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Articles 721 - 750 of 1150
Full-Text Articles in Zoology
Metazoan Endoparasites Of The Gray Fox, Urocyon Cinereoargenteus From New Mexico, John E. Ubelaker, Bretton S. Griffin, Genevieve M. Konicke, Nora Abdullah, Aya Mouhaffel, Donald W. Duszynski, Robert L. Harrison
Metazoan Endoparasites Of The Gray Fox, Urocyon Cinereoargenteus From New Mexico, John E. Ubelaker, Bretton S. Griffin, Genevieve M. Konicke, Nora Abdullah, Aya Mouhaffel, Donald W. Duszynski, Robert L. Harrison
MANTER: Journal of Parasite Biodiversity
Metazoan gastrointestinal endoparasites were recovered from 10 of 14 (71.4%) gray foxes [Urocyon cinereoargenteus (Schreber, 1775)] collected in New Mexico from 1996 -1998. They include a pentastome Porocephalus sp., (n=1, 7.1%), a trematode: Fasciola hepatica Linnaeus, 1758 (n=1, 7.1%), the nematodes: Physaloptera rara Hall and Wigdor, 1918 (n=3, 14.3%), Physaloptera praeputialis Linstow, 1899 (n=2, 14.3%), an unidentified female Physaloptera sp. (n=1, 7.1%), Toxocara mystax (Zeder, 1800) (n=2, 14.3%), Toxocara canis (Werner, 1782) (n=1, 7.1%), Spirocerca lupi (Rudolphi, 1809) (n=6, 42.9%), and cestodes: Taenia pisiformis (Bloch, 1780) n=3, n=3, (21.4%), Taenia serialis (Gervais, 1847) (n=3, 21.4%), and Mesocestoides …
At Home And At Large In The Great Plains: Essays And Memories, Paul A. Johnsgard
At Home And At Large In The Great Plains: Essays And Memories, Paul A. Johnsgard
Zea E-Books Collection
This volume presents fourteen essays (some updated) that originally appeared in Prairie Fire, a monthly free newspaper that for seven years (as of 2015) has carried important messages of social, environmental, and economic issues in a mature and nonpartisan manner to tens of thousands of residents of Nebraska, western Iowa, eastern Colorado, and southern South Dakota, and by mail to subscribers in the rest of the world. These essays discuss the North American east-west ecological boundaries, spring migration events, birds at the bird feeder, feathered survivors of a glacial past, the threatened sharp-tailed grouse of Nebraska and South Dakota, and …
Seasonal Dynamics And Micro-Climatic Preference Of Two Alpine Endemic Hypogean Beetles, Stefano Mammola, Elena Piano, Pier Mauro Giachino, Marco Isaia
Seasonal Dynamics And Micro-Climatic Preference Of Two Alpine Endemic Hypogean Beetles, Stefano Mammola, Elena Piano, Pier Mauro Giachino, Marco Isaia
International Journal of Speleology
Hypogean beetles generally live in stable environments, characterized by constant temperature and high relative humidity. Changes in the underground microclimatic conditions generally induce local migrations of the beetles through the hypogean environment in search of suitable microhabitats. We studied the seasonal dynamics and the micro-climatic preference of two Alpine endemic hypogean beetles - Sphodropsis ghilianii (Coleoptera, Carabidae) and Dellabeffaella roccae (Coleoptera, Cholevidae) - in the hypogean complex of Pugnetto (Graian Alps, Italy). We surveyed the two species for one year, using baited pitfall traps and measuring temperature and humidity along the two main caves. We used logistic regression mixed models …
How Access To Plant & Animal Books Affects Participation In Conservation Activities, Dustin Ingram, Hassnaa Ingram
How Access To Plant & Animal Books Affects Participation In Conservation Activities, Dustin Ingram, Hassnaa Ingram
Library Philosophy and Practice (e-journal)
Abstract
Public libraries are an important resource for communities. Access to plant and animal books impacts a communities’ ability to learn about their environment. In this study, the number of plant and animal books available to people through local libraries in northern Kentucky, and neighboring counties in Ohio and Indiana were counted and a survey assessing one’s preferences and likeliness to participate in conservation activities was distributed to local residents. Based on the collected data, a statistically significant relationship (p < 0.05) was found between access to plant and animal books available at local libraries and the likelihood of people to participate in conservation activities. Further analysis was performed between the total number of shelved plant and animal books at local libraries, the total number of shelved juvenile plant and animal books and the shelved adult plant and animal books, and the total number of plant and animal books in libraries compared to the local household income and number of households near a library. This study found that people that read books about plants and animals were more likely to participate in conservation activities associated with their book preference. This study also found that people living in low-income communities with fewer households are less likely to participate in plant and animal conservation, as compared to higher-income communities with a higher number of households. Additionally, this study found that lower income areas have fewer plant and animal books on the library shelves than higher income areas. Consequently, study results suggest that if more plant and animal books were made available to low-income areas and areas of biological importance through libraries, people may be more likely to conserve the wildlife around them.
