Pesticide Essay -- Environment, Contamination

It is known that amphibian populations argon declining at alarming evaluate worldwide. Their population decline has been coupled to various factors such as UV radiation, emerging diseases and pesticide exposure. Pesticide exposure however, is of particular importance due to their high emf for toxicity and widespread environmental contamination. They are commonly introduced into local piss systems through runoff from agricultural fields. According to the National Water forest Inventory, agricultural runoff is the leading cause of water pollution in rivers and lakes in the United States. Because many species of amphibians fill habitats that coincide with agricultural areas, thither is a heightened probability for contamination of their habitat through runoff. While pesticides cast up agricultural profits, they also lead to high amphibian mortality and should restrain improved regulations. All amphibians have high skin permeability, which is a tombstone factor in connecting pe sticides to their decline. This physiological feature can be linked to the ways in which gas exchanges occur within their circulatory system. atomic number 8 molecules first diffuse onto the moist surface of the integument. The oxygen molecules are then picked up by red blood cells within capillaries, which run stuffy to the skins surface. The oxygen-saturated blood is then circulated throughout the body before being expelled alike to how it was absorbed. Because of this high skin permeability, it is also much easier for toxins, such as pesticides, to reckon and accumulate within the amphibians body (Association of Zoos and Aquariums). formerly pesticides have been integrated into the amphibian, they may lead to malformation, decreased fitness even demolition depending on the kind... ...sticides, it is not, to require better regulations and enforcement. It however does not go without look that pesticides do generate better agricultural products for our consumption and power the economy. But, populations of amphibians cross to dwindle and nothing has changed in the EPAs regulation of pesticides, including those mentioned. The world is quickly loosing abundant amounts of biodiversity in the name of secular bureaucratic processes. The perspective of ecologists and biologists continue to be ignored even in the wake of possible extinctions. If new rules are not put into effect and done so soon, there exit undoubtedly be great consequences not seen since the days of the passenger pigeon. Once the world looses a species, no form of legislation can require them back, which is why passing new regulations now is imperative for the present and future.