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African Wild Dog, Lycaon Pictus, Coloration Patterns And Social Aggregation, Ayong J. Kim 2017 CUNY Hunter College

African Wild Dog, Lycaon Pictus, Coloration Patterns And Social Aggregation, Ayong J. Kim

School of Arts & Sciences Theses

Packs of African wild dogs, Lycaon pictus, were analyzed for coloration patterns and social aggregation tendencies. Mapped locations determined if the coat patterns followed a geographic distribution that corresponded to Southern or Eastern phenotypic forms. Social aggregation tendencies were observed to determine grouping behavior presumably related to individuals’ roles.


Mpb Spot Infestation Data, James A. Powell 2017 Utah State University

Mpb Spot Infestation Data, James A. Powell

Browse all Datasets

This folder contains ASCII text raster files describing the pine density model and yearly aerial detection survey (ADS) data for three study areas: Sawtooth (central Idaho, USA), Chelan (north-central Washington, USA) and Northern Colorado (USA). These data supported analyses presented in

Powell, J.A., M.J. Garlick, B.J. Bentz and N.A. Friedenberg. (2017) Differential Dispersal and the Allee Effect Create Power-Law Behavior: Distribution of Spot Infestations During Mountain Pine Beetle Outbreaks. Journal of Animal Ecology.

Each raster is at 30m resolution, and each pixel is a density in a space-separated ascii file. The top five rows of each ...


The Role Of Avian Seed Dispersers And Large Woody Debris In Plant Establishment Following Dam Removal On The Elwha River, Wa, Sara J. Cendejas-Zarelli 2017 Western Washington University

The Role Of Avian Seed Dispersers And Large Woody Debris In Plant Establishment Following Dam Removal On The Elwha River, Wa, Sara J. Cendejas-Zarelli

Graduate Student Conference

Reservoir drawdown following the removal of two hydroelectric dams on the Elwha River, Washington, exposed ~800 acres of sediments and left a barren landscape in the former reservoirs. The establishment of native vegetation within these areas is critical to meeting restoration objectives. Large woody debris (LWD) can play an important role in riparian ecosystems and may assist in the development of early plant communities. LWD helps create favorable microsites for seedlings by creating shade, which decreases temperatures and increases moisture levels in sediments. In sparsely-vegetated landscapes such as those present in the former Mills reservoir, wildlife such as birds can ...


Assessing The Effects Of Chemical Mixtures Using A Bayesian Network-Relative Risk Model (Bn-Rrm) Integrating Adverse Outcome Pathways (Aops), Valerie Chu, Meagan J. Harris, Scarlett Graham, Lindsay K. Wallis, Chelsea Mitchell, John D. Stark, Katherine von Stackelberg 2017 Western Washington University

Assessing The Effects Of Chemical Mixtures Using A Bayesian Network-Relative Risk Model (Bn-Rrm) Integrating Adverse Outcome Pathways (Aops), Valerie Chu, Meagan J. Harris, Scarlett Graham, Lindsay K. Wallis, Chelsea Mitchell, John D. Stark, Katherine Von Stackelberg

Graduate Student Conference

There are long-standing uncertainties about toxicity of chemical mixtures to populations. Laboratory toxicity tests have confirmed synergistic and antagonistic effects to individuals, but not to populations.We will conduct a regional scale ecological risk assessment by evaluating the effects chemical mixtures to populations with a new Bayesian Network- Relative Risk Model (BN-RRM) incorporating an Adverse Outcome Pathway (AOP). We started applying this new BN-RRM framework in a case study with organophosphate pesticide mixtures (diazinon, chlorpyrifos, and malathion). Acetylcholinesterase inhibition (AChE) was chosen the molecular initiating event and the Puget Sound Chinook salmon (Oncorhynchus tshawytscha) and Coho salmon (Oncorhynchus kisutch) Evolutionary ...


Does Genotype Correlate With Phenotype? Evaluating Ruffed Lemur (Varecia Spp.) Color Vision Using Subject Mediated Automatic Remote Testing Apparatus (Smarta), Raymond Vagell 2017 CUNY Hunter College

Does Genotype Correlate With Phenotype? Evaluating Ruffed Lemur (Varecia Spp.) Color Vision Using Subject Mediated Automatic Remote Testing Apparatus (Smarta), Raymond Vagell

School of Arts & Sciences Theses

Ruffed lemur (Varecia spp.) color vision research was conducted using a multidisciplinary approach: psychophysics, genetic analysis, technology, and animal training. The behavioral manifestation of Varecia spp. trichromacy was shown using a touchscreen apparatus (SMARTA). Trichromats performed better than dichromats when discriminating red from green (G2 = 78.10, p < 0.001).


