Thursday, February 7, 2019
Decline of Amphibians Essay -- Animal Research
IntroductionWhen researching the population drop of amphibians as a global issue, it is evident that there vex been drastic changes in the departed 30 years. Mike Lannoo from the U.S. Declining amphibious aircraft Task Force says that there have been significant losses in amphibian populations for an extensive period of term (No individual Reason, 1999). Stuart et al. (2004) stated that according to scientists at the International Union for saving of Nature (IUCN), at least 427 species, roughly 7.4%, are at a dangerously high risk of extinction (Kaylor, 2006). The problem of amphibian decline cannot be linked directly to one single cause (No Single Reason, 1999). Instead, scientists have related the decline to disease, habitat loss, changes in climate, and pollution (Hayes, Falso, Gallipeau, Stice, 2010 stand et al., 2002 Dunson et al., 1992). It is concluded that legion(predicate) of these factors are related to and possibly caused by homosexual interaction (McCallum, 2007 ). The declines could be caused by pathogens, climate change, or wildlife toxicology, says Dr. Ashley Mattoon from the Worldwatch Institute (Kirby, 2000). amphibious vehicle decline is a serious global topic and is especially hurtful in the Mid-Atlantic region of the United States. Specifically, there are many causes of amphibian decline in Virginia. The Weldon Cooper Center at the University of Virginia ranks Virginia twelfth in population at an annual growth rate of 7% (Kelhart, 2006). Of Virginias 79 species of amphibians, four species are classified as draw near threatened, three species are classified as vulnerable, and one species is classified as endangered (Amphibians in VA, n.d.).The problem of amphibian decline can be traced back to many sources, which can either be classified as n... ...ander (Desmognathus fuscus) of southern Appalachia. Retrieved from ScienceDirect website http//www.sciencedirect.com/science/article/pii/S0306456500000528No Single Reason for Amphibian Decline. (1999, November 19). ScienceDaily. Retrieved from http//www.sciencedaily.com/releases/1999/11/991119075426.htmSexton, O. J., Phillips, C., & Bramble, J. E. (1990, September 19). The Effects of Temperature and Precipitation on the Breeding Migration of the uneven Salamander (Ambystoma maculatum) Press . Retrieved February 14, 2012, from http//www.jstor.org/stable/info/1446443ufoStuart, S. N., Chanson, J. S., Cox, N. A., Young, B. E., Rodrigues, A. S. L., Fischman, D. L., & Waller, R. W. (2004, October 14). Status and Trends of Amphibian Declines and Extinctions Worldwide. view retrieved from Science Mag website http//www.sciencemag.org/content/306/5702/1783
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