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Articles 15061 - 15090 of 36539

Full-Text Articles in Animal Sciences

Determination Of Serum Cardiac Biomarkers And Plasma D-Dimer Levelsin Anemic Sheep With Babesiosis, Özlem Orunç Kilinç, Yaşar Göz, Nazmi̇ Yüksek, Yildiray Başbuğan, Ali̇ Bi̇lgi̇n Yilmaz, Ahmet Duran Ataş Jan 2015

Determination Of Serum Cardiac Biomarkers And Plasma D-Dimer Levelsin Anemic Sheep With Babesiosis, Özlem Orunç Kilinç, Yaşar Göz, Nazmi̇ Yüksek, Yildiray Başbuğan, Ali̇ Bi̇lgi̇n Yilmaz, Ahmet Duran Ataş

Turkish Journal of Veterinary & Animal Sciences

In this study, the cardiac effects of anemia and venous thromboembolism (VTE), reportedly caused by the hemolyzed erythrocytes occurring in sheep with babesiosis, were investigated using cardiac markers and D-dimer (DD). The study included 34 sheep: 24 infected Akkaraman sheep (1-3 years old, diagnosed with babesiosis based on clinical and laboratory findings) and a control group of 10 noninfected healthy sheep of the same breed and age. Hematocrit (Hct) levels were measured in blood obtained from both groups. Cardiac troponin I (cTnI), creatine kinase-MB (CK-MB), and aspartate aminotransferase (AST) levels were measured in serum samples. In addition, the levels of …

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Fattening Performance And Carcass Characteristics Of Turkish Indigenoushair And Honamlı Goat Male Kids, Ahmet Hamdi̇ Aktaş, Beki̇r Gök, Serkan Ateş, Mehmet Emi̇n Teki̇n, İbrahi̇m Halici, Hüseyi̇n Baş, Hakan Erduran, Shinan Kassam Jan 2015

Fattening Performance And Carcass Characteristics Of Turkish Indigenoushair And Honamlı Goat Male Kids, Ahmet Hamdi̇ Aktaş, Beki̇r Gök, Serkan Ateş, Mehmet Emi̇n Teki̇n, İbrahi̇m Halici, Hüseyi̇n Baş, Hakan Erduran, Shinan Kassam

Turkish Journal of Veterinary & Animal Sciences

This study was undertaken to measure the effect of fattening duration (60, 80, and 100 days) on growth performance and carcass characteristics of male kids from indigenous Hair and Honamlı goat breeds reared under intensive fattening systems in Turkey. Fattening duration had a significant effect (P < 0.001) on the fattening performance and a number of carcass characteristics of kids. An interaction was detected between genotype and fattening duration for average daily gain (ADG). Hair goat kids grew at a faster rate than Honamlı kids in the 20-40 day and 40-60 day fattening periods, but they maintained relatively similar ADGs within other fattening periods. On average, over the course of the fattening trial, Honamlı kids grew at an average daily rate of 209 g/head, while Hair goat kids grew at a daily rate of 231 g/head. Dressing percentage and carcass lean and fat percentages of kids increased (P < 0.05-0.001) with slaughter age and weight for both genotypes, whereas the percentage of bone decreased (P < 0.001) with each successive fattening period. No genotypic differences were detected for a number of carcass characteristics at the time of slaughter, with the exception of relatively higher (P < 0.01) fat deposit rates within the kidney and pelvic areas for Hair kids.

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Effects Of Long-Term Starvation And Refeeding On Fatty Acid Metabolism-Relatedgene Expressions In The Liver Of Zebrafish, Danio Rerio, Ayşe Ölmez, Mehtap Bayir, Chunfang Wang, Abdulkadi̇r Bayir Jan 2015

Effects Of Long-Term Starvation And Refeeding On Fatty Acid Metabolism-Relatedgene Expressions In The Liver Of Zebrafish, Danio Rerio, Ayşe Ölmez, Mehtap Bayir, Chunfang Wang, Abdulkadi̇r Bayir

