I. True/False. Indicate Whether Each of the Following Is True (T) Or False (F)

Name:______

CSS 573 LESSON 1 QUIZ

I. True/False. Indicate whether each of the following is true (T) or false (F).

1)______Base flow is the level of flow of a stream when it is composed entirely of groundwater from springs.

2)______Riparian vegetation is hydrophytic vegetation close enough to a lake or river that its annual evapotranspiration represents a factor in the lake or river regime.

3)______Biotic refers to the assemblage of organisms inhabiting the bottoms of streams, lakes, and ocean.

4)______The ability of water to resist change in its chemical property when receiving a toxicant is termed its buffering capacity.

5)______Succession in aquatic ecology refers to the sequential changes in vegetation, invertebrates, and fish downstream through the course of stream.

6)______Silt is material of fine particles between sand and clay in size, while sediment is inorganic particles deposited on the streambed that can range in size from clay to boulders.

7)______A recharge area is where precipitation filters into the ground.

8)______Hydrologic cycle refers to cyclic changes in weather patterns in a geographical area over time.

9)______The functional position of an organism in a community is its life history.

10)______An ecoregion is a geographic area that has broad similarities with respect to soil, relief, and dominant vegetation.

11)______Rivers and streams are classified by order, such as the smallest unbranched tributary in a watershed is designated order 1; and the higher the order number, the larger the watershed, and the greater the channel dimensions and discharge.

12)______Denitrifying bacteria are organisms responsible for creating atmospheric nitrogen from nitrates in streams.

13)______The concept of habitat refers to the sum total of environmental conditions of a specific place occupied by a plant or animal, or a population of them.

14)______Groundwater is water that runs across the land’s surface.

15)______Biodiversity refers to the property of a community of organisms that varies in the number of species, their relative abundance, and life histories.

II. Multiple Choice. Circle the letter of the correct response.

16) The river continuum concept includes the following:

1. A continuous gradient of physical conditions exists from headwaters to mouths of rivers.
2. Structural and functional characteristics of biological communities are adapted to conform to the mean state of physical system.
3. Producer and consumer communities establish themselves in harmony.
4. All of the above.
5. None of the above.

17) A term descriptive of fish that spawn in a stream and migrate to the ocean for major growth.

1. Eutrophic
2. Detritus
3. Anadromous
4. Catadromous
5. None of the above

18) The characteristics defining wetlands include:

1. Lands that are transitional between terrestrial and aquatic systems.
2. The water table is usually at or near the surface, or the land is covered by shallow water.
3. Features that are permanently wet, or intermittently water covered.
4. All of the above.
5. None of the above

19) The series of major events involving precipitation, run-off to the ocean, and evaporation is known as:

1. Rhithron
2. Serial discontinuity
3. Hydrologic cycle
4. The river continuum
5. None of the above

20) The total area drained by a stream or river is called a:

1. Landscape
2. Catchment
3. Hydrologic cycle
4. Riparian zone
5. None of the above.

21) The wide, lower course of a river where its current is met and influenced by the tides is called a:

1. Ecotone
2. Trophic zone
3. Ecosystem
4. Estuary
5. None of the above.

22) The concept of a flood pulse includes:

1. Exchange between the floodplain and river channel has a greater effect on biota than nutrient spiraling in the river channel.
2. It is a major force controlling biota in river systems.
3. Most animal biomass comes from production in the floodplain, not transport of organic matter downstream.
4. All of the above.
5. None of the above

23) The transition zone between different biological communities is termed a:

1. Ecotone
2. Fluvial
3. Food web
4. Home range
5. None of the above.

III. Short Answer. Match the following with the correct term or concept. (See list below for choices.)

24)______The relative degree of abundance of species of plants and animals, functions, communities, habitats, or habitat features per unit of area.

25)______Starting and stopping at intervals of time, as with a stream.

26)______Maximum level that the biomass of an animal population can reach in accordance with the quality of its environment.

27)______Spring or well arising from pressure in deep aquifer.

28)______A group of one or more populations of plants and/or animals using a common area; an ecological term used in a broad sense to include groups of plants and animals of various sizes and degrees of integration.

29)______Of or pertaining to material deposited by a stream or flowing water.

30)______A band of vegetation that is left along the margins of a stream or a river to reduce the impacts of human activities on that stream or river.

31)______A stagnant swamp, marsh, bog, or pond, especially as part of a backwater, inlet, or bayou.

32)______Water loss from a plant or tree due to transpiration as well as evaporation.

33)______Maintenance of the structure and functional attributes of a locale, which includes normal variability.

Artesian

Anadromous

Alluvial

Buffer strip

Carrying capacity

Catchment

Channelization

Climatic cycle

Community

Confined aquifer

Delta

Detritus

Diversity

Ecological niche

Ecological integrity

Ecosystem

Ecotone

Eutrophication

Evapotranspiration

Food web

Gallery forest

Geomorphology

Groundwater

Habitat

Home range

Hydraulic complexity

Integrity

Intermittent flow

Lentic

Life history

Lotic

Plankton

Redd

Rhithron

Riparian vegetation

Slash

Slough

Stream order

Suspended sediments

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