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Surveillance Of Culex And Aedes Mosquitoes In Lincoln, Lancaster County, Nebraska, William Noundou Feb 2020

Surveillance Of Culex And Aedes Mosquitoes In Lincoln, Lancaster County, Nebraska, William Noundou

Department of Entomology: Dissertations, Theses, and Student Research

In 2018, West Nile virus (WNV) was identified as the leading cause of mosquito-borne disease in the continental United States. In response to this very serious problem, the Lincoln-Lancaster County Public Health Department (LLCHD) reinforced their mosquito surveillance program, which constitutes one of the best available tools to fight against this serious threat to human health. The objectives of this study were to 1) expand knowledge of the activity and relative abundance of mosquito communities in understudied areas and 2) evaluate differences in mosquito communities by urban and rural location, especially focusing on known vector species. A total of 6 …

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Surveillance Of Root-Associated Microbiome Of Oxalogenic Colocasia Esculenta (Linn) Plant Reveals Distinct Bacterial Species Diversity, Mangesh Vasant Suryavanshi, Nidhi Bharti, Shrikant Subhash Bhute, Vipin Chembili, Pooja Chavan, Yogesh Shripad Shouche Feb 2020

Surveillance Of Root-Associated Microbiome Of Oxalogenic Colocasia Esculenta (Linn) Plant Reveals Distinct Bacterial Species Diversity, Mangesh Vasant Suryavanshi, Nidhi Bharti, Shrikant Subhash Bhute, Vipin Chembili, Pooja Chavan, Yogesh Shripad Shouche

Life Sciences Faculty Research

Oxalic acids are widely distributed in tissues of various plants that can exacerbate the effect on other plant-grazing animals including humans. Bacterial communities had been demonstrated to specify with the rhizosphere of host type and which can differ with oxalogenic plant. The present study has been conducted with the primary objective of understanding the root-associated microbial communities in Colocasia esculenta, an oxalogenic plant and to recognize possible bacterial species that present the potential of having their capability to metabolize oxalates. Of the 852 sequences obtained, 311 corresponded to rhizosphere (S), 250 to rhizoplane (P) and 291 were from non-rhizospheric (NS) …

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Biogeographic Patterns In Members Of Globally Distributed And Dominant Taxa Found In Port Microbial Communities., Ryan B Ghannam, Laura G. Schaerer, Timothy M. Butler, Stephen M Techtmann Jan 2020

Biogeographic Patterns In Members Of Globally Distributed And Dominant Taxa Found In Port Microbial Communities., Ryan B Ghannam, Laura G. Schaerer, Timothy M. Butler, Stephen M Techtmann

Michigan Tech Publications, Part 1

We conducted a global characterization of the microbial communities of shipping ports to serve as a novel system to investigate microbial biogeography. The community structures of port microbes from marine and freshwater habitats house relatively similar phyla, despite spanning large spatial scales. As part of this project, we collected 1,218 surface water samples from 604 locations across eight countries and three continents to catalogue a total of 20 shipping ports distributed across the East and West Coast of the United States, Europe, and Asia to represent the largest study of port-associated microbial communities to date. Here, we demonstrated the utility …

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Suicide And Culture, Mehmet Eskin Jan 2020

Suicide And Culture, Mehmet Eskin

BAU Journal - Health and Wellbeing

The rates of suicidal ideation, attempts and mortality present a large intersocietal variation. This variation is usually attributed to the role of culture, but the issue is still poorly understood. How does culture contribute to the intersocietal or cross-cultural variation of suicidal behavior? How culture might be involved in the onset, maintenance and aggravation of suicidal tendencies? In this paper, I will be discussing possible mechanisms of culture for the onset, maintenance and aggravation of suicidal propensities. Specifically, I will be examining the role of religion, individualistic-collectivistic value orientations, self-construal and survival versus self-expression values for their relevance to suicidal …

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Early Goose Arrival Increases Soil Nitrogen Availability More Than An Advancing Spring In Coastal Western Alaska, Ryan T. Choi, Karen H. Beard, Katharine C. Kelsey, A. Joshua Leffler, Joel A. Schmutz, Jeffrey M. Welker Jan 2020

