Corroboree Frog

1st period Fresh Water Bio by: Ashley Marchetti

Wetlands:

-Land consisting of marshes or swamps; saturated land


-People are working to protect wetlands by trying to stop pollutants from being poured into the wet lands because if the wetlands receive to much pollutants the plants stop filtering the water and water with dangerous substnaces into bigger bodies of water. Also people are trying to stop building as many infastructures and buildings that drain/ get rid of all the wetlands and their space. Government also helps in this conflict by putting out laws that state no one must hurt the wetlands and if done, it is considered to be an oppresion.

Wetland frogs:

Corroboree Frog:

-The Corroboree frogs are two species of small, ground dwelling frogs, native to Southern Tablelands of Australia. The two species are the Southern Corroboree Frog and the Northern Corroboree Frog.


- In all, almost one-third of North America's 86 species of frogs and toads appear to be in trouble. (In general, frogs have a smoother, more moist skin and live more closely to water than toads, which are squatter and often covered with warty bumps.) Gary Fellers, a research biologist with the National Park Service, visited Lassen Volcanic National Park in Northern California last year looking for the once-common Cascades frog. He used as his guide historic research papers describing the frog as being present every few feet. "We visited 50 sites with decent habitats," he says. "We found two frogs at one site." This year there were none.

-Hayes himself was acutely interested in discovering the causes of a global decline in frog populations that had worried scientists since the early 1990s. Many of the hormones and genes that regulate reproduction and development and metabolism in frogs performing similar functions in people, making frogs important proxies for humans--nature's test animals in a changing world. Syngenta's concern was different. The Environmental Protection Agency had been ordered by Congress to "reregister" atrazine as part of a program to subject a large number of older pesticides to current safety testing, a process that required considerable new data.


-The Southern Corroboree Frog is distinctive and easily recognised because of its striking dorsal colour pattern consisting of bright yellow longitudinal stripes alternating with black stripes (Cogger 1992; 2000). The ventral surface is boldly marked with black and yellow and white blotches. A large flat femoral gland is present on each hind limb, and the inner metatarsal tubercle is low and round. Adults reach a length of between 25 and 30 mm. There are a number of differences between the Southern and Northern Corroboree Frogs, including considerable genetic divergence (Osborne and Norman 1991; Roberts and Maxson 1989), differences in colour-pattern and morphology (Osborne et al. 1996; Pengilley 1966) and skin biochemistry (Daly et al. 1990).


-Differing in appearance only slightly from the corroboree frog (Pseudophryne corroboree), the northern corroboree frog has the same distinctive bright yellow and black striped back. However, the stripes are a greener shade of yellow and are also a little narrower. The underside has white, black and yellow-green blotches. Females are larger than males and, unusually, neither sex has webbed toes. In some areas, 'corroboree' is an aboriginal word for a gathering or meeting – where traditionally the attendees are adorned with yellow markings not unlike those of this rare frog.