Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 27, Problem 2AC
Summary Introduction
To determine: The two species that have been listed as endangered: one that has recovered to the extent that it has been “delisted” and one that has remained on the list for more than 20 years.
Introduction: Endangered species are those species whose numbers are getting low. To prevent the extinction of those species, the Endangered Species Act was formed.
Summary Introduction
To determine: The characteristics of two species and their ecosystem have significantly contributed to their differing fates.
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Students have asked these similar questions
The Canary Islands are a volcanic island chain off the western coast of Africa
with a larger percentage of specialist species than generalist species. If an
invasive species is introduced to one of the Canary Islands, which of the
following represents an immediate impact? (NOTE: a specialist species has a
narrow ecological tolerance, while a generalist has a wide ecological tolerance)
The populations of the invasive species on the Canary Islands will decrease as
predation increases.
The population of the invasive species on the Canary Islands will decrease because
they were outcompeted by native specialist species.
The populations of both the invasive species and the specialist species on the Canary
Islands will remain the same as a result of resource partitioning.
The populations of the specialist species on the Canary Islands will decrease as
competition for resources increases.
Which of the following is not a part of the red list criteria for "critically endangered" species?
The population is expected to decline by 25% or more within 3 years or 1 generation.
The species has a restricted range <100km2 at a single location and there is observed or predictive habitat loss, fragmentation, ecological imbalance or heavy commercial pollution.
Extinction probably is greater than 50% within 10 years or 3 generations.
The total population size is less than 200 mature individuals.
Which one of these statements about COSEWIC is false?
COSEWIC's assessments take into account political, social and economic factors.
The Species at Risk Act (2002) established COSEWIC as an advisory body.
The committee made its first designation in April 1978 and has met annually since then.
Members of COSEWIC are wildlife biology experts from academia, government, non-governmental organizations and the private sector responsible for designating wildlife species in danger of disappearing from Canada.
Chapter 27 Solutions
Biology
Ch. 27.1 - Prob. 1CSCCh. 27.1 - Prob. 1HYEWCh. 27.1 - The Return of the Elephant Seals Female elephant...Ch. 27.1 - Prob. 1CYLCh. 27.1 - describe how the growth rate interacts with...Ch. 27.1 - Prob. 3CYLCh. 27.2 - What factors might make these population data...Ch. 27.2 - Prob. 2TCCh. 27.2 - What benefits does mass emigration give to animals...Ch. 27.2 - Prob. 1CSC
Ch. 27.2 - Prob. 1CYLCh. 27.2 - Prob. 2CYLCh. 27.2 - Prob. 3CYLCh. 27.3 - Prob. 1CYLCh. 27.3 - Prob. 2CYLCh. 27.3 - Prob. 3CYLCh. 27.4 - Prob. 1CYLCh. 27.4 - Prob. 1CTCh. 27.5 - Prob. 1TCCh. 27.5 - Prob. 2TCCh. 27.5 - Prob. 3TCCh. 27.5 - describe the advances that have allowed...Ch. 27.5 - explain why rapid population growth continues...Ch. 27.5 - Prob. 3CYLCh. 27.5 - Prob. 4CYLCh. 27 - Prob. 1MCCh. 27 - Prob. 2MCCh. 27 - Prob. 3MCCh. 27 - Prob. 4MCCh. 27 - Prob. 5MCCh. 27 - Prob. 1FIBCh. 27 - The type of growth that occurs in a population...Ch. 27 - Prob. 3FIBCh. 27 - The type of spatial distribution likely to occur...Ch. 27 - Prob. 5FIBCh. 27 - Prob. 1RQCh. 27 - Prob. 2RQCh. 27 - Draw, name, and describe the properties of a...Ch. 27 - Prob. 4RQCh. 27 - What is logistic population growth? What is K?Ch. 27 - Prob. 6RQCh. 27 - Distinguish between populations showing concave...Ch. 27 - Prob. 8RQCh. 27 - Prob. 9RQCh. 27 - Prob. 1ACCh. 27 - Prob. 2AC
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