Escaping The Arrhenius Tyranny: Metabolic Compensation During Exposure To High Temperature In Daphnia, 2018 East Tennessee State University
Escaping The Arrhenius Tyranny: Metabolic Compensation During Exposure To High Temperature In Daphnia, Bret L. Coggins
Electronic Theses and Dissertations
Poikilothermic organisms experience trade-offs by differential physiological demands generated by temperature extremes. Many such organisms exhibit acclimatory effects, adjusting their metabolism and physiology to recently experienced temperatures. One such acclimatory effect is metabolic compensation, the deceleration of biological rates below Arrhenius expectations. Daphnia magna is eurythermal, and if acclimated to mildly stressful temperatures first, survives longer in lethal temperatures. This study examined the effect of ambient temperature (5°C-37°C) and acclimation history (lifetime at 10°C or 25°C) on the oxygen consumption rates of 8 genotypes of Daphnia with high or low acute temperature tolerance. There were decelerations ...
Using Remotely Piloted Aircraft And Infrared Technology To Detect And Monitor Greater Sage-Grouse, 2018 Utah State University
Using Remotely Piloted Aircraft And Infrared Technology To Detect And Monitor Greater Sage-Grouse, Thomas R. Thompson
All Graduate Theses and Dissertations
In wildlife management, using cutting edge technology and science to monitor greater sage-grouse (Centrocercus urophasianus; sage-grouse) populations, enables land managers to better assess the impact of their management decisions. Having precise counts of sage-grouse lek attendance, and specifically male lek attendance, is an important metric used to evaluate population status and response to conservation actions (Gifford et.al, 2013, Dahlgren et al., 2016). Leks are seasonal breeding sites where males perform a ritualistic courtship dance for females.
Our case study examined if a Remotely Piloted Aircraft (RPA) was effective in detecting, and counting, sage-grouse during the lek season (early March ...
Novel Treatments For Native Forb Restoration In The Great Basin, 2018 Utah State University
Novel Treatments For Native Forb Restoration In The Great Basin, Adam J. Fund
All Graduate Theses and Dissertations
Public land management agencies, conservation organizations, and landowners are interested in expanding the diversity of plant species used in rangeland restoration seedings. While the restoration of native grasses and shrubs in the Great Basin has become increasingly successful, restoration of native forbs continues to be problematic. In the Great Basin, soil water availability and soil fungal pathogens are thought to limit to restoration success. During the course of two years, we conducted two field experiments at three sites in the Great Basin that spanned a latitudinal gradient encompassing different precipitation and temperature patterns.
In the first experiment, we evaluated two ...
Foraging Behavior, Taxonomy, And Morphology Of Bees (Hymenoptera: Apoidea), With An Emphasis On Perdita (Hymenoptera: Andrenidae), Zachary M. Portman
All Graduate Theses and Dissertations
Bees are the most important pollinators of flowering plants and are necessary for pollinating both wild plants and many of the crops that produce the food we eat. There are many different species of bees, with about 20,000 species worldwide and 4,000 species in the United States. Even though bees are important pollinators, there is still much we do not know about how many species there are and their biology. In order to better understand the species and their biology, I performed three projects that help fill these gaps by reviewing the species of a poorly known bee ...
Assessment Of A Seedling-Based Approach To Aspen Restoration In The Intermountain West, 2018 Utah State University
Assessment Of A Seedling-Based Approach To Aspen Restoration In The Intermountain West, Alexander Addison Howe
All Graduate Theses and Dissertations
Quaking aspen (Populus tremuloides) is an important species ecologically and culturally in the western U.S., where it is one of the only broadleaf trees in the mostly conifer-dominated forests. Aspen management in the West has focused on regenerating existing stands vegetatively through root suckering, however this approach is restricted to locations where aspen currently exists and limits the genetic diversity of aspen populations. Planting nursery-grown aspen seedlings offers a potential method for overcoming these limitations, but it has received little attention in the U.S. Intermountain West (IW) to date. In order for this approach to be more broadly ...
Permission To Publish Agreement, Concepts In Animal Parasitology, 2018 University of Nebraska - Lincoln
Permission To Publish Agreement, Concepts In Animal Parasitology, University Of Nebraska-Lincoln
Concepts in Animal Parasitology Textbook
Blank Permission to Publish agreement form for authors of the Concepts in Animal Parasitology textbook/open educational resource.
Spatial Variation In Basal Resources And Trophic Position Of Selected Fishes Of The North-Central Gulf Of Mexico, 2018 The University of Southern Mississippi
Spatial Variation In Basal Resources And Trophic Position Of Selected Fishes Of The North-Central Gulf Of Mexico, Christopher Fleming
The North-central Gulf of Mexico is a complex hydrologic environment with freshwater influx that varies on spatial and temporal scales. Freshwater input exerts influence on the isotope values of organisms living in coastal ecosystems. The objectives of this study were to determine relationships between total length and isotope value, estimate basal resource usage and trophic position of target species from Mississippi Sound, reef, and pelagic environments, and identify differences and similarities in spatial patterns of collection. Muscle tissue samples were collected from October 2014 through September 2015. Stable isotope analysis identified a trophic gradient extending from nearshore to offshore, with ...
