HOME >> BIOLOGY >> NEWS
Research to fine tune studies of geologic time

BLACKSBURG, Va. Nov. 5, 2001Research by a Virginia Tech geological-sciences graduate student has more closely defined the environmental effect on organisms over time, a step that will help in such fields as evolutionary biology, paleontology, paleoecology, and paleo-environmental interpretation. It can, for example, help oil companies with mapping.

The research will be presented during the 113th national Geological Society of America meeting in Boston, Nov. 1-10, 2001.

Jennifer Stempien said the basic theory in geobiology is that environmental conditions have a strong influence on the shape and size of organisms. In the past, such studies in geobiology were done over a time range of two million years, when changes in fossil shape and size are reasonably detected. "Our study is for one half million years," she said. "Were trying to see what the shortest time interval is in which we can see change in an organism due to environmental change. We are focusing on a gradual environmental change that occurred in Southeastern Virginia 3.5 million years ago to three million years ago due to changes in sea level and the effect of that change on one species."

Stempien, along with Gwen M. Daley of the Department of Geology and Geophysics at the University of Wisconsin, Madison, and Michal Kowalewski of Virginia Techs Department of Geological Sciences, are using Mulinia congesta (Conrad), a small bottom-dwelling clam, in their research. The clam can be found along the Eastern seaboard, but the study focuses on those collected in Virginia and in rocks that record the environmental change. "It starts out in a high-energy environment with a lot of wave action and gradually changes to lower energy," Stempien said. "The water calmed down and became more muddy and soupy."

Organisms can possibly change in overall shape and size over time due to environmental forces. "We saw from our first analysis that in 500,000 years, there is no s
'"/>

Contact: Jennifer Stempien
jstempie@vt.edu
540-231-1840
Virginia Tech
7-Nov-2001


Page: 1 2

Related biology news :

1. Researchers determine genetic cause of Timothy syndrome
2. Researchers find color sensitive atomic switch in bacteria
3. Schepens Eye Research Institute receives Roadmap grant to develop center for curing eye diseases
4. Researchers identify protein promoting vascular tumor growth
5. Researchers devise potent new tools to curb ivory poaching
6. Researchers create nanotubes that change colors, form nanocarpet and kill bacteria
7. Researchers ID chlorophyll-regulating gene
8. Environmental issues center of Inland Northwest Research Alliance 4th Annual Symposium
9. Research suggests new avenue for stopping, preventing colon cancer
10. Researchers develop fast track way to discover how cells are regulated
11. Research on carbohydrate metabolism receives historical recognition

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/14/2017)... (NYSE: IBM ) is introducing several innovative partner startups ... collaboration between startups and global businesses, taking place in ... nine startups will showcase the solutions they have built with ... France is one of the ... percent increase in the number of startups created between 2012 ...
(Date:5/16/2017)... 16, 2017   Bridge Patient Portal , ... MD EMR Systems , an electronic medical ... GE, have established a partnership to build an ... the GE Centricity™ products, including Centricity Practice Solution ... These new integrations will allow healthcare delivery ...
(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... platform specifically designed for life science researchers to analyze and interpret datasets, ... Franklin, who made a major contribution to the discovery of the double-helix ...
(Date:10/11/2017)... ... ... Personal eye wash is a basic first aid supply for any work environment, but most ... you rinse first if a dangerous substance enters both eyes? It’s one less decision, and ... unique dual eye piece. , “Whether its dirt and debris, or an acid or alkali, ...
(Date:10/11/2017)... , Oct. 11, 2017  VMS BioMarketing, a leading ... a nationwide oncology Clinical Nurse Educator (CNE) network, which will ... need for communication among health care professionals to enhance the ... nurses, office staff, and other health care professionals to help ... breast cancer. ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... implantation and pregnancy rates in frozen and fresh in vitro fertilization (IVF) ... and maternal age to IVF success. , After comparing the results from the ...
Breaking Biology Technology:
Cached News: