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2005

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Characterization Of Waste Rock Associated With Acid Drainage At The Penn Mine, California, By Ground-Based Visible To Short-Wave Infrared Reflectance Spectroscopy Assisted By Digital Mapping, Irene C. Montero S., George H. Brimhall, Charles N. Alpers, Gregg A. Swayze Jan 2005

Characterization Of Waste Rock Associated With Acid Drainage At The Penn Mine, California, By Ground-Based Visible To Short-Wave Infrared Reflectance Spectroscopy Assisted By Digital Mapping, Irene C. Montero S., George H. Brimhall, Charles N. Alpers, Gregg A. Swayze

United States Geological Survey: Staff Publications

Prior to remediation at the abandoned Cu–Zn Penn Mine in the Foothills massive sulfide belt of the Sierra Nevada, CA, acid mine drainage (AMD) was created, in part, by the subaerial oxidation of sulfides exposed on several waste piles. To support remediation efforts, a mineralogical study of the waste piles was undertaken by acquiring reflectance spectra (measured in the visible to short-wave infrared range of light (0.35–2.5 Am) using a portable, digitally integrated pen tablet PC mapping system with differential global positioning system and laser rangefinder support. Analysis of the spectral data made use of a continuum removal and band-shape …

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Biochemical Effects Of Lead, Zinc, And Cadmium From Mining On Fish In The Tri-States District Of Northeastern Oklahoma, Usa, Christopher J. Schmitt, Jeffrey J. Whyte, William G. Brumbaugh, Donald E. Tillitt Jan 2005

Biochemical Effects Of Lead, Zinc, And Cadmium From Mining On Fish In The Tri-States District Of Northeastern Oklahoma, Usa, Christopher J. Schmitt, Jeffrey J. Whyte, William G. Brumbaugh, Donald E. Tillitt

United States Geological Survey: Staff Publications

We assessed the exposure of fish from the Spring and Neosho Rivers in northeast Oklahoma, USA, to lead, zinc, and cadmium from historical mining in the Tri-States Mining District (TSMD). Fish (n = 74) representing six species were collected in October 2001 from six sites on the Spring and Neosho Rivers influenced to differing degrees by mining. Additional samples were obtained from the Big River, a heavily contaminated stream in eastern Missouri, USA, and from reference sites. Blood from each fish was analyzed for Pb, Zn, Cd, Fe, and hemoglobin (Hb). Blood also was analyzed for δ-aminolevulinic acid dehydratase …

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A Curious Pellet From A Great Horned Owl (Bubo Virginianus), Neal Woodman, Carla J. Dove, Suzanne C. Peurach Jan 2005

A Curious Pellet From A Great Horned Owl (Bubo Virginianus), Neal Woodman, Carla J. Dove, Suzanne C. Peurach

United States Geological Survey: Staff Publications

One of the traditional methods of determining the dietary preferences of owls relies upon the identification of bony remains of prey contained in regurgitated pellets. Discovery of a pellet containing a large, complete primary feather from an adult, male Ring-necked Pheasant (Phasianus colchicus) prompted us to examine in detail a small sample of pellets from a Great Horned Owl (Bubo virginianus). Our analyses of feather and hair remains in these pellets documented the presence of three species of birds and two species of mammals, whereas bones in the pellets represented only mammals. This finding indicates an …

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Survival And Selection Of Migrating Salmon From Capture-Recapture Models With Individual Traits, Richard W. Zabel, Tyler Wagner, James L. Congleton, Steven G. Smith, John G. Williams Jan 2005

Survival And Selection Of Migrating Salmon From Capture-Recapture Models With Individual Traits, Richard W. Zabel, Tyler Wagner, James L. Congleton, Steven G. Smith, John G. Williams