Deer Droppings As A Diverse Invertebrate Habitat, Allison Furr, Dr. Kevin Geedey 2017 Augustana College, Rock Island Illinois

Deer Droppings As A Diverse Invertebrate Habitat, Allison Furr, Dr. Kevin Geedey

Celebration of Learning

This project was performed at Augustana's Green Wing Environmental Laboratory and studied the richness and diversity of soil invertebrates in two conditions, deer poop enriched and surrounding soil. Soil invertebrates play an important role in soil quality which greatly affects ecosystems. The hypothesis of this study was that the diversity and richness would be the higher in the poop enriched soil samples. Soil samples were collected, Burlese funnels were used to collect the invertebrates, the invertebrates were examined under the microscope, and were assigned to taxa. The number of taxa (richness) and the number of individuals in each taxa ...


The Effects Of Urbanization On Nitrogen Processing In Urban Streams, Peter Francissen, Dr. Kevin Geedey, Dr. Michael Reisner 2017 Augustana College, Rock Island Illinois

The Effects Of Urbanization On Nitrogen Processing In Urban Streams, Peter Francissen, Dr. Kevin Geedey, Dr. Michael Reisner

Celebration of Learning

Urban stream syndrome is described as the deterioration of stream health in an urbanized watershed and is associated with the loss of ecosystem services, which in turn degrades downstream environments. One key symptom of the urban stream syndrome is reduced processing of inorganic nitrogen. Previous research suggests that as urbanization increases and water quality decreases, the uptake length (Sw) of inorganic N increases. This indicates that the stream is increasing the export of N downstream compared to in situ incorporation of N into the ecosystem. We measured uptake length (Sw) of NO3, using a pulse addition method, along 9 different ...


First Record Of Centruroides Alayoni Armas, 1999 (Scorpiones: Buthidae) From Haiti, Greater Antilles, Luis F. de Armas 2017 Marshall University

First Record Of Centruroides Alayoni Armas, 1999 (Scorpiones: Buthidae) From Haiti, Greater Antilles, Luis F. De Armas

Euscorpius

Centruroides haitiensis Lourenço, 2016, from Grande Cayemite, Haiti, is regarded as a junior synonym of Centruroides alayoni Armas, 1999, previously known from southern Pedernales Province (215 km east of Grande Cayemite), Dominican Republic. Consequently, C. alayoni is herein recorded for the first time from Haiti. The list of the Haitian species of the genus Centruroides Marx, 1890 is given.


Dispersal Rate Of The Asian Clam (Corbicula Fluminea): A Study With Pit Tagging, Tommy Cianciolo 2017 University of Tennessee, Knoxville

Dispersal Rate Of The Asian Clam (Corbicula Fluminea): A Study With Pit Tagging, Tommy Cianciolo

University of Tennessee Honors Thesis Projects

No abstract provided.


Influence Of Stream Permanence, Predation, And Invasive Species On Crayfish In The Ozark Highlands With An Emphasis On Species Of Greatest Conservation Need (Orconectes Marchandi, Orconectes Eupunctus And Cambarus Hubbsi), Allyson Noelle Yarra 2017 University of Arkansas, Fayetteville

Influence Of Stream Permanence, Predation, And Invasive Species On Crayfish In The Ozark Highlands With An Emphasis On Species Of Greatest Conservation Need (Orconectes Marchandi, Orconectes Eupunctus And Cambarus Hubbsi), Allyson Noelle Yarra

Theses and Dissertations

Due to the ecological importance of crayfish and the increasing vulnerability of freshwater systems due to habitat loss, invasive species, and hydrologic alteration, understanding crayfish-environment relationships is crucial in the context of aquatic species conservation. I sought to examine the influence of hydrologic variation among intermittent and permanent streams on crayfish occupancy, abundance, predation risk, and potential vulnerability to invasive species effects. I conducted crayfish and environmental data sampling during two consecutive summers across 20 Ozark streams of differing permanence levels (10 intermittent, 10 permanent). In these same streams, I conducted fish and scat surveys over the course of four ...