The Suitability Of Habitats And The Effects Of Human Activities In Osupuko And Olepolos Wildlife Sanctuaries On Maasai Giraffes, Sydney P. Davis
The Suitability Of Habitats And The Effects Of Human Activities In Osupuko And Olepolos Wildlife Sanctuaries On Maasai Giraffes, Sydney P. Davis
Undergraduate Honors Theses
Habitat quality and resource availability within wildlife dispersal areas in the Amboseli ecosystem are experiencing degradation due to pastoralism and agriculture by humans, which negatively affects the wildlife species that utilize these dispersal areas. Maasai giraffes are a common species that utilize these areas, but information on how human activities and the presence of domestic livestock affects the Maasai giraffe is limited. This study was conducted in two wildlife sanctuaries: Osupuko and Olepolos. Habitat condition assessment was done to determine the quality of habitats found within each sanctuary. The Point-Centered Quadrat Method was used to determine the number of five …
Background Paper On Systematics, Invasive Species Advisory Committee
Background Paper On Systematics, Invasive Species Advisory Committee
National Invasive Species Council
The Invasive Species Advisory Committee (ISAC) makes recommendations to the Federal government agencies that have an invasive species portfolio. This systematics recommendation strives to motivate action in the agencies that have been identified in the Situation Report as the agencies with systematics capabilities in the Federal government.
The USDA Agricultural Research Service (ARS) and the Smithsonian Institution are repositories of a large amount of the systematics collections and human capabilities for systematics essential work on invasive species. Conducting the Survey of their systematics capabilities and needs is urgent. The Survey will describe actions in research, specimen-based collections, a biodiversity informatics …
A Systematic Review Of The Soricimorph Eulipotyphla (Soricidae: Mammalia) From The Gray Fossil Site (Hemphillian), Tennessee, Joshua Doby
Electronic Theses and Dissertations
Due in part to the incompleteness of the Cenozoic fossil record in the eastern U.S., the evolution and immigration of shrews (Soricidae) is not well understood. A rich soricid fauna from the Gray Fossil Site (GFS), Washington County, TN, has enabled many new inferences to be made. There are 7 new species in 6 genera: Paenelimnoecus, “Blarinella”, Petenyia, Tregosorex, Crusafontina, and Gen et sp. nov. GFS species of the genera Paenelimnoecus, “Blarinella”, and Petenyia are the first occurrence of each genus in the New World. Tregosorex, Crusafontina, and the N.A. taxon Limnoecus all have their latest documented occurrence at the …
Two New Euscorpius Species From Central-Western Greece (Scorpiones: Euscorpiidae), Gioele Tropea, Victor Fet
Two New Euscorpius Species From Central-Western Greece (Scorpiones: Euscorpiidae), Gioele Tropea, Victor Fet
Euscorpius
Two new Euscorpius species are described, based on specimens collected by P.M. Giachino & D. Vailati in central-western Greece in neighboring Aitoloakarnania (Western Greece) and Fokida (Central Greece) regional units. No Euscorpius specimens were previously available from this area. The first new species, Euscorpius giachinoi sp. n., is very similar to a recently described E. birulai Fet et al., 2014 from Euboea Island, and is also characterized by a low trichobothrial count (Pv = 7, et = 5), a low pectinal teeth count (Dp = 7 in males, 6 in females), and long-limbed features. The second species, …
Fauna Census Of Intertidal Cliffs, Mangapwani, Zanzibar, Emily Jankowski
Fauna Census Of Intertidal Cliffs, Mangapwani, Zanzibar, Emily Jankowski
Independent Study Project (ISP) Collection
Due to their extreme variations in condition over the course of a day, intertidal zones are challenging environments. Organisms that live there must be prepared to cope with both exposure and submersion, not to mention the temperature variations that accompany these conditions. The differing tolerances and adaptations of various organisms to these conditions generally cause patterns of vertical zonation to occur in the intertidal zone, especially when the shore is steep and rocky. Understanding the ecology of shore environments is important to future conservation and management efforts. This study was conducted on a beach in Mangapwani, Zanzibar at at 6˚ …