United States Geological Survey: Staff Publications

Capture–recapture studies are powerful tools for studying animal population dynamics, providing information on population abundance, survival rates, population growth rates, and selection for phenotypic traits. In these studies, the probability of observing a tagged individual reflects both the probability of the individual surviving to the time of recapture and the probability of recapturing an animal, given that it is alive. If both of these probabilities are related to the same phenotypic trait, it can be difficult to distinguish effects on survival probabilities from effects on recapture probabilities. However, when animals are individually tagged and have multiple opportunities for recapture, we …

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High Dispersal In A Frog Species Suggest That It Is Vulnerable To Habitat Fragmentation, W. Chris Funk, Allison E. Greene, Paul Stephen Corn, Fred W. Allendorf Jan 2005

High Dispersal In A Frog Species Suggest That It Is Vulnerable To Habitat Fragmentation, W. Chris Funk, Allison E. Greene, Paul Stephen Corn, Fred W. Allendorf

United States Geological Survey: Staff Publications

Global losses of amphibian populations are a major conservation concern and have generated substantial debate over their causes. Habitat fragmentation is considered one important cause of amphibian decline. However, if fragmentation is to be invoked as a mechanism of amphibian decline, it must first be established that dispersal is prevalent among contiguous amphibian populations using formal movement estimators. In contrast, if dispersal is naturally low in amphibians, fragmentation can be disregarded as a cause of amphibian declines and conservation efforts can be focused elsewhere. We examined dispersal rates in Columbia spotted frogs (Rana luteiventris) using capture– recapture analysis …

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Population Structure Of Columbia Spotted Frogs (Rana Luteiventris) Is Strongly Affected By The Landscape, W. Chris Funk, Michael S. Blouin, Paul Stephen Corn, Bryce A. Maxell, David S. Pilliod, Stephen Amish, Fred W. Allendorf Jan 2005

Population Structure Of Columbia Spotted Frogs (Rana Luteiventris) Is Strongly Affected By The Landscape, W. Chris Funk, Michael S. Blouin, Paul Stephen Corn, Bryce A. Maxell, David S. Pilliod, Stephen Amish, Fred W. Allendorf

United States Geological Survey: Staff Publications

Landscape features such as mountains, rivers, and ecological gradients may strongly affect patterns of dispersal and gene flow among populations and thereby shape population dynamics and evolutionary trajectories. The landscape may have a particularly strong effect on patterns of dispersal and gene flow in amphibians because amphibians are thought to have poor dispersal abilities. We examined genetic variation at six microsatellite loci in Columbia spotted frogs (Rana luteiventris) from 28 breeding ponds in western Montana and Idaho, USA, in order to investigate the effects of landscape structure on patterns of gene flow. We were particularly interested in addressing …

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The Value Of Agricultural Wetlands As Invertebrate Resources For Wintering Shorebirds, Oriane W. Taft, Susan M. Haig Jan 2005

The Value Of Agricultural Wetlands As Invertebrate Resources For Wintering Shorebirds, Oriane W. Taft, Susan M. Haig

United States Geological Survey: Staff Publications

Agricultural landscapes have received little recognition for the food resources they provide to wintering waterbirds. In the Willamette Valley of Oregon, modest yet significant populations of wintering shorebirds (Charadriiformes) regularly use hundreds of dispersed wetlands on agricultural lands. Benthic invertebrates are a critical resource for the survival of overwintering shorebirds, yet the abundance of invertebrate resources in agricultural wetlands such as these has not been quantified. To evaluate the importance of agricultural wetlands to a population of wintering shorebirds, the density, biomass, and general community composition of invertebrates available to birds were quantified at a sample of Willamette Valley sites …

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Conflicting Patterns Of Genetic Structure Produced By Nuclear And Mitochondrial Markers In The Oregon Slender Salamander (Batrachoseps Wrighti): Implications For Conservation Efforts And Species Management, Mark P. Miller, Susan M. Haig, Steven Wagner Jan 2005

