Nest-Site Selection Of Golden Eagles And Ferruginous Hawks And Diet Composition Of Sensitive Raptor Species Using Metabarcoding Analysis In The Uinta Basin And Ashley National Forest, Ut, Usa, 2019 Utah State University
Nest-Site Selection Of Golden Eagles And Ferruginous Hawks And Diet Composition Of Sensitive Raptor Species Using Metabarcoding Analysis In The Uinta Basin And Ashley National Forest, Ut, Usa, Dylan J. Hopkins
All Graduate Theses and Dissertations
Development and climate change in the sagebrush habitats are causing population declines of North American hawks and eagles. For these species, understanding the landscape features that are preferred for nesting and the prey they consume in sagebrush habitats are important in developing conservation plans. Specifically, we know little of the preferred nest-sites and diet of Ferruginous Hawks (Buteo regalis) and Golden Eagles (Aquila chrysaetos) many locales. In our study, we determined the landscape characteristics associated with nest sites for these two raptor species in the Uintah Basin, UT to predict where nests may occur in our study area. We found ...
Ecosystem Functioning Of Great Salt Lake Wetlands, 2019 Utah State University
Ecosystem Functioning Of Great Salt Lake Wetlands, Maya Cassidy Pendleton
All Graduate Theses and Dissertations
The Great Salt Lake (GSL) wetlands account for ~75% of all Utah wetlands and provide not only critical habitat for millions of migratory birds, but also provide valuable ecosystem functions and services as well as economic benefits to Utahns. However, these wetlands are facing an aggressive invader, Phragmites australis, that has spreading across the GSL wetlands and replacing native wetland habitats. Wetland managers have spent countless resources and time trying to control the spread of P. australis and restore GSL wetlands. However, we do not fully understand how these wetlands functions and services are being altered with this habitat homogenization ...
Ecology Of Phragmites Australis And Responses To Tidal Restoration, 2019 College of William and Mary
Ecology Of Phragmites Australis And Responses To Tidal Restoration, Randolph Chambers, Laura A. Meyerson, Kimberly L. Dibble
Tidal Marsh Restoration provides the scientific foundation and practical guidance necessary for coastal zone stewards to initiate salt marsh tidal restoration programs. The book compiles, synthesizes, and interprets the current state of knowledge on the science and practice of salt marsh restoration, bringing together leaders across a range of disciplines in the sciences (hydrology, soils, vegetation, zoology), engineering (hydraulics, modeling), and public policy, with coastal managers who offer an abundance of practical insight and guidance on the development of programs.
The book is an essential work for managers, planners, regulators, environmental and engineering consultants, and others engaged in planning, designing ...
Plasticity In The Human Gut Microbiome Defies Evolutionary Constraints, 2019 University of Minnesota
Plasticity In The Human Gut Microbiome Defies Evolutionary Constraints, Andres Gomez, Ashok Kumar Sharma, Elizabeth K. Mallott, Klara J. Petrzelkova, Carolyn A. Jost Robinson, Carl J. Yeoman, Franck Carbonero, Barbora Pafco, Jessica M. Rothman, Alexander Ulanov, Klara Vickova, Katherine R. Amato, Stephanie L. Schnorr, Nathaniel J. Dominy, David Modry, Angelique Todd, Manolito Torralba, Karen E. Nelson, Michael B. Burns, Ran Blekhman, Melissa Remis, Rebecca M. Stumpf, Brenda A. Wilson, H. Rex Gaskins, Paul A. Garber, Bryan A. White, Steven R. Leigh
Anthropology Faculty Publications
The gut microbiome of primates, including humans, is reported to closely follow host evolutionary history, with gut microbiome composition being specific to the genetic background of its primate host. However, the comparative models used to date have mainly included a limited set of closely related primates. To further understand the forces that shape the primate gut microbiome, with reference to human populations, we expanded the comparative analysis of variation among gut microbiome compositions and their primate hosts, including 9 different primate species and 4 human groups characterized by a diverse set of subsistence patterns (n = 448 samples). The results show ...
