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Birds, Landslides And Pastures: A Biogeographic Conundrum, Mark R. Welford Dec 2013

Birds, Landslides And Pastures: A Biogeographic Conundrum, Mark R. Welford

Mark R. Welford

No abstract provided.


Seroprevalence Of Ehrlichia Canis, Ehrlichia Chaffeensis And Ehrlichia Ewingii In Dogs In North America, Melissa J. Beall, A. Rick Alleman, Ed B. Breitschwerdt, Leah A. Cohn, C. Guillermo Couto, Michael W. Dryden, Lynn C. Guptill, Christina Iazbik, Stephen A. Kania, Patty Lathan, Susan E. Little, Alma Roy, Katherine A. Sayler, Brett A. Stillman, Elizabeth G. Wells, Wendy Wolfson, Michael J. Yabsley Dec 2013

Seroprevalence Of Ehrlichia Canis, Ehrlichia Chaffeensis And Ehrlichia Ewingii In Dogs In North America, Melissa J. Beall, A. Rick Alleman, Ed B. Breitschwerdt, Leah A. Cohn, C. Guillermo Couto, Michael W. Dryden, Lynn C. Guptill, Christina Iazbik, Stephen A. Kania, Patty Lathan, Susan E. Little, Alma Roy, Katherine A. Sayler, Brett A. Stillman, Elizabeth G. Wells, Wendy Wolfson, Michael J. Yabsley

Stephen A Kania

Background This study evaluated the exposure of dogs to three different Ehrlichia spp. in the south and central regions of the United States where vector-borne disease prevalence has been previously difficult to ascertain, particularly beyond the metropolitan areas. Methods Dog blood samples (n = 8,662) were submitted from 14 veterinary colleges, 6 private veterinary practices and 4 diagnostic laboratories across this region. Samples were tested for E. canis, E. chaffeensis and E. ewingii specific antibodies using peptide microtiter ELISAs. Results Overall, E. canis, E. chaffeensis and E. ewingii seroprevalence was 0.8%, 2.8%, and 5.1%, respectively. The highest ...


A Free-Ranging, Feral Mare Equus Caballus Affords Similar Maternal Care To Her Genetic And Adopted Offspring, Cassandra M.V. Nuñez, James S. Adelman, Daniel I. Rubenstein Nov 2013

A Free-Ranging, Feral Mare Equus Caballus Affords Similar Maternal Care To Her Genetic And Adopted Offspring, Cassandra M.V. Nuñez, James S. Adelman, Daniel I. Rubenstein

Cassandra M.V. Nuñez

Adoption of nongenetic offspring occurs in a variety of species but is rare in equids. We report a case of adoption by a free-ranging, feral mare Equus caballus and compare the maternal care received by her genetic offspring (born 1995) to that of her adopted offspring (born 1996) for the first 30 weeks of development. We compare five measures of care: (1) total time spent suckling, (2) mare aggression during suckling, (3) number of mare-terminated suckling bouts, (4) contact maintenance, and (5) mare-foal distance. For most behaviors, we detected no difference in the mare’s treatment of the two foals ...


Genetic Character Of Cyb5 Gene Among Different Pig Breeds.Pdf, Ying Bai, Jibin Zhang, Meiying Fang Oct 2013

Genetic Character Of Cyb5 Gene Among Different Pig Breeds.Pdf, Ying Bai, Jibin Zhang, Meiying Fang

Jibin Zhang

Three single nucleotide polymorphisms (SNPs) at -660bp (deletion of a single guanine base), -380bp (T>C), -69bp (C>T) were identified by sequencing cDNA of CYB5 genes in different Chinese and Foreign pigs. After subsequent detection using microsatellite, pyrosequencing and restriction fragment length polymorphism (RFLP) techniques in large populations of different pig breeds, we found that the mutations in all the SNP sites were favorable in Chinese pigs except LiCha black pigs which were crossed with Landrace pigs before, whereas the wild type nucleotides were favorable in Foreign pigs including Large White, Landrace and Duroc pigs. Therefore, we conclude that ...