Turkish Journal of Veterinary & Animal Sciences

A 70-day starvation was conducted to determine the effects of long-term starvation on whole-body polyunsaturated fatty acid (PUFA) composition and fatty acid metabolism-related gene expression in the liver of zebrafish, Danio rerio. The starvation period was followed by a 15-day refeeding period to test recovery of both PUFA composition and gene expression levels. It was found that n-3 PUFA and arachidonic acid levels increased during starvation and returned to normal values after refeeding (P < 0.05). Expression of seven (elovl5, fads2, cpt1-β, acox1, acadvl, fabp1a, and fabp7a) of eight total genes downregulated significantly towards the end of the starvation. As a result of refeeding, gene expression of elovl5 and ppar-α returned to the normal levels. Therefore, it was concluded that, in general, mRNA expression of genes involved in fatty acid metabolism was negatively influenced by long-term starvation (70 days); there was no direct relationship between whole-body fatty acid composition and hepatic gene expressions; and 15-day refeeding was insufficient for recovery of starvation-based metabolic losses in zebrafish.

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Serum Pharmacokinetics And Tissue Concentrations Of A Newrecrystallized Enrofloxacin Hydrochloride-Dihydrate In Hamsters, Alma Carrascosa, Alejandro De La Peña, Lilia Gutierrez, Hector Sumano Jan 2015

Serum Pharmacokinetics And Tissue Concentrations Of A Newrecrystallized Enrofloxacin Hydrochloride-Dihydrate In Hamsters, Alma Carrascosa, Alejandro De La Peña, Lilia Gutierrez, Hector Sumano

Turkish Journal of Veterinary & Animal Sciences

Pharmacokinetics (PK), pharmacodynamics (PD), and PK/PD ratios of a new solvate of enrofloxacin (enrofloxacin hydrochloride-dihydrate; enro-C), were studied in hamsters. Enrofloxacin from Baytril1397904493 5% (enroR) served as the reference preparation. Two groups of 60 Syrian golden hamsters were intramuscularly injected individually with 10 mg/kg of enroR or with enro-C. Tissue and serum samples were obtained for 72 h; enrofloxacin concentrations were determined by HPLC with UV detection. Ninety percent minimum inhibitory concentrations (MIC90) were determined for strains of methicillin-resistant Staphylococcus aureus, Leptospira interrogans, and Escherichia coli. All PK variables were statistically different between groups (P < 0.01). CMAX of enrofloxacin for enro-C was 17.3 μg/mL and it was 2.6 μg/mL for enroR. AUC was considerably higher for enro-C (459.2 μg/mL h vs. 19.9 μg/mL h). There were no statistically significant differences in MIC90 values between enroR and enro-C. Tissue concentrations of enro-C in all cases were higher and remained above the MIC for longer periods than those of enroR. Relevant PK/PD ratios for enrofloxacin (AUC/MIC ? 125 and CMAX > MIC = 10-12) are consequently …

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Cows And Plows: Science-Based Conservation For Grassland Songbirds In Agricultural Landscapes, Marisa K. Lipsey Jan 2015

Cows And Plows: Science-Based Conservation For Grassland Songbirds In Agricultural Landscapes, Marisa K. Lipsey

Graduate Student Theses, Dissertations, & Professional Papers

Temperate grasslands are among earth’s most imperiled ecosystems. In North America, steep declines of endemic songbird populations indicate that grassland loss and degradation may be approaching critical levels. Grasslands are agricultural landscapes largely (~85%) under private ownership with little formal protection status. Remaining bird populations depend on grazing lands that have not been converted to cropland. We combine regional data from a hotspot for grassland bird diversity (northeast Montana, USA; 26,500-km2) with continental data spanning the northern Great Plains (1,000,000-km2) to evaluate how land use and management influence bird distribution and abundance. Regionally, habitat used by seven grassland specialists spanned …

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A Study Evaluating Genetic Trends And Molecular Predisposition To Improved Carcass Quality Of Brahman And Brahman Influenced Cattle, Amanda M. Royer Jan 2015

A Study Evaluating Genetic Trends And Molecular Predisposition To Improved Carcass Quality Of Brahman And Brahman Influenced Cattle, Amanda M. Royer