Solar Eclipse Has Little Discernible Effect On Bat Activity, 2019 University of North Georgia
Solar Eclipse Has Little Discernible Effect On Bat Activity, Michael J. Bender, Sara Robertson
Georgia Journal of Science
N/A - Research Note
Persitence And Turnover In Desert Plant Communities During A 37-Yr Period Of Land Use And Climate Change, 2019 University of Nevada, Las Vegas
Persitence And Turnover In Desert Plant Communities During A 37-Yr Period Of Land Use And Climate Change, Scott R. Abella, Ross J. Guida, Chris L. Roberts, Carrie M. Norman, James S. Holland
Life Sciences Faculty Publications
Understanding long‐term changes in ecological communities during global change is a priority for 21st‐century ecology. Deserts, already at climatic extremes, are of unique interest because they are projected to be ecosystems most responsive to global change. Within a 500‐km2 landscape in the Mojave Desert, USA, we measured perennial plant communities at 100 sites three times (1979, 2008, and 2016) during 37 yr to evaluate six hypotheses of community change. These hypotheses encompassed shifts in community measures (e.g., diversity, cover) and species elevational distributions, biotic homogenization, disproportionately large change at the highest elevations, relationships between turnover and ...
Physiological Mechanisms Through Which Heat Stress Compromises Reproduction In Pigs, 2019 Iowa State University
Physiological Mechanisms Through Which Heat Stress Compromises Reproduction In Pigs, Jason W. Ross, Benjamin J. Hale, Jacob T. Seibert, Matthew R. Romoser, Malavika K. Adur, Aileen F. Keating, Lance H. Baumgard
Seasonal variations in environmental temperatures impose added stress on domestic species bred for economically important production traits. These heat‐mediated stressors vary on a seasonal, daily, or spatial scale, and negatively impact behavior and reduce feed intake and growth rate, which inevitably lead to reduced herd productivity. The seasonal infertility observed in domestic swine is primarily characterized by depressed reproductive performance, which manifests as delayed puberty onset, reduced farrowing rates, and extended weaning‐to‐estrus intervals. Understanding the effects of heat stress at the organismal, cellular, and molecular level is a prerequisite to identifying mitigation strategies that should reduce the ...
Major Histocompatibility Complex Does Not Affect Mating Patterns In Bluegill Sunfish (Lepomis Macrochirus), 2019 The University of Western Ontario
Major Histocompatibility Complex Does Not Affect Mating Patterns In Bluegill Sunfish (Lepomis Macrochirus), Lucas Silveira
Electronic Thesis and Dissertation Repository
In many species, individuals prefer mates that are genetically dissimilar at the major histocompatibility complex (MHC). This is likely because it improves offspring resistance to pathogens. Here I provide the first genotypic characterization of the MHC class II peptide binding region in bluegill (Lepomis macrochirus), a species of sunfish, and examine its effect on mating patterns. I hypothesized females would choose to mate with MHC dissimilar males leading to an increase in the resulting offspring’s fitness. I captured females and males during spawning and sequenced the DNA of these fish at the MHC class II putative peptide binding region ...
The ‘Law Of Environmental Dependence’ - Biology And Ethics In The Work Of Ernest Everett Just: + Found – Some 251 Mostly Typed Pages, 2019 Southern Methodist University
The ‘Law Of Environmental Dependence’ - Biology And Ethics In The Work Of Ernest Everett Just: + Found – Some 251 Mostly Typed Pages, Theodore Walker
Perkins Faculty Research and Special Events
“The Origin of Man’s Ethical Behavior” (circa October 1941) by Ernest Everett Just and Hedwig A. Schnetzler Just - is an unpublished book manuscript about the biological origins and evolution of ethical behavior, and about “the law of environmental dependence.” Missing since Just’s death in October 1941, it was found and identified in May 2018 among the collected papers of Ernest Everett Just preserved at the Howard University Moorland-Spingarn Research Center in Washington, DC. In addition to the 1996 US postage with the caption “Ernest E. Just, Biologist,” we now have reason to add two new postage stamps ...
Approachability To A Human In Gilts Divergently Selected For Feed Efficiency, 2019 Iowa State University
Approachability To A Human In Gilts Divergently Selected For Feed Efficiency, Johanna Sholar, Jessica D. Colpoys, Nicholas K. Gabler, Aileen F. Keating, Suzanne T. Millman, Janice Siegford, Anna K. Johnson
The objective of this study was to evaluate approachability of gilts divergently selected for residual feed intake (RFI) to a novel human. Twenty low-RFI and 19 high-RFI gilts were tested using a human approach test. Testing occurred over two consecutive weeks between 1300 and 1900 hours. Gilts were tested individually within a 4.9 x 2.4 m test arena. Throughout the test, latency to first enter, duration of time spent, and frequency of entrances within 1 m and 0.5 m of the human were recorded. These results suggest that divergent selection for RFI did not alter gilt approach ...
