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Cause/s or effect/s Observation Logical explanation (specify) Example High density of a. Low number of sea a. Low predation rate sea urchin population otter (cause) b. High nutrients (cause) b. Turbid water decreases visibility of prey c. Low density of kelp (effect) c. High grazing rate of sea urchin Low density of sea urchin population 1. а. a. High predation rate b. High density of kelps (effect) b. C. c. Delayed effect due to dwindling food for otter a. More sea urchin а. (cause) b. b. Turbid water inhibits photosynthesis, affects visibility of predators c. Low nutrients (cause) c. Low nutrition, clear water 2.

Cause/s or effect/s Observation Logical explanation (specify) Example High density of a. Low number of sea a. Low predation rate sea urchin population otter (cause) b. High nutrients (cause) b. Turbid water decreases visibility of prey c. Low density of kelp (effect) c. High grazing rate of sea urchin Low density of sea urchin population 1. а. a. High predation rate b. High density of kelps (effect) b. C. c. Delayed effect due to dwindling food for otter a. More sea urchin а. (cause) b. b. Turbid water inhibits photosynthesis, affects visibility of predators c. Low nutrients (cause) c. Low nutrition, clear water 2.

Biology Today and Tomorrow without Physiology (MindTap Course List)
Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Christine Evers, Lisa Starr
Chapter17: Communities And Ecosystems
Section: Chapter Questions
Problem 9SQ
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As you analyze it, fill out the missing information in the table. The first row in the table served as an example for you to follow. Note the location of the sea urchin in the model as the reference point for the observation. This will help you identify the cause or effect and logical explanation in the succeeding columns.

Cause/s or effect/s Observation Logical explanation (specify) a. Low number of sea otter (cause) Example High density of a. Low predation rate sea urchin population b. High nutrients (cause) b. Turbid water decreases visibility of prey c. Low density of kelp (effect) c. High grazing rate of sea urchin Low density of sea urchin population 1. а. a. High predation rate b. High density of kelps (effect) b. C. c. Delayed effect due to dwindling food for otter 2. a. More sea urchin а. (cause) b. b. Turbid water inhibits photosynthesis, affects visibility of predators c. Low nutrients (cause) c. Low nutrition, clear water a. Less grazers 3. High density of giant kelp population а. b. High otter population (cause, secondary) b. C. c. Provided nutrition for kelp a. High density of sea urchin (cause) 4. High density of sea otter population а. b. b. Over predation c. Moderate to low nutrient (cause) a. Low population of sea urchin (cause) С. 5. а. b. High density of sea b. urchin population (effect) c. High nutrient (cause) C.
Transcribed Image Text:Cause/s or effect/s Observation Logical explanation (specify) a. Low number of sea otter (cause) Example High density of a. Low predation rate sea urchin population b. High nutrients (cause) b. Turbid water decreases visibility of prey c. Low density of kelp (effect) c. High grazing rate of sea urchin Low density of sea urchin population 1. а. a. High predation rate b. High density of kelps (effect) b. C. c. Delayed effect due to dwindling food for otter 2. a. More sea urchin а. (cause) b. b. Turbid water inhibits photosynthesis, affects visibility of predators c. Low nutrients (cause) c. Low nutrition, clear water a. Less grazers 3. High density of giant kelp population а. b. High otter population (cause, secondary) b. C. c. Provided nutrition for kelp a. High density of sea urchin (cause) 4. High density of sea otter population а. b. b. Over predation c. Moderate to low nutrient (cause) a. Low population of sea urchin (cause) С. 5. а. b. High density of sea b. urchin population (effect) c. High nutrient (cause) C.
sea otter (predator) Low High sea urchin giant kelp (prey, grazer) (producer) High Low V Water Nutrients The Ecosystem Architecture and the Circle of Life.
Transcribed Image Text:sea otter (predator) Low High sea urchin giant kelp (prey, grazer) (producer) High Low V Water Nutrients The Ecosystem Architecture and the Circle of Life.
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