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Full-Text Articles in Life Sciences

Precipitation Variability And Nitrogen Deposition Alter Root Distribution In A Tallgrass Prairie, Emmalyn P. Terracciano, Michael Schuster, Jeffrey Dukes Aug 2014

Precipitation Variability And Nitrogen Deposition Alter Root Distribution In A Tallgrass Prairie, Emmalyn P. Terracciano, Michael Schuster, Jeffrey Dukes

The Summer Undergraduate Research Fellowship (SURF) Symposium

Climate change and increases in nitrogen deposition impact ecosystems globally. Projected atmospheric warming allows rain to fall in larger events with longer dry periods in between, increasing rainfall variability in many regions. Concurrently, the combustion of fossil fuels and the heavy use of nitrogen fertilizers continue to increase the availability of nitrogen globally. However, not much is known about how these global change factors, increased rainfall variability and nitrogen deposition, interact with each other to affect ecosystem functions, particularly belowground where root production contributes to soil carbon pools- an important component in regulating climate. In order to study these factors, …


Evaluating Contaminants Of Emerging Concern In Commercial Biosolid-Based Fertilizers, John Hemmerling, Michael L. Mashtare, Linda S. Lee Aug 2014

Evaluating Contaminants Of Emerging Concern In Commercial Biosolid-Based Fertilizers, John Hemmerling, Michael L. Mashtare, Linda S. Lee

The Summer Undergraduate Research Fellowship (SURF) Symposium

The production and popularity of commercially available biosolid-based fertilizers are increasing because of their economic, environmental, and plant nutrition benefits, particularly in urban and suburban areas. Because biosolid-based fertilizers are derived from waste water treatment plant residuals, we hypothesized that there is the potential for micropollutants to persist in these products. Their presence would be of particular concern due to their potential impact on human and ecological health and risk of bioaccumulation. This study involves quantifying contaminants of emerging concern in three biosolid-based fertilizers, and 2 non-biosolid-based fertilizers, a composted animal manure and an organic compost. Our extraction method employed …


The State Of The Upper Bay Of Panama Wetlands: Ecological Significance, Environmental Policy, Urbanization, And Social Justice, Madeline A. Price May 2014

The State Of The Upper Bay Of Panama Wetlands: Ecological Significance, Environmental Policy, Urbanization, And Social Justice, Madeline A. Price

Celebration

I conducted this research while studying abroad with SIT Panama: Tropical Ecology, Marine Ecosystems, and Biodiversity Conservation. This is a multidisciplinary investigation of the Upper Bay of Panama wetlands, a 49,000 hectare region east of Panama City that features mangrove, intertidal mudflat, and grassland habitat internationally recognized as a stopover site for two million shorebirds every migration season. However, with economic pressure to increase urban development in the area, this land’s protected status under the Ramsar convention was suspended for a year in April 2012. By compiling scientific studies, news articles, photographs, and interviews with local conservationists and community members, …


Salmonid Early Response To Restored Freshwater Floodplain, Erin Morgan, Jeffery R. Cordell, Lauren Rich May 2014

Salmonid Early Response To Restored Freshwater Floodplain, Erin Morgan, Jeffery R. Cordell, Lauren Rich

Salish Sea Ecosystem Conference

Shortly after the construction of the Hansen Creek floodplain restoration project in 2010-2011, we conducted a pilot study of the initial use of the site by juvenile salmonids and the early development of invertebrate communities. We found that juvenile Coho salmon collected from the restored floodplain during periodic inundation events had higher instantaneous rations (a measure of feeding intensity) than Coho collected during regular monthly sampling in the creek channels. The floodplain site also had consistently higher insect abundances. Applying the data and lessons learned from the pilot study, we undertook a more comprehensive 13-month study of Hansen creek and …


02. Animal Science, University Of Central Oklahoma Jan 2014

02. Animal Science, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


06. Computer Science, University Of Central Oklahoma Jan 2014

06. Computer Science, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


04. Botany, University Of Central Oklahoma Jan 2014

04. Botany, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


07. Criminal Justice, University Of Central Oklahoma Jan 2014

07. Criminal Justice, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


09. Environmental Science, University Of Central Oklahoma Jan 2014

09. Environmental Science, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


11. Genetics, University Of Central Oklahoma Jan 2014

11. Genetics, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


12. Kinesiology, University Of Central Oklahoma Jan 2014

12. Kinesiology, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


08. Engineering, University Of Central Oklahoma Jan 2014

08. Engineering, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


10. Forensic Science, University Of Central Oklahoma Jan 2014

10. Forensic Science, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


05. Chemistry, University Of Central Oklahoma Jan 2014

05. Chemistry, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


14. Optometry, University Of Central Oklahoma Jan 2014

14. Optometry, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


15. Pharmacy, University Of Central Oklahoma Jan 2014

15. Pharmacy, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


18. Statistics, University Of Central Oklahoma Jan 2014

18. Statistics, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


17. Psychology, University Of Central Oklahoma Jan 2014

17. Psychology, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


19. Zoology, University Of Central Oklahoma Jan 2014

19. Zoology, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


03. Biology, University Of Central Oklahoma Jan 2014

03. Biology, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


13. Mathematics, University Of Central Oklahoma Jan 2014

13. Mathematics, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.


16. Physics, University Of Central Oklahoma Jan 2014

16. Physics, University Of Central Oklahoma

Oklahoma Research Day Abstracts

No abstract provided.