Early Goose Arrival Increases Soil Nitrogen Availability More Than An Advancing Spring In Coastal Western Alaska, Ryan T. Choi, Karen H. Beard, Katharine C. Kelsey, A. Joshua Leffler, Joel A. Schmutz, Jeffrey M. Welker

Ecology Center Publications

An understudied aspect of climate change-induced phenological mismatch is its effect on ecosystem functioning, such as nitrogen (N) cycling. Migratory herbivore arrival time may alter N inputs and plant–herbivore feedbacks, whereas earlier springs are predicted to increase N cycling rates through warmer temperatures. However, the relative importance of these shifts in timing and how they interact to affect N cycling are largely unknown. We conducted a 3-year factorial experiment in coastal western Alaska that simulated different timings of Pacific black brant (Branta bernicla nigricans) arrival (3 weeks early, typical, 3 weeks late, or no-grazing) and the growing season …

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Volume 4, Chapter 2-1: Stream Physical Factors Affecting Bryophyte Distribution, Janice M. Glime Jan 2020

Volume 4, Chapter 2-1: Stream Physical Factors Affecting Bryophyte Distribution, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

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Comparing Landscape Suitability And Permeability With And Without Migration Data: Theinfluence Of Species Movement Behavior, Azita Rezvani, Shima Malakoutikhah, Sima Fakheran, Alireza Soffianian, Mahmoud-Reza Hemami, Josef Senn Jan 2020

Comparing Landscape Suitability And Permeability With And Without Migration Data: Theinfluence Of Species Movement Behavior, Azita Rezvani, Shima Malakoutikhah, Sima Fakheran, Alireza Soffianian, Mahmoud-Reza Hemami, Josef Senn

Turkish Journal of Zoology

Maintaining landscape connectivity through identifying movement corridors is the most recommended conservation strategy to reduce the negative impacts of habitat loss and isolation. The basis of most connectivity modelling approaches for modelling corridors is that species choose movement pathways based on the same criteria they used to choose habitats. However, species behave differently in using landscape elements for moving than for selecting habitat. In other words, suitability of a given landscape feature may differ between moving and habitat use stages. In this study, we evaluated how the availability of migration occurrence points for wild sheep (Ovis orientalis) could affect the …

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Rotifera Of Various Aquatic Environments Of Costa Rica In Reference To Central American Rotifer Fauna, Natalia Kuczynska-Kippen, Jolanta Ejsmont-Karabin Jan 2020

Rotifera Of Various Aquatic Environments Of Costa Rica In Reference To Central American Rotifer Fauna, Natalia Kuczynska-Kippen, Jolanta Ejsmont-Karabin

Turkish Journal of Zoology

Detailed surveys on rarely examined aquatic ecosystems often lead to the discovery of new species of high conservation value. This study directed towards the recognition of a variety of aquatic environments in Costa Rica (40 habitats, including lakes, wetlands, and small aquatic systems, e.g., ponds, ditches, puddles, tree holes, and bromeliads) established the presence of 105 species of Monogononta representing 33 genera. In total, 91 species and 19 genera were found to be new for Costa Rica, including 29 species recorded for the first time in Central America (e.g., Ascomorpha klementi, Beauchampia crucigera, Brachionus mirabilis, Cephalodella panarista, Filinia saltator, Horaella …

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The Effect Of Grazing By Geese, Goats, And Fallow Deer On Soil Mites (Acari), Sylwiusz Pacek, Anna Seniczak, Radomir Graczyk, Boguslaw Chachaj, Barbara Waldon-Rudzionek Jan 2020

The Effect Of Grazing By Geese, Goats, And Fallow Deer On Soil Mites (Acari), Sylwiusz Pacek, Anna Seniczak, Radomir Graczyk, Boguslaw Chachaj, Barbara Waldon-Rudzionek

