Decline of Amphibians

Introduction When studying the reduction of the amphibian population as a global problem, it is clear that a shake change occurred in the past 30 years. Mike Lannoo from the American retreat Amphibian Task Force said amphibians had suffered a considerable loss for a long time (No Single Reason, 1999). Stewart et al. (2004) According to scientists from the International Conservation Union for Nature Conservation (IUCN), at least 427 species, about 4%, are in danger of extinction (Kaylor, 2006).

The number of amphibians is decreasing and the number of amphibians in the world plateau is rapidly decreasing. In Central and South America, many mountainous amphibians including carp and most of frog frogs of over 70 species have either disappeared or have drastically decreased 143. Spawning in Takayama Lake: The number of hatched eggs decreases by 0.444

The experts I discussed can explain the significant reduction in amphibian numbers for fungal infections but can not explain all of them. In the research of the Natural Science Report of 2015, I analyzed the decline of American amphibians, found the cause of common stress, and tried to contribute to them all. The report concluded that "smoking gun" does not exist, but the decrease in amphibians is seriously affected by changes in the local environment. One reason is habitat. Until the 1970's, squid, not local, was used for fishing in Yosemite's waterway. Historically, frogs have not developed predator fish. Frogs began to recover because fish were removed from the waterways by protective work. But more stimulating is that there is some evidence that surviving frogs are more resistant to BD.

The emergence of infectious diseases is one of the greatest threats to amphibians. One third of the world's amphibious population is on the verge of extinction. The number of frog populations has steadily declined. Amphibian populations are facing invasive environmental problems including infectious diseases. (Holland et al. Ribeiroia ondatrae, an adsorptive parasite, is thought to be involved in an increase in developing frog mutations. - Variety of frogs, small or big, smelly or poisonous is an excellent indicator of the overall environmental quality. Until today, scientists are still looking for new kinds of frogs that have never been discovered all over the world. Recently a small frog [its scientific name is Eleutherodactylus Iberia, smaller than the American dime,] was found in 1996 under the old leaves of Cuba