Morphological Traits As Indicators Of Sexual Dimorphism In Prairie Rattlesnakes (Crotalus Viridis), 2018 University of Nebraska at Omaha
Morphological Traits As Indicators Of Sexual Dimorphism In Prairie Rattlesnakes (Crotalus Viridis), Colleen Rothe-Groleau, Claudia M. Rauter, James D. Fawcett
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
As humans encroach into areas inhabited by predators, the potential of human-predator confrontations increases and the predators become regarded as dangerous pests. Predators exert a measure of population control over pest species such as small rodents, as well as limit the quantity and scope of diseases (e.g. spread of Hantavirus by these prey species). Control of these small rodent pest species can be aided by conserving and managing their predators like rattlesnakes (Crotalus spp). Management of any population requires detailed information on population composition and the ability to determine the key information (especially age and sex) for each individual ...
Effects Of Environmental Enrichment On Behavior In A Domestic Goat Herd, 2018 University of Rhode Island
Effects Of Environmental Enrichment On Behavior In A Domestic Goat Herd, Stephanie Peramas
Senior Honors Projects
Animal welfare is one of the most important parts of animal management. Apart from other measures of good animal welfare, like being in good health, animal behavior can be indicative of the animal’s internal state and is often one of the first signs of improper welfare. Stereotypies, or stereotypic behavior, are commonly viewed as a symptom of improper animal welfare. Unenriched, or barren, environments associated with farmed livestock have long been associated with inducing stereotypic behavior. The addition of precise enrichment to the animals’ environment is a common remedy for stereotypic behavior. With respect to stereotypic goat behavior, few ...
Towards Quantifying Relevant Land Cover Change: A Case Study In The Central Flyway Of The Monarch Butterfly, 2018 University of Arkansas, Fayetteville
Towards Quantifying Relevant Land Cover Change: A Case Study In The Central Flyway Of The Monarch Butterfly, Hanna Lenee Ford
Theses and Dissertations
Over the past 20 years notable decreases in monarch butterfly populations have led researchers to begin evaluating the landscape for changes and seeking out opportunities for enacting conservation programs to better support their survival. The monarch butterfly has recently come under consideration for listing under the Endangered Species Act which has created a need for a more informed view of the landscape through which the migrate and breed, the central United States. In this research three spatially-explicit models are explored using the most applicable datasets currently available to address pressing policy and land manager decisions regarding monarch butterfly and pollinator ...
Ichthyology Scientific Collection Spreadsheet, 2018 Pittsburg State University
Ichthyology Scientific Collection Spreadsheet, Karisa Boyer
No abstract provided.
Further Investigation Of A Novel Rhabditid Nematode, 2018 Ohio Wesleyan University
Further Investigation Of A Novel Rhabditid Nematode, Evan Hudgens, Nathan Schmidt
Nematodes are among the most numerous and widespread animals on earth. The nematode Caenorhabditis elegans is a well-established model organism used for a wide-variety of studies ranging from biomedical to behavioral to ecological, and more. While C. elegans is well characterized, there are thousands of different species of nematodes, many of which have not been studied. We are characterizing several Rhabditid nematodes isolated in association with millipedes from both Ohio and Florida. Sequence analysis of rDNA genes supports that one of the species of worms we isolated is Oscheius myriophila. Other worms we isolated are similar, but we believe may ...
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.
Can Diet Affect Coloration In Tiger Salamanders?, 2018 University of Minnesota - Morris
Can Diet Affect Coloration In Tiger Salamanders?, Katherine Novak
Undergraduate Research Symposium 2018
Amphibians are the fastest known declining taxonomic group in the world with 48% of populations in decline (Stuart et. al. 2004). These declines in amphibian populations are partially due to the lack of basic life history data (Semlitsch 2003). For example, amphibians are known for their bright coloration and ability to rapidly change color. Coloration is key to amphibian survival in terms of defense (as camouflage or a warning sign to predators), thermoregulation (darker skin warms faster), and communication (primarily mating displays) (Rudh and Qvanstrom 2013). One aspect of amphibian coloration that is poorly understood is how much the environment ...