Turkish Journal of Zoology

The study investigated the effects of grazing by geese, goats, and fallow deer on soil mites. It included a total of 360 samples collected in the spring, summer, and autumn of 2016 and 2017 in north-central Poland. Study plots were situated in three pastures grazed by geese, goats, and fallow deer, and three meadows near the pastures served as controls. All study plots were fenced. In total 22,561 mites (Acari) were obtained, including 15,641 Oribatida (69.3%), 4926 Mesostigmata (21.8%), and 1994 other mites (8.9%). Only the abundance of Oribatida (therefore, also total Acari) differed significantly in pastures grazed by different …

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Functional Ecology And Ecosystem Services Of Urban Trees, Milos Simovic Jan 2020

Functional Ecology And Ecosystem Services Of Urban Trees, Milos Simovic

ETD Archive

Compared to their natural counterparts, trees in urban ecosystems experience distinctive environmental conditions which can be both beneficial and harmful to tree functions and fitness. Thus, the morphological, phenological, and physiological functions of trees in urban ecosystems can be unique and might not be predictable from patterns identified in natural forests where most research on tree ecology has occurred. To better understand how different tree species contribute to ecosystem services in urban environments, we estimated a number of key performance metrics and functional traits for species commonly planted in urban areas. Between April of 2017 and December of 2019, we …

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The Birds And The Trees, Branden Lawson Jan 2020

The Birds And The Trees, Branden Lawson

McNair Scholars

Modification of natural habitats used by native organisms is occurring more rapidly due to the increasing human population. American Robins (Turdus migratorius) are common in urban and non-urban areas and can serve as useful indicators of human activities' effects on wildlife. To create an urban environment, the removal of trees from non-urban habitats is necessary but causes radical alteration of the presence of native avifauna. This study, therefore, examined the influence of tree cover within urban and non-urban sites and how trees' characteristics affected the survival rate of American Robin chicks. Data collection occurred during the 2019 breeding …

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Land Use Influences Along Elevation Gradient On Macroinvertebrate Communities, Brittany Sprout Jan 2020

Land Use Influences Along Elevation Gradient On Macroinvertebrate Communities, Brittany Sprout

Electronic Theses and Dissertations

Land use activities have caused disturbances that affect the quality of freshwater ecosystems worldwide. How the influences of land use along an environmental gradient and the associated environmental variables that may influence stream diversity and function is unclear. We address these issues by studying biodiversity, abundance, and functional diversity of macroinvertebrates across different land types along a gradient in Colorado, USA. We also address how diversity may change along an elevation gradient by analyzing previously published macroinvertebrate research. We found evidence that land use and disturbance are stronger explanations of changes in macroinvertebrate communities, rather than elevation. Functional trait patterns …

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A Spatiotemporal Assessment Of Dietary Partitioning Between Color Morphs Of A Terrestrial Salamander, Maggie M. Hantak, Kyle M. Brooks, Cari-Ann M. Hickerson, Carl D. Anthony, Shawn R. Kuchta Jan 2020

A Spatiotemporal Assessment Of Dietary Partitioning Between Color Morphs Of A Terrestrial Salamander, Maggie M. Hantak, Kyle M. Brooks, Cari-Ann M. Hickerson, Carl D. Anthony, Shawn R. Kuchta

2020 Faculty Bibliography

When color pattern variation is co-adapted with other biological features, distinct color morphs may be separated along divergent niche axes, and data on niche partitioning can provide insight into how distinct color morphs are maintained over spatiotemporal scales. The Eastern Red-backed Salamander, Plethodon cinereus, contains two common color morphs (striped and unstriped) that differ along several trait axes in addition to coloration. Previous studies from a single population have suggested that dietary composition represents an important axis of ecological differentiation between morphs of P. cinereus. To determine if morphs partition prey resources over space and time, we collected stomach contents …

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The First Global Deep-Sea Stable Isotope Assessment Reveals The Unique Trophic Ecology Of Vampire Squid Vampyroteuthis Infernalis (Cephalopoda), A. V. Golikov, F. R. Ceia, R. M. Sabirov, J. D. Ablett, Ian G. Gleadall, Gudmundur Gudmundsson, Henk-Jan T. Hoving, Heather L. Judkins Jan 2020