Flight Activity, Oviposition Pit Distribution, And Emergence Densities Of Monochamus Titillator And M. Carolinensis In The Ozark-St. Francis National Forest In Arkansas, Jake Bodart 2017 University of Arkansas, Fayetteville

Flight Activity, Oviposition Pit Distribution, And Emergence Densities Of Monochamus Titillator And M. Carolinensis In The Ozark-St. Francis National Forest In Arkansas, Jake Bodart

Theses and Dissertations

Monochamus (Coleoptera: Cerambycidae) are a genus of longhorn beetles commonly known as pine sawyers. They have a worldwide distribution coincident with pines (Pinaceae) and are vectors of the pinewood nematode (Bursaphelenchus xylophilus). In the United States, there are eight known Monochamus species and they have a sympatric distribution with at least one other Monochamus species throughout their range. Monochamus are known to attack stressed, dead, and dying conifers especially pines. In the Ozark- St. Francis National Forest in Arkansas, there are two species of pine sawyers and they share this sympatric distribution observed throughout the United States, M. titillator (southern ...


Answers To Common Misconceptions About Biological Evolution, Leah M. Abebe, Blake Bartels, Kaitlyn M. Caron, Adam M. Gleeson, Samuel N. Johnson, Tyler J. Kluza, Nicholas W. Knopik, Kristen N. Kramer, Masiel S. Maza, Kaitlyn A. Stava, Kaitlyn Sullivan, Jordan T. Trimble, Robert M. Zink , editor 2017 University of Nebraska-Lincoln

Answers To Common Misconceptions About Biological Evolution, Leah M. Abebe, Blake Bartels, Kaitlyn M. Caron, Adam M. Gleeson, Samuel N. Johnson, Tyler J. Kluza, Nicholas W. Knopik, Kristen N. Kramer, Masiel S. Maza, Kaitlyn A. Stava, Kaitlyn Sullivan, Jordan T. Trimble, Robert M. Zink , Editor

Papers in Evolution

“When you have an established scientific emergent truth, it is true whether or not you believe in it.” Neil deGrasse Tyson, Science in America. Very few people outside of a particular scientific discipline can actually say they understand it, because most do not have the training to “speak the language.” They are then not particularly bothered by its tenets and predictions. Of all the major branches of science, however, evolutionary biology is an exception to this generalization because even though people are not versed in the field, they sometimes have a negative, knee-jerk objection. This objection is often because they ...


Where In The World Are Pallas's Fish Eagles? Migration And Ecology Of Haliaeetus Leucoryphus In Asia, Marla Lynn Steele 2017 University of Arkansas, Fayetteville

Where In The World Are Pallas's Fish Eagles? Migration And Ecology Of Haliaeetus Leucoryphus In Asia, Marla Lynn Steele

Theses and Dissertations

Pallas’s Fish Eagle (Haliaeetus leucoryphus) is the Northern Hemisphere’s least understood eagle species. Virtually nothing is known concerning the species’ ecology. Historically, Pallas’s Fish Eagles were expected to breed in three separate populations in Mongolia, China, and India and was considered one of the most common raptors in Asia prior to the 1900’s. However, by 1960’s major declines were observed. The species is currently listed as “globally vulnerable” by the International Union for the Conservation of Nature (IUCN) Red List. The current study examined over a century of Pallas’s Fish Eagle observation data to ...


Lacuna: Transcendence Of The Human Body Through The Space Between, Anica Bottom 2017 Dominican University of California

Lacuna: Transcendence Of The Human Body Through The Space Between, Anica Bottom

Honors Theses and Capstone Projects

This essay examines the author’s choreography, Lacuna, and research integral to its representation. During the choreographic process, experimentation of how the human body moves in relation to different architectural space was observed. In collaboration with the cast of dancers, cohesion of personal experiences in particular locations was evaluated: specifically, investigation of how environments has the ability to trigger habits or patterns of movement from both past and present experiences. A closer look at how the body responds on a visceral level to the physical and emotional sense of place is described. Although the choreographic piece, Lacuna, came to be ...


Evidence For The Priming Effect In Single Strain And Simplified Communities Of Estuarine Bacteria, Abigail Amina Edwards 2017 University of Tennessee, Knoxville

Evidence For The Priming Effect In Single Strain And Simplified Communities Of Estuarine Bacteria, Abigail Amina Edwards

University of Tennessee Honors Thesis Projects

No abstract provided.