A Comparison Of The Genetic Diversity Of The Class Ii Major Histocompatibility Complex In Ex Situ And In Situ Populations Of African Penguins (Spheniscus Demersus), Emily Willmer
Undergraduate Honors Thesis Projects
As an endangered species, the African penguin (Spheniscus demersus) is at risk of becoming extinct in the wild due to destruction of their coastal habitat and reduction in food availability. The development of a genetically diverse and healthy captive population is important in helping to conserve the species. The goal of this project was to determine the genetic diversity of the class II major histocompatibility complex (MHC) of a wild population of African penguins and compare it to the diversity of the captive population at Mystic Aquarium in Mystic, Connecticut that has previously been studied. We found that …
Historical And Contemporary Demography Of Leaf-Toed Geckos (Phyllodactylidae: Phyllodactylus) In The Mexican Dry Forest, Christopher Blair, Victor H. Jiménez Arcos, Fausto R. Méndez De La Cruz, Robert W. Murphy
Historical And Contemporary Demography Of Leaf-Toed Geckos (Phyllodactylidae: Phyllodactylus) In The Mexican Dry Forest, Christopher Blair, Victor H. Jiménez Arcos, Fausto R. Méndez De La Cruz, Robert W. Murphy
Publications and Research
Disentangling the relative influence of historical versus contemporary processes shaping the spatial distribution of genetic variation is critical if we are to effectively mitigate key biodiversity issues. We utilize a comprehensive approach based on different molecular marker types and analytical methods to understand the demographic consequences of recent habitat fragmentation in a spatially explicit context. We focus our efforts on native leaf-toed geckos (Phyllodactylus tuberculosus saxatilis) throughout fragmented habitat in the tropical dry forest of northern Mexico as recent evidence suggests that geographic ranges for these geckos may be much smaller than currently realized. However, no data are …
Tallgrass Prairie Vegetation Response To Spring Fires And Bison Grazing, Stephen L. Winter, Brady W. Allred, Karen R. Hickman, Samuel D. Fuhlendorf
Tallgrass Prairie Vegetation Response To Spring Fires And Bison Grazing, Stephen L. Winter, Brady W. Allred, Karen R. Hickman, Samuel D. Fuhlendorf
School of Natural Resources: Faculty Publications
Spring fires in tallgrass prairie can create environmental conditions conducive to plant growth in the subsequent growing season. Following fires, burned areas can also be attractive to grazing animals such as bison (Bison bison). Sustained grazing activity within recently burned areas can alter vegetation structure relative to nearby landscape patches that haven’t burned recently. In 2007, we collected data on bison grazing activity, vegetation structure, and the growth and reproduction of a perennial forb, Arnoglossum plantagineum, in Oklahoma tallgrass prairie. We compared these variables in landscape patches that had burned in the spring of 2007 to measurements …
Recurrent Evolution Of Melanism In South American Felids, Alexsandra Schneider, Corneliu Henegar, Kenneth Day, Devin Absher, Constanza Napolitano, Leandro Silveira, Victor A. David, Stephen J. O'Brien, Marilyn Menotti-Raymond, Gregory S. Barsh, Eduardo Eizirik
Recurrent Evolution Of Melanism In South American Felids, Alexsandra Schneider, Corneliu Henegar, Kenneth Day, Devin Absher, Constanza Napolitano, Leandro Silveira, Victor A. David, Stephen J. O'Brien, Marilyn Menotti-Raymond, Gregory S. Barsh, Eduardo Eizirik
Biology Faculty Articles
Morphological variation in natural populations is a genomic test bed for studying the interface between molecular evolution and population genetics, but some of the most interesting questions involve non-model organisms that lack well annotated reference genomes. Many felid species exhibit polymorphism for melanism but the relative roles played by genetic drift, natural selection, and interspecies hybridization remain uncertain. We identify mutations of Agouti signaling protein (ASIP) or the Melanocortin 1 receptor (MC1R) as independent causes of melanism in three closely related South American species: the pampas cat (Leopardus colocolo), the kodkod (Leopardus guigna), and Geoffroy’s cat …
