Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- William & Mary (50)
- University of Tennessee, Knoxville (10)
- Cal Poly Humboldt (7)
- City University of New York (CUNY) (6)
- East Tennessee State University (6)
-
- Nova Southeastern University (6)
- Old Dominion University (6)
- University of Arkansas, Fayetteville (6)
- Claremont Colleges (5)
- University of Kentucky (5)
- Washington University in St. Louis (5)
- Georgia Southern University (4)
- Illinois State University (4)
- University of Massachusetts Amherst (4)
- University of Texas at El Paso (4)
- West Virginia University (4)
- Fordham University (3)
- The University of San Francisco (3)
- The University of Southern Mississippi (3)
- University of Montana (3)
- University of Nevada, Las Vegas (3)
- Bard College (2)
- California Polytechnic State University, San Luis Obispo (2)
- Eastern Kentucky University (2)
- James Madison University (2)
- Louisiana State University (2)
- Portland State University (2)
- SIT Graduate Institute/SIT Study Abroad (2)
- The University of Akron (2)
- The University of Maine (2)
- Keyword
-
- Biodiversity (17)
- Conservation (11)
- Ecology (7)
- Biogeography (6)
- Climate change (6)
-
- Remote sensing (5)
- Restoration (5)
- Climate Change (4)
- Invasive species (4)
- Mexico (4)
- Amphibians (3)
- California (3)
- Forest management (3)
- Gulf of Mexico (3)
- Machine learning (3)
- Madagascar (3)
- 16S rRNA (2)
- Biogeochemistry (2)
- Birds (2)
- Carbon cycling (2)
- Carnivores (2)
- Competition (2)
- Disturbance (2)
- Diversity (2)
- Ecosystem services (2)
- Endangered Species Act (2)
- Environment (2)
- Ethnography (2)
- Extinction risk (2)
- Fish (2)
- Publication Year
- Publication
-
- Dissertations, Theses, and Masters Projects (50)
- Electronic Theses and Dissertations (14)
- Masters Theses (12)
- Biological Sciences Theses & Dissertations (6)
- Cal Poly Humboldt theses and projects (6)
-
- Theses and Dissertations (6)
- Dissertations, Theses, and Capstone Projects (5)
- Arts & Sciences Electronic Theses and Dissertations (4)
- Doctoral Dissertations (4)
- Graduate Theses, Dissertations, and Problem Reports (4)
- HCNSO Student Theses and Dissertations (4)
- Open Access Theses & Dissertations (4)
- Graduate Student Theses, Dissertations, & Professional Papers (3)
- Graduate Theses and Dissertations (3)
- Master's Projects and Capstones (3)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (3)
- Bard Center for Environmental Policy (2)
- Biology Theses (2)
- Capstone Collection (2)
- Electronic Thesis and Dissertation Repository (2)
- Honors Theses (2)
- Honors Thesis (2)
- Master's Theses (2)
- Online Theses and Dissertations (2)
- Pomona Senior Theses (2)
- Scripps Senior Theses (2)
- Student Theses 2015-Present (2)
- Theses and Dissertations--Plant and Soil Sciences (2)
- University of New Orleans Theses and Dissertations (2)
- Williams Honors College, Honors Research Projects (2)
Articles 181 - 198 of 198
Full-Text Articles in Physical Sciences and Mathematics
Development Of Supercritical Fluid Extraction (Sfe) For The Determination Of Polychlorinated Biphenyls In Tissues Of Aquatic Biota, Michael O. Gaylor
Development Of Supercritical Fluid Extraction (Sfe) For The Determination Of Polychlorinated Biphenyls In Tissues Of Aquatic Biota, Michael O. Gaylor
Dissertations, Theses, and Masters Projects
No abstract provided.
Small Mammal Habitat Uses Of Two Natural And Created Wetlands In Southeastern Virginia, Amanda Mckenney Mueller
Small Mammal Habitat Uses Of Two Natural And Created Wetlands In Southeastern Virginia, Amanda Mckenney Mueller
Dissertations, Theses, and Masters Projects
No abstract provided.
