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Monday, June 4, 2012

Saving Marine Mammals


Earth’s ever changing climate have a great effect on marine life forms in the ocean, changing their natural habitats and driving them to the point of extinction. Of the 129 species of marine mammals an estimate of approximately one-quarter of them are current facing extinction. It is important to protect these animals in order to preserver the biodiversity as well as a functioning ecosystem because most of these mammals include top predators on the food chain, for example dolphins and polar bears. At Stanford University and the National Autonomous University of Mexico, researchers found out that by preserving 4% of the ocean this could play a crucial role in the protection of a vast majority of marine mammal species.
                  The researchers pinpointed areas of the ocean where conservation could protect the maximum number of species that are vulnerable to extinction, and overlaid maps where each marine mammal species is found, these composition of map revealed to them locations with the highest diversity of species. After pinpointing the 20 conservation sites that contains about 84% of all marine animals, the scientist also considered habitats of special importance to the mammal as well as locating breeding grounds and migration routes. It was found that these areas where all coincided with regions that are highly impact by human activity therefore this would make conservation difficult, but the ultimate goal is still protecting 4% of the worlds ocean in order to preserve some of the worlds most magnificent creatures.

Sea Otter: One of the endangered marine mammals

 Bibliography: http://www.sciencedaily.com/releases/2011/08/110829115431.htm:

Bio control Pesticides


Thailand is a tropical country located close to the equator, it is hot all year round and during the rainy season it is very humid. The recent flood not only devastated the lives and homes of countless Thai citizens, but also polluted the streets and rivers with un-sanitized water, this damp and humid environment makes it a perfect spawning ground for mosquitoes. Mosquitoes in Thailand are known for compromising people’s health and spreading several diseases such as malaria. The solution to this could be found in bio pesticides that contain a certain type of fungus that is pathogenic to mosquitoes; this makes it an effective means to reduce to number of mosquitoes and therefore reducing malaria transmission.
According to the study the effectiveness of the fungus on mosquitoes were conducted using both laboratory as well as field studies, where experimenters model estimates the “impact of different vector control intervention on the mosquito’s life cycle and the average number of mosquitoes that survive to transmit malaria.” The results from the studies and experiments show that the technique must be widely practiced as a community in order to successfully control malaria transmissions, whether the strategies involve fungal bio pesticides or insecticide treated bed nets (ITNs). This technique could be proven to be very help in the reduction of malaria transmittance rate, this technique when applied to the citizens of Thailand could prove to be beneficial in reduction the chance of adults and children to the exposure of diseases such as malaria.

Malaria carrying mosquito
Bibliography: http://www.sciencedaily.com/releases/2009/10/091001235445.htm