Conflicting Patterns Of Genetic Structure Produced By Nuclear And Mitochondrial Markers In The Oregon Slender Salamander (Batrachoseps Wrighti): Implications For Conservation Efforts And Species Management, Mark P. Miller, Susan M. Haig, Steven Wagner

United States Geological Survey: Staff Publications

Endemic to Oregon in the northwestern US, the Oregon slender salamander (Batrachoseps wrighti = B. wrightorum) is a terrestrial plethodontid found associated with late successional mesic forests. Consequently, forest management practices such as timber harvesting may impact their persistence. Therefore, to infer possible future effects of these practices on population structure and differentiation, we used mitochondrial DNA sequences (cytochrome b) and RAPD markers to analyze 22 populations across their range. Phylogenetic analyses of sequence data (774 bp) revealed two historical lineages corresponding to northern and southern-distributed populations. Relationships among haplotypes and haplotype diversity within lineages suggested that the …

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Geographic Variation, Genetic Structure, And Conservation Unit Designation In The Larch Mountain Salamander (Plethodon Larselli), R. Steven Wagner, Mark P. Miller, Charles M. Crisafulli, Susan M. Haig Jan 2005

Geographic Variation, Genetic Structure, And Conservation Unit Designation In The Larch Mountain Salamander (Plethodon Larselli), R. Steven Wagner, Mark P. Miller, Charles M. Crisafulli, Susan M. Haig

United States Geological Survey: Staff Publications

The Larch Mountain salamander (Plethodon larselli Burns, 1954) is an endemic species in the Pacific northwestern United States facing threats related to habitat destruction. To facilitate development of conservation strategies, we used DNA sequences and RAPDs (random amplified polymorphic DNA) to examine differences among populations of this species. Phylogenetic analyses of cytochrome b revealed a clade of haplotypes from populations north of the Columbia River derived from a clade containing haplotypes from the river’s southwestern region. Haplotypes from southeastern populations formed a separate clade. Nucleotide diversity was reduced in northern populations relative to southern populations. These results were corroborated …

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Selection Of Arboreal Termitaria For Nesting By Cooperatively Breeding Micronesian Kingfishers Todiramphus Cinnamominus Reichenbachii, Dylan C. Kesler, Susan M. Haig Jan 2005

Selection Of Arboreal Termitaria For Nesting By Cooperatively Breeding Micronesian Kingfishers Todiramphus Cinnamominus Reichenbachii, Dylan C. Kesler, Susan M. Haig

United States Geological Survey: Staff Publications

Limited nest-site availability appears to be an important factor in the evolution of delayed dispersal and cooperative breeding in some cavity-nesting species. The cooperatively breeding Pohnpei subspecies of Micronesian Kingfisher Todiramphus cinnamominus reichenbachii excavates nest cavities from the nests of arboreal termites Nasutitermes spp., or termitaria. In this first published description of nest-sites for this subspecies, we used surveys, remote sensing and radiotelemetry to evaluate the relationship between nest-site availability and co-operation. Results illustrate that nest termitaria are higher in the forest canopy, larger in volume and occur in areas with more contiguous canopy cover than unused termitaria. Nest termitaria …

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A Complete Species Census And Evidence For Regional Declines In Piping Plovers, Susan M. Haig, Cheron L. Ferland, Francesca J. Cuthbert, Jack Dingledine, J. Paul Goossen, Anne Hecht, Nell Mcphillips Jan 2005

A Complete Species Census And Evidence For Regional Declines In Piping Plovers, Susan M. Haig, Cheron L. Ferland, Francesca J. Cuthbert, Jack Dingledine, J. Paul Goossen, Anne Hecht, Nell Mcphillips

