Graphing Birds of Prey Make a Comeback

Part 4

 

 

Part 4

 

Since the use of DDT was banned in the United States in 1972, the populations of the birds of prey (eagles, osprey, and others) most seriously affected have made a significant comeback. For example, each state tracked the number of pairs of nesting bald eagles from 1990 to 2006. To see the results of this research, go to the U.S. Fish and Wildlife Service website.  

Find the data for the state in which you were born. Draw a line graph by hand or using Excel or another program. Add your graph to your blog site. Be sure to label with the name of the state. (3 points)

 

 

 

Describe--

 

1.       The overall trend of bald eagle populations in your state during this time period. (.5 point)

 

According to the data, the population in my state did steadily increase over the years.

 

2.       The average increase in population for your state. What percentage increase does this represent? (.5 point)

 

The average increase in population is 29.8 which is a 6% increase.

 

3.       Two programs that protect bald eagles (.5 point)

 

The Migratory Bird Treaty Act is a Federal law that carries out the United States’ commitment to four international conventions with Canada, Japan, Mexico and Russia. Those conventions protect birds that migrate across international borders. The take of all migratory birds, including bald eagles, is governed by the Migratory Birds Treats Act’s regulations. Another program is the Bald and Golden Eagle Protection act. Even though they both have been delisted under the Endangered Species Act, the law will still protect them. This law, originally passed in 1940, provides for protection of the bald eagle and the golden eagle by prohibiting the take, possession, sale, purchase, barter, offer to sell, purchase or barter, transport, export or import, of any bald or golden eagle, alive or dead, including any part, nest, or egg, unless allowed by permit (16 U.S.C. 668 (a); 50 CFR 22).