The First Global Deep-Sea Stable Isotope Assessment Reveals The Unique Trophic Ecology Of Vampire Squid Vampyroteuthis Infernalis (Cephalopoda), A. V. Golikov, F. R. Ceia, R. M. Sabirov, J. D. Ablett, Ian G. Gleadall, Gudmundur Gudmundsson, Henk-Jan T. Hoving, Heather L. Judkins

USF St. Petersburg Campus Faculty Publications

Vampyroteuthis infernalis Chun, 1903, is a widely distributed deepwater cephalopod with unique morphology and phylogenetic position. We assessed its habitat and trophic ecology on a global scale via stable isotope analyses of a unique collection of beaks from 104 specimens from the Atlantic, Pacific and Indian Oceans. Cephalopods typically are active predators occupying a high trophic level (TL) and exhibit an ontogenetic increase in δ15N and TL. Our results, presenting the first global comparison for a deep-sea invertebrate, demonstrate that V. infernalis has an ontogenetic decrease in δ15N and TL, coupled with niche broadening. Juveniles are mobile zooplanktivores, while larger …

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First Genome Sequence Of The Gunnison’S Prairie Dog (Cynomys Gunnisoni), A Keystone Species And Player In The Transmission Of Sylvatic Plague, Mirian T. N. Tsuchiya, Rebecca B. Dikow, Loren Cassin-Sackett Jan 2020

First Genome Sequence Of The Gunnison’S Prairie Dog (Cynomys Gunnisoni), A Keystone Species And Player In The Transmission Of Sylvatic Plague, Mirian T. N. Tsuchiya, Rebecca B. Dikow, Loren Cassin-Sackett

Integrative Biology Faculty and Staff Publications

Prairie dogs (genus Cynomys) are a charismatic symbol of the American West. Their large social aggregations and complex vocalizations have been the subject of scientific and popular interest for decades. A large body of literature has documented their role as keystone species of western North America’s grasslands: They generate habitat for other vertebrates, increase nutrient availability for plants, and act as a food source for mammalian, squamate, and avian predators. An additional keystone role lies in their extreme susceptibility to sylvatic plague (caused by Yersinia pestis), which results in periodic population extinctions, thereby generating spatiotemporal heterogeneity in both …

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Mechanistic Studies To Understand The Role Of Human Gut Microbiota In Colonization Resistance And Gut Health, Sudeep Ghimire Jan 2020

Mechanistic Studies To Understand The Role Of Human Gut Microbiota In Colonization Resistance And Gut Health, Sudeep Ghimire

Electronic Theses and Dissertations

Human gut microbiota is comprised of thousands of species which fall into two major categories or “enterotypes” based on dominating bacteria: “Bacteroides” and “Prevotella”. Bacteroides enterotype dominates the microbiota of the western population because of a high protein and fat diet, whereas Prevotella enterotype is dominate in the gut of the eastern population because of a high carbohydrate diet. While most of the microbiota studies focused on the Bacteroides enterotype using both metagenomics and culturomics, Prevotella enterotype is understudied, especially in the field of culturomics. The structure of the Prevotella dominated gut microbiome is revealed by …

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Selection Of Forage And Avoidance Of Predation Risk By Partially Migratory Mule Deer, Collin Jeffrey Peterson Jan 2020

Selection Of Forage And Avoidance Of Predation Risk By Partially Migratory Mule Deer, Collin Jeffrey Peterson

Graduate Student Theses, Dissertations, & Professional Papers

Migration by ungulates has traditionally been thought of as a strategy that increases access to forage quality or reduces exposure to risk of predation, but the benefits of migration may be waning globally. In partially migratory populations, the persistence of both migrant and resident strategies is an intriguing ecological phenomenon, because migrants and residents often face contrasting fitness consequences. Partial migration is common in mule deer (Odocoileus hemionus), a species that has experienced widespread declines across the western United States during recent decades. Mule deer seldom switch between migratory strategies throughout their lifetime, which may make them less resilient to …

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A Global Database Of Soil Nematode Abundance And Functional Group Composition, Johan Van Den Hoogen, Stefan Geisen, Thomas W. Crowther, Peter Mullin, Many Co-Authors Jan 2020