Hymenolepis Folkertsi N. Sp. (Eucestoda: Hymenolepididae) In The Oldfield Mouse Peromyscus Polionotus (Wagner) (Rodentia: Cricetidae: Neotominae) From The Southeastern Nearctic With Comments On Tapeworm Faunal Diversity Among Deer Mice, Arseny A. Makarikov, Todd N. Nims, Kurt E. Galbreath, Eric P. Hoberg
Hymenolepis Folkertsi N. Sp. (Eucestoda: Hymenolepididae) In The Oldfield Mouse Peromyscus Polionotus (Wagner) (Rodentia: Cricetidae: Neotominae) From The Southeastern Nearctic With Comments On Tapeworm Faunal Diversity Among Deer Mice, Arseny A. Makarikov, Todd N. Nims, Kurt E. Galbreath, Eric P. Hoberg
Harold W. Manter Laboratory of Parasitology: Faculty Publications
A previously unrecognized species of hymenolepidid cestode attributable to Hymenolepis is described based on specimens in Peromyscus polionotus, oldfield mouse, from Georgia, United States, near the southeastern coast of continental North America. Specimens of Hymenolepis folkertsi n. sp. differ from those attributed to most other species in the genus by having testes arranged in a triangle and a scolex with a prominent rostrum-like protrusion. The newly recognized species is further distinguished by the relative position and length of the cirrus sac, shape of seminal receptacle, and relative size of external seminal vesicle and seminal receptacle. Hymenolepidid cestodes have sporadically …
Clues To Aquatic Beetle Research In Southeast Asia: A Multitude Of Ecological Niches, Microhabitats And Deduced Field Sampling Techniques, Hendrik Freitag
Clues To Aquatic Beetle Research In Southeast Asia: A Multitude Of Ecological Niches, Microhabitats And Deduced Field Sampling Techniques, Hendrik Freitag
Biology Faculty Publications
The basic ecological classification of Southeast Asian beetle families that are associated with aquatic habitats is reviewed. The microhabitat preferences of the taxa are examined on family level with generic examples. Suitable collection methods for quantitative and qualitative sampling are suggested which take into account the different ecological adaptation patterns and microhabitat preferences.
Earthworm, Microbial Biomass, And Leaf Litter Decay Responses After Invasive Honeysuckle Shrub Removal From Urban Woodlands., Robert Preston Pipal
Earthworm, Microbial Biomass, And Leaf Litter Decay Responses After Invasive Honeysuckle Shrub Removal From Urban Woodlands., Robert Preston Pipal
Electronic Theses and Dissertations
Invasive species are one of the leading causes of biodiversity loss and their presence can significantly impact the structure and function of native ecosystems. In this dissertation, the impacts of the invasive honeysuckle shrub, Lonicera maackii, on exotic earthworm populations, leaf litter decay responses, and inorganic and organic nutrient pools in an urban woodland park are assessed. Chapter 1 provides a brief review of honeysuckle's effects on forest ecosystems. Chapter 2 describes honeysuckle’s effects on exotic earthworm populations and the seasonal importance of macroinvertebrates to leaf litter decomposition in urban woodlands. This study revealed that L. maackii promoted higher exotic …
Restoration Of Bison (Bison Bison) To Agate Fossil Beds National Monument, A Feasibility Study, Daniel S. Licht
Restoration Of Bison (Bison Bison) To Agate Fossil Beds National Monument, A Feasibility Study, Daniel S. Licht
United States National Park Service: Publications
Executive Summary
Agate Fossil Beds National Monument is a 3,057-acre park located in western Nebraska. The unit is comprised of northern mixed-grass prairie vegetation, typical of the Northern Great Plains. Weather, fire, and grazing are generally considered to be the ecological drivers of prairie ecosystems and critical for prairie health. However, grazing has essentially been absent since the 1960s. In 2014, a Department of the Interior report explicitly listed the park as a high priority for bison restoration. This report evaluates the feasibility, management options, benefits, and challenges of restoring bison to Agate Fossil Beds National Monument.