The Activity Of Saccharolytic Enzymes In Collembola Is Associated With Species Affinity For Caves, 2018 P. J. Šafárik University
The Activity Of Saccharolytic Enzymes In Collembola Is Associated With Species Affinity For Caves, Andrea Parimuchová, Vladimír Šustr, Miloslav Devetter, Ondřej Vošta, Ionuţ Popa, Ľubomír Kováč
International Journal of Speleology
The activity of enzymes associated with digestion can reflect food availability and feeding preferences of invertebrates in a particular habitat. Caves are mostly nutrient-poor habitats lacking primary production. In the present study the enzymatic activity of cellulases, trehalases and chitinases was measured in eight collembolan species differently associated with the cave environment: the troglobionts (obligate cave species) Pseudacherontides spelaeus and Protaphorura janosik; the eutroglophiles Ceratophysella denticulata, Folsomia candida and Heteromurus nitidus; the subtroglophiles Hypogastrura aequepilosa and Orthonychiurus rectopapillatus; and the trogloxene (not associated with caves) Megaphorura arctica. Qualitative enzymatic patterns and quantitative differences in species activity were considered in terms ...
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xv. Review Of The Genus Gint Kovařík Et Al., 2013, With Description Of Three New Species From Somaliland (Scorpiones, Buthidae), 2018 Charles University
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xv. Review Of The Genus Gint Kovařík Et Al., 2013, With Description Of Three New Species From Somaliland (Scorpiones, Buthidae), František Kovařík, Graeme Lowe, Pavel Just, Ahmed Ibrahim Awale, Hassan Sh Abdirahman Elmi, František Šťáhlavský
We describe herein three new species of Buthidae: Gint amoudensis sp. n., G. gubanensis sp. n., and G. maidensis sp. n. from Somaliland. Additional information is provided on the taxonomy and distribution of other species of the genus Gint, fully complemented with color photos of live and preserved specimens, as well as of their habitat. The hemispermatophores of most Gint species are illustrated and described for the first time. In addition to the analyses of external morphology and hemispermatophores, we also describe the karyotype of four Gint species. The number of chromosomes is different for every one of the analysed ...
Soil Responses To 48 Years Of Continuous No Till And Conventional Till Corn In Central Kentucky, Usa, 2018 Murray State University
Soil Responses To 48 Years Of Continuous No Till And Conventional Till Corn In Central Kentucky, Usa, Emily Cook
Cropping systems, fertilizer applications and tillage practices influence soil physical and chemical characteristics. In this study, the impact of long-term conventional and no-tillage systems on selected soil properties were evaluated in a continuous corn system on a Maury silt loam soil. This field for the study is located on the University of Kentucky's Research Farm (Spindletop Farm). The field was tilled in 1969 from bluegrass sod and the first year's data was in 1970. Each plot is 20 ft. by 40 ft. and for many years each plot was split with winter cover crop planted to rye or ...
Emergence Of Zoos In The U.S. And A Search For The Exotic, 2018 Lynchburg College
Emergence Of Zoos In The U.S. And A Search For The Exotic, Austin M. Hutchinson
Student Scholar Showcase
The emergence of zoos in twentieth century America had many factors that contributed to their mission, success, and overall exotic nature. Zoos have been a part of human civilization for centuries, but it would not be until 1876 when the first zoo would appear in the United States. Individuals craved excitement and the use of exotic animals from all over the world became an important component of what zoos would become. This era coincides with the European colonization of Sub-Saharan Africa, known as the Scramble for Africa. Animals were brought from the so-called “Dark Continent” to be put on display ...