Modified Landscapes, 2018 University of Arkansas, Fayetteville
Modified Landscapes, Esther Nooner
Theses and Dissertations
Modified Landscapes is a body of work that reflects serious thought regarding Nature and its future. My personal experience and beliefs are at the core of why I believe this subject to be of great importance and why it will sustain many artists’ investigations for the time to come. The influences that informed this process are explored through experiences I had traveling, reading and exploring the photograph as a material object. The manipulation of the photograph is meant to question the beautiful, untouched scene and break the Romantic gaze that is historically tied to representations of Nature and insist upon ...
Evolutionary Conservation Of Midline Repulsion By Robo Family Receptors In Flies And Mice, 2018 University of Arkansas, Fayetteville
Evolutionary Conservation Of Midline Repulsion By Robo Family Receptors In Flies And Mice, Allison Loy
Biological Sciences Undergraduate Honors Theses
As the nervous system develops in animal embryos, neuronal axons are guided to their synaptic targets by extra cellular cues that signal through axon guidance receptors expressed on the surface of the axon. In animals with bilateral symmetry, one of the important decisions made by nearly every axon in the embryonic nervous system is whether to stay on its own side of the body, or to cross the midline and connect to cells on the opposite side. The Roundabout (Robo) family is an evolutionarily conserved group of axon guidance receptors that regulate midline crossing in a wide range of animal ...
Gulls, 2018 USDA, Wildlife Services
Gulls, Martin S. Lowney, Scott F. Beckerman, Scott C. Barras, Thomas W. Seamans
Wildlife Damage Management Technical Series
Abundant gull (Figure 1) populations in North America have led to a variety of conflicts with people. Gulls cause damage at aquaculture facilities and other properties, and often collide with aircraft. Their use of structures on and near water results in excessive amounts of bird droppings on boats and docks. Their presence near outdoor dining establishments, swimming beaches, and recreational sites can lead to negative interactions with people. Large amounts of gull fecal material pollutes water and beaches resulting in drinking water contamination and swim bans. A combination of dispersal techniques, exclusion and limited lethal control may reduce damage to ...
Diel Rhythmicity Found In Behavior But Not Biogenic Amine Levels In The Funnel-Web Spider Agelenopsis Pennsylvanica (Araneae, Agelenidae), 2018 East Tennessee State University
Diel Rhythmicity Found In Behavior But Not Biogenic Amine Levels In The Funnel-Web Spider Agelenopsis Pennsylvanica (Araneae, Agelenidae), Alexander E. Demarco
Electronic Theses and Dissertations
Quantifying individual differences in behavior and the extent that behavior is influenced by circadian control is of paramount importance in behavioral ecology. In addition, the proximate mechanisms underlying behavior are also critical in order to obtain a more complete picture of how behavior evolves. Biogenic amines (BAs) are simple nitrogenous compounds derived from amino acids and have been consistently and extensively linked to behavior. For this study, we analyzed temporal patterns of BAs in relation to the antipredator (boldness) and aggressive behavior in female Agelenopsis pennsylvanica, a funnel-web spider. Using HPLC-ED, we compared behavioral responses to temporal patterns of octopamine ...
Cryptic Diversity In Rhampholeon Boulengeri (Sauria: Chamaeleonidae), A Pygmy Chameleon From The Albertine Rift Biodiversity Hotspot, 2018 University of Texas at El Paso
Cryptic Diversity In Rhampholeon Boulengeri (Sauria: Chamaeleonidae), A Pygmy Chameleon From The Albertine Rift Biodiversity Hotspot, Daniel F. Hughes, Krystal A. Tolley, Mathias Behangana, Wilber Lukwago, Michele Menegon, J. J. Maximilian Dehling, Jan Stipala, Colin R. Tilbury, Arshad M. Khan, Chifundera Kusamba, Eli Greenbaum
Arshad M. Khan, Ph.D.
No abstract provided.
Comparative Study Of Photosynthesis Rates Between Native Red Maple And Invasive Norway Maple In The Eastern Deciduous Forest, Evan M. Bourtis, Lindsey R. Heckman
The Review: A Journal of Undergraduate Student Research
Invasive species, such as the Norway Maple, are often able to outcompete native species, such as the Red Maple by performing more efficiently in the environment compared to the native species. In this study, we examined if the Norway maple was able to outcompete the Red Maple in the Eastern Deciduous Forest because the Norway Maple had a higher rate of photosynthesis. The study found that the Norway Maple leaves had a slightly higher rate of carbon dioxide consumption than Red Maple leaves and that the Red Maple leaves had a higher rate of oxygen production compared to the Norway ...