A potential bison …
Natural Infections Of Tetrathyridia Of Mesocestoides Species In Deer Mice, Peromyscus Maniculatus, From New Mexico, John E. Ubelaker, Nora Abdullah, Aya Mouhaffel, Rashmi Ananadampillair, Caitlyn Emigh, Scott Lyell Gardner
Natural Infections Of Tetrathyridia Of Mesocestoides Species In Deer Mice, Peromyscus Maniculatus, From New Mexico, John E. Ubelaker, Nora Abdullah, Aya Mouhaffel, Rashmi Ananadampillair, Caitlyn Emigh, Scott Lyell Gardner
Papers in Parasitology
At Southern Methodist University campus about 6 miles south of Taos, New Mexico, we recovered tetrathyridia of Mesocestoides in five Peromyscus maniculatus in the summers of 2008 (3 of 129, 0.023%), 2009 (0 of 98, 0%), 2010 (1 of 112, 0.008%), 2011 (0 of 88, 0%), and 2012 (1 of 86, 0.011%). Tetrathyridia from the body cavity of one of the five infected mice were injected into the peritoneal cavity of laboratory white mice, Mus musculus. Our later examination of the laboratory mice revealed heavy infections of tetrathyridia continuing to reproduce asexually. Here we provide important new information on …
Natural Infections Of Tetrathyridia Of Mesocestoides Species In Deer Mice, Peromyscus Maniculatus, From New Mexico, John E. Ubelaker, Norah Abdullah, Aya Mouhaffel, Rashmi Ananadampillair, Caitlyn Emigh, Scott Lyell Gardner
Natural Infections Of Tetrathyridia Of Mesocestoides Species In Deer Mice, Peromyscus Maniculatus, From New Mexico, John E. Ubelaker, Norah Abdullah, Aya Mouhaffel, Rashmi Ananadampillair, Caitlyn Emigh, Scott Lyell Gardner
Harold W. Manter Laboratory of Parasitology: Faculty Publications
At Southern Methodist University campus about 6 miles south of Taos, New Mexico, we recovered tetrathyridia of Mesocestoides in five Peromyscus maniculatus in the summers of 2008 (3 of 129, 0.023%), 2009 (0 of 98, 0%), 2010 (1 of 112, 0.008%), 2011 (0 of 88, 0%), and 2012 (1 of 86, 0.011%). Tetrathyridia from the body cavity of one of the five infected mice were injected into the peritoneal cavity of laboratory white mice, Mus musculus. Our later examination of the laboratory mice revealed heavy infections of tetrathyridia continuing to reproduce asexually. Here we provide important new information on the …
Annotated Features Of Domestic Cat – Felis Catus Genome, Gaik Tamazian, Serguei Simonov, Pavel Dobrynin, Alexey Makunin, Anton Logachev, Aleksey Komissarov, Andrey Shevchenko, Vladimir Brukhin, Nikolay Cherkasov, Anton Svitin, Klaus-Peter Koepfli, Joan Pontius, Carlos A. Driscoll, Kevin Blackistone, Cristina Barr, David Goldman, Agostinho Antunes, Javier Quilez, Belen Lorente-Galdos, Can Alkan, Tomas Marques-Bonet, Marilyn Menotti-Raymond, Victor A. David, Kristina Narfstrom, Stephen J. O'Brien
Annotated Features Of Domestic Cat – Felis Catus Genome, Gaik Tamazian, Serguei Simonov, Pavel Dobrynin, Alexey Makunin, Anton Logachev, Aleksey Komissarov, Andrey Shevchenko, Vladimir Brukhin, Nikolay Cherkasov, Anton Svitin, Klaus-Peter Koepfli, Joan Pontius, Carlos A. Driscoll, Kevin Blackistone, Cristina Barr, David Goldman, Agostinho Antunes, Javier Quilez, Belen Lorente-Galdos, Can Alkan, Tomas Marques-Bonet, Marilyn Menotti-Raymond, Victor A. David, Kristina Narfstrom, Stephen J. O'Brien
Biology Faculty Articles
Background: Domestic cats enjoy an extensive veterinary medical surveillance which has described nearly 250 genetic diseases analogous to human disorders. Feline infectious agents offer powerful natural models of deadly human diseases, which include feline immunodeficiency virus, feline sarcoma virus and feline leukemia virus. A rich veterinary literature of feline disease pathogenesis and the demonstration of a highly conserved ancestral mammal genome organization make the cat genome annotation a highly informative resource that facilitates multifaceted research endeavors.