Hunting And Mountain Sheep: Do Current Harvest Practices Affect Horn Growth?, 2019 Univeristy of Wyoming
Hunting And Mountain Sheep: Do Current Harvest Practices Affect Horn Growth?, Tayler N. Lasharr, Ryan A. Long, James R. Heffelfinger, Vernon C. Bleich, Paul R. Krausman, R. Terry Bowyer, Justin M. Shannon, Robert W. Klaver, Clay E. Brewer, Mike Cox, A. Andrew Holland, Anne Hubbs, Chadwick P. Lehman, Jonathatn D. Muir, Bruce Sterling, Kevin L. Monteith
Natural Resource Ecology and Management Publications
The influence of human harvest on evolution of secondary sexual characteristics has implications for sustainable management of wildlife populations. The phenotypic consequences of selectively removing males with large horns or antlers from ungulate populations has been a topic of heightened concern in recent years. Harvest can affect size of horn‐like structures in two ways: 1) shifting age structure toward younger age classes, which can reduce the mean size of horn‐like structures; or 2) selecting against genes that produce large, fast‐growing males. We evaluated effects of age, climatic and forage conditions, and metrics of harvest on horn size ...
Fishes Are Gaining Academic Respect, 2019 Independent Scientist and Author
Fishes Are Gaining Academic Respect, Jonathan Balcombe
Jonathan Balcombe, PhD
I respond to five commentaries on my 2016 book What a Fish Knows. The commentaries express more harmony than dissent about my interpretation of fishes as cognitive, aware individuals deserving better treatment by humankind.
Chicken Of The Sea, 2019 Independent Scientist and Author
Chicken Of The Sea, Jonathan Balcombe
Jonathan Balcombe, PhD
Marino summarizes research showing that chickens perform cognitively and emotionally at a higher level than previously assumed. Here, I describe capacities of teleost fishes that parallel those of chickens, including the ability to recognize human faces, perspective-taking, and referential communication. Research on chickens and on fishes reveals an emerging trend in cognitive ethology: abilities once thought limited to a scant few highly intelligent non-humans may actually occur broadly across taxa.
Probability, Populations, Phylogenetics And Hominin Speciation, 2019 San Francisco State University
Probability, Populations, Phylogenetics And Hominin Speciation, Niccolo Caldararo
Human Biology Open Access Pre-Prints
A number of recent articles have appeared on the hominin Denisova fossil remains. Many of them focus on attempts to produce DNA sequences from the extracted samples. Often these project mtDNA sequences from the fossil remains of a number of Neandertal fossils and the Denisovans in an attempt to understand the evolution of Mid Pleistocene human ancestors. These papers, introduce a number of problems in the interpretation of speciation in hominins. One concerns the degradation of the ancient DNA and its interpretation as authentic genetic information. Another concerns the idea of “species” versus that of “population” and the use of ...
Status Of The Topeka Shiner In Iowa, 2019 U.S. Geological Survey
Status Of The Topeka Shiner In Iowa, Clay L. Pierce, Nicholas T. Simpson, Alexander P. Bybel, Courtney L. Zambory, Michael J. Weber, Kevin J. Roe
Natural Resource Ecology and Management Publications
The Topeka shiner Notropis topeka is native to Iowa, Kansas, Minnesota, Missouri, Nebraska, and South Dakota and has been federally listed as endangered since 1998. Our goals were to determine the present distribution and qualitative status of Topeka shiners throughout its current range in Iowa and characterize the extent of decline in relation to its historic distribution. We compared the current (2016–2017) distribution to distributions portrayed in three earlier time periods. In 2016–2017 Topeka shiners were found in 12 of 20 HUC10 watersheds where they occurred historically. Their status was classified as stable in 21% of the HUC10 ...
