Indicators Of Pasture Digression In Steppe Ecosystems Of Mongolia,
2012
Russian Academy of Sciences
Indicators Of Pasture Digression In Steppe Ecosystems Of Mongolia, Elena V. Danzhalova, S. N. Bazha, P. D. Gunin, Yu. I. Drobyshev, T. I. Kazantseva, A. V. Prischepa, N. N. Slemnev, E. Ariunbold
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The research shows that widely used key measures of vegetation structure (species diversity, projected cover and above-ground phytomass) are not always suitable as indicators of pasture degradation. Based on an analysis above-ground phytomass composition, new quantitative indices are offered that give a more realistic picture of rangeland condition in Mongolia.
Some Taxonomic Records Of Aquatic Insects In The Eroo River Basin (West Khentii, Northern Mongolia),
2012
National University of Mongolia
Some Taxonomic Records Of Aquatic Insects In The Eroo River Basin (West Khentii, Northern Mongolia), Purevdorj Surenkhorloo, Ravchig Samiya, Jolanta Slowik, Michael Mühlenberg
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
In the Eroo basin of Mongolia, many species of aquatic insects have been recorded including five species of Diptera in the families Psychodidae, Dixidae, and Blephaceridae and 25 species across eight families of stoneflies. One species of Psychodidae, Bazarella baikalensis Wagner is reported for the first time in Mongolia while the other families are discussed and a species list is provided for the country.
Structure And Productivity Of Haloxylon Ammodendron Communities In The Mongolian Gobi,
2012
Russian Academy of Sciences
Structure And Productivity Of Haloxylon Ammodendron Communities In The Mongolian Gobi, Tamara I. Kazantseva, Nikolay N. Slemnev, Pjotr D. Gunin, Sh. Tsooj
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Communities of Haloxylon ammodendron are widespread in the Mongolian Gobi where they play a significant role in biodiversity preservation. They occupy several main types of habitats, showing differences in density, projective cover, and productivity. Haloxylon ammodendron plays a similar, if not even more important role in the arid zone of Mongolia as the principal forest-making trees in the Northern part of the country. The complex set of quantitative parameters of Haloxylon ammodendron stands studied here in respect to temporal dynamics can serve as an indicator of both the vitality of desert ecosystems, and of environmental change.
Greenhouse Gas Fluxes In Southeastern U.S. Coastal Plain Wetlands Under Contrasting Land Uses,
2012
Portland State University
Greenhouse Gas Fluxes In Southeastern U.S. Coastal Plain Wetlands Under Contrasting Land Uses, Jennifer L. Morse, Marcelo Ardón, Emily S. Bernhardt
Environmental Science and Management Faculty Publications and Presentations
Whether through sea level rise or wetland restoration, agricultural soils in coastal areas will be inundated at increasing rates, renewing connections to sensitive surface waters and raising critical questions about environmental trade-offs. Wetland restoration is often implemented in agricultural catchments to improve water quality through nutrient removal. Yet flooding of soils can also increase production of the greenhouse gases nitrous oxide and methane, representing a potential environmental trade-off. Our study aimed to quantify and compare greenhouse gas emissions from unmanaged and restored forested wetlands, as well as actively managed agricultural fields within the North Carolina coastal plain, USA. In sampling …
Biology Department Newsletter, No.2,
2012
Sacred Heart University
Biology Department Newsletter, No.2, Sacred Heart University
Biology Newsletter
No abstract provided.
A New Species Of Frog (Strabomantidae: Pristimantis) From Peru With Comments On Its Ectoparasites (Acari: Trombiculidae),
2012
Illinois Wesleyan University
A New Species Of Frog (Strabomantidae: Pristimantis) From Peru With Comments On Its Ectoparasites (Acari: Trombiculidae), Alan W. Brus
Honors Projects
In South America, frogs of the genus Pristimantis are diverse and can be found from lowland forests to elevations of about 4000 m in the Andes. The 444 known species of Pristimantis belong to 16 species groups. One of these groups is the Pristimantis orestes Group, the 14 members of which inhabit the páramo, puna, and upper montane forests in southern Ecuador (3 species) and Peru (11 species). Species of the Pristimantis orestes Group are characterized by having snout-vent lengths ranging from 18.0 to 29.4 mm, short robust bodies, relatively short snouts, narrow digital discs, and areolate ventral skin. Some …
Use Of Real-Time Pcr To Detect Canine Parvovirus In Feces Of Free-Ranging Wolves,
2012
USGS Northern Prairie Wildlife Research Center
Use Of Real-Time Pcr To Detect Canine Parvovirus In Feces Of Free-Ranging Wolves, L. David Mech, Emily S. Almberg, Douglas Smith, Sagar Goyal, Randall S. Singer
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Using real-time PCR, we tested 15 wolf (Canis lupus) feces from the Superior National Forest (SNF), Minnesota, USA, and 191 from Yellowstone National Park (YNP), USA, collected during summer and 13 during winter for canine parvovirus (CPV)-2 DNA. We also tested 20 dog feces for CPV-2 DNA. The PCR assay was 100%sensitive and specific with a minimum detection threshold of 104 50% tissue culture infective dose. Virus was detected in two winter specimens but none of the summer specimens. We suggest applying the technique more broadly especially with winter feces.