Findings: Here we report a preliminary annotation of the whole genome sequence of Cinnamon, a domestic cat living in Columbia (MO, USA), …
The Dynamic Proliferation Of Cansines Mirrors The Complex Evolution Of Feliforms, Kathryn B. Walters-Conte, Diana L. E. Johnson, Warren E. Johnson, Stephen J. O'Brien, Jill Pecon-Slattery
The Dynamic Proliferation Of Cansines Mirrors The Complex Evolution Of Feliforms, Kathryn B. Walters-Conte, Diana L. E. Johnson, Warren E. Johnson, Stephen J. O'Brien, Jill Pecon-Slattery
Biology Faculty Articles
Background: Repetitive short interspersed elements (SINEs) are retrotransposons ubiquitous in mammalian genomes and are highly informative markers to identify species and phylogenetic associations. Of these, SINEs unique to the order Carnivora (CanSINEs) yield novel insights on genome evolution in domestic dogs and cats, but less is known about their role in related carnivores. In particular, genome-wide assessment of CanSINE evolution has yet to be completed across the Feliformia (cat-like) suborder of Carnivora. Within Feliformia, the cat family Felidae is composed of 37 species and numerous subspecies organized into eight monophyletic lineages that likely arose 10 million years ago. Using …
New Species Of Ctenomys Blainville 1826 (Rodentia: Ctenomyidae) From The Lowlands And Central Valleys Of Bolivia, Scott Lyell Gardner, Jorge Salazar-Bravo, Joseph A. Cook
New Species Of Ctenomys Blainville 1826 (Rodentia: Ctenomyidae) From The Lowlands And Central Valleys Of Bolivia, Scott Lyell Gardner, Jorge Salazar-Bravo, Joseph A. Cook
Harold W. Manter Laboratory of Parasitology: Faculty Publications
The genus Ctenomys Blainville 1826 is one of the most diverse of South American hystricognath rodents. Currently, nine species of tuco-tucos are reported from Bolivia, four at elevations above 2,000 m and five inhabiting the lowlands (< 1,000 m). In the present paper, morphology, karyology, and phylogenetic analyses of DNA sequences for a mitochondrial locus were used to assess the taxonomic status of specimens of Ctenomys from localities beyond the previously known ranges of these rodents in the departments of Chuquisaca, Cochabamba, Santa Cruz, and Tarija. Based on these analyses, we describe four new species in the genus Ctenomys, all apparently endemic to the country. In addition, we place Ctenomys goodfellowi Thomas 1921 in synonymy under C. boliviensis Waterhouse 1848 and confirm the presence of C. nattereri …
Coral-Fish Dynamics And Interactions: A Case Study Of Grand Cayman, Eileen Shea Davis
Coral-Fish Dynamics And Interactions: A Case Study Of Grand Cayman, Eileen Shea Davis
Lawrence University Honors Projects
To better understand the ecological interactions of coral reefs, it is important to understand the mechanisms that control the distribution and abundance of reef-building corals as well as the mechanisms that control the diversity and abundance of the fish community that inhabits these reef habitats. The purpose of this study was to identify specific coral-fish interactions among the reefs of Grand Cayman in order to gain insight into the biological effects of fish on the assemblage of hard corals. Using data collected by the Lawrence University Marine Program (LUMP), a number of exploratory statistical analyses were run in order to …
Western Massasauga (Sistrurus Tergeminus): Species Conservation Assessment, Melissa J. Panella, Brent D. Johnson
Western Massasauga (Sistrurus Tergeminus): Species Conservation Assessment, Melissa J. Panella, Brent D. Johnson
Nebraska Game and Parks Commission: Publications