United States Geological Survey: Staff Publications

Complete population estimates for widely distributed species are rarely possible. However, for the third time in 10 years, an International Piping Plover (Charadrius melodus) Breeding and Winter Census was conducted throughout the species range in 2001. Nearly 1,400 participants from 32 U.S. states and Puerto Rico; 9 Canadian provinces; St. Pierre and Miquelon, France; Cuba; and the Bahamas visited 2,244 sites covering 11,836 km of shoreline habitat. During the winter census, 2,389 piping plovers were observed at 33.5% of potentially occupied sites (n = 352). Of these, 56.8% had ≤10 birds present. The breeding census recorded 5,945 adults …

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Microclimate And Nest-Site Selection In Micronesian Kingfishers, Dylan C. Kesler, Susan M. Haig Jan 2005

Microclimate And Nest-Site Selection In Micronesian Kingfishers, Dylan C. Kesler, Susan M. Haig

United States Geological Survey: Staff Publications

We studied the relationship between microclimate and nest-site selection in the Pohnpei Micronesian Kingfisher (Todiramphus cinnamominus reichenbachii ) which excavates nest cavities from the mudlike nest structures of arboreal termites (Nasutitermes sp.) or termitaria. Mean daily high temperatures at termitaria were cooler and daily low temperatures were warmer than at random sites in the forest. Results also indicate that termitaria provided insulation from temperature extremes, and that temperatures inside termitaria were within the thermoneutral zone of Micronesian Kingfishers more often than those outside. No differences were identified in temperatures at sites where nest termitaria and nonnest termitaria occurred …

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New Data For Late Pleistocene Pinedale Alpine Glaciation From Southwestern Colorado, Larry Benson, Richard Madole, Gary Landis, John Gosse Jan 2005

New Data For Late Pleistocene Pinedale Alpine Glaciation From Southwestern Colorado, Larry Benson, Richard Madole, Gary Landis, John Gosse

United States Geological Survey: Staff Publications

New cosmogenic surface-exposure ages of moraine-crest boulders from southwestern Colorado are compared with published surface-exposure ages of boulders from moraine complexes in north-central Colorado and in west-central (Fremont Lake basin) Wyoming. 10Be data sets from the three areas were scaled to a single 10Be production rate of 5.4 at/g/yr at sea level and high latitude (SLHL), which represents the average 10Be production rate for two high-altitude, mid-latitude sites in the western United States (US) and Austria. Multiple nuclide ages on single boulders indicate that this 10Be production rate yields ages comparable to those calculated with a …

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Conservation Genomics: Disequilibrium Mapping Of Domestic Cattle Chromosomal Segments In North American Bison Populations, Natalie D. Halbert, Todd J. Ward, Robert D. Schnabel, Jeremy F. Taylor, James N. Derr Jan 2005

Conservation Genomics: Disequilibrium Mapping Of Domestic Cattle Chromosomal Segments In North American Bison Populations, Natalie D. Halbert, Todd J. Ward, Robert D. Schnabel, Jeremy F. Taylor, James N. Derr

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Introgressive hybridization is one of the major threats to species conservation, and is often induced by human influence on the natural habitat of wildlife species. The ability to accurately identify introgression is critical to understanding its importance in evolution and effective conservation management of species. Hybridization between North American bison ( Bison bison ) and domestic cattle ( Bos taurus ) as a result of human activities has been recorded for over 100 years, and domestic cattle mitochondrial DNA was previously detected in bison populations. In this study, linked microsatellite markers were used to identify domestic cattle chromosomal segments in …

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Concentrations Of Cadmium, Lead, And Zinc In Fish From Mining-Influenced Waters Of Northeastern Oklahoma: Sampling Of Blood, Carcass, And Liver For Aquatic Biomonitoring, William G. Brumbaugh, Christopher J. Schmitt, Thomas W. May Jan 2005

Concentrations Of Cadmium, Lead, And Zinc In Fish From Mining-Influenced Waters Of Northeastern Oklahoma: Sampling Of Blood, Carcass, And Liver For Aquatic Biomonitoring, William G. Brumbaugh, Christopher J. Schmitt, Thomas W. May