Anexdb: An Integrated Animal Annotation And Microarray Expression Database, Oliver Couture, Keith Callenberg, Neeraj Koul, Sushain Pandit, Remy Younes, Zhi-Liang Hu, Jack C.M. Dekkers, James M. Reecy, Vasant G. Honavar, Christopher K. Tuggle Oct 2013

Anexdb: An Integrated Animal Annotation And Microarray Expression Database, Oliver Couture, Keith Callenberg, Neeraj Koul, Sushain Pandit, Remy Younes, Zhi-Liang Hu, Jack C.M. Dekkers, James M. Reecy, Vasant G. Honavar, Christopher K. Tuggle

Sushain Pandit

All publicly available porcine expressed sequences were assembled to create longer, fuller transcripts for annotation purposes. The longer sequences were then used as queries in sequence alignment and comparison software to transfer functional annotation from their homologues in other species. In addition to transferred annotation, sequence variation was also predicted from the assembly. This information can then be used with expression data from high through-put expression measures, such as microarrays, to more fully understand the underlying mechanisms of biological processes. Both kinds of data, expression and annotation, are housed together and available at www.anexdb.org.


Welcome To The Journal Of Evolution And Health, Aaron Blaisdell, Paul Jaminet, David C. Pendergrass Oct 2013

Welcome To The Journal Of Evolution And Health, Aaron Blaisdell, Paul Jaminet, David C. Pendergrass

Aaron P Blaisdell

Welcome to the first issue of the Journal of Evolution and Health! The Journal of Evolution and Health is the peer-reviewed, open-access journal of the Ancestral Health Society, a community of scientists, healthcare professionals, and laypersons who collaborate to understand health challenges from an evolutionary perspective.


Dispersal, Persistence, And Areas Of Core Use Of Re-Introduced Juvenile Lake Sturgeon In The Upper Tennessee River System, Misty Dawn Huddleston Sep 2013

Dispersal, Persistence, And Areas Of Core Use Of Re-Introduced Juvenile Lake Sturgeon In The Upper Tennessee River System, Misty Dawn Huddleston

Misty D Huddleston PhD

The lake sturgeon (Acipenser fulvescens) historically occurred throughout the Tennessee River system but was extirpated by the 1960’s due to over-consumption, and habitat destruction and alteration from pollution, and dam construction. In response to improvements in water quality and other improvements made by the Tennessee Valley Authority (TVA), a multi-agency partnership was formed to reintroduce lake sturgeon in the Upper Tennessee River system. The initial re-introduction occurred in 2000, and to date over 45,000 fish from multiple age classes have been released. Little is known about the behavior of the hatchery-reared juvenile lake sturgeon in this system. A ...


Beef Cattle Breeding Project Progress Report: Growth-Trait Epds For 1998- And 1999-Born Calves, Abebe T. Hassen, Doyle E. Wilson, Gene H. Rouse, Richard G. Tait Jr. Sep 2013

Beef Cattle Breeding Project Progress Report: Growth-Trait Epds For 1998- And 1999-Born Calves, Abebe T. Hassen, Doyle E. Wilson, Gene H. Rouse, Richard G. Tait Jr.

Richard G. Tait Jr.

The Iowa State University beef cattle breeding project was designed to develop two selection lines of beef cattle for use as a research base to answer questions that influence genetic improvement. The project was started in 1996 and is being conducted at the Rhodes (central Iowa) and McNay (southern Iowa) research and demonstration farms.


Comparison Of Ultrasound And Carcass Measures To Predict The Percentage Of Lean Beef From Four Primal Cuts – A Progress Report, Richard G. Tait Jr., Gene H. Rouse, Doyle E. Wilson Sep 2013

Comparison Of Ultrasound And Carcass Measures To Predict The Percentage Of Lean Beef From Four Primal Cuts – A Progress Report, Richard G. Tait Jr., Gene H. Rouse, Doyle E. Wilson

Richard G. Tait Jr.

The objective of this study was to determine how real-time ultrasound (RTU) measurements would compare with carcass measurements to predict the percentage of lean from the four primals (PERL4P). Data were collected on market ready cattle (n=490). Traditional carcass measures collected were: (1) hot carcass weight (HCW); (2) 12–13th rib fat thickness (CFAT); (3) 12–13th rib ribeye area (CREA); and (4) percentage of kidney, pelvic, and heart fat (KPH).


Beef Cattle Breeding Project Progress Report: Body Composition Epds Determined From Ultrasound Measures, Doyle E. Wilson, Abebe T. Hassen, Gene H. Rouse, Richard G. Tait Jr. Sep 2013

Beef Cattle Breeding Project Progress Report: Body Composition Epds Determined From Ultrasound Measures, Doyle E. Wilson, Abebe T. Hassen, Gene H. Rouse, Richard G. Tait Jr.