The primary goal in development of at-risk species conservation assessments is to compile biological and ecological information that may assist conservation practitioners in making decisions regarding the conservation of species of interest. The Nebraska Natural Legacy Project recognizes the Western Massasauga (Sistrurus tergeminus) as a Tier I at-risk species. Provided are some general management recommendations regarding Western Massasaugas. Conservation practitioners will need to use professional judgment to make specific management decisions based on objectives, location, and a multitude of variables. This resource was designed to share available knowledge of this at-risk species that will aid in the decision-making process or …
Level Of Uv-B Radiation Influences The Effects Of Glyphosate-Based Herbicide On Fitness Of The Spotted Salamander, Nicholas A. Levis
Level Of Uv-B Radiation Influences The Effects Of Glyphosate-Based Herbicide On Fitness Of The Spotted Salamander, Nicholas A. Levis
Masters Theses & Specialist Projects
Numerous causes have been implicated in contributing to amphibian population declines since the 1980's, with habitat modification, ultraviolet radiation (UV-B) and environmental contaminants (such as glyphosate-based herbicide) being among the most common. This study identifies the effects of a generic glyphosate-based herbicide (GLY- 4 Plus) on mortality, immune function, body condition, and morphological plasticity of larvae of the spotted salamander (Ambystoma maculatum) under conditions that reflect open and closed canopy light regimes. Larval salamander responses to glyphosate-based herbicide varied depending on UV-B conditions. In general, it appears that an open canopy (i.e. greater UV-B exposure) may confer fitness benefits. In …
Histopathologic Aspects In Plagioscion Squamosissimus (Heckel, 1940) Induced By Neoechinorhynchus Veropesoi, Metacestodes And Anisakidae Juveniles = Aspectos Histopatólogicos Em Plagioscion Squamosissimus Induzidos Por Neoechinorhynchus Veropesoi, Metacestódeos E Juvenis Da Família Anisakidae, Francisco Tiago De Vasconcelos Melo, Rogério Antonio Ribeiro Rodrigues, Elane Guerreiro Giese, Scott Lyell Gardner, Jeannie Nascimento Dos Santos
Histopathologic Aspects In Plagioscion Squamosissimus (Heckel, 1940) Induced By Neoechinorhynchus Veropesoi, Metacestodes And Anisakidae Juveniles = Aspectos Histopatólogicos Em Plagioscion Squamosissimus Induzidos Por Neoechinorhynchus Veropesoi, Metacestódeos E Juvenis Da Família Anisakidae, Francisco Tiago De Vasconcelos Melo, Rogério Antonio Ribeiro Rodrigues, Elane Guerreiro Giese, Scott Lyell Gardner, Jeannie Nascimento Dos Santos
Scott L. Gardner Publications
Abstract
Plagioscion squamosissimus (Heckel 1840), a fish endemic to the Amazon Basin and commonly known as the “silver croaker,” plays an important role in the ecology and economy of Pará State, Brazil. Knowledge of host-parasite relationships is important to understanding the role of parasites in the control of natural host populations. This work describes histopathological aspects caused by several common intestinal parasites found during a helminthological survey of fish in northern Brazil. We observed a high prevalence of helminth infection, especially by J3 nematode juveniles of the family Anisakidae and metacestodes of the family Protocephalidae (both with 100% prevalence). …
Hymenolepis Robertrauschi N. Sp. From Grasshopper Mice Onychomys Spp. In New Mexico And Nebraska, U.S.A., Scott Lyell Gardner, Brent A. Luedders, Donald W. Duszynski
Hymenolepis Robertrauschi N. Sp. From Grasshopper Mice Onychomys Spp. In New Mexico And Nebraska, U.S.A., Scott Lyell Gardner, Brent A. Luedders, Donald W. Duszynski
Harold W. Manter Laboratory of Parasitology: Faculty Publications
From 1989 through 1998, a total of 358 grasshopper mice were collected and examined for helminth and protistan parasites from several habitat types on the Sevilleta Long Term Ecological Research (LTER) site in New Mexico, U.S.A. Of these, 205 individuals were identified as Onychomys leucogaster (Wied-Neuwied 1841) and 153 individuals were classified as O. arenicola Mearns 1896. Many individuals of Onychomys were infected with a new species of Hymenolepididae (Hymenolepis robertrauschi), which is herein described, illustrated, and compared with all species of Nearctic Hymenolepis s. str. Hymenolepis robertrauschi was found in 26% of the individuals of O. arenicola …