Control And Passive Treatment Of Runoff From Horse Muck Storage Structures Using Rain Gardens,
2012
University of Kentucky
Control And Passive Treatment Of Runoff From Horse Muck Storage Structures Using Rain Gardens, Hillary K. Otte
Theses and Dissertations--Forestry and Natural Resources
Runoff from livestock operations may contain a variety of pathogens and high levels of nutrients and other harmful contaminants, and is of particular concern in central Kentucky as watersheds are threatened by waste generated from a high concentration of equine activity. Rain gardens are a type of stormwater management tool used to capture and passively treat runoff. This project aimed to incorporate rain gardens into the horse muck storage structures at a thoroughbred facility in the Canr Run watershed in Lexington, Kentucky. Water quality data from soil water within two rain garden muck pads and two control pads, and grab …
Swamp : Walking The Wetlands Of The Swan Coastal Plain ; And With The Exegesis, A Walk In The Anthropocene: Homesickness And The Walker-Writer,
2012
Edith Cowan University
Swamp : Walking The Wetlands Of The Swan Coastal Plain ; And With The Exegesis, A Walk In The Anthropocene: Homesickness And The Walker-Writer, Anandashila Saraswati
Theses: Doctorates and Masters
This project is comprised of a creative work and accompanying exegesis. The creative work is a collection of poetry which examines the history and ecology of the wetlands and river systems of the Swan Coastal Plain, and which utilises the practice of walking as a research methodology. For the creative practitioner walking reintroduces the body as a fundamental definer of experience, placing the investigation centrally in the corporeal self, using the physical senses as investigative tools of enquiry. As Rebecca Solnit comments in her history of walking, ‘exploring the world is one of the best ways of exploring the mind, …
Priority Effects Among Young-Of-The-Year Fish: Reduced Growth Of Bluegill Sunfish (Lepomis Macrochirus) Caused By Yellow Perch (Perca Flavescens)?,
2012
South Dakota State University
Priority Effects Among Young-Of-The-Year Fish: Reduced Growth Of Bluegill Sunfish (Lepomis Macrochirus) Caused By Yellow Perch (Perca Flavescens)?, Mark A. Kaemingk, Jeffrey C. Jolley, David W. Willis, Steven R. Chipps
Natural Resource Management Faculty Publications
1. When available, Daphnia spp. are often preferred by age-0 yellow perch and bluegill sunfish because of energetic profitability. We hypothesised that predation by age-0 yellow perch could lead to a midsummer decline (MSD) of Daphnia spp. and that priority effects may favour yellow perch because they hatch before bluegill, allowing them to capitalise on Daphnia spp. prior to bluegill emergence. 2. Data were collected from 2004 to 2010 in Pelican Lake, Nebraska, U.S.A. The lake experienced a prolonged MSD in all but 1 year (2005), generally occurring within the first 2 weeks of June except in 2008 and 2010 …
Evaluation Of Elevated Bait Trays For Attracting Blackbirds (Icteridae) In Central
North Dakota,
2012
USDA/APHIS/WS National Wildlife Research Center
Evaluation Of Elevated Bait Trays For Attracting Blackbirds (Icteridae) In Central North Dakota, George M. Linz, Jamison B. Winter, William J. Bleier
United States Department of Agriculture Wildlife Services: Staff Publications
