Investigating Genetic Differences Between Strains Of Janthinobacterium Lividum On Salamanders And In Their Environment, 2016 University of Tennessee - Knoxville
Investigating Genetic Differences Between Strains Of Janthinobacterium Lividum On Salamanders And In Their Environment, Rhiannon E. Black
University of Tennessee Honors Thesis Projects
No abstract provided.
Environmental Impacts And Carry-Over Effects In Complex Life Cycles: The Role Of Different Life History Stages, 2015 University of Southern Mississippi
Environmental Impacts And Carry-Over Effects In Complex Life Cycles: The Role Of Different Life History Stages, Nnaemeka F. Ezeakacha
A challenge faced by organisms with complex life cycles is how environmental factors experienced at an earlier life stage affect the fitness at that stage or are carried over to subsequent life stages. I used container-inhabiting mosquitoes: Aedes albopictus, Aedes aegypti, Aedes triseriatus and Culex quinquefasciatus to study the interactions and performance of life history stages under specific environmental factors. I investigated the effects of egg-desiccation tolerance on egg viability and larval performance in the Aedes mosquitoes. I found increase in egg hatch rate with relative humidity and interaction between relative humidity and egg storage period. Larval performance differed among ...
Macrobenthic Communities In The Northern Gulf Of Mexico Hypoxic Zone: Testing The Pearson-Rosenberg Model, 2015 The University of Southern Mississippi
Macrobenthic Communities In The Northern Gulf Of Mexico Hypoxic Zone: Testing The Pearson-Rosenberg Model, Shivakumar Shivarudrappa
The Pearson and Rosenberg (P-R) conceptual model of macrobenthic succession was used to assess the impact of hypoxia (dissolved oxygen [DO] ≤ 2 mg/L) on the macrobenthic community on the continental shelf of northern Gulf of Mexico for the first time. The model uses a stress-response relationship between environmental parameters and the macrobenthic community to determine the ecological condition of the benthic habitat. The ecological significance of dissolved oxygen in a benthic habitat is well understood. In addition, the annual recurrence of bottom-water hypoxia on the Louisiana/Texas shelf during summer months is well documented.
The P-R model illustrates the ...
Same-Sex Socio-Sexual Interactions Among A Group Of Captive Bottlenose Dolphins (Tursiops Truncatus), 2015 University of Southern Mississippi
Same-Sex Socio-Sexual Interactions Among A Group Of Captive Bottlenose Dolphins (Tursiops Truncatus), Natalia Botero Acosta
Bottlenose dolphins (Tursiops truncatus) frequently engage in non-reproductive sexual behavior, including homosexual encounters. In order to better understand the nature and function of these interactions, a longitudinal study of the patterns of association and the dynamics of initiator/recipient role exchange was conducted. Underwater video footage of a colony of bottlenose dolphins housed at the Roatan Institute for Marine Sciences (RIMS), collected between March of 2010 and May of 2013, was analyzed. Associations occurring during homosexual interactions were transitory for most individuals. Nonetheless, subsequent analyses allowed the rejection of the null hypothesis of random association, suggesting the existence of preferred ...
Exploring, Exploiting And Evolving Diversity Of Aquatic Ecosystem Models: A Community Perspective, 2015 Netherlands Institute of Ecology
Exploring, Exploiting And Evolving Diversity Of Aquatic Ecosystem Models: A Community Perspective, Annette B.G. Janssen, George B. Arhonditsis, Arthur Beusen, Karsten Bolding, Louise Bruce, Jorn Bruggeman, Raoul-Marie Couture, Andrea S. Downing, J. Alex Elliott, Marieke A. Frassl, Gideon Gal, Daan J. Gerla, Matthew R. Hipsey, Fenjuan Hu, Stephen C. Ives, Jan H. Janse, Erik Jeppesen, Klaus D. Jöhnk, David Kneis, Xiangzhen Kong, Jan J. Kuiper, Moritz K. Lehmann, Carsten Lemmen, Deniz Özkundakci, Thomas Petzoldt, Karsten Rinke, Barbara J. Robson, René Sachse, Sebastiaan A. Schep, Martin Schmid, Huub Scholten, Sven Teurlincx, Dennis Trolle, Tineke A. Troost, Anne A. Van Dam, Luuk P.A. Van Gerven, Mariska Weijerman, Scott A. Wells, Wolf M. Mooij
Civil and Environmental Engineering Faculty Publications and Presentations
Here, we present a community perspective on how to explore, exploit and evolve the diversity in aquatic ecosystem models. These models play an important role in understanding the functioning of aquatic ecosystems, filling in observation gaps and developing effective strategies for water quality management. In this spirit, numerous models have been developed since the 1970s. We set off to explore model diversity by making an inventory among 42 aquatic ecosystem modellers, by categorizing the resulting set of models and by analysing them for diversity. We then focus on how to exploit model diversity by comparing and combining different aspects of ...
