Chapter 5 Review - Chapter 5 Review Black Rhinos reasons of...

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Chapter 5 Review Black Rhino’s reasons of extinction: Loss of habitat and poaching. Review Questions Exs 1-4 and 6-9 Critical Thinking Exs 2 and 5 1. Extinction a. Types of extinctions: i. Local extinction: when a species is no longer found in an area, once inhabited, but is still found elsewhere in the world. ii. Ecological: when so few members of a species are left that it can no longer lay a its ecological roles in the biological communities it is found. iii. Biological: species is no longer found anywhere. b. Passenger Pigeon: because of a combination of uncontrolled commercial hunting, habitat loss as forests were cleared to make room for farm and cities. 2. Extinction Rate: a. Extinction rate: percentage or number of species that go extinct within a certain time such as a year. b. Species going extinct each year: 0.01% a year. c. Conservative Rates: i. Both the rate of species lost and the extent of biodiversity lost are likely to increase during the next 50-100 years. ii. Extinction rates are much higher than the global
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Chapter 5 Review - Chapter 5 Review Black Rhinos reasons of...

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