Parasites Affecting Frog Population
The number of healthy frogs in brotherhood America is rapidly decreasing due to a sensitive parasite that results in the deformation of the frog population. University of Wisconsin graduate Pieter Johnson is analyze the possible threat the parasite poses. Due to the increasing aim of production, man-made ponds be starting to outnumber natural wetlands and are forcing frogs to adapt to these inferior habitats. Ironically, its lakes like these that the move known as Ribeiroia flourish. However; these parasites are nonhing new says Johnson, and have likely been around for thousands of years infecting small numbers of amphibians. Johnson has discovered this in his most recent research by testing samples from the prehistoric and present. These tests have shown that the parasite still lives and attacks amphibians. Though other researchers notify that there may be more than one perpetrator guilty of the frog deformation such as, pesticides, retinoids, and UV rays. insofar even more than the host frog, the worm is dependant on a snail in which it reproduces asexually, without it the worm is deceased.
When the larvae roam out the snail shell they seek a host and appropriate themselves to the rear of the creature, burrowing in a cyst that affects the growth of frogs legs. The mo results in missing or extra limbs, which hinders the frogs movement and cogency to escape predators.
He also hypothesizes that the worms infectious manner may be the work of natural selection.
In addition, the life cycle of the worm continues through the feces of other organisms launching the procedure again. Although, thats not Johnsons interest. It is the worms connection to the snail that has him so intrigued. Without the snails the worm cannot survive and these snails expect to live in ponds with lots of...
its rather short for an essay.overall,its kind of informative, perhaps you can include examples,i mean the current enviromental issues or maybe some enviromental problems that are faced by some countries.its a nice effort for a beginner.keep it up.
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