Demography Of A Collapsing Aerial Insectivore Population, Liam Taylor 2017 Bowdoin College

Demography Of A Collapsing Aerial Insectivore Population, Liam Taylor

Honors Projects

Aerial insectivores have been declining across northeastern North America since the end of the 20th century. The mechanisms and demographic patterns of this decline are unclear. On Kent Island, New Brunswick, Canada, an isolated population of Tree Swallows (Tachycineta bicolor) collapsed between 1987 and 2010. To explore how demographic rates (i.e., survival, reproduction, and immigration) drove the population dynamics of these northeastern aerial insectivores, we combined productivity, population survey, and capture-recapture data in an integrated population model analysis. Neither consistently low juvenile survival rates, adult survival rates, nor clutch size were correlated with population growth rate across years. Alternatively ...


Microbial Communities And The Diverse Ecology Of Fecal Indicators At Lake Michigan Beaches, Danielle Cloutier 2017 University of Wisconsin-Milwaukee

Microbial Communities And The Diverse Ecology Of Fecal Indicators At Lake Michigan Beaches, Danielle Cloutier

Theses and Dissertations

Fecal indicator bacteria (FIB) such as Escherichia coli (E. coli) and enterococci are used to assess microbiological water quality in recreational waters. The use of FIB follows the assumption that their presence correlates with that of fecal-associated pathogens in recreational waters. The beach ecosystem is complex however and multiple factors can influence the concentration of E. coli and enterococci in the beach environment. Microbial communities within beach sand play a key role in nutrient cycling and are important to the nearshore ecosystem function. E. coli and enterococci, two common indicators of fecal pollution, have been shown to persist in the ...


Cryptic Diversity And Phenotypic Stasis In A Complex Of Highland Anoles (Squamata: Dactyloidae: Norops Crassulus Subgroup), Erich Hofmann 2017 Indiana University of Pennsylvania

Cryptic Diversity And Phenotypic Stasis In A Complex Of Highland Anoles (Squamata: Dactyloidae: Norops Crassulus Subgroup), Erich Hofmann

Theses and Dissertations (All)

Insular populations of anole lizards (Squamata: Dactyloidae) are a focal species for evolutionary research, yet mainland species remain relatively poorly studied. In particular, the Norops crassulus subgroup has long challenged taxonomists, and previously, no accurate understanding of their evolutionary relationships had been inferred. To address this confusion, I used a three-part approach to exploring the diversity of anoles in the Chortís Block. First, I utilized single-locus DNA barcoding to generate a reference dataset of as many species as possible. Then, through multilocus phylogenetics, I analyzed the relationships within the N. crassulus subgroup. Finally, I examined populations of N. crassulus for ...


Hemichordates As A Model System For Investigating Intertidal Zonation In Soft Sediments, Kharis R. Schrage 2017 College of William and Mary

Hemichordates As A Model System For Investigating Intertidal Zonation In Soft Sediments, Kharis R. Schrage

Undergraduate Honors Theses

Intertidal zonation of organisms is well studied on rocky shores but less so in soft sediment communities. On rocky shores, biotic factors such as predation often set the lower bound of a zone, while abiotic factors set the upper bound. Here I describe the zonation of hemichordate worms at two field sites in Maine and Virginia. In Virginia, Saccoglossus kowalevskii occurs in the mid-intertidal zone at densities up to 500 m-2. In Maine, two hemichordate species, Saccoglossus bromophenolosus and Protoglossus graveolens, co-occur at densities approaching 100 m-2. Hemichordates have chemical defenses that appear to deter fish, but ...


Effects Of Temperature Gradient, Substrate Composition And Canopy Cover On The Spatial Distribution Of Two Topminnow Species: Fundulus Notatus And Fundulus Olivaceus, Austin M. King 2017 The University of Southern Mississippi

Effects Of Temperature Gradient, Substrate Composition And Canopy Cover On The Spatial Distribution Of Two Topminnow Species: Fundulus Notatus And Fundulus Olivaceus, Austin M. King

Honors Theses

Hybrid zones are locations where two interbreeding species coexist and hybridize. The spatial distribution of ecologically similar species is of primary interest in understanding the formation and stability of hybrid zones. These hybrid zones are of significance as they allow for insight into how speciation occurs naturally within the environment. A variety of factors may play a role in determining the spatial distributions of species within hybrid zones. Examples of these factors include variations in temperature gradients, substrate composition, and changes in canopy cover. Fundulus olivaceus and Fundulus notatus are generally found within upstream and downstream habitats respectfully. These habitats ...


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