Richard G. Tait Jr.

The Iowa State University beef cattle breeding project was initiated in 1996, and is being conducted at the Rhodes and McNay Research and Demonstration Farms. The project uses the field data of the American Angus Association (AAA) along with the research resource cattle of the farms to study questions that will enhance the genetic investigations using the field data.


Beef Cattle Breeding Project Progress Report: Growth Trait Epds For 1998-, 1999-, And 2000-Born Calves, Abebe T. Hassen, D. E. Wilson, Gene H. Rouse, Richard G. Tait Jr. Sep 2013

Beef Cattle Breeding Project Progress Report: Growth Trait Epds For 1998-, 1999-, And 2000-Born Calves, Abebe T. Hassen, D. E. Wilson, Gene H. Rouse, Richard G. Tait Jr.

Richard G. Tait Jr.

The Iowa State University beef cattle breeding project was designed to develop two selection lines of beef cattle for use as a research base to answer questions that influence genetic improvement. The project was started in 1996 and is being conducted at Rhodes (central Iowa) and McNay (southern Iowa) research and demonstration farms.


Moving Across The Border: Modeling Migratory Bat Populations, Ruscena Wiederholt, Laura López-Hoffman, Jon Cline, Rodrigo A. Medellín, Paul Cryan, Amy L. Russell, Gary Mccracken, Jay Diffendorfer, Darius Semmens Aug 2013

Moving Across The Border: Modeling Migratory Bat Populations, Ruscena Wiederholt, Laura López-Hoffman, Jon Cline, Rodrigo A. Medellín, Paul Cryan, Amy L. Russell, Gary Mccracken, Jay Diffendorfer, Darius Semmens

Amy L. Russell

The migration of animals across long distances and between multiple habitats presents a major challenge for conservation. For the migratory Mexican free-tailed bat (Tadarida brasiliensis mexicana), these challenges include identifying and protecting migratory routes and critical roosts in two countries, the United States and Mexico. Knowledge and conservation of bat migratory routes is critical in the face of increasing threats from climate change and wind turbines that might decrease migratory survival. We employ a new modeling approach for bat migration, network modeling, to simulate migratory routes between winter habitat in southern Mexico and summer breeding habitat in northern Mexico and ...


Tb157: Capture, Care, And Handling Of Fishers (Martes Pennanti), Herbert C. Frost, William B. Krohn Aug 2013

Tb157: Capture, Care, And Handling Of Fishers (Martes Pennanti), Herbert C. Frost, William B. Krohn

William B. Krohn

These authors brought fishers into captivity to assess the reproductive cycles of both sexes and to monitor females with known reproductive histories. In addition, kits born in captivity were raised to sexual maturity to monitor growth and development. Here they report on the rates at which fishers were caught, the care and maintenance of fishers while in captivity, and the handling procedures used with 44 fishers taken from the wild and 38 fishers conceived in the wild and born in captivity, during the period from 1990 to 1993.


Tb132: An Annotated Bibliography Of Predator Research In Maine, 1974-1988, Stephen M. Arthur, William B. Krohn Aug 2013

Tb132: An Annotated Bibliography Of Predator Research In Maine, 1974-1988, Stephen M. Arthur, William B. Krohn

William B. Krohn

From 1974 to 1988, graduate students (13 M.S. and 5 Ph.D.) and faculty members from the University of Maine conducted a series of studies regarding the ecology of coyotes, red foxes, bobcats, pine martens, fishers, otters, and their prey. This research was reported in 67 theses, journal articles, or other reports, which are abstracted here. An introductory section summarizes the major findings.


Status Of The Habitat Evaluation Procedures, Mel Schamberger, William B. Krohn Aug 2013

Status Of The Habitat Evaluation Procedures, Mel Schamberger, William B. Krohn

William B. Krohn

The 1970s was a decade of increased awareness of environmental problems, and emphasis was placed on the development of procedures for predicting impacts of proposed developmental activities on natural systems. Impact assessment has evolved from a focus on species numbers, human use, species richness, and related methods to include the investigation of habitat as a supplemental or alternative approach to environmental planning, mitigation, species management, and impact assessment (Schamberger 1979, U.S. Fish and Wildlife Service 1980a, 1980b). The impetus for habitat-based assessment techniques came primarily from two sources: (1) environmental legislation requiring noneconomic project evaluations; and (2) an awareness ...


