DRAFT: This module has unpublished changes.


Hayle Clark

Environmental Seminars

May 6, 2015








Global Amphibian Declines

Elizabeth Timpe

Presentation Presented by Diba


            Elizabeth Timpe is a STEM educator and is involved with the Connecticut Science Center. She has studied at the University of Connecticut with Dr. Diba Khan-Bureau who presented the presentation in the absence of Elizabeth Timpe. Dr. Diba is a first generation college student. She started her career at Thames Valley Community College and then she continued on to the University of Connecticut where she got her Master’s degree and her PhD in ecology and evolutionary biology. Dr. Diba has worked at Electric Boast as a Senior Environmental Engineer. After leaving her work at Electric Boast she started teaching at Three Rivers where she is the director of the civil and environmental engineering technology programs. Since being a director and professor of these programs she has developed three certificate programs.

             Biodiversity is the process that keeps ecosystems functioning. It also is a reliable indicator of the ecosystems health. Healthy ecosystems provide goods and services for humans. All over the world there are many biodiversity hotspots which hare under threat for habitat loss. There is a loss of species and habitat due to the habitat destruction, pollution, overpopulation, overharvesting, and invasive species. The extinction rate is high for the loss of species. Extinction today is due to the overuse of the environment. There are 220 plants and 6900 amphibians that are endangered in the world today. This information comes from the International Union for Conservation of Nature (IUCN). The IUCN says that they is 12% of birds, 21% of mammals and 325 of amphibians that are considered threatened in the world today. There are 159 species of amphibians that may already be extinct, and 42% of them are declining. All of the extinctions and decline have been happening over the past 30 years. Only about 1% of all the decline species of amphibians have increase over the last 30 years.

            Amphibian diversity consist of about 7093 described species which is divided up into three groups which are frogs, salamanders, and caecilians. Amphibians have been found in every continent expect for Antarctica and apart of every type of ecosystem and habitats. The threat to amphibians in habitat destruction, over exploitation and introduced species. Many other factors also have an effect on the threatened life of the amphibians. Some of the other factors are pollution, diseases, and climate change. Amphibians are a biological indicator of water quality means that they are highly sensitive to environmental stressors and if they are doing well then the environment is doing well.

            People that live in this world today need to take care of the environment that they live in and the amphibians that we have will act as a progress report. Humans are the only species in the world that consciously affect the environment so let’s point people in the right direction. If the humans are willing to change then that will help the environment and the amphibians. With the help of the people who live in this world we might be able to help some the amphibians from going extinct.

DRAFT: This module has unpublished changes.