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Tuesday, May 10, 2011

How close is the bald eagle to extinction?

It was on the endangered list in the 1960's, but then people actually realized it and did many things to save it. So now, it is off the endangered list and not even close to extinction.

http://ezinearticles.com/?The-Bald-Eagle-Defies-Extinction&id=710560

What do we think could help the ecosystem?

To help the ecosystem, the government could just protect all of the mangroves instead of just part o f it, or what they could do is get about one acre of mangroves that is the least contributive, evacuate it of mangroves, and let whoever wants to cut down mangroves use that.

Bald Eagle food web

SL-FOODWEB.bmp
http://sjacomputerlab.info/Seventhwebpages/SL-FOODWEB.bmp

Have the methods helped the mangroves?

Yes, approximately 280,000 acres of mangrove forests are in the hands of the federal and local government, and non-profit organizations. Although, most of those acres are in the Everglades.

Sunday, May 8, 2011

What role does the bald eagle play in the environment?

The bald eagle does an important job that keeps the food chain intact. It protects overpopulation in ponds and river areas. If bald eagles die out, then the mice, rabbits, fish, and other things that the bald eagle eats will become overpopulated. Then they will eat the producers faster than they can grow, until there won't be any plants left. Once that happens, the mice and rabbits will die out because they have no food. Then anything that eats those will die out because they have no food, until the whole ecosystem is out of whack.

How are people trying to help mangroves?

Now that the mangroves are actually getting seriously depleted, people are trying to help them. One of the ways is encasing the mangrove saplings in PVC tubing to provide protection and support until they can get established. Another way is restoring mangroves not through planting, but through engineered site elevations and the removal of dredge spoils. The Florida Government is also protecting some mangrove areas.

http://www.csc.noaa.gov/coastal/expert/natreview/natreview06.htm

Wednesday, May 4, 2011

Have Bald Eagles been affected by the mangrove depletion?

If the bald eagle lives in a mangrove and the mangrove is getting cut down, then probably yes! The eagle likes to make its nest up high, where it can perch and hunt. So imagine that you lived in a tree house and someone cut your tree down to build a house. Then you move to another tree but they cut that house down to build a table. And you keep moving from tree to tree as they keep on getting cut down. Eventually, there aren't going to be any trees left for you to live in. That's the situation with the bald eagle. And why would you want to ruin the home of such a majestic bird?

http://freeman.cz.cc/blog/2010/02/mangrove-swamps/

bald-eagle-bring-nesting-material-by-aesthetic-photos-05.jpg

http://leesbirdblog.files.wordpress.com/2008/08/bald-eagle-bring-nesting-material-by-aesthetic-photos-05.jpg?w=300&h=200