A Global Database Of Soil Nematode Abundance And Functional Group Composition, Johan Van Den Hoogen, Stefan Geisen, Thomas W. Crowther, Peter Mullin, Many Co-Authors

Department of Plant Pathology: Faculty Publications

As the most abundant animals on earth, nematodes are a dominant component of the soil community. They play critical roles in regulating biogeochemical cycles and vegetation dynamics within and across landscapes and are an indicator of soil biological activity. Here, we present a comprehensive global dataset of soil nematode abundance and functional group composition. This dataset includes 6,825 georeferenced soil samples from all continents and biomes. For geospatial mapping purposes these samples are aggregated into 1,933 unique 1-km pixels, each of which is linked to 73 global environmental covariate data layers. Altogether, this dataset can help to gain insight into …

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Is Context Dependency Imperative To Understanding The Impacts Of Invasive Plants?, Brendan B. Haile Jan 2020

Is Context Dependency Imperative To Understanding The Impacts Of Invasive Plants?, Brendan B. Haile

Masters Theses

Introduced exotic species have a tendency to become invasive and impact local biological communities. Invasions often impact community attributes such as cover and species richness, but these factors may also regulate patterns of invasion. In such cases, impacts may be dependent on the invasion context. We used data from the Buell-Small Succession Study, a long-term permanent plot study in the piedmont region of New Jersey, to document context dependency in invasion. To do this, we analyzed the factors that affected the colonization and growth of four invasive species, Alliaria petiolata, Lonicera japonica, Microstegium vimineum and Rosa multiflora, as well …

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Use Of Multiple Stream Temperature Logger Models Can Alter Conclusions, Robin M. Rotman, Joanna B. Whittier, Jacob T. Westhoff, Craig P. Paukert Jan 2020

Use Of Multiple Stream Temperature Logger Models Can Alter Conclusions, Robin M. Rotman, Joanna B. Whittier, Jacob T. Westhoff, Craig P. Paukert

Faculty Publications

Remote temperature loggers are often used to measure water temperatures for ecological studies and by regulatory agencies to determine whether water quality standards are being maintained. Equipment specifications are often given a cursory review in the methods; however, the effect of temperature logger model is rarely addressed in the discussion. In a laboratory environment, we compared measurements from three models of temperature loggers at 5 to 40 °C to better understand the utility of these devices. Mean water temperatures recorded by logger models differed statistically even for those with similar accuracy specifications, but were still within manufacturer accuracy specifications. Maximum …

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A Comparative Spatial And Climate Analysis Of Human Granulocytic Anaplasmosis And Human Babesiosis In New York State (2013-2018), Collin J. O'Connor Jan 2020

A Comparative Spatial And Climate Analysis Of Human Granulocytic Anaplasmosis And Human Babesiosis In New York State (2013-2018), Collin J. O'Connor

Legacy Theses & Dissertations (2009 - 2024)

Human granulocytic anaplasmosis (HGA) and human babesiosis are tick-borne diseases spread by Ixodes scapularis (the blacklegged or deer tick) and are the result of infection with Anaplasma phagocytophilum and Babesia microti, respectively. In New York State (NYS), incidence rates of these diseases increased concordantly until around 2013, when rates of HGA began to increase more rapidly than human babesiosis, and the spatial extent of the diseases diverged. Surveillance data of tick-borne pathogens (2007 to 2018) and reported human cases of HGA (n=4,297) and human babesiosis (n=2,986) (2013 to 2018) from the New York State Department of Health (NYSDOH) showed a …

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Spatio-Temporal Dynamic Of Submerged Aquatic Macrophytes In Lake Sapanca, Sezgi̇ Ersoy Yildiz, Aysu Güreşen, Yelda Aktan Turan Jan 2020

Spatio-Temporal Dynamic Of Submerged Aquatic Macrophytes In Lake Sapanca, Sezgi̇ Ersoy Yildiz, Aysu Güreşen, Yelda Aktan Turan