Averting Lemur Extinctions Amid Madagascar's Political Crisis, Christoph Schwitzer, Russell Mittermeier, Steig Johnson, Giuseppe Donati, Mitchell Irwin, Heather Peacock, Jonah Ratsimbazafy, Josia Razafindramanana, Edward E. Louis, Lounes Chikhi, Ian C. Colquhoun, Jennifer Tinsman, Ranier Dolch, Marni Lafleur, Stephen Nash, Erik Patel, Blanchard Randrianambinina, Tove Rasolofoharivelo, Patricia C. Wright
Averting Lemur Extinctions Amid Madagascar's Political Crisis, Christoph Schwitzer, Russell Mittermeier, Steig Johnson, Giuseppe Donati, Mitchell Irwin, Heather Peacock, Jonah Ratsimbazafy, Josia Razafindramanana, Edward E. Louis, Lounes Chikhi, Ian C. Colquhoun, Jennifer Tinsman, Ranier Dolch, Marni Lafleur, Stephen Nash, Erik Patel, Blanchard Randrianambinina, Tove Rasolofoharivelo, Patricia C. Wright
Anthropology Publications
The most threatened mammal group on Earth, Madagascar’s five endemic lemur families (lemurs are found nowhere else), represent more than 20% of the world’s primate species and 30% of family-level diversity. This combination of diversity and uniqueness is unmatched by any other country—remarkable considering that Madagascar is only 1.3 to 2.9% the size of the Neotropics, Africa, or Asia, the other three landmasses where nonhuman primates occur. But lemurs face extinction risks driven by human disturbance of forest habitats. We discuss these challenges and reasons for hope in light of site-specific, local actions proposed in an emergency conservation action plan.
The Longhorn Beetles (Coleoptera: Cerambycidae) Of Nebraska, Usa: New State Records, A Checklist Of Known Species, And Distribution Maps, Stephen M. Spomer
The Longhorn Beetles (Coleoptera: Cerambycidae) Of Nebraska, Usa: New State Records, A Checklist Of Known Species, And Distribution Maps, Stephen M. Spomer
University of Nebraska State Museum: Entomology Papers
One hundred eighty-three species/subspecies of longhorn beetles are recorded from Nebraska, an increase of 19 species since 1971. The greatest number of recent discoveries have come from sites along the Missouri River, especially Indian Cave State Park in southeastern Nebraska, as well as the Pine Ridge at Chadron, Nebraska.
Resurrection And Redescription Of Varestrongylus Alces (Nematoda: Protostrongylidae), A Lungworm Of The Eurasian Moose (Alces Alces), With Report On Associated Pathology, Guilherme G. Verocai, Eric P. Hoberg, Turid Vikøren, Kjell Handeland, Bjørnar Ytrehus, Andrew M. Rezansoff, Rebecca K. Davidson, John S. Gilleard, Susan J. Kutz
Resurrection And Redescription Of Varestrongylus Alces (Nematoda: Protostrongylidae), A Lungworm Of The Eurasian Moose (Alces Alces), With Report On Associated Pathology, Guilherme G. Verocai, Eric P. Hoberg, Turid Vikøren, Kjell Handeland, Bjørnar Ytrehus, Andrew M. Rezansoff, Rebecca K. Davidson, John S. Gilleard, Susan J. Kutz
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Background: Varestrongylus alces, a lungworm in Eurasian moose from Europe has been considered a junior synonym of Varestrongylus capreoli, in European roe deer, due to a poorly detailed morphological description and the absence of a type-series.
Methods: Specimens used in the redescription were collected from lesions in the lungs of Eurasian moose, from Vestby, Norway. Specimens were described based on comparative morphology and integrated approaches. Molecular identification was based on PCR, cloning and sequencing of the ITS-2 region of the nuclear ribosomal DNA. Phylogenetic analysis compared V. alces ITS-2 sequences to these of other Varestrongylus species …