Devonian Stromatoporoid Interactions At The Falls Of The Ohio State Park, Clarksville, Indiana, 2018 Bellarmine University
Devonian Stromatoporoid Interactions At The Falls Of The Ohio State Park, Clarksville, Indiana, Morgan Sierra Hall
Stromatoporoids are calcitic sponges that occurred in the fossil record from the Early Ordovician to Late Devonian period. These sponges interacted with other organisms, especially rugose and tabulate corals. Some corals appear to benefit from the rigidity of stromatoporoids in response to turbulent waters. Stromatoporoids and many corals went extinct during the Frasnian-Famennian crisis when paleoenvironmental parameters were shifting. Studying the relationships between these taxa may provide insight to their vulnerability during the extinction.
This research was performed at the Falls of the Ohio in Clarksville, Indiana. Organisms in the Coral Zone were studied using transect sampling. Each fossil along ...
Comparison Of Habitat And Water Quality In The Blue River's South And Salem Forks In Southern Indiana To Support Watershed Management, Erin Crone
A stream’s habitat and water quality are heavily influenced by land use and geology within its watershed. Pollutants and sediment loading from watershed drainage can make streams less habitable for certain species, reducing biodiversity. Watershed management strategies, such as the promotion of best management practices in agriculture, can help to combat stream degradation from watershed inputs. The upper Blue River in southern Indiana is a biodiversity hotspot but is experiencing degradation and biodiversity loss due to watershed inputs. This is exemplified by the disappearance of the eastern hellbender salamander, an indicator species, from this area. Fine sediment loading is ...
Chapter 18 - Large Mammals, 2018 Michigan Technological University
Chapter 18 - Large Mammals, Janice M. Glime
Bryophyte Ecology Volume 2: Bryological Interaction
Explore the contents of Bryophyte Ecology, Volume 2, Chapter 18 - Large Mammals by clicking the links above. For the Contents section of this ebook, as well as Volumes 1 through 5, please visit the Bryophyte Ecology Main Page.
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Ebook sponsored by Michigan Technological University and the International Association of Bryologists.
Genomic Insights Into The Mitochondria Of 11 Eastern North American Species Of Cladonia, 2018 University of Colorado, Boulder
Genomic Insights Into The Mitochondria Of 11 Eastern North American Species Of Cladonia, Laurel M. Brigham, Luis M. Allende, Benjamin R. Shipley, Kayla C. Boyd, Tanya J. Higgins, Nicholas Kelly, Carly R. Anderson-Stewart, Kyle Keepers, Cloe S. Pogoda, James C. Lendemer, Erin A. Tripp, Nolan C. Kane
University Libraries Open Access Fund Supported Publications
Cladonia is among the most species-rich genera of lichens globally. Species in this lineage, commonly referred to as reindeer lichens, are ecologically important in numerous regions worldwide. In some locations, species of Cladonia can comprise the dominant groundcover, and are a major food source for caribou and other mammals. Additionally, many species are known to produce substances with antimicrobial properties or other characteristics with potentially important medical applications. This exceptional morphological and ecological variation contrasts sharply with the limited molecular divergence often observed among species. As a new resource to facilitate ongoing and future studies of these important species, we ...
The Influence Of Avian Distributions On West Nile Virus Infection Rates, 2018 Carroll College
The Influence Of Avian Distributions On West Nile Virus Infection Rates, Katie Mchugh
Carroll College Student Undergraduate Research Festival
Evidence has shown that human infection rates for West Nile virus are largely dependent on viral amplification that occurs between competent avian host species and mosquito vectors. The threat of West Nile virus to humans is influenced by the diversity and competence of avian host species available to the mosquito vectors. This study used data collected through avian surveys in Montana to analyze the diversity and competence of avian species in those areas. These data were compared to existing GIS model predictions of avian diversity and avian viral competence in Montana to test the accuracy of the model. The GIS ...
From Outside To Online: Unanticipated Directions For Utah Master Naturalist, 2018 Utah State University
From Outside To Online: Unanticipated Directions For Utah Master Naturalist, Mark Larese-Casanova, Jennifer Perkins
Journal on Empowering Teaching Excellence
Utah Master Naturalist is an award-winning Utah State University Extension program that promotes stewardship of Utah’s natural world through place-based, experiential field courses across the state. Although successful in eliciting positive short- and long-term impacts, Utah Master Naturalist’s traditional five-day field courses were unavailable to many students and instructors due to constraints of time and location. This case study examines Utah Master Naturalist’s first hybrid course, Desert Explorations, and describes the positive results from our pilot study, how a hybrid course solves availability issues, and how field-based learning theories can be adapted to online education through careful ...
Scorpions Of The Horn Of Africa (Arachnida, Scorpiones). Part Xvi. Compsobuthus Maidensis Sp. N. (Buthidae) From Somaliland, František Kovařík
Compsobuthus maidensis sp. n. from Somaliland is described and fully complemented with color photos of specimens, as well as its habitat. Data on the occurrence of the genus Compsobuthus Vachon, 1949 in the Horn of Africa is summarized.