University Faculty And Their Knowledge & Acceptance Of Biological Evolution, 2015 Iowa State University
University Faculty And Their Knowledge & Acceptance Of Biological Evolution, Justin W. Rice, Michael P. Clough, Joane K. Olson, Dean C. Adams, James T. Colbert
Ecology, Evolution and Organismal Biology Publications
Misconceptions about biological evolution specifically and the nature of science in general are pervasive in our society and culture. The view that biological evolution explains life’s origin(s) and that hypotheses become theories, which then become laws are just two examples of commonly held misconceptions. These misconceptions are reinforced in the media, in people’s personal lives, and in some unfortunate cases in the science classroom. Misconceptions regarding the nature of science (NOS) have been shown to be related to understanding and acceptance of biological evolution. Previous work has looked at several factors that are related to an individual ...
Estudios En Biodiversidad, Volumen I, 2015 Universidad Autónoma del Estado de Hidalgo
Estudios En Biodiversidad, Volumen I, Griselda Pulido-Flores, Scott Monks, Maritza López-Herrera
Este libro es el producto del trabajo colegiado que han desarrollado los profesores, investigadores, y estudiantes que conforman la Red Temática de Calidad Ambiental y Desarrollo Sustentable, a través del macroproyecto “Evaluación del impacto ambiental por actividades antropogénicas: Alternativas de mitigación”. El cual fue apoyado con recursos financieros por parte del Programa para el Desarrollo Profesional Docente (PRODEP), de la Secretaria de Educación Pública (SEP) en México. Las instituciones de educación superior y cuerpos participantes en la red temática son la Universidad Autónoma del Estado de Hidalgo (Uso, Manejo y Conservación de la Biodiversidad UAEHCA- 10; Ciencias Ambientales UAEH-CA-59); Universidad ...
Climate. A Period Of Consequence: Environmental Literature Of 2006 (2006), 2015 University of Massachusetts Boston
Climate. A Period Of Consequence: Environmental Literature Of 2006 (2006), Shaun O’Connell
New England Journal of Public Policy
The author talks about the consequences of not respecting the climate and understanding global warming will cause ecocide and our own extinction.
Evidence Of Field-Evolved Resistance To Bifenthrin In Western Corn Rootworm (Diabrotica Virgifera Virgifera Leconte) Populations In Western Nebraska And Kansas, Adriano E. Pereira, Haichuan Wang, Sarah N. Zukoff, Lance Meinke, B. Wade French, Blair Siegfried
Faculty Publications: Department of Entomology
Pyrethroid insecticides have been used to control larvae or adults of the western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, a key pest of field corn in the United States. In response to reports of reduced efficacy of pyrethroids in WCR management programs in southwestern areas of Nebraska and Kansas the present research was designed to establish a baseline of susceptibility to the pyrethroid insecticide, bifenthrin, using susceptible laboratory populations and to compare this baseline with susceptibility of field populations. Concentration-response bioassays were performed to estimate the baseline susceptibility. From the baseline data, a diagnostic concentration (LC99) was determined and ...
Influence Of Traditional Taboo Practices On Natural Resource Conservation In Uli, Ihiala Local Government Area Of Anambra State Nigeria; Sustainable Community Development., 2015 University of Benin - Nigeria
Influence Of Traditional Taboo Practices On Natural Resource Conservation In Uli, Ihiala Local Government Area Of Anambra State Nigeria; Sustainable Community Development., Geoffrey O. Anoliefo, Paul Anulika Nwokeji, Beckley Ikhajiagbe
Journal of Environmental Sustainability
Environmental sustainability is the conservation and maintenance of the ecological integrity of a given area. The present study investigated the effective use of traditional laws and taboo practices in the preservation of the natural resources of Uli, a town in Ihiala Local Government Area of Anambra State Nigeria. The study examined strategies employed in environmental sustainability in this area at the period leading upto Nigeria’s independence in 1960, impact of the civil war (1967-1970) and its aftermath till date. The instruments used for the data collection included literature review, field survey using the questionnaire, one on one oral ...
