystone species may also become lost to the ecosystem.
What explains why small boats might adversely affect the population of manatees?
Manatees and small boats are both likely to be in shallow water, which increases risk of collision.
Manatees have a low reproduction rate, so any damage from small boats can have a huge effect on their numbers.
Why would the use of personal watercraft adversely affect wildlife?
Its speed in shared spaces can lead to a collision.
What are ways to reduce the impact of recreational boats on wildlife?
setting low speed limits in shared spaces
mandating that boats use propeller guards
having "no-wake" and other protected zones
Which phrases explain the need for nature trail rehabilitation?
I just selected all of them and got .5 out of 1
Which phrases explain the need for nature trail rehabilitation?
to reduce the production of sediments
What effect do species preservation efforts have upon the environment?
They protect and improve the genetic diversity of the species.
What is the effect of ATV use on national forests?
increased runoff
increased access to remote locations
What is the effect of habitat restoration?
reduction in habitat loss
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