Small Mammal Community Structure In Restored Prairies, Kathleen A. Falout
Small Mammal Community Structure In Restored Prairies, Kathleen A. Falout
Masters Theses
The Illinois Department of Natural Resources currently manages approximately 4,000 hectares of natural prairie. High human impacts coupled with small patch size result in challenging management decisions for prairie conservation. The ideal restored prairie would consist of a mosaic of habitats varying in vegetation from forb-grass dominated areas to oak savannas, with concurrent stages of vegetative succession occurring across the habitats. A study was conducted at the Middle Fork State Fish and Wildlife Area located in Vermillion County, IL, to analyze small mammal diversity and community composition among three different stages of prairie restoration.
The three treatment categories were: fallow …
Lipid Class Composition Of Oysters, Crassostrea Virginica, Exposed To Sediment-Associated Pahs, Tong Li
Lipid Class Composition Of Oysters, Crassostrea Virginica, Exposed To Sediment-Associated Pahs, Tong Li
Dissertations, Theses, and Masters Projects
No abstract provided.
Potential For Population Regulation Of The Zebra Mussel, Dreissena Polymorpha, In The Hudson River, Larry C. Boles
Potential For Population Regulation Of The Zebra Mussel, Dreissena Polymorpha, In The Hudson River, Larry C. Boles
Dissertations, Theses, and Masters Projects
No abstract provided.
Breeding Ecology, Success, And Population Management Of The Piping Plover (Charadrius Melodus) At Chincoteague National Wildlife Refuge, Virginia, Robert Richard Cross
Breeding Ecology, Success, And Population Management Of The Piping Plover (Charadrius Melodus) At Chincoteague National Wildlife Refuge, Virginia, Robert Richard Cross
Dissertations, Theses, and Masters Projects
No abstract provided.
Seasonal Composition Of Mesozooplankton In The Pagan River, A Nutrient Enriched Virginia Estuary, Lillian Norman Davis
Seasonal Composition Of Mesozooplankton In The Pagan River, A Nutrient Enriched Virginia Estuary, Lillian Norman Davis
Biological Sciences Theses & Dissertations
A two year study of the mesozooplankton composition and seasonal distribution was conducted in the Pagan River, a nutrient rich tidal estuary and tributary to the lower James River. The mesozooplankton was dominated by calanoid copepods (80%), with the total zooplankton abundance peaks occurring during spring and fall. The total mean abundance, 3008/m', was somewhat lower than those found by other authors, however the mean abundance at one station approximated those means. Seventy-eight percent of the calanoid copepods were Acartia spp. that were primarily responsible for the fall increase in mesozooplankton abundance. The spring increase was primarily due to increases …
The Effects Of Contaminated Sediment On The Epidermal Goblet Cells Of The Mummichog, Fundulus Heteroclitus, Laurent C. Mézin
The Effects Of Contaminated Sediment On The Epidermal Goblet Cells Of The Mummichog, Fundulus Heteroclitus, Laurent C. Mézin
Dissertations, Theses, and Masters Projects
Secretion of mucus by epidermal goblet cells is an important first line of defense for teleosts. It protects them against many of the biological, physical and chemical insults they encounter in their environment. This project monitored changes in hemoglobin concentration in epidermal mucus and in the density, diameter and mucus quality of epidermal goblet cells in the mummichog, Fundulus heteroclitus, following exposure to creosote-contaminated sediment. Male fish (200) were exposed for 13 days in flowthough aquaria to either an uncontaminated reference sediment or contaminated sediment containing 30% Elizabeth River sediment. Fish were sampled on Days 0, 3, 7 and 13. …
Responses Of Cytochrome P450ia In Freshwater Fish Exposed To Pulp Mill Effluents In Experimental Stream Channels, Laura Anne Bankey
Responses Of Cytochrome P450ia In Freshwater Fish Exposed To Pulp Mill Effluents In Experimental Stream Channels, Laura Anne Bankey
Dissertations, Theses, and Masters Projects
No abstract provided.
Distribution Of Organochlorine Pollutants In Sea Turtles, Mary J. Rybitski
Distribution Of Organochlorine Pollutants In Sea Turtles, Mary J. Rybitski
Dissertations, Theses, and Masters Projects
No abstract provided.
