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ETD Abstract Container

Abstract Header

Paleoenvironmental History of the Middle Ordovician Rugosa of Eastern North America

Andreasen, Gretchen Hampt
http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1411639380

Abstract Details

1989, BA, Oberlin College, Geology.
Our understanding of the structure and function of biological systems can be increased when viewed in the context of their evolutionary history on a geological time scale. Generally, both paleoecology and ecology have focused on the interrelationships of organisms and their environments in short time frames. For instance, a paleoecologist might study the fossil communities of the Columbus Limestone reefal environment at Marblehead, Ohio, or an ecologist might attempt to characterize the interrelationship of glacier lilies and their pollinators. Both workers may realize that the organisms they study evolved in response to ecological pressures, yet neither, most likely, considers that the ecological contexts in which those organisms evolved may have changed through geologic time. Because biological systems evolve through geologic time, organisms show adaptations to conditions that mayor may not exist at the time they live but that must have directed the evolution of the organisms which gave rise to them. It is always the case that the ecology of extant organisms is, in part, a relict of their evolutionary histories. By considering organisms in the context of their evolutionary paleoecology, we can gain a powerful tool for understanding why they have evolved the way they have.
M. L. Droser (Advisor)
107 p.
Geology
Middle Ordovician Rugosa; Eastern North America; New York; Ohio; Kentucky; organisms; fossil;

Recommended Citations

Citations

  • Andreasen, G. H. (1989). Paleoenvironmental History of the Middle Ordovician Rugosa of Eastern North America [Undergraduate thesis, Oberlin College]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1411639380

    APA Style (7th edition)

  • Andreasen, Gretchen. Paleoenvironmental History of the Middle Ordovician Rugosa of Eastern North America. 1989. Oberlin College, Undergraduate thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1411639380.

    MLA Style (8th edition)

  • Andreasen, Gretchen. "Paleoenvironmental History of the Middle Ordovician Rugosa of Eastern North America." Undergraduate thesis, Oberlin College, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1411639380

    Chicago Manual of Style (17th edition)

oberlin1411639380
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© 1989, all rights reserved.
This open access ETD is published by Oberlin College Honors Theses and OhioLINK.