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AMI Day 17

Welch – Science

AMI Day 17 (students that receive modifications should not answer question 5)

INSTRUCTIONS:  Read the passage and examine the graph.  Answer questions 1-5 on notebook paper and have them ready to turn in on the first day classes at Alpena School District resume.

Biodiversity of Ozarks Region Caves

The Ozarks Region is a “biologically rich ecological resource.” The eastern upland oak hardwood and southern pine forests converge here with the drier western bluestem prairie of the Great Plains, creating a distinctive array of open grassy woodlands and savannas. This rich mixture of unique, diverse and ecologically complex natural communities (some 65 in all) provides a home for 750 species of native vertebrate animals and 2,000 plant species. The number of species that are endemic, or restricted solely to the Ozarks eco-region (200 species), rivals those found in the tropics or glacial eco-regions.

Of the 200 species are largely restricted to the Ozarks, 160 species occur nowhere else in the world.  100 fish species live in Ozarks streams, including 56 species and subspecies that are restricted to, or have very limited distribution outside of the Ozarks.  Overall, the Ozarks provide habitat for nearly two-thirds of the threatened and endangered species in Missouri, Arkansas, Oklahoma, and Illinois.


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1. What percentage of the Ozarks fish species occur virtually nowhere else in the world?

  1. 56%
  2. 80%
  3. 66%
  4. 28%

2. Of the salamanders (sal.) in the chart, how many have increasing populations?

  1. Two
  2. Five
  3. Four
  4. None

3. At the conclusion of the study a number of organisms that are possibly extinct were identified.  Which of the following is the most likely to actually be extinct?

  1. Ozark salamander because the study did not find one in 1980.
  2. Indiana bat because none were found in 2001.
  3. Gray bat because none were found in 1980 or 2001.
  4. Dwarf American toad because none were found in 1980.

4.  Which of the following is the best reason for the decrease identified in the population of the Big Brown Bat?

  1. The absence of the Gray Bat that is a mutualistic partner for the Big Brown Bat.
  2. The increase in the Cave Salamander population that is a prey item for the Big Brown Bat.
  3. The increase in the Easter Pipistrelle Bat competing for resources with the Big Brown Bat.
  4. The increase in the Pickerel Frog that also eats insects like the Big Brown Bat.

5. Ozarks Region biodiversity is very unique.  Plant and animal species live in the region.  Create a graph that accurately depicts the percentage of plant and animal species found in the Ozarks Region.