| Abstract: | Species dominance in benthonic foraminifera, represented by percent of the assemblage composed of the single most abundant species, shows little change in observed range of values from shallow into deep-marine waters in 1005 samples from the Gulf of Mexico, Atlantic, and Arctic margins of North America. This finding contrasts with the model that species dominance is highest in shallow-marine environments and decreases offshore into deeper marine waters. Equitability, the relation of all species abundances within an assemblage, also shows little change between the values found in shallow-marine assemblages and those found in assemblages from deeper water environments. Equitability and dominance values found in 421 assemblages from Palaeocene, Eocene, Miocene, and Pleistocene strata of the Atlantic and E Gulf of Mexico coastal plains are similar to the modern values. -from Authors |
| Genre: | Article |
| ProdID: | 70016815 |
| Citation Author: | Gibson, T. G.; Hill, E. E. |
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| Citation End Page: | 51 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Foraminiferal Research |
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| Citation Number Of Pages: | 18 |
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| Citation Search Results Text: | Species dominance and equitability: patterns in Cenozoic foraminifera of eastern North America; 1992; Article; Journal; Journal of Foraminiferal Research; Gibson, T. G.; Hill, E. E. |
| Citation Start Page: | 34 |
| Citation Volume: | 22 |
| Citation Year: | 1992 |
| Type: | citation/reference |
| Text: | Species dominance and equitability: patterns in Cenozoic foraminifera of eastern North America; 1992; Article; Journal; Journal of Foraminiferal Research; Gibson, T. G.; Hill, E. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.2113/gsjfr.22.1.34 |
| Date Other: | Wed, 1 Jan 1992 00:00 -0600 |
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