United States Geological Survey: Staff Publications

The Tri-States Mining District (TSMD) of Missouri (MO), Kansas (KS), and Oklahoma (OK), USA, was mined for lead (Pb) and zinc (Zn) for more than a century. Mining ceased more than 30 years ago, but wastes remain widely distributed in the region, and there is evidence of surface- and groundwater contamination in the Spring River- Neosho River (SR-NR) system of northeastern OK. In October 2001, we collected a total of 74 fish from six locations in the SR-NR system that included common carp (Cyprinus carpio), channel- and flathead catfish (Ictalurus punctatus and Pylodictis olivaris), largemouth- and spotted bass (Micropterus salmoides …

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Late-Holocene Flooding And Drought In The Northern Great Plains, Usa, Reconstructed From Tree Rings, Lake Sediments And Ancient Shorelines, M. D. Shapley, W. C. Johnson, D. R. Engstrom, W. R. Osterkamp Jan 2005

Late-Holocene Flooding And Drought In The Northern Great Plains, Usa, Reconstructed From Tree Rings, Lake Sediments And Ancient Shorelines, M. D. Shapley, W. C. Johnson, D. R. Engstrom, W. R. Osterkamp

United States Geological Survey: Staff Publications

During the AD 1990s the Waubay Lakes complex in eastern South Dakota experienced historically unprecedented high water levels. Property damage from this flooding led to an examination of the occurrence of past pluvial episodes and their relation to climate. A lOOO-year hydroclimate reconstruction was developed from local bur oak (Quercus macrocarpa) tree-ring records and lake-sediment cores. Analysis of lake shoreline and drainage features provides late-Quaternary geomorphic context for this high-resolution record. Tree-ring width and shell geochemistry of the ostracode Candona rawsoni show marked coherence, indicating synchronous responses to moisture balance in vegetation and lake salinity; geomorphic evidence …

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Omega-3 Fatty Acid Consumption And Food Sources Differ Among Elderly Men Living In Coastal And Internal Regions Of Saudi Arabia, Khalid Al-Numair, Nancy M. Lewis, Sharon Evans Jan 2005

Omega-3 Fatty Acid Consumption And Food Sources Differ Among Elderly Men Living In Coastal And Internal Regions Of Saudi Arabia, Khalid Al-Numair, Nancy M. Lewis, Sharon Evans

Department of Nutrition and Health Sciences: Faculty Publications

Research suggests that omega-3 fatty acids (n-3 FAs) play an important role in reducing the risk of heart diseases. The objectives of the current study were to investigate the consumption and the food sources of n-3 FAs in two samples of elderly men living in different geographic locations (coastal and internal regions) of Saudi Arabia. Sixty men from each of the coastal and the internal regions provided a 24-hour recall and 2-day food record and a food frequency questionnaire. Food Processor Plus computer program software (ESHA Version 0.7; Salem, Oregon, 2002) was used to analyze the dietary intake. The intake …

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Increasing Interest In Parasitology At The Past Three International Mammalogical Congresses Held In 1997, 2001 And 2005: Mammals, Parasites, Zoonoses And Biodiversity, Scott Lyell Gardner, Mitsuhiko Asakawa, Luis A. Ruedas, Kenichi Takahashi Jan 2005

Increasing Interest In Parasitology At The Past Three International Mammalogical Congresses Held In 1997, 2001 And 2005: Mammals, Parasites, Zoonoses And Biodiversity, Scott Lyell Gardner, Mitsuhiko Asakawa, Luis A. Ruedas, Kenichi Takahashi

Harold W. Manter Laboratory of Parasitology: Faculty Publications

We summarized the data from the past three TTC (now IMC) meetings to examine the potential trends in presentation of parasites of mammals at the meeting. The lists include titles and authors of papers given in symposia, poster sessions, and oral presentations related to diseases, zoonoses, parasites, and causative agents of diseases of sylvatic mammals. Our analysis shows that there has been an increase in the number of papers (from 2.8% in 1997 to 5.1% in 2005) presented at the International Mammalogical Meetings. We also show that there are potentially more than 27,000 species of parasites (broadly defined) currently inhabiting …