Sunflower (Helianthus annuus L.) became an economically important crop in North Dakota in the 1970s, providing a major source of food for post-breeding blackbirds (Icteridae). Reducing local blackbird populations with rice grains treated with an avicide is one proposed alternative for reducing sunflower damage. In fall 2007 and 2008, we evaluated the idea of attracting blackbirds to rice-baited trays attached to wire cages supplied with live blackbirds. During our observations (1011 h), we saw 3888 birds, consisting of 25 species and 12 families, on the bait trays. Blackbirds made up 90.4% of the bird observations, whereas sparrows (Emberizidae) made …
Foraging And Roosting Behaviors Of Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii) At The Northern Edge Of The Species Range,
2012
University of Kentucky
Foraging And Roosting Behaviors Of Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii) At The Northern Edge Of The Species Range, Joseph S. Johnson
Theses and Dissertations--Animal and Food Sciences
Bat populations in the eastern United States are currently declining at unprecedented rates as a result of habitat loss, commercial wind energy development, and white-nose syndrome. Effective conservation of these declining populations requires knowledge of several aspects of summer and winter ecology, including daytime habitat use (day-roost selection and social behaviors), nocturnal habitat use (foraging habitat selection, prey selection, and prey abundance), and winter hibernation (torpor) patterns. This dissertation addresses these questions for Rafinesque’s big-eared bat (Corynorhinus rafinesquii), a species of conservation concern in the southeastern United States. Kentucky represents the northern edge of the range of Rafinesque’s …
Fall 2012,
2012
Nova Southeastern University
Bacterial Community Structure Of Contrasting Soils Underlying Bornean Rain Forests: Inferences From Microarray And Next-Generation Sequencing Methods,
2012
University of Nebraska - Lincoln
Bacterial Community Structure Of Contrasting Soils Underlying Bornean Rain Forests: Inferences From Microarray And Next-Generation Sequencing Methods, Sabrina E. Russo, Ryan Legge, Karrie A. Weber, Eoin L. Brodie, Katherine C. Goldfarb, Andrew K. Benson, Sylvester Tan
School of Biological Sciences: Faculty Publications
Soil microbial diversity is vast, and we lack even basic understanding of how this diversity is distributed ecologically. Using pyrosequencing and microarray methods, we quantified the structure of bacterial communities in two contrasting soils underlying Bornean rain forest (clay and sandy loam) that differ markedly in soil properties, aboveground tree flora, and leaf litter decomposition rates. We found significant soil-related taxonomic and phylogenetic differences between communities that, due to their proximity, are independent of climate. Bacterial communities showed distinct compositional and taxon-abundance distributions that were significantly correlated with the structure of the overlying tree community. Richness of bacteria was greater …
A New Genus And Species Of Lungworm (Nemata: Metastrongyloidea) From Akodon Mollis Thomas, 1894 (Rodentia: Cricetidae) In Peru,
2012
Universidad Nacional Mayor de San Marcos
A New Genus And Species Of Lungworm (Nemata: Metastrongyloidea) From Akodon Mollis Thomas, 1894 (Rodentia: Cricetidae) In Peru, Maria Elizabeth Morales, Scott Lyell Gardner, John E. Ubelaker
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Akodonema luzsarmientae n.g., n.sp. (Nemata: Metastrongyloidea) is described from the pulmonary arteries and heart from several individuals of "soft grass mouse," Akodon mollis (Rodentia: Cricetidae), collected in the region of Ancash, Peru. The new genus and species is distinguished by a reduction of the dorsal ray to two small widely separated papillae.
