AP Environmental Science


Cane Toads
January 2, 2007, 10:37 pm
Filed under: Animals, World

When I saw the heading of this article, I remember the movie that we watched right before Christmas Break. Right now there are about 200 million cane toads in Australia that have spread 1900 miles from northeast Queenslands to Darwin. Darwin is located in Australia’s tropical north. The cane toads were brought to Australia in 1935 in an attempt to control the cane beetle population.

The cane toads, whose skin is poisonous, have been killed by everything from golf clubs to air rifles. They are currently being caught in traps and plastic bags.

Bufo marinus.JPG picture from: http://en.wikipedia.org

Some peopl want the toads to be completely eliminated while some are not ready for them to leave. One lawmaker wanted a national attack on hte toads to be called for. However, this idea was withdrawn because of criticism by animal rights groups.

I don’t know what should be done about the cane toad issue in Australia. I guess that the government will have to take a closer look at what can be done to solve the issue. I am not sure whether the cane toads have done their job, but I do know that they have also decreased other populations. The people in Australia need to come to an agreement on what should be done that will satisfy all aspects.

Australia’s Military Asked to Battle Cane Toads  http://www.sciam.com/article.cfm?chanID=sa012&articleID=FA93AC46951909A7575D591BC4D85CE6



Poaching Snow Leopards
January 2, 2007, 8:41 pm
Filed under: Animals, World

Snow leopards are on the list of the most endangered big cats. There are only 3000 to 6000 snow leopards that are still in the wild. This is becasue poachers make thousands of dollars off of their coats. They are sold in the blackmarker in numerous places, particularily in China.

The snow leopards movements can be tracked by their communication method with other snow leopards. They leave marks on certain lenadscapes. Some of the marks they leave inlclude: shallow holes that they dig and scent marks they leave behind.

Lightmatter snowleopard.jpg  Snow leopard  (photo credit: http://en.wikipedia.org)

Becuase of these marks, researchers are better able to keep track of the snow leopard population. They are then better able to determine whether and where snow leopards are bing illegally hunted.

One organization aimed to deture people from poaching snow leopards “works with local herding families to make woll handicrafts sold in Mongolia and in the United States to relieve the economic pressure to poach.”

I think that it sad that people have to resort to killing innocent animals to make money. I do, however, understand that some of the poachers might not be able to take care of themselves and their families without killing the snow leopards. I think that the organization that helps families to make wool handicrafts is a really good idea. It gives them money and doesn’t force them to become poachers.

Protecting the Snow Leopard from Poachers by: Elizabeth Arnold                                     http://www.npr.org/templates/story.story.php?storyId=66267700



Is Louisiana Sinking?
January 2, 2007, 8:15 pm
Filed under: Uncategorized

According to Study Shows Louisiana Slowly Slipping into Gulf, Louisiana is “sliding” into the Gulf. It is not “sinking.” Why is this such a big issue? Well it will eventually effect the people who live in the area, but for the time being it could disturb the plans for building bigger and better levees.

Louisiana regions map.svg

Map of Louisiana (Photo credit: www.en.wikipedia.org)

The area of Louisiana that is being affected is approximately 250 miles long and 180 miles wide. This area includes the delta of the Mississippi. “The bedrock under heavily populated southeast Louisian is breaking away at a glacial speed — at the pace fingernails grow.” Over the past year, this section of the state has slid about the width of two credit cards. The delta of the Mississippi has been build up over the past 8000 years. Over about the last 70 years, over 2000 square miles of the coast of the United States in that area has disappeared. This is through sinking or erosion.

Probably one of the most important questions about the sinking is why it is happening. There are different theories on why this is occuring. One theory is that extraction of oil and natural gas has caused the sinking. We were drilling in that area in the mid and late 20th century. Another theory is that waterways, specifically the Mississippi River, were “straightjacketed by levees.” This means that the floodwaters were unable to reach the soil to replenish it with nutrients.

I think that this needs to be investigated further. It is a serious issue because now it might just be Louisiana, but what if other parts of the United States start to sink. Two credit card widths does not seem like that much, but if you take into account that Louisiana looses that much land every year it is amazing. I wonder what would happen to all those people that live on that land. I mean look at what happened when they had to leave their homes for a short period of time with Hurricane Katrina. Where would they go if they could never go back to their homes and the lives that they have built for themselves.

STUDY SHOWS LOUISIANA SLOWLY SLIPPING INTO GULF by: Cain Burdeau    http://www.enn.com/today.html?id=11950