A New Skeleton Of The Cryptoclidid Plesiosaur Tatenectes Laramiensis Reveals A Novel Body Shape Among Plesiosaurs, F. Robin O’Keefe, Hallie P. Street, Benjamin C. Wilhelm, Courtney D. Richards, Helen Zhu Aug 2013

A New Skeleton Of The Cryptoclidid Plesiosaur Tatenectes Laramiensis Reveals A Novel Body Shape Among Plesiosaurs, F. Robin O’Keefe, Hallie P. Street, Benjamin C. Wilhelm, Courtney D. Richards, Helen Zhu

F. Robin O’Keefe

Current knowledge of plesiosaurs of clade Cryptoclidia is constrained by a lack of fossils from outside the Oxford Clay deposits of England. Recent fieldwork in the Sundance Formation of the Bighorn Basin, Wyoming, has resulted in the recovery of significant new fossils of cryptoclidid plesiosaurs, including the small-bodied form Tatenectes laramiensis. A new partial skeleton of this taxon is reported here; it is the most complete and best-preserved example of the taxon found to date, comprising a complete dorsal vertebral series, many ribs and gastralia, and a complete pelvic girdle. This skeleton illuminates several unique features of the taxon, including ...


Osteology Of The Cryptocleidoid Plesiosaur Tatenectes Laramiensis, With Comments On The Taxonomic Status Of The Cimoliasauridae, F. Robin O’Keefe, Hallie P. Street Aug 2013

Osteology Of The Cryptocleidoid Plesiosaur Tatenectes Laramiensis, With Comments On The Taxonomic Status Of The Cimoliasauridae, F. Robin O’Keefe, Hallie P. Street

F. Robin O’Keefe

Recent field work in the Bighorn Basin, Wyoming has recovered significant new material of the plesiosaur Tatenectes laramiensis. The majority of cryptocleidoid plesiosaurs have been recovered from Middle and Upper Jurassic units (Oxford and Kimmeridge Clays, respectively) in the United Kingdom, but Tatenectes laramiensis is one of at least two cryptocleidoids known from the Upper Sundance Member of the Sundance Formation (Oxfordian) of North America. Although poorly known, they bear directly on both the phylogeny and biogeography of the cryptocleidoid plesiosaurs. Here we describe new fossil material of Tatenectes, and reevaluate the phylogenetic position of this genus based on all ...


Kisspeptin Receptor Agonist (Ftm080) Increased Plasma Concentrations Of Luteinizing Hormone In Anestrous Ewes, Brian K. Whitlock, Kelly A. Chameroy, Rebecca R. Payton, Shinya Oishi, Nobutaka Fujii, Joseph A. Daniel Jul 2013

Kisspeptin Receptor Agonist (Ftm080) Increased Plasma Concentrations Of Luteinizing Hormone In Anestrous Ewes, Brian K. Whitlock, Kelly A. Chameroy, Rebecca R. Payton, Shinya Oishi, Nobutaka Fujii, Joseph A. Daniel

Brian K Whitlock, PhD, DVM, DACT

Kisspeptin (KP) and the KP receptor (Kiss1r) are integral to central regulation of the gonadotropic-axis. The demonstration that intravenous infusion of KP can stimulate gonadotropin secretion and ovulation in seasonally anestrous female sheep offers a means of manipulating the reproductive axis. However, KP may be of limited clinical use because of the short circulating half-life. Kiss1r agonists with increased half-life and similar efficacy to KP in vitro potentially may provide beneficial applications in breeding management of many species. However, many of these agonists have not been tested in vivo. This study was designed to test and compare the effects of ...


Neoteny And The Plesiomorphic Condition Of The Plesiosaur Basicranium, F. Robin O’Keefe Jul 2013

Neoteny And The Plesiomorphic Condition Of The Plesiosaur Basicranium, F. Robin O’Keefe

F. Robin O’Keefe

The purpose of this paper is to describe the condition of the braincase in stratigraphically early and morphologically primitive plesiosaurs. Information on the braincase of plesiomorphic taxa is important because it establishes the polarity of characters occurring in more derived plesiosaurs. This paper begins with a short review of braincase anatomy in stem-group sauropterygians. Data on braincase morphology of the plesiomorphic plesiosaur genera Thalassiodracon and Eurycleidus are then presented and interpreted via comparison with other plesiosaurs, stemgroup sauropterygians, and stem diapsids (Araeoscelis). Early diapsids are relevant because plesiosaur skulls more closely resemble early diapsids than stem-group sauropterygians in several key ...