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Preface, Kenichi Takahashi, Mitsuhiko Asakawa, Luis A. Ruedas, Scott Lyell Gardner Jan 2005

Preface, Kenichi Takahashi, Mitsuhiko Asakawa, Luis A. Ruedas, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The papers included in this section were derived from the topical presentations including but not limited to parasite zoonoses, mammal parasite ecology, and mammal parasite biodiversity given at the IX International Mammalogical Congress (IMC9) held in 31 July-5 August 2005 in Sapporo, Japan.

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Lead Presentation, John Owens Jan 2005

Lead Presentation, John Owens

John Owens: Speeches and Appearances

Thank you for inviting us to share with you some information about the Institute of Agriculture and Natural Resources, and what we are doing for Nebraska. As a stakeholder in Nebraska's land-grant university, you and every other Nebraskan have every right at any time to ask us what we've done for you and your neighbors lately. We welcome the question. There is so much excellent work being accomplished on this campus and throughout Nebraska that I am delighted each time I have the opportunity to talk about it. The biggest problem I find is stopping - there's always so much …

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Ribbon Cutting At Kimmel Education And Research Center, John Owens Jan 2005

Ribbon Cutting At Kimmel Education And Research Center, John Owens

John Owens: Speeches and Appearances

It is marvelously fitting that we gather here in Nebraska City on this lovely fall afternoon to officially celebrate this wonderful new center. Fall is a traditional-time of harvest in Nebraska, and for many of us there is a deep and abiding satisfaction in bringing a good crop to fruition. Apple harvests at Nebraska City orchards long have brought visitors here each year for fresh fruit and cider.

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University Of Nebraska/Kimmel Education And Research Center Groundbreaking, John Owens Jan 2005

University Of Nebraska/Kimmel Education And Research Center Groundbreaking, John Owens

John Owens: Speeches and Appearances

It's really exciting to be here this afternoon as we officially celebrate breaking ground for the University of Nebraska/Kimmel Education and Research Center. We in the Institute of Agriculture and Natural Resources at the University of Nebraska - Lincoln are so pleased to be part of this celebration. We look forward to all the good work that will be accomplished here to benefit Nebraska.

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Dinsdale Family Luncheon, John Owens Jan 2005

Dinsdale Family Luncheon, John Owens

John Owens: Speeches and Appearances

It's such a treat to be here today to have this opportunity to bring together members of the Dinsdale family, whose generosity makes our Dinsdale Family Faculty Awards possible, and this year's recipients of those awards in the Institute of Agriculture and Natural Resources at the University of Nebraska-Lincoln.

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Arkansas Symposium: Opportunities And Challenges Of Colleges Of Agriculture At Land-Grant Universities, John Owens Jan 2005

Arkansas Symposium: Opportunities And Challenges Of Colleges Of Agriculture At Land-Grant Universities, John Owens

John Owens: Speeches and Appearances

Friends, we've got trouble.
Yes, "... we got trouble,
Right here in River City!
With a capital ‘T’
That rhymes with ‘P’
And that stands for –"

Well, in the musical "The Music Man," where these lines originate, the "P" stood for "Pool."

"Pool" as in "Pool Hall," and all the less than edifying experiences the word conjured up for worried River City parents.

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Ag At The Crossroads, John Owens Jan 2005

Ag At The Crossroads, John Owens

John Owens: Speeches and Appearances

Good afternoon. It is always a pleasure to take part in Ag at the Crossroads. I am particularly pleased today to be asked to talk about one of our Institute of Agriculture and Natural Resources' strategic plan priorities and that is water. One of our four strategic plan priority goals is to, "Develop an integrated, multi-disciplinary, multi-functional water resources program addressing Nebraska's needs that provides statewide, national, and international leadership in water quality and quantity management in the next decade."

