The Silence of the Limpkins by Susan Cerulean is about the overall degradation of Wakulla Springs. This story begins with the narrator describing how his colleagues and he have to put herbicide in Wakulla Springs every so often. As to clear the hydrilla, a plant imported from India because of a trade that overall massively impacted the Wakulla Springs ecosystem. “Hydrilla was imported to the United States from India for the indoor aquarium trade in the 1950’s. No one knew it would become a major invader of Florida’s lakes and rivers” (Susan Cerulean).
The cane toads should be eradicated because of its negative impacts towards the ecosystem and the food web. One factor that cane toads should be eradicated is because of their negative impacts toward the ecosystem. The cane toad’s whole life-cycle is poisonous, which means that they negatively impact diversity of wildlife (Exotic Animals 4). “As a result of the cane toad invasion, evidence suggests that Northern Quolls, goannas, frogs, snakes, fish, Freshwater Crocodiles and egrets are particularly affected by the invasion”(Exotic Animals 4). Because of this
Bio 100 Homework due 11/05/12 Name : Nicholas Oliveira Go to the website on cheetah conservation www.Cheetah.org and read the following sections under the tabs About Cheetahs: Intro, Genetic Diversity, & Race for Survival 1. Why are cheetahs endangered? Our attitudes and misconceptions about these species have led to their endangerment because many people deal with their fear by eliminating predators. 2. What are the 5 most common causes of extinction?
11-25-2012 The Invasiveness and in Depth Information of Reptiles in the United States of America Andy Abstract Reptiles originated around 320-310 million years ago during the Carboniferous period, having evolved from advanced reptile-like amphibians that became increasingly adapted to life on dry land. Invasive species are a large problem in the United States. Biological invasions can result in numerous harmful impacts on the environment and species. Nile monitor lizards (Varanus niloticus), Burmese Pythons (Python Molurus Bivittatus) and Brown Tree Snakes (Boiga Irregularis), have become established southern Florida. All of these animals are very large, with abilities to adapt to a new location and reproduce at an alarming rate, these
A spill in any of the deep sea areas would reduce the biodiversity of that area through reductions of bird populations, fish-stocks and populations of marine mammals. All of which are already under severe threat of over fishing and habitat disturbance without this imposed threat. Furthermore the contamination of coastal and coral ecosystems will all lead to to damage on the livelihoods of fishermen and people involved the local tourism. The 2010 Deepwater Horizon oil spill in the Gulf of Mexico has been described as the worst environmental disaster in the United States, releasing about 4.9 million barrels of crude oil making it the largest accidental marine oil spill. Most of the impact of this was experienced by the marine species.
171 affected cases, 1 dead were reported in Mexico. It was inevitable with this instance that Cholera would spread beyond the Caribbean. It is been said that 715,000 people were sickened of Cholera including peacekeeping troops sent from Nepal by the UN due to poor sanitary facilities in Haiti and Dominican Republic. 9000 people were reported dead. Mexico is not considering the WHO approved vaccine for Cholera outbreak.
There are about 10,000 animals on the endangered species list. That is a big number that needs to be brought down in order to maintain biodiversity. However, that number is slowly shrinking thanks to the endangered species act passed in 1973. This act authorizes the listing of species as endangered and threatened, prohibits unauthorized taking, possession, sale, and transport of endangered species, provides authority to acquire land for the conservation of listed species, and authorizes the assessment of civil and criminal penalties for violating the act. One of these endangered animals is the Florida Panther.
Federally Threatened (Similarity/Appearance) The American Alligator was listed as endangered in 1967 and removed in 1987. The current population is estimated to be 5 million across Southeastern United States, and roughly 1.25 million in Florida. The American Alligator is threatened by habitat loss and encounters with people. They are hunted for their skin and meat. Before hunting was controlled in 1970, an estimated 10 million American Alligators were killed for their skin.
Purpose The purpose of this lab is to determine how an invasive species, in this case, the zebra and quagga mussel can have an affect on other species in the same habitat and how this can affect the ecosystem. Introduction A population explosion is caused when there is minimal environmental resistance. Minimal resistance can be caused by a decline in predator population, or by introducing an evasive species. Invasive species can experience a population explosion because they are not controlled right away by the normal environmental restraints of the ecosystem. Zebra and quagga mussels were introduced into the Great Lakes and caused hardship on the ecosystem and in turn partly caused pollution causing effects (My Unique Student Experience,
The inhabitants cut down the trees to build canoes and spiritual statues at a sustainable rate but, with the rat population at twenty million on a sixteen mile long island, the trees could not reproduce effectively. In turn, the tree loss prevented the construction of canoes for fishing so the natives hunted down the entire land bird population and begun the struggle for survival. The introduction of an invasive species, alone, caused the indigenous of Easter Island to face starvation. Today it isn’t just an island of people that face extinction; it is the entire world population that’s nearing its downfall and, we are struggling with a myriad of factors contributing to environmental degradation. The poison from the dart frog of the Peruvian rainforest contains a chemical that is the basis for a compound that is vital for the process of transplanting human organs.