Turkish Journal of Botany

Aquatic macrophytes are one of the key components of freshwater ecosystems and contribute to ecosystem functioning and environmental sustainability. They are assumed to be an ideal biomonitoring tool in long-term monitoring programs implemented by the EU Water Framework Directive due to their sensitivity to environmental factors. Therefore, this study focuses on the evaluation of the ecological status in Lake Sapanca using macrophyte composition and abundance in order to make future predictions on the health of aquatic ecosystems and to form effective management. Submerged macrophyte assemblages related to environmental parameters were investigated from February to November of 2017. A total of …

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Deciphering The Past To Inform The Future: Preparing For The Next (“Really Big”) Extreme Event, Debra Pc Peters, N Dylan Burruss, Gregory S. Okin, Jerry L. Hatfield, Stacey Lp Scroggs, Haitao Huang, Colby W. Brungard, Jin Yao Jan 2020

Deciphering The Past To Inform The Future: Preparing For The Next (“Really Big”) Extreme Event, Debra Pc Peters, N Dylan Burruss, Gregory S. Okin, Jerry L. Hatfield, Stacey Lp Scroggs, Haitao Huang, Colby W. Brungard, Jin Yao

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Climate change will bring more extremes in temperature and precipitation that will impact productivity and ecosystem resilience throughout agroecosystems worldwide. Historical events can be used to identify drivers that impact future events. A catastrophic drought in the US in the 1930s resulted in an abrupt boundary between areas severely impacted by the Dust Bowl and areas that were less severely affected. Historical primary production data confirmed the location of this boundary at the border between two states (Nebraska and Iowa). Local drivers of weather and soils explained production responses across the boundary before and after the drought (1926–1948). During the …

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The Effects Of Prescribed Burning And Microhabitat Type On Ant (Formicidae) Functional Groups And A Survey Of Ants In The Dr. Howard Reynolds Nature Area (A Mixed Grass Prairie), Ashley N. Durr Jan 2020

The Effects Of Prescribed Burning And Microhabitat Type On Ant (Formicidae) Functional Groups And A Survey Of Ants In The Dr. Howard Reynolds Nature Area (A Mixed Grass Prairie), Ashley N. Durr

Master's Theses or Doctor of Nursing Practice

This project sought to understand how prescribed burning and microhabitat type impacts Kansas ant functional groups and also whether prescribed burning in different microhabitat types altered the burn’s impact on those functional groups. The Dr. Howard Reynolds Nature Trail, located in Hays, Kansas, was burned in the spring of 2019. The area consists of 2 distinct habitat types: a dry, mixed-grass dominated uphill area and a moist, densely vegetated downhill area. Pitfall trapping was conducted during the summers of the year prior to the burn (2018) and the year following the burn (2019). 15 pitfall traps were spread across each …

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Abundance And Occurrence Of Common Bottlenose Dolphins (Tursiops Truncatus) In Three Estuaries Of The Northwestern Gulf Of Mexico, Errol Ronje, Heidi Whitehead, Kevin Barry, Sarah Piwetz, Juliane Struve, Vincent Lecours, Lance Garrison, Randall S. Wells, Keith D. Mullin Jan 2020

Abundance And Occurrence Of Common Bottlenose Dolphins (Tursiops Truncatus) In Three Estuaries Of The Northwestern Gulf Of Mexico, Errol Ronje, Heidi Whitehead, Kevin Barry, Sarah Piwetz, Juliane Struve, Vincent Lecours, Lance Garrison, Randall S. Wells, Keith D. Mullin

Gulf and Caribbean Research

Current abundance estimates for populations of common bottlenose dolphins (Tursiops truncatus, Montagu, 1821) in bays, sounds, and estuaries are lacking throughout most of the northwestern Gulf of Mexico, including areas of Texas and western Louisiana. To address this issue, we conducted 92 small-boat photographic identification surveys covering ~2000 km2 and comprising ~11,000 km of track-line in winter and summer seasons in West Bay, TX (2014 – 2015, n = 25), the Galveston Bay, TX system (2016, n = 50), Sabine Lake, TX (2017, n = 17), and adjacent coastal waters. Individual dolphin encounter histories were constrained by …

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Correlates Of Bird Collisions With Buildings Across Three North American Countries, Jared A. Elmore, Stephen B. Hager, Bradley J. Cosentino, Nastasha Hagemeyer, Eric Walters, Scott R. Loss, Et Al. Jan 2020

Correlates Of Bird Collisions With Buildings Across Three North American Countries, Jared A. Elmore, Stephen B. Hager, Bradley J. Cosentino, Nastasha Hagemeyer, Eric Walters, Scott R. Loss, Et Al.

