One way to gather information about the amphibian decrease was done by the Global Amphibian Assessment or GAA. The GAA was the first-ever global assessment the amphibian conservation status and takes into account the 5,743 known species in the world, according to the GAA (AmphibiaTree). The results of the GAA are posted for public knowledge on the Amphibian Specialty Group Website (Animal Specialty Group). There is an assessment on the amphibian decline, including the Red List threat, the regions and ranges of certain amphibians, and general ecology information (AmphibiaTree). The GAA has stated t...
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...2003. The effects of adjacent land use on wetland amphibian species richness and community composition. Canadian Journal Of Fisheries & Aquatic Sciences,[cited November 30 2011] 60(9), 1078-1094.
Forman RTT, Alexander LE. 1998. Roads and their major ecological effects. Annual Revies , [cited December 2 2011](29), 207-231. Available from: doi: 10.1146/annurev.ecolsys.29.1.207
Leydig TF. 1992. Human impacts on genetic diversity in forest ecosystem. Oikos ,[cited December 1 2011] (63), 87-108. Available from: http://www.fs.fed.us/psw/publications/ledig/captured/psw_1992_ledig037.pdf
Hayes TB, Case P, Chui S, Duc C, Haeffele C, Haston K, Tsui M. 2006. Pesticide Mixtures, Endocrine Disruption, and Amphibian Declines: Are We Underestimating the Impact? Environmental Health Perspectives, [cited December 2 2011] 11440-50. Available from: doi:10.1289/ehp.8051
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- Amphibian means “double life” referring to the fact that most adult amphibians live on land while embryos need water to survive. Some amphibians have been around since the Jurassic age; however the numbers of these long alive animals are declining around the world (Amphibia). As of 2010, 32% of the world’s 6600 amphibian species were threatened with extinction (Hayes, Falso, Gallipeau, Stice 2010). There is no single cause of the amphibian decline, but it seems that habitat loss, like deforestation, is the main reason along with human impact in terms of urbanization, forest fragmentation, predation, human exploitation, pathogens and climate change (Hayes, Falso, Gallipeau, Stice 2010).... [tags: Ecology ]
2006 words (5.7 pages)
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2062 words (5.9 pages)
The Pesticide Called Atrazine Acts as an Endocrine Disruptor Promoting Demasculinization and Feminization in Amphibians
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1025 words (2.9 pages)
- The emergences of infectious diseases represent one of the greatest threats confronting amphibians. One third of the world’s amphibian population is facing extinction. Frog populations have also been steadily declining. Amphibian populations are faced with invasive environmental problems including infectious diseases. (Holland et al. 2007). Ribeiroia ondatrae, a trematode parasite, is suggested to be linked to the rise in frog mutations during development. Mutations include: missing, extra, and/or malformed limbs.... [tags: Infectuous Diseases, Frogs, Tadpoles]
1030 words (2.9 pages)
- Frogs are amphibians that have been around for over 360 million years. However, within recent years, frogs and other amphibians have had an alarming decline in species. While the reason behind this decline cannot be determined to just one thing, there are still ways that we can fix the problem. Before a solution can be proposed, the causes of endangerment need to be analyzed. Many case studies have led to different conclusions, complicating the situation. A case study in the North American Rocky Mountains shows that while the Leopard Frog’s population has decreased, the Wood Frog has remained unaffected.... [tags: Genetics]
993 words (2.8 pages)
- The article I chose was Linking global warming to amphibian declines through its effects of on the female body condition and survivorship. This Article came from the Global Change and Conservation Ecology Scientific journal and was published in 2006. The Author was C.J. Reading. It is known fact that global warming is occurring and that the temperate amphibian population is diminishing. The main topic of the article was a study conducted to determine if global warming had any effects on the steadily declining temperate amphibian population.... [tags: amphibians, warming, temperature]
532 words (1.5 pages)
- My research paper is going to focus on the mudpuppy. I think many people like the mudpuppy because you can see them around this area. The mudpuppy is in the tank that I was taking care of. I’ll go into detail a little bit about the mudpuppy and tell some facts about where they came from and so on. Mudpuppies are native to this area so it was cool to take care of something that’s around here. The mudpuppy to me is one of my favorite animals that live under water. The mudpuppy is related to amphibians.... [tags: amphibians, mudpuppy, waterdog]
1202 words (3.4 pages)
- 1. The Missing Link Between Amphibians and Fish 2. The Fossil of Tiktaalik 3. Evolutionary History 4. Mammals 5. Darwin Theory 1.) The author and his colleagues chose to focus on 375 million year old rock because they believed the missing link between amphibians and fish would be located in them. The rocks examined by the author and his colleagues were sedimentary rock, which are most often found in rivers and seas. 2.) The fossil of Tiktaalik had fins and scales, while also having a flexible neck, a flat head, and a complex bone structure.... [tags: fossil of Tiktaalik, darwin]
1134 words (3.2 pages)
- The Genus Varanus komodoensis, or more commonly known as the Komodo dragon is the largest living lizard on Earth. The Komodo dragon belongs to the class reptilian and the phylum Chordata. They are a species of Monitor Lizard that have been isolated for millions of years on the islands in Indonesian Archipelago and were not discovered until the First World War (Diamond, 1994). The Komodo dragon is an immense reptile that can grow up to an average of three meters long and weigh 150kg. They have a complete digestive system and an internal skeletal system composed of both bone and cartilage.... [tags: national park, amphibians]
916 words (2.6 pages)
- ... This is similar to birds and reptiles. On the other hand, all other living mammalian species, including humans, are in the subclass Theria. They have in common the fact that they give birth to live young. Therian mammals apparently did not evolve from the Prototheria. The relatively primitive prototherian reproductive system evidently evolved after their evolutionary line separated from the other early mammals. The next type of animals to be discussed is reptile. The modern reptiles representing only a small part of those present in ancient times.... [tags: mammals, reptiles, amphibians, life, animals]
1091 words (3.1 pages)