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Full-Text Articles in Life Sciences
Spatiotemporal Partitioning Of Mammalian Mesopredators In Response To Drought And Urbanization In California's Central Valley, Chad W. Moura
Spatiotemporal Partitioning Of Mammalian Mesopredators In Response To Drought And Urbanization In California's Central Valley, Chad W. Moura
Cal Poly Humboldt theses and projects
Mammalian mesopredators commonly associated with human dominated landscapes often exhibit generalist diets, behavioral plasticity, and relatively high reproductive rates. Because of this wide range of adaptive traits, ecologists have been speculative of what conditions may drive species to change their activity and behavior to avoid or mitigate against resource competition, intraguild predation, and human disturbance. I investigated a community of common mesopredators within the Sacramento Metropolitan Area of California’s Central Valley to address whether species are spatially and/or temporally partitioning due to a defacto apex predator, coyotes (Canis latrans), and humans alongside large landscape altering disturbances: urbanization and drought. I …
Coping With Drought In Beef Cattle Production: Innovation Through Optimal Warm-Season Forage Systems, Katelynn Elizabeth Zechiel
Coping With Drought In Beef Cattle Production: Innovation Through Optimal Warm-Season Forage Systems, Katelynn Elizabeth Zechiel
Masters Theses
Drought conditions have had detrimental effects on beef cattle production in the southeastern states where forages are the primary source of feed for livestock. Many southeastern states lie within the fescue-belt, where tall fescue is the predominant livestock forage. Tall fescue is a cool-season (CS) grass that thrives in the cooler temperatures of spring and fall, becoming semi-dormant during peak summer temperatures and again in winter. Conversely, warm-season (WS) forage species increase in production during the summer months and exhibit drought tolerant qualities, making them a viable summer forage option to complement tall fescue for beef cattle producers. The primary …
Transcriptome Analysis Of Drought Induced Stress In Chenopodium Quinoa, Joshua Arthur Raney
Transcriptome Analysis Of Drought Induced Stress In Chenopodium Quinoa, Joshua Arthur Raney
Theses and Dissertations
RNA-seq transcriptome analysis of Chenopodium quinoa at different water treatment levels was conducted in a greenhouse study using four water treatments (field capacity to drought) on a valley ecotype quinoa (variety Ingapirca) and an Altiplano Salares ecotype quinoa (variety Ollague). Physiological results support the earlier findings that the Salares ecotypes display greater tolerance to drought-like stress conditions than the valley ecotypes (as determined by growth rate, photosynthetic rate, stomatal conductance, and stem water potential). cDNA libraries from root tissue sample for each treatment x variety combination were sequenced using Illumina Hi-Seq technology in an RNA-seq experiment. De novo assembly of …
The Effects Of Drought On The Abundance Of The Blue Crab, Callinectes Sapidus, In The Ace Basin Nerr In South Carolina, Kirk Parmenter
The Effects Of Drought On The Abundance Of The Blue Crab, Callinectes Sapidus, In The Ace Basin Nerr In South Carolina, Kirk Parmenter
All Dissertations
Blue crabs make up one of the most important commercial fisheries in the U.S. but there has been some concern over the health of blue crab populations due to large declines in landings seen in recent years. There is a significant positive correlation between river discharge and commercial landings suggesting that drought may be to blame for the recent decline in crab numbers. The work I completed for my dissertation tested multiple hypotheses examining the link between decreasing freshwater discharge, the subsequent rise in salinity, and the abundance of blue crabs in the ACE Basin National Estuarine Research Reserve.
To …