Meloxicam Mediates Short-Term Behavioral Changes Of Castrated Calves, Peter D. Krawczel, Jeff A. Carroll, Nicole C. Burdick Sanchez, Jeff W. Dailey, Joseph A. Daniel, Johann F. Coetzee, Brian K. Whitlock Jun 2013

Meloxicam Mediates Short-Term Behavioral Changes Of Castrated Calves, Peter D. Krawczel, Jeff A. Carroll, Nicole C. Burdick Sanchez, Jeff W. Dailey, Joseph A. Daniel, Johann F. Coetzee, Brian K. Whitlock

Brian K Whitlock, PhD, DVM, DACT

Castration may detrimentally affect the health and performance of weaned calves and painful procedures are increasingly a public concern. Therefore, practical pain mitigation is critical. The objective was to determine the effects of castration (by banding) with or without administration of NSAID, meloxicam, on the behavior of weaned beef calves. Forty-eight (56 d post-weaning) beef calves [10.0 ± 0.2 (mean ± SE) mo old; 304 ± 6 kg BW] were blocked by multiple factors then randomly assigned to 3 treatments (n = 16 calves per treatment: 1) intact bulls (BULL), 2) castration by banding (BAN), or 3) castration by banding with orally-administered ...


Effect Of Meloxicam On Gain And Behavior Of Calves Castrated By Banding Pre-Weaning, Joseph A. Daniel, Peter D. Krawczel, Brian K. Whitlock Jun 2013

Effect Of Meloxicam On Gain And Behavior Of Calves Castrated By Banding Pre-Weaning, Joseph A. Daniel, Peter D. Krawczel, Brian K. Whitlock

Brian K Whitlock, PhD, DVM, DACT

The objective was to determine if oral meloxicam (M; a non-steroid anti-inflammatory) administered at castration of pre-weaning calves affected ADG or behavior. Prior to castration (14 d), Angus bulls were assigned to bull (BULL; n = 7; age 106 ± 6 d; BW = 174.2 ±7.7 kg; scrotal circumference 17.7 ± 0.4 cm), castrated (BAN; n = 12; age = 105 ± 5 d; BW = 144.5 ± 7.6 kg; scrotal circumference = 16 ± 0.4 cm) or castrated with meloxicam (BAN+M; n = 13; age = 121 ± 6 d; BW = 145.8 ± 6 kg; scrotal circumference = 16.1 ± .3 cm) treatments with consideration of ...


Effect Of Meloxicam On Gain And Inflammatory Response Of Calves Castrated By Banding Post-Weaning, Brian K. Whitlock, Peter D. Krawczel, Jeff A. Carroll, Nicole C. Burdick Sanchez, Jeff W. Dailey, Joseph A. Daniel, Johann F. Coetzee Jun 2013

Effect Of Meloxicam On Gain And Inflammatory Response Of Calves Castrated By Banding Post-Weaning, Brian K. Whitlock, Peter D. Krawczel, Jeff A. Carroll, Nicole C. Burdick Sanchez, Jeff W. Dailey, Joseph A. Daniel, Johann F. Coetzee

Brian K Whitlock, PhD, DVM, DACT

Castration may detrimentally affect the health and performance of weaned calves, and painful procedures are increasingly becoming a public concern. The objective of this study was to determine the effects of castration (by banding) with or without administration of meloxicam, a non-steroid anti-inflammatory, on performance and inflammatory response in weaned beef calves. Forty-eight (weaned) beef calves [10.0±0.2 mo old; 304±6 kg BW] were blocked by age, BW, wither height, scrotal circumference, and source, then randomly assigned to 1 of 3 treatments (n=16 calves per treatment: 1) intact bulls (BULL), 2) castration by banding (BAN), or ...


