BIOB50H3 Chapter Notes - Chapter 1: Scientific Control, Cellular Respiration, Ecological Study
8 Sep 2017
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Document Summary
Deformity and decline in amphibian populations: a case study. Caught leopard frogs and found that half of them were severely deformed; found that the problem was widespread and on the rise; amphibian populations were declining and under the threat of extinction. Human actions that changed our environment were done because they didn"t consider natural systems but now they realize they"re driven by interactions of organisms and the environment. Ecology scienti c study of how organisms affect and are affected by other organisms and their environment. Events in the natural world can be linked or connected to one another, as organisms interact with each other directly/indirectly and physical environment. Early observations suggest that parasites cause amphibian deformities. Stephen ruth saw paci c tree frogs and long-toed salamanders with deformities in northern. California all contained a parasite, ribeiroia ondatrae, a trematode atworm so they hypothesized that the worm was causing the deformities.