Vocalizations Of North American River Otters (Lontra Canadensis) In Two Human Care Populations, 2018 The University of Southern Mississippi
Vocalizations Of North American River Otters (Lontra Canadensis) In Two Human Care Populations, Sarah Walkley
There is a dearth of information regarding the vocal repertoire of North American river otters (Lontra canadensis). This indicator species is cosmopolitan yet elusive, making recordings methodologically difficult in the wild. Therefore, this exploratory study uses video and audio recordings of two populations of North American river otters in human care to broaden the known vocal repertoire of river otters in various social contexts. The populations consist of a male-female pair at the Stamford Museum and Nature Center and a male-male pair at The Maritime Aquarium at Norwalk. This study is the first to examine the vocalizations produced in a ...
Ichthyology Field Notebooks Spreadsheet, 2018 Pittsburg State University
Ichthyology Field Notebooks Spreadsheet, Karisa Boyer
No abstract provided.
Using Unmanned Aerial Vehicle Technology To Enhance Conservation Biology Research, 2018 University of Nebraska-Lincoln
Using Unmanned Aerial Vehicle Technology To Enhance Conservation Biology Research, Ann Briggs
Honors Theses, University of Nebraska-Lincoln
This study examined the most effective ways to utilize unmanned aerial vehicles (UAV) for wildlife conservation. More specifically, a UAV platform was created that can perform multiple data collection tasks by utilizing interchangeable modules. The prototype produced in this study has the capability to perform many tasks through the use of interchangeable modules. These tasks include, but are not limited to aerial surveys and collection of biological samples. This innovative technology will provide invaluable assistance to conservation efforts by reducing research and subject injury or death while maximizing efficiency. The modular design of the prototype was developed for retail to ...
Checklist Of The Avian Species Observed At The Gordon Natural Area (West Chester University, Pa) 2004-2018. Version Vii. Latest Observations From Ebird: 3/23/2018, 2018 West Chester University of Pennsylvania
Checklist Of The Avian Species Observed At The Gordon Natural Area (West Chester University, Pa) 2004-2018. Version Vii. Latest Observations From Ebird: 3/23/2018, Nur Ritter, Josh R. Auld
Gordon Natural Area Bird Survey Documents
No abstract provided.
Revision Of The Mesobuthus Caucasicus Complex From Central Asia, With Descriptions Of Six New Species (Scorpiones: Buthidae), Victor Fet, František Kovařík, Benjamin Gantenbein, Ronald C. Kaiser, Alexander K. Stewart, Matthew R. Graham
A widespread Mesobuthus caucasicus complex, which includes some of the most common scorpions found from the Caucasus to China, is revised for the first time based on new extensive collections from Central Asia, using both morphological and DNA marker data. Mesobuthus caucasicus (Nordmann, 1840), s.str. is restricted to the Caucasus Mts. Four taxa are elevated to species rank: M. fuscus (Birula, 1897) (Tajikistan), M. intermedius (Birula, 1897) (Tajikistan), M. kaznakovi (Birula, 1904) (Tajikistan, Uzbekistan), and M. parthorum (Pocock, 1889) (Afghanistan, Iran, Turkmenistan). Six new species are described: M. brutus sp. n. (Iran), M. elenae sp. n. (Tajikistan, Uzbekistan), M ...
Bats Of Sint Eustatius, Caribbean Netherlands, 2018 South Dakota State University
Bats Of Sint Eustatius, Caribbean Netherlands, Scott C. Pedersen, Peter A. Larsen, Sil A. Westra, Ellen Van Norren, Wesley Overman, Gary G. Kwiecinski, Hugh H. Genoways
Mammalogy Papers: University of Nebraska State Museum
The bat fauna of the Caribbean island of Sint Eustatius consists of five documented species—Monophyllus plethodon, Brachyphylla cavernarum, Artibeus jamaicensis, Ardops nichollsi, and Molossus molossus—and one provisional species—Tadarida brasiliensis. The Insular Single-leaf Bat, M. plethodon, is reported in the scientific literature for the first time from Sint Eustatius based on material presented herein. The bat fauna of the island is considered to be unbalanced because only three species, which are the environmental generalists, are abundant, whereas the more specialized species are rare or absent from the fauna. It is our hypothesis that the unbalanced bat fauna on ...