The World’S Deepest Subterranean Community - Krubera-Voronja Cave (Western Caucasus), Alberto Sendra, Ana Sofia P.S. Reboleira Jun 2013

The World’S Deepest Subterranean Community - Krubera-Voronja Cave (Western Caucasus), Alberto Sendra, Ana Sofia P.S. Reboleira

Ana Sofia P.S. Reboleira

Subsurface biota extends over a wide variety of habitats that can be spatially interconnected. The largest communities of this subsurface biota inhabit cavities and are well known mainly in caves where biologists are able to have access. Data about deep subterranean communities and arthropods living under one thousand meters was unknown. An expedition to world’s deepest cave, Krubera-Voronja in Western Caucasus, revealed an interesting subterranean community, living below 2000 meters and represented by more than 12 species of arthropods, including several new species for science. This deep cave biota is composed of troglobionts and also epigean species, that can ...


Evidence Of Pachyostosis In The Cryptocleidoid Plesiosaur Tatenectes Laramiensis From The Sundance Formation Of Wyoming, Hallie P. Street, F. Robin O’Keefe May 2013

Evidence Of Pachyostosis In The Cryptocleidoid Plesiosaur Tatenectes Laramiensis From The Sundance Formation Of Wyoming, Hallie P. Street, F. Robin O’Keefe

F. Robin O’Keefe

In this paper we present evidence for pachyostosis in the cryptocleidoid plesiosaur Tatenectes laramiensis Knight, 1900 (O'Keefe and Wahl, 2003a). Pachyostosis is not common in plesiosaurs and is particularly rare in non-pliosaurian plesiosaurs, although enlarged gastralia were first recognized in Tatenectes by Wahl (1999). This study aims to investigate the nature of the disproportionately large gastralia of Tatenectes m greater depth, based on new material. A recently discovered partial skeleton consisting of a dorsal vertebral series, ribs, gastralia, and a complete pelvic girdle was collected from the Jurassic-aged Sundance Formation of the Bighorn Basin in Wyoming during the summer ...


On The Cranial Anatomy Of The Polycotylid Plesiosaurs, Including New Material Of Polycotylus Latipinnis, Cope, From Alabama, F. Robin O’Keefe May 2013

On The Cranial Anatomy Of The Polycotylid Plesiosaurs, Including New Material Of Polycotylus Latipinnis, Cope, From Alabama, F. Robin O’Keefe

F. Robin O’Keefe

The cranial anatomy of plesiosaurs in the family Polycotylidae (Reptilia: Sauropterygia) has received renewed attention recently because various skull characters are thought to indicate plesiosauroid, rather than pliosauroid, affinities for this family. New data on the cranial anatomy of polycotylid plesiosaurs is presented, and is shown to compare closely to the structure of cryptocleidoid plesiosaurs. The morphology of known polycotylid taxa is reported and discussed, and a preliminary phylogenetic analysis is used to establish ingroup relationships of the Cryptocleidoidea. This study also presents new material referable to Polycotylus latipinnis from the Mooreville Chalk Formation of Alabama. This skeleton is largely ...


The Vertebrate Fauna Of The Upper Permian Of Niger. Iv. Nigerpeton Ricqlesi (Temnospondyli: Cochleosauridae), And The Edopoid Colonization Of Gondwana, J. Sebastien Steyer, Ross Damiani, Christian A. Sidor, F. Robin O’Keefe, Hans C.E. Larsson, Abdoulaye Maga, Oumarou Ide May 2013

The Vertebrate Fauna Of The Upper Permian Of Niger. Iv. Nigerpeton Ricqlesi (Temnospondyli: Cochleosauridae), And The Edopoid Colonization Of Gondwana, J. Sebastien Steyer, Ross Damiani, Christian A. Sidor, F. Robin O’Keefe, Hans C.E. Larsson, Abdoulaye Maga, Oumarou Ide

F. Robin O’Keefe

We describe the edopoid temnospondyl Nigerpeton ricqlesi from the Upper Permian Moradi Formation of northern Niger on the basis of two partial skulls and tentatively associated postcranial material. This crocodile-like taxon displays several edopoid characters states such as a long prenarial region with enlarged premaxillae, elongated vomers, large, posteriorly tapering choanae, and a jugal that broadens anteriorly. Nigerpeton possesses a unique carnivorous dentition. It is autapomorphic in its possession of an extremely elongate snout bearing a maxillary bulge that accommodates three hypertrophied caniniform teeth, inner premaxillary tusks, and anterior paired fenestrae, which pierce the skull roof. In addition, both the ...


