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- Adaptation (Biology); Climatic changes; Devils Hole pupfish – Effect of global warming on; Global warming; Heat adaptation (1)
- Bryum – Sex ratio; Heat — Physiological effect; Mosses; Temperature — Physiological effect (1)
- Chloramines (1)
- Freshwater mussels – Control (1)
- Hot springs; Microorganisms; Nevada – Great Boiling Spring; Thermophilic microorganisms (1)
Articles 1 - 5 of 5
Full-Text Articles in Life Sciences
A Spatial And Temporal Analysis Of Microbial Communities In Great Boiling Spring, Nevada, U.S.A., Jessica K. Guy, Joseph P. Peacock, Jeremy A. Dodsworth, Tanja Woyke, Tijana G. Del Rio, Brian P. Hedlund
A Spatial And Temporal Analysis Of Microbial Communities In Great Boiling Spring, Nevada, U.S.A., Jessica K. Guy, Joseph P. Peacock, Jeremy A. Dodsworth, Tanja Woyke, Tijana G. Del Rio, Brian P. Hedlund
Undergraduate Research Opportunities Program (UROP)
Great Boiling Spring (GBS) is a large, circumneutral, long residence time geothermal spring in the US Great Basin. Twelve samples were taken from four different sediment sites and the planktonic community in the bulk water of GBS on up to four different dates. Microbial community composition and diversity was assessed by using a barcoded, improved universal primer set targeting the V8 portion of the 16S rRNA gene and PCR. Over 200,000 products were sequenced using the Roche 454 GS FLX Titanium System. Sediment and planktonic microbial communities were distinct with very little overlap, regardless of the sampling location or temperature. …
The Use Of Chloramines To Eradicate Quagga Mussel Larvae, Trea Lacroix, Kumud Acharya
The Use Of Chloramines To Eradicate Quagga Mussel Larvae, Trea Lacroix, Kumud Acharya
Undergraduate Research Opportunities Program (UROP)
Quagga Mussels, Dressenia bugensis, are a growing problem in the western United States, particularly in their ability to infest underwater infrastructures and clog water intake pipes and screens of power and treatment plants. Chlorine has been found to be the most effective chemical to get rid of veligers (planktonic larval form of quagga mussels) in the pipes. However, chlorine leaves a residue called trihalomethane, which is a carcinogen at higher concentrations. The purpose of this project is to test the effectiveness of an alternate chemical, chloramines (chlorine and ammonia), which leaves behind little to no residual trihalomethane. Upon experimentation with …
Effects Of Climate Change On The Viability Of The Devils Hole Pupfish, Matthew Heuton, Stanley D. Hillyard, Frank Van Breukelen
Effects Of Climate Change On The Viability Of The Devils Hole Pupfish, Matthew Heuton, Stanley D. Hillyard, Frank Van Breukelen
Undergraduate Research Opportunities Program (UROP)
Devils hole is an unusual, cavernous, aquifer-fed its ideal temperature range. spring in Death Valley National Park. It is the only home to a critically endangered species, Cyprinidon diabolis, a.k.a. The Devils Hole Pupfish. C. diabolis allows us a unique look at the impact of climate change on a species that has no gene flow and no possibility of escape from its current habitat. Climate change affects ectotherms (cold-blooded animals) tremendously since their body temperature is subject to changes in the temperature of their environment. In the case of C. diabolis, they are subject to high temperatures year round, around …
Community Classification And Distribution Patterns Of Freshwater Mussels Of Strawberry River, Arkansas, Sujata Poudel, David E. Tenenbaum Ph.D, John L. Harris, Alan D. Christian Ph.D
Community Classification And Distribution Patterns Of Freshwater Mussels Of Strawberry River, Arkansas, Sujata Poudel, David E. Tenenbaum Ph.D, John L. Harris, Alan D. Christian Ph.D
Interdisciplinary Perspectives: a Graduate Student Research Showcase
The purpose of this study is to determine if there are distinct communities of freshwater mussels in the Strawberry River, Arkansas, and if environmental variables influenced these communities. The Strawberry River watershed is located in the Ozark Mountains in northcentral Arkansas. Based on previous studies of interior highland mussels, we expected distinct low, mid, and high order stream mussel communities. Mussels were surveyed from headwaters to mouth and resulted in 38 species from 57 sites. Environmental variables of land cover, geology, soiltype, and drainage area were calculated at local and subwatershed scale using GIS. Mussel presence/absence and environmental variables were …
Does Thermal Stress Cause Females Of The Plant Bryum Argenteum To Manipulate The Sex Ratios Of Their Offspring?, Elisha Rhodes, Lloyd Stark
Does Thermal Stress Cause Females Of The Plant Bryum Argenteum To Manipulate The Sex Ratios Of Their Offspring?, Elisha Rhodes, Lloyd Stark
Festival of Communities: UG Symposium (Posters)
About half of all moss taxa exhibit female-biased sex ratios, and bryophyte male rarity remains largely unexplained. One possible explanation is differential stress tolerance of spores due to maternal sporophyte manipulation during stress. To test this hypothesis, sporophytes of the species Bryum argenteum were subjected to thermal stress and observed for growth abnormalities and sporophyte abortions. Data display a correlation between increased temperature and increased sporophyte abortions as well as increased time to complete meiosis, possibly indicating decreased fitness. Continued global warming may create more stressful environments for sporophytes resulting in the elimination of males from local populations.