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Questions: 1. What impact did the wolves have on the deer population when they were brought to the island? 2. What other impact could the wolves have had on the island?

Questions: 1. What impact did the wolves have on the deer population when they were brought to the island? 2. What other impact could the wolves have had on the island?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Graph 1: (The green shows the deer population and the blue lone shows the wolf population) Graph: Deer vs, Wolf Deer and Wolf Population Size 2500 2400 30 28 2300 26 2200 2100 18 2000 L14 12 1900 10 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 Questions: 1. What impact did the wolves have on the deer population when they were brought to the island? 2. What other impact could the wolves have had on the island? Number of Wolves Number of Deer
Transcribed Image Text:Graph 1: (The green shows the deer population and the blue lone shows the wolf population) Graph: Deer vs, Wolf Deer and Wolf Population Size 2500 2400 30 28 2300 26 2200 2100 18 2000 L14 12 1900 10 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 Questions: 1. What impact did the wolves have on the deer population when they were brought to the island? 2. What other impact could the wolves have had on the island? Number of Wolves Number of Deer
Deer Population Change Lab- DL Question: What effect does the wolf population have on the deer population? Introduction: In 1970 the deer population of an island forest reserve about 518 square kilometers in size was about 2000 animals. Although the island had excellent vegetation for feeding, the food supply obviously had limits. Thus the forest management personnel feared that overgrazing might lead to mass starvation. Since the area was too remote for hunters, the wildlife service decided to bring in natural predators to control the deer population. It was hoped that natural predation would keep the deer population from becoming too large and also increase the deer quality (or health), as predators often eliminate the weaker members of the herd. In 1971, ten wolves were flown into the island. The results of this program are shown in the following table. The Population Change is the number of deer born minus the number of deer that died during that year. Table 1: Wolf Population Deer Population Change Deer Population 2,000 2,300 2,500 Year Deer Offspring Predation Starvation 1971 10 800 400 100 +300 1972 12 920 480 240 +200 1973 16 1,000 640 500 -140 2,360 2,224 2,094 1974 22 944 880 180 -116 1975 28 996 1,120 26 -150 1976 24 836 960 2 -126 1,968 1,916 1977 21 788 840 -52 1978 18 766 720 10 +46 19 1,952 1,972 1979 780 760 +20 1980 19 790 760 +30
Transcribed Image Text:Deer Population Change Lab- DL Question: What effect does the wolf population have on the deer population? Introduction: In 1970 the deer population of an island forest reserve about 518 square kilometers in size was about 2000 animals. Although the island had excellent vegetation for feeding, the food supply obviously had limits. Thus the forest management personnel feared that overgrazing might lead to mass starvation. Since the area was too remote for hunters, the wildlife service decided to bring in natural predators to control the deer population. It was hoped that natural predation would keep the deer population from becoming too large and also increase the deer quality (or health), as predators often eliminate the weaker members of the herd. In 1971, ten wolves were flown into the island. The results of this program are shown in the following table. The Population Change is the number of deer born minus the number of deer that died during that year. Table 1: Wolf Population Deer Population Change Deer Population 2,000 2,300 2,500 Year Deer Offspring Predation Starvation 1971 10 800 400 100 +300 1972 12 920 480 240 +200 1973 16 1,000 640 500 -140 2,360 2,224 2,094 1974 22 944 880 180 -116 1975 28 996 1,120 26 -150 1976 24 836 960 2 -126 1,968 1,916 1977 21 788 840 -52 1978 18 766 720 10 +46 19 1,952 1,972 1979 780 760 +20 1980 19 790 760 +30
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