Evolution And Otitis Media: A Review, And A Model To Explain High Prevalence In Indigenous Populations, 2015 UCL Ear Institute, Royal National Throat Nose and Ear Hospital, London
Evolution And Otitis Media: A Review, And A Model To Explain High Prevalence In Indigenous Populations, Mahmood F. Bhutta
Human Biology Open Access Pre-Prints
Inflammation of the middle ear (otitis media) comprises a group of disorders that are highly prevalent in childhood, and indeed are amongst the most common disorders of childhood. Otitis media is also heritable, and has effects on fecundity. This means that otitis media is subject to evolution, yet the evolutionary selection forces that may determine susceptibility to otitis media have never been adequately explored.
Here I undertake a critical analysis of evolutionary forces that may determine susceptibility to middle ear inflammation. These forces include those determining function of the middle ear, those affecting host immunity, and those affecting colonization by ...
P-29 Diversity And Species Turnover Of Late Cenozoic Ground Squirrels In The Meade Basin, Ks, 2015 Andrews University
P-29 Diversity And Species Turnover Of Late Cenozoic Ground Squirrels In The Meade Basin, Ks, H. Thomas Goodwin
Celebration of Research and Creative Scholarship Programs
The Meade Basin of southwestern Kansas preserves one of the richest fossil sequences from the late Cenozoic of North America. An ongoing study has documented a rich record of fossils, especially rodents; established episodes of especially rapid species turnover (when species appear or disappear from the local record); and has attempted to relate these processes to environmental change inferred from stable isotope and other proxies for ancient climate. Here, I report on fossil squirrels from the record. At least 7 genera and 13 species are present in the composite record. Species turnover occurs throughout the record, but an especially high ...
P-04 Cavan Burren 2015 Project, 2015 Andrews University
P-04 Cavan Burren 2015 Project, Rhonda Root, Robin Johnson, Ariel Solis, Abelardo Rivas
Celebration of Research and Creative Scholarship Programs
The Cavan Burren is a plantation forest within the Marble Arch Caves UNESCO Global Geopark overlay along the Republic of Ireland and Northern Ireland border. The exposure of Cavan Burren’s "relict landscape" resulted from a 2012 partial clear fell. Our multidisciplinary team of researchers in architecture, technology, ecology, fine arts, and archaeology investigated domestic architecture reflected in three stone configurations: circular/semicircular sites, rectangular sites, and tomb structures. We also investigated human action on pedestal boulders (PBs), which had been modified by sculpting, splitting, and cutting away. Our first goal was to show human action on structures by using ...
Migration In The Social Stage Of Dictyostelium Discoideum Amoebae Impacts Competition, 2015 Washington University in St Louis
Migration In The Social Stage Of Dictyostelium Discoideum Amoebae Impacts Competition, Chandra N. Jack, Neil J. Buttery, Boahemaa Adu-Oppong, Michael Powers, Christopher R.L. Thompson, David Queller, Joan E. Strassmann
Biology Faculty Publications & Presentations
Interaction conditions can change the balance of cooperation and conflict in multicellular groups. After aggregating together, cells of the social amoeba Dictyostelium discoideum may migrate as a group (known as a slug) to a new location. We consider this migration stage as an arena for social competition and conflict because the cells in the slug may not be from a genetically homogeneous population. In this study, we examined the interplay of two seemingly diametric actions, the solitary action of kin recognition and the collective action of slug migration in D. discoideum, to more fully understand the effects of social competition ...
Ecosystems Of The Chester, Ridley, And Crum Watersheds – Life Sustaining Life, 2015 West Chester University of Pennsylvania
Ecosystems Of The Chester, Ridley, And Crum Watersheds – Life Sustaining Life, Walter Cressler
No abstract provided.