Growth Response Of Eelgrass (Zostera Marina L) To Root-Rhizome And Whole Plant Exposure To Atrazine, Arthur C. Schwarzschild
Growth Response Of Eelgrass (Zostera Marina L) To Root-Rhizome And Whole Plant Exposure To Atrazine, Arthur C. Schwarzschild
Dissertations, Theses, and Masters Projects
No abstract provided.
Shoreline Habitat Selection By Bald Eagles (Haliaeetus Leucocephalus) In A Non-Breeding Eagle Concentration-Area On The James River, Virginia, Kennedy H. Clark
Shoreline Habitat Selection By Bald Eagles (Haliaeetus Leucocephalus) In A Non-Breeding Eagle Concentration-Area On The James River, Virginia, Kennedy H. Clark
Dissertations, Theses, and Masters Projects
No abstract provided.
Contaminant Accumulation In Hard And Soft Shell Blue Crabs From An Urban Subestuary, Robert F. Mothershead
Contaminant Accumulation In Hard And Soft Shell Blue Crabs From An Urban Subestuary, Robert F. Mothershead
Dissertations, Theses, and Masters Projects
Muscle and hepatopancreas of blue crabs (Callinectes sapidus), collected from the Elizabeth River, Virginia, contained residues of polycyclic aromatic hydrocarbon (PAHs}, polychlorinated biphenyls (PCBs) and organochlorine pesticides. Analytical procedures involved dichloromethane extraction of lyophilized tissue, followed by molecular size and polarity-based purification of the extract. capillary gas chromatography with flame ionization detection and electrolytic conductivity detection was used for quantitation and tentative identification of the xenobiotic compounds. Mass spectrometry was used for confirmation of these identities. Contaminant concentrations were greater in hepatopancreas than in muscle in crabs from every site examined. Hepatopancreas PAH burdens were as high as 11 mg/kg …
Assessing Environmental Stress On The Loggerhead Sea Turtle (Caretta Caretta) In Virginia Waters, Sarah A. Bellmund
Assessing Environmental Stress On The Loggerhead Sea Turtle (Caretta Caretta) In Virginia Waters, Sarah A. Bellmund
Dissertations, Theses, and Masters Projects
No abstract provided.
Angiosperm Growth, Distribution, And Tissue Nitrogen Concentration In A Sewage-Impacted Marsh, Yorktown Creek, Virginia, Mark Steven Kowalski
Angiosperm Growth, Distribution, And Tissue Nitrogen Concentration In A Sewage-Impacted Marsh, Yorktown Creek, Virginia, Mark Steven Kowalski
Dissertations, Theses, and Masters Projects
No abstract provided.
The Effects Of Environmental Variables On The Heart Rate Of Invertebrates, Peter L. Defur
The Effects Of Environmental Variables On The Heart Rate Of Invertebrates, Peter L. Defur
Dissertations, Theses, and Masters Projects
No abstract provided.
Eggshell Thinning And Pesticide Residues In Ospreys From The Lower Chesapeake Bay, Jerry Waller Via
Eggshell Thinning And Pesticide Residues In Ospreys From The Lower Chesapeake Bay, Jerry Waller Via
Dissertations, Theses, and Masters Projects
No abstract provided.
The Reptiles Of Cherokee County, Kansas, Myron Alec Hurd
The Reptiles Of Cherokee County, Kansas, Myron Alec Hurd
Electronic Theses & Dissertations
Cherokee County has an area of 585 square miles. The greater part is covered with hydrophytes and mesophytes, but there are some Xerophytic areas. A large part of its area is covered with typical prairie grassland. Thickets of plum, sumac, persimmon, hawthorne, blackberry, and buck brush occur in pastures and wastelands. Along the streams may be found the elm-ask-oak assocations and other plants. Along the embankments may be found blackberry, sumac, and wild rose. Surrounding the ponds and marsh areas are rushes, reeds, button willows, and willows.
The mean annual temperature is 56 degrees fahrenheit. The three summer months average …