Modeling Habitat Associations For The Common Loon (Gavia Immer) At Multiple Scales In Northeastern North America, Anne Kuhn, Jane Copeland, John Cooley, Harry Vogel, Kate Taylor, Diane Nacci, Peter V. August May 2013

Modeling Habitat Associations For The Common Loon (Gavia Immer) At Multiple Scales In Northeastern North America, Anne Kuhn, Jane Copeland, John Cooley, Harry Vogel, Kate Taylor, Diane Nacci, Peter V. August

Peter August

Common Loon (Gavia immer) is considered an emblematic and ecologically important example of aquatic-dependent wildlife in North America. The northern breeding range of Common Loon has contracted over the last century as a result of habitat degradation from human disturbance and lakeshore development. We focused on the state of New Hampshire, USA, where a long-term monitoring program conducted by the Loon Preservation Committee has been collecting biological data on Common Loon since 1976. The Common Loon population in New Hampshire is distributed throughout the state across a wide range of lake-specific habitats, water quality conditions, and levels of human disturbance ...


House Finch Populations Differ In Early Inflammatory Signaling And Pathogen Tolerance At The Peak Of Mycoplasma Gallisepticum Infection, James S. Adelman, Laila Kirkpatrick, Jessica L. Grodio, Dana M. Hawley May 2013

House Finch Populations Differ In Early Inflammatory Signaling And Pathogen Tolerance At The Peak Of Mycoplasma Gallisepticum Infection, James S. Adelman, Laila Kirkpatrick, Jessica L. Grodio, Dana M. Hawley

James S. Adelman

Host individuals and populations often vary in their responses to infection, with direct consequences for pathogen spread and evolution. While considerable work has focused on the mechanisms underlying differences in resistance—the ability to kill pathogens— we know little about the mechanisms underlying tolerance— the ability to minimize fitness losses per unit pathogen. Here, we examine patterns and mechanisms of tolerance between two populations of house finches (Haemorhous [formerly Carpodacus] mexicanus) with different histories with the bacterial pathogen Mycoplasma gallisepticum (MG). After infection in a common environment, we assessed two metrics of pathology, mass loss and eye lesion severity, as ...


Predicting Nesting Habitat Of Northern Goshawks In Mixed Aspen-Lodgepole Pine Forests In A High-Elevation Shrub-Steppe Dominated Landscape., Robert A. Miller, Jay D. Carlisle, Marc J. Bechard, Dena Santini Apr 2013

Predicting Nesting Habitat Of Northern Goshawks In Mixed Aspen-Lodgepole Pine Forests In A High-Elevation Shrub-Steppe Dominated Landscape., Robert A. Miller, Jay D. Carlisle, Marc J. Bechard, Dena Santini

Robert Miller

We developed a habitat suitability model for predicting nest locations of breeding Northern Goshawks (Accipiter gentilis) in the high-elevation mixed forest and shrub-steppe habitat of south-central Idaho, USA. We used elevation, slope, aspect, ruggedness, distance-to-water, canopy cover, and individual bands of Landsat imagery as predictors for known nest locations with logistic regression. We found goshawks prefer to nest in gently-sloping, east-facing, non-rugged areas of dense aspen and lodgepole pine forests with low reflectance in green (0.53 - 0.61 μm) wavelengths during the breeding season. We used the model results to classify our 43,169 hectare study area into nesting ...


Infectious Necrotizing Enteritis And Mortality Caused By Vibrio Carachariae In Summer Flounder Paralichthys Dentatus During Intensive Culture, Bruno Soffientino, Todd Gwaltney, David R. Nelson, Jennifer L. Specker, Michael Mauel, Marta Gomez-Chiarri Apr 2013

Infectious Necrotizing Enteritis And Mortality Caused By Vibrio Carachariae In Summer Flounder Paralichthys Dentatus During Intensive Culture, Bruno Soffientino, Todd Gwaltney, David R. Nelson, Jennifer L. Specker, Michael Mauel, Marta Gomez-Chiarri

David R. Nelson

An epizootic causing mortality among cultured summer flounder Paralichthys dentatus occurred in summer of 1998 at a land-based facility on Narragansett Bay, Rhode Island, USA. The disease, flounder infectious necrotizing enteritis (FINE), was characterized by reddening around the anal area, distended abdomens filled with opaque serosanguineous fluid, enteritis and necrosis of the posterior intestine. In extreme cases of the disease, the posterior intestine was detached from the anus and was observed coming out the vent. The intestine of individuals that recovered from the dsease ended in a blind-sac; the abdomens of these fish were distended, due to food and water ...