Experimental Evidence Of Bark Beetle Adaptation To A Fungal Symbiont, 2015 University of Montana - Missoula
Experimental Evidence Of Bark Beetle Adaptation To A Fungal Symbiont, Bracewell R. Ryan, Diana Six
Ecosystem and Conservation Sciences Faculty Publications
The importance of symbiotic microbes to insects cannot be overstated; however, we have a poor understanding of the evolutionary processes that shape most insect–microbe interactions. Many bark beetle (Coleoptera: Curculionidae, Scolytinae) species are involved in what have been described as obligate mutualisms with symbiotic fungi. Beetles benefit through supplementing their nutrient- poor diet with fungi and the fungi benefit through gaining transportation to resources. However, only a few beetle–fungal symbioses have been experimentally manipulated to test whether the relationship is obligate. Furthermore, none have tested for adaptation of beetles to their specific symbionts, one of the requirements for ...
Odorant Receptor-Based Discovery Of Natural Repellents Of Human Lice, 2015 University of California-Davis
Odorant Receptor-Based Discovery Of Natural Repellents Of Human Lice, Julien Pelletier, Pingxi Xu, Kyong-Sup Yoon, John M. Clark, Walter S. Leal
SIUE Faculty Research, Scholarship, and Creative Activity
The body louse, Pediculus humanus humanus, is an obligate blood-feeding ectoparasite and an important insect vector that mediates the transmission of diseases to humans. The analysis of the body louse genome revealed a drastic reduction of the chemosensory gene repertoires when compared to other insects, suggesting specific olfactory adaptations to host specialization and permanent parasitic lifestyle. Here, we present for the first time functional evidence for the role of odorant receptors (ORs) in this insect, with the objective to gain insight into the chemical ecology of this vector. We identified seven putative full-length ORs, in addition to the odorant receptor ...
Isotopic Discrimination In The Double-Crested Cormorant (Phalacrocorax Auritus), 2015 Cornell University
Isotopic Discrimination In The Double-Crested Cormorant (Phalacrocorax Auritus), Elizabeth C. Craig, Brian S. Dorr, Katie C. Hanson-Dorr, Jed P. Sparks, Paul D. Curtis
Brian S Dorr
The diet-tissue discrimination factor is the amount by which a consumer’s tissue varies isotopically from its diet, and is therefore a key element in models that use stable isotopes to estimate diet composition. In this study we measured discrimination factors in blood (whole blood, red blood cells and plasma), liver, muscle and feathers of Double- crested Cormorants (Phalacrocorax auritus) for stable isotope ratios of carbon, nitrogen and sulfur. Cormorants exhibited discrimination factors that differed significantly among tissue types (for carbon and nitrogen), and differed substantially (in the context of the isotopic variation among relevant prey species) from those observed ...
Mapping The Movement Of Overwintering Western Monarch Butterflies (Danaus Plexippus) At The Pismo Beach Monarch Butterfly Grove Using Arcgis Software, Brett Johnson, Jesse Wycko, Daniel Goldthwaite, Tyler Brown
Dr. Villablanca of the Cal Poly Biology Department commissioned this project with the goal of tracking Monarch Butterfly spatial redistribution in anticipation of or response to severe weather events. We believe that Monarchs cluster non-preferentially on introduced Eucalyptus trees until midwinter when they begin to cluster preferentially on native conifers. Based on the efforts of a previous group of students, it has been deter- mined that, over a two-week time period in mid-winter, Monarchs spend the majority of their time on native conifers. We set out to clearly demonstrate Monarch Butterfly spatial redistribution in either anticipation of or response to ...
Métodos Cuantitativos Para La Conservación De Los Vertebrados, 2015 University of Georgia
Métodos Cuantitativos Para La Conservación De Los Vertebrados, Michael J. Conroy, John P. Carroll, Juan Carlos Senar, Jeffrey J. Thompson
Papers in Natural Resources
Este libro es destinado para el uso por biólogos del campo y otras personas, incluso biólogos de campo en el futuro que podrían estar en un curso de la universidad y trabajando en estudios y conservación de animales. Nuestro objetivo es que los biólogos usen este libro como (haciendo apología a nuestro colega Evan Cooch) una “introducción suave” al campo de la ecología cuantitativa. Esperamos convencer a los lectores que los métodos y aproximaciones del libro no son solo para los matemáticos, estadísticos y programadores de computadoras, sino que de hecho son herramientas esenciales para practicar la conservación en el ...