Lec 6

Question 1

Environmental stressor

Answer 1

Factors that constrain productivity, reproductive success, and ecological development

Question 2

Disturbance

Answer 2

Episodic but intense influence that causes sever damage

Question 3

Pollution

Answer 3

Exposure to chemicals or energy at an intensity that exceeds the tolerance of organisms

Question 4

Contamination

Answer 4

Potentially damaging stressors are present in the environment, but the intensity is too low to cause damage

Question 5

Two types of pollution

Answer 5

Natural

Anthropogenic- human created

Question 6

Different types of pollution

Answer 6

Chemical pollution

Thermal pollution

Biological pollution

Noise pollution

Light pollution

Aesthetic pollution

Question 7

Chemical pollution

Answer 7

When a substance is in a amount that causes negative physiological responses in other organisms

Question 8

Examples of chemical pollution

Answer 8

Smog

Combustion

Question 9

Thermal pollution

Answer 9

Heat release that causes ecological stress, due to variation of species tolerance

Question 10

Example of thermal pollution

Answer 10

Nuclear plant pollution

Question 11

Biological pollution

Answer 11

When humans release organisms beyond their natural range

Non-native species

Pathogens

Question 12

Noise pollution

Answer 12

When the level of ambient sound becomes distracting to the normal activities of humans or are detrimental to wildlife

Question 13

Light pollution

Answer 13

When artificial light levels are detrimental to wildlife

Often occurs when excess light is bright enough to obscure stars in the night sky

Question 14

Aesthetic pollution

Answer 14

Visual images that are displeasing to most

Culture-based

Only impacts humans, but we are a part of the environment

Question 15

Noise pollution example

Answer 15

Mammals are less sensitive than birds

Reptiles are less sensitive than birds

Amphibians have the largest sensitivity range