New Species Of Arostrilepis (Eucestoda: Hymenolepididae) In Members Of Cricetidae And Geomyidae (Rodentia) From The Western Nearctic,
2012
Siberian Branch, Russian Academy of Sciences
New Species Of Arostrilepis (Eucestoda: Hymenolepididae) In Members Of Cricetidae And Geomyidae (Rodentia) From The Western Nearctic, Arseny A. Makarikov, Scott Lyell Gardner, Eric P. Hoberg
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Specimens originally identified as Arostrilepis horrida from the Nearctic are revised, contributing to the recognition of a complex of cryptic species distributed across the Holarctic region. Previously unrecognized species are described based on specimens in cricetid (Neotominae) and geomyid rodents. Arostrilepis mariettavogeae n. sp. in Peromyscus californicus from Monterey County, California, and Arostrilepis schilleri n. sp. in Thomomys bulbivorus from Corvallis, Oregon, are characterized. Consistent with recent studies defining diversity in the genus, form, size, and spination (pattern, shape, and size) of the cirrus are diagnostic; species are further distinguished by the relative position and length of the cirrus sac …
Return To Beringia: Parasites Reveal Cryptic Biogeographic History Of North American Pikas,
2012
Western Washington University
Return To Beringia: Parasites Reveal Cryptic Biogeographic History Of North American Pikas, Kurt E. Galbreath, Eric P. Hoberg
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Traditional concepts of the Bering Land Bridge as a zone of predominantly eastward expansion from Eurasia and a staging area for subsequent colonization of lower latitudes in North America led to early inferences regarding biogeographic histories of North American faunas, many of which remain untested. Here we apply a host–parasite comparative phylogeographical (HPCP) approach to evaluate one such history, by testing competing biogeographic hypotheses for five lineages of host-specific parasites shared by the collared pika (Ochotona collaris) and American pika (Ochotona princeps) of North America. We determine whether the southern host species (O. princeps) …
Discovery And Description Of The "Davtiani" Morphotype For Teladorsagia Boreoarcticus (Trichostrongyloidea: Ostertagiinae) Abomasal Parasites In Muskoxen, Ovibos Moschatus, And Caribou, Rangifer Tarandus, From The North American Arctic: Implications For Parasite Faunal Diversity,
2012
Animal Parasitic Disease Laboratory, Agricultural Research Service, United States Department of Agriculture
Discovery And Description Of The "Davtiani" Morphotype For Teladorsagia Boreoarcticus (Trichostrongyloidea: Ostertagiinae) Abomasal Parasites In Muskoxen, Ovibos Moschatus, And Caribou, Rangifer Tarandus, From The North American Arctic: Implications For Parasite Faunal Diversity, Eric P. Hoberg, Arthur Abrams, Patricia A. Pilitt, Susan J. Kutz
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Collections to explore helminth diversity among free-ranging ungulates in the North American Arctic revealed the occurrence of a third male, or "davtiani," morphotype for Teladorsagia boreoarcticus. Designated as T. boreoarcticus forma (f.) minor B, the males occurred with T. boreoarcticus f. major and T. borearcticus f. minor A in endemic populations of muskoxen (Ovibos moschatus wardi) and barrenground caribou (Rangifer tarandus groenlandicus) on Victoria Island, Nunavut, Canada, and in muskoxen and Peary caribou (Rangifer tarandus pearyi) on Banks Island, Northwest Territories, Canada. These specimens differ from conspecific morphotypes in the structure …
Discovery And Description Of A New Trichostrongyloid Species (Nematoda: Ostertagiinaw), Abomasal Parasites In Mountain Goat, Oreamnos Americanus, From The Western Cordillera Of North America [With Erratum],
2012
Animal Parasitic Disease Laboratory, Agricultural Research Service, United States Department of Agriculture
Discovery And Description Of A New Trichostrongyloid Species (Nematoda: Ostertagiinaw), Abomasal Parasites In Mountain Goat, Oreamnos Americanus, From The Western Cordillera Of North America [With Erratum], Eric P. Hoberg, Arthur Abrams, Patricia A. Pilitt, Emily J. Jenkins
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Marshallagia lichtenfelsi sp. n. is a dimorphic ostertagiine nematode occurring in the abomasum of mountain goats, Oreamnos americanus, from the Western Cordillera of North America. Major and minor morphotype males and females are characterized and distinguished relative to the morphologically similar Marshallagia marshalli/Marshallagia occidentalis from North America and Marshallagia dentispicularis, along with other congeners, from the Palearctic region. The configuration of the convoluted and irregular synlophe in the cervical region of males and females of M. lichtenfelsi is apparently unique, contrasting with a continuous and parallel system of ridges among those species of Marshallagia, including …
Four Events Of Host Switching In Aspidoderidae (Nematoda) Involve Convergent Lineages Of Mammals,
2012
Southern Illinois University Carbondale
Four Events Of Host Switching In Aspidoderidae (Nematoda) Involve Convergent Lineages Of Mammals, F. Agustín Jiménez-Ruiz, Scott Lyell Gardner, Graciela Navone, Guillermo Ortí
Harold W. Manter Laboratory of Parasitology: Faculty Publications
The Great American Interchange resulted in the mixing of faunistic groups with different origins and evolutionary trajectories that underwent rapid diversification in North and South America. As a result, groups of animals of recent arrival converged into similar habits and formed ecological guilds with some of the endemics. We present a reconstruction of the evolutionary events in Aspidoderidae, a family of nematodes that infect mammals that are part of this interchange, i.e., dasypodids, opossums, and sigmodontine, geomyid, and hystricognath rodents. By treating hosts as discrete states of character and using parsimony and Bayesian inferences to optimize these traits into the …