LSU Master's Theses

The first objective of the current study was to evaluate genetic trends from 10 years of the American Brahman Breeders Association Carcass Evaluation Program from 2004 to 2013. Changes of performance in growth, carcass composition, and carcass quality traits were evaluated. Overall means were calculated to report the total average for each trait along with an average rate of change per year. Growth traits evaluated included feedlot entrance weight (INWT), harvest weight (HRVWT), and average daily gain (ADG). Carcass composition and quality traits evaluated included hot carcass weight (HCW), rib eye area (REA), marbling score (MARB), dressing percent (DP), quality …

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A Quantitative And Molecular Evaluation Of Bovine Respiratory Disease, Growth Traits, And Carcass Traits In Crossbred Steers, Samantha Lidia Miller Jan 2015

A Quantitative And Molecular Evaluation Of Bovine Respiratory Disease, Growth Traits, And Carcass Traits In Crossbred Steers, Samantha Lidia Miller

LSU Master's Theses

The first objective of the two studies presented herein evaluated on farm sources of variation and correlated effects contributing to BRD incidence in a population of crossbred steers sent to the feedlot from 2010-2013. Analyses revealed that incidence of BRD was lowly positively correlated to birth weight (BW) and lowly negatively correlated to weaning weight (WW), hip height (HH), sire breed, site, and birth year. These results indicate that the traits analyzed herein are not precursors for BRD in the current population. However, since little is still known about the correlation between genetic predisposition to BRD and animal performance, further …

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The Effect Of Processing Method Of Distiller's Dried Grains With Solubles On Hen Egg Production, Egg Quality, And Yolk Color, Lindsay Renee Brunet Jan 2015

The Effect Of Processing Method Of Distiller's Dried Grains With Solubles On Hen Egg Production, Egg Quality, And Yolk Color, Lindsay Renee Brunet

LSU Master's Theses

Distiller’s dried grains with solubles (DDGS) is a common byproduct of the ethanol industry and is used in animal feeds. Carotenoids (xanthophylls) are already present in the human eye, and increasing the amount of carotenoids in the eye can help prevent eye diseases. The purpose of this research was to confirm that adding DDGS to standard corn and soybean meal hen diets may increase the amount of lutein available in egg yolks. An experiment was conducted with Hy-Line W-36 hens to evaluate the effects of DDGS in corn-soybean meal diets. Three hundred fifteen hens were fed one of seven treatment …

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Live And Carcass Characteristics Of Boer- And Savannah-Cross Kid Buckling Goats Fed Dried Distillers Grain With Solubles, James Neil Maynard Jan 2015

Live And Carcass Characteristics Of Boer- And Savannah-Cross Kid Buckling Goats Fed Dried Distillers Grain With Solubles, James Neil Maynard

LSU Master's Theses

The available supply of domestic goat meat has not matched the increased demand for goat meat. High cost of production is a concern of goat producers, with feed being a major factor in input expenses. Increasing slaughter weight of kid meat goats would increase the available goat meat, but requires added nutrition beyond that obtained from typical forage based systems for goat production. Savannah bucklings (n=31) and Boer bucklings (n=28) were stratified by weight and breed and were randomly assigned a treatment of 0 (T1), 15 (T2), 30 (T3), or 45 (T4) percent dried distillers grain with solubles (DDGS). One …

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Casitas: A Location-Dependent Ecological Trap For Juvenile Caribbean Spiny Lobsters, Panulirus Argus, Benjamin C. Gutzler, Mark J. Butler Iv, Donald C. Behringer Jan 2015

Casitas: A Location-Dependent Ecological Trap For Juvenile Caribbean Spiny Lobsters, Panulirus Argus, Benjamin C. Gutzler, Mark J. Butler Iv, Donald C. Behringer

Biological Sciences Faculty Publications

Casitas are artificial shelters used by fishers to aggregate Caribbean spiny lobsters (Panulirus argus) for ease of capture. However, casitas may function as an ecological trap for juvenile lobsters if they are attracted to casitas and their growth or mortality is poorer compared with natural shelters. We hypothesized that juvenile lobsters may be at particular risk if attracted to casitas because they are less able than larger individuals to defend themselves, and do not forage far from shelter. We compared the nutritional condition, relative mortality, and activity of lobsters of various sizes in casitas and natural shelters in adult and …

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The Effect Of Parental Size On Spermatophore Production, Egg Quality, Fertilization Success, And Larval Characteristics In The Caribbean Spiny Lobster, Panulirus Argus, Mark J. Butler Iv, Alison