Biological Sciences Faculty Publications

Collisions with buildings cause up to 1 billion bird fatalities annually in North America. Bird-building collisions have recently received increased conservation, research, and policy attention. However, efforts to reduce collisions would benefit from studies conducted at large spatial scales across multiple study sites, with standardized methods, and with consideration of species- and life history-related variation and correlates of collisions. We addressed these research needs with a coordinated data collection effort at 40 sites across North America. We estimated collision vulnerability for 40 bird species by accounting for their North American population abundance, distribution overlap with study sites, and sampling effort. …

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Food Web Effects Of Lake Trout (Salvelinus Namaycush) Invasion In Northwestern Montana, Charles Wainright Jan 2020

Food Web Effects Of Lake Trout (Salvelinus Namaycush) Invasion In Northwestern Montana, Charles Wainright

Graduate Student Theses, Dissertations, & Professional Papers

Around the turn of the 20th century, lake trout (Salvelinus namaycush) were widely introduced in several lakes and reservoirs outside their native range in western North America. Since then, lake trout have become problematic in many lakes where they were introduced, causing significant declines in popular sport fishes and native species, most notably federally protected bull trout (Salvelinus confluentus). Despite evidence that invasive fish can cause cascading trophic effects in aquatic communities, the impacts of lake trout introduction / invasion on aquatic food webs remain poorly understood. Moreover, native fish restoration programs tend to focus on suppression …

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Comparative Studies On The Polymorphism And Copy Number Variation Of Mtssu Rdna In Ciliates (Protista, Ciliophora): Implications For Phylogenetic, Environmental, And Ecological Research, Yurui Wang, Yaohan Jiang, Yongqiang Liu, Yuan Li, Laura A. Katz, Feng Gao, Ying Yan Jan 2020

Comparative Studies On The Polymorphism And Copy Number Variation Of Mtssu Rdna In Ciliates (Protista, Ciliophora): Implications For Phylogenetic, Environmental, And Ecological Research, Yurui Wang, Yaohan Jiang, Yongqiang Liu, Yuan Li, Laura A. Katz, Feng Gao, Ying Yan

Biological Sciences: Faculty Publications

No abstract provided.

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Temperature Effects On Moose (Alces Alces) Activity Patterns In Isle Royale National Park, Isabella C. Evavold Jan 2020

Temperature Effects On Moose (Alces Alces) Activity Patterns In Isle Royale National Park, Isabella C. Evavold

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Moose (Alces alces) in Isle Royale National Park impact the ecosystem by browsing tree species and serving as the primary food source for wolves. As a heat-sensitive species, moose are susceptible to the impacts of climate change in the southern extent of their range which includes Isle Royale. Understanding how temperature impacts moose behavior is valuable and can be used to predict how moose may respond to changing temperature in the future. GPS enabled radio-collars with three-axis accelerometers were used to collect one year of temperature and activity data from 6 cow moose in Isle Royale National Park. …

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Diet Of A Recently Reintroduced River Otter (Lontra Canadensis) Population In Taos County, New Mexico, Gabriela Alexandra Wolf-Gonzalez Jan 2020

Diet Of A Recently Reintroduced River Otter (Lontra Canadensis) Population In Taos County, New Mexico, Gabriela Alexandra Wolf-Gonzalez

Theses and Dissertations--Forestry and Natural Resources

North American river otters (Lontra canadensis), native to every U.S. state and Canada, experienced extensive population decreases and range reduction until the mid-20th century as a result of overexploitation and habitat loss during European colonization. The last known river otter in New Mexico was killed on the Gila River in 1953, although unverified reports continued thru 2008. After a nearly 60-year absence from New Mexico, 33 adult river otters were reintroduced to the Rio Pueblo de Taos in the northern part of the state between 2008-2010; however, they were not subsequently monitored or studied. I characterized diet of …

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