Personality In California Sea Lions (Zalophus Californianus) And Harbor Seals (Phoca Vitulina): Methodological Convergence And Species-Specific Emotional Repertoires., 2018 The University of Southern Mississippi
Personality In California Sea Lions (Zalophus Californianus) And Harbor Seals (Phoca Vitulina): Methodological Convergence And Species-Specific Emotional Repertoires., Amber De Vere
Despite the wide acceptance of animal personality as a valid area of study, research on marine mammal personality remains remarkably scarce. What literature does exist predominantly focuses on bottlenose dolphins (Frick, 2016; Highfill & Kuczaj, 2007; Kuczaj, Highfill & Byerly, 2012; Lilley, de Vere, Yeatre & Kuczaj, 2018; Moreno, Highfill & Kuczaj, 2017). There is also strong evidence for individual differences in grey seals (Robinson et al., 2015; Twiss & Franklin, 2010; Twiss, Culloch & Pomeroy, 2011; Twiss, Cairns, Culloch, Richards & Pomeroy, 2012), and preliminary research has provided evidence of broad personality factors in pinniped species using behavioral coding (de Vere, Lilley & Highfill, 2017) and trait rating methods (Ciardelli, Weiss, Powell & Reiss, 2017). Several aspects of personality are not well documented across many taxa, including age-related patterns, the species-relevance of emotional trait words, potential issues associated with the non-human Dominance factor, and the convergent validity of multiple methods. The current study therefore aimed to address these issues in two pinniped species, California sea lions and harbor seals, and provides the first cross-method validation of personality dimensions in these taxa. There was some evidence that pinniped trainers could reliably rate the emotional states experienced by these species. Trait rating assessments produced three personality factors for each species; these exhibited good cross-method convergence in California sea lions, but not harbor seals. Dominance rankings were correlated with one behavioral and one rating factor in each species, although this was somewhat confounded by the extremely close correspondence of dominance and age.
Insect (Arthropoda: Insecta) Composition In The Diet Of Ornate Box Turtles (Terrapene Ornata Ornata) In Two Western Illinois Sand Prairies, With A New State Record For Cyclocephala (Coleoptera: Scarabaeidae), 2018 University of Mississippi
Insect (Arthropoda: Insecta) Composition In The Diet Of Ornate Box Turtles (Terrapene Ornata Ornata) In Two Western Illinois Sand Prairies, With A New State Record For Cyclocephala (Coleoptera: Scarabaeidae), Reese J. Worthington, E. R. Sievers, D. B. Ligon, P. K. Lago
The Great Lakes Entomologist
A study of fecal samples collected over a two-year period from juvenile ornate box turtles (Terrapene ornata ornata Agassiz) revealed diets consisting of six orders of insects representing 19 families. Turtles were reared in captivity from eggs harvested from local, wild populations, and released at two remnant prairies. Identifiable insect fragments were found in 94% of samples in 2013 (n=33) and 96% in 2014 (n=25). Frequency of occurrence of insects in turtle feces is similar to results reported in previous studies of midwestern Terrapene species. A comparison of insect composition presented no significant difference between release sites. There ...
Scorpions Of Sri Lanka (Arachnida, Scorpiones). Part Ii. Family Hormuridae, 2018 Charles University
Scorpions Of Sri Lanka (Arachnida, Scorpiones). Part Ii. Family Hormuridae, František Kovařík, Kithsiri B. Ranawana, V. A. Sanjeewa Jayarathne, Sanjaya Karunarathna, Alexander Ullrich
Liocheles australasiae (Fabricius, 1775) is reported for the first time from Sri Lanka. Sri Lankan population is fully complemented with color photos of live and preserved females, as well as its habitat.