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Agriculture Builders Of Nebraska, Inc. Annual Meeting, John Owens Jan 2005

Agriculture Builders Of Nebraska, Inc. Annual Meeting, John Owens

John Owens: Speeches and Appearances

Let me start today by saying thank you. Thank you, each of you, for your strong support of the Institute of Agriculture and Natural Resources and the University of Nebraska.

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Nebraska Hall Of Agricultural Achievement, John Owens Jan 2005

Nebraska Hall Of Agricultural Achievement, John Owens

John Owens: Speeches and Appearances

I am delighted to be present tonight to celebrate the achievements of these wonderful and worthy new additions to the Nebraska Hall of Agricultural Achievement. It's a real treat to have this opportunity to focus on recognizing some very special Nebraskans who are so deserving of their honors. I can think of few experiences more gratifying than those in which we all get to say a heartfelt “well done and thank you” to those people who make significant contributions to the world around them by the way they live their lives and by the places they choose to put their …

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Abn Summer Meeting, John Owens Jan 2005

Abn Summer Meeting, John Owens

John Owens: Speeches and Appearances

We in the Institute of Agriculture and Natural Resources are so pleased you're here with us today at our Agricultural Research and Development Center. We hope you enjoy the day as much as we enjoy having you here. Thank you for coming. Thanks, also, to everyone who has been involved in putting this day together. Your work is very much appreciated.

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Redescription And New Host Record Of Eimeria Serbica From The Caucasian Tree Squirrel, Sciurus Anomalus, From Turkey, Lee Couch, Atilla Arslan, Donald W. Duszynski Jan 2005

Redescription And New Host Record Of Eimeria Serbica From The Caucasian Tree Squirrel, Sciurus Anomalus, From Turkey, Lee Couch, Atilla Arslan, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Fecal samples from 20 Caucasian tree squirrels, Sciurus anomalus (Gmelin, 1778) Güldenstaedt, 1785, were collected in Turkey during February and March, 2004, and all 20 were infected with a single species of coccidia, Eimeria serbica. Sporulated oocysts are ellipsoidal, 27.5 × 17.5 (21–34 × 15–20) with a length:width ratio (L/W) of 1.6 (1.4–1.8); they lack a micropyle and oocyst residuum, but 0–2 polar granules may be present. Sporocysts are ellipsoidal, 11.9 × 6.9 (10.5–14 × 6–7.5) with a L/W of 1.7 (1.5–2.1); a Stieda body and sporocyst residuum are present.

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Pathogenic New Species Of Eimeria From The Pygmy Rabbit, Brachylagus Idahoensis, In Washington And Oregon, With Description Of The Sporulated Oocyst And Intestinal Endogenous Stages, Donald W. Duszynski, Lisa Harrenstien, Lee Couch, Michael M. Garner Jan 2005

Pathogenic New Species Of Eimeria From The Pygmy Rabbit, Brachylagus Idahoensis, In Washington And Oregon, With Description Of The Sporulated Oocyst And Intestinal Endogenous Stages, Donald W. Duszynski, Lisa Harrenstien, Lee Couch, Michael M. Garner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

In January 2003, fecal samples from 13 live pygmy rabbits, Brachylagus idahoensis (Merriam, 1891), were collected at the Oregon Zoo in Portland, Oregon, and sent to the University of New Mexico (UNM), Albuquerque, New Mexico, to be examined for coccidia. In July 2004, 14 more fecal samples were collected and sent to UNM, 6 from some of the same rabbits and 8 from 16 other rabbits (4 were pooled samples from siblings). In addition, tissue sections from 3 dead rabbits (2 from the Oregon Zoo, 1 from Washington State University) also were examined. Two of 4 (50%) pooled fecal samples …

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