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OCR: Response of Individual Species to Environmental Change Late Pleistocene einall inaininal faunas froin the United States (USA) and other continental areia (e.g ., Australia, Eurasia, South America) are frequently characterized by the co - occurence of species whose distributions are totally allopatric today and hence, there are no inodern analoge for these associations (Grabain 1986, Grahamn and Lundelius 1984, Seinken 1974). These non - analog associations can be created by taphoncinic processes like tine averaging and inixing. However, AMS dating of specific amino acids froin the bone of individual rodent java has shown that inany non - analog as sociations represent the contemporaneous co - occurenes of these allopatric taxa (Stafford and Seinken 1990). Non - analog coimmunities can also ...