Assessing The Impacts Of Time-To-Detection Distribution Assumptions On Detection Probability Estimation, 2019 Iowa State University
Assessing The Impacts Of Time-To-Detection Distribution Assumptions On Detection Probability Estimation, Adam Martin-Schwarze, Jarad Niemi, Philip Dixon
Abundance estimates from animal point-count surveys require accurate estimates of detection probabilities. The standard model for estimating detection from removal-sampled point-count surveys assumes that organisms at a survey site are detected at a constant rate; however, this assumption can often lead to biased estimates. We consider a class of N-mixture models that allows for detection heterogeneity over time through a flexibly defined time-to-detection distribution (TTDD) and allows for fixed and random effects for both abundance and detection. Our model is thus a combination of survival time-to-event analysis with unknown-N, unknown-p abundance estimation. We specifically explore two-parameter families of TTDDs, e ...
What Sets Us Apart Could Be Our Salvation, 2019 University of Sydney, Australia
What Sets Us Apart Could Be Our Salvation, Anne Fawcett, Paul Mcgreevy
Paul McGreevy, PhD
We agree with Chapman & Huffman that human capacities are often assumed to be unique — or attempts are made to demonstrate uniqueness scientifically — in order to justify the exploitation of animals and ecosystems. To extend the argument that human exceptionalism is against our interests, we recommend adopting the One Welfare framework, according to which animal welfare, environmental sustainability and human wellbeing are inseparably linked. Let us distinguish ourselves from other animals by resisting our short- and mid-term Darwinian inclinations, consuming less, reproducing less, and striving for a much longer-term biological fitness for us all.
A Tentative List Of The Land Snails Of Georgia, U.S.A., 2019 Reinhardt University
A Tentative List Of The Land Snails Of Georgia, U.S.A., Zachary I. Felix, Michael A. Dubuc, Hassan A. Rana
Georgia Journal of Science
Because of their high ecological and conservation value, and because we know so little about the group, we compiled a systematic if tentative list of land snails from the state of Georgia. After gleaning a list of species from a monograph on the land snails of eastern United States, written by Leslie Hubricht in 1985, we realized that many species whose ecological requirements are found in Georgia had not been documented there. Therefore, we developed a qualitative model to predict the likelihood that these candidate species occur in Georgia and would eventually be documented. We tested the model with collections ...
Automated Bioacoustics: Methods In Ecology And Conservation And Their Potential For Animal Welfare Monitoring, 2019 Queen Mary University of London
Automated Bioacoustics: Methods In Ecology And Conservation And Their Potential For Animal Welfare Monitoring, Michael P. Mcloughlin, Rebecca Stewart, Alan G. Mcelligott
Alan G. McElligott, PhD
Vocalizations carry emotional, physiological and individual information. This suggests that they may serve as potentially useful indicators for inferring animal welfare. At the same time, automated methods for analysing and classifying sound have developed rapidly, particularly in the fields of ecology, conservation and sound scene classification. These methods are already used to automatically classify animal vocalizations, for example, in identifying animal species and estimating numbers of individuals. Despite this potential, they have not yet found widespread application in animal welfare monitoring. In this review, we first discuss current trends in sound analysis for ecology, conservation and sound classification. Following this ...
The Multifaceted Effects Induced By Floods On The Macroinvertebrate Communities Inhabiting A Sinking Cave Stream, 2019 West University of Timişoara
The Multifaceted Effects Induced By Floods On The Macroinvertebrate Communities Inhabiting A Sinking Cave Stream, Octavian Pacioglu, Nicoleta Ianovici, Mărioara N. Filimon, Adrian Sinitean, Gabriel Iacob, Henrietta Barabas, Alexandru Pahomi, Andrei Acs, Hanelore Muntean, Lucian Pârvulescu
International Journal of Speleology
First-order sinking cave streams experience considerable hydrological variability, including spates and periods of base-flow during dry seasons. Early-summer flooding on a first-order stream sinking in Ciur-Ponor Cave (Romania) represented a suitable opportunity to test the response of the macroinvertebrate community and of basal food resources quantity and diversity to such a disturbance event. The invertebrate community and basal resources (i.e., woody debris, leaves, fine particulate organic matter and epilithon) were collected from three sampling sites, before and after the flood. The sampling strategy followed an up-downstream gradient of both species diversity and quantity of allochtonous organic matter decrease as ...