BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 44, Problem 5CT
Summary Introduction
To explain:
The speed of water flow caused by the dam removal determines which species can live in a river.
Introduction:
Ecosystem is defined as the interaction between the living organisms and their environment. When the dam wall is built in the river, it prevents fish migrations. Some species are completely separated from spawning habitats and rearing habitats. Sediments are trapped by the dam, which is critical for sustaining habitats in the downstream. If the dam is removed, the removal causes large and rapid changes in biodiversity.
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- PREDICT What would happen to the organisms in a river with a fast current if a dam were built? Would there be any differences in habitat if the dam were upstream or downstream of the organisms in question? Explain your answers.arrow_forwardExplain how nutrient-rich runoff can cause waters to become hypoxic.arrow_forwardExplain how increasing human population affects the water quality of lakes and reservoirarrow_forward
- To reduce the risk of flooding, it is important to constructing dams and levees remove coastal wetlands protect vegetation encourage irrigation encourage developmentarrow_forwardPeople often propose new dams to deal with increasing concerns about severe drought, but a problem with this approach is that dams are ineffective in storing water dams discourage water conservation efforts animals can't live upstream of dams, where the water flow changes terrestrial animals generally find dam water too salty for their use dams restrict water flow, damage habitats, and can cause degradation of natural areasarrow_forwardWhat do you think are the multiple problems that aquatic environments are exposed to? What are the causes if these problems and where do they come from? List down at least three, which you think are major problems faced on aquatic environments. Explain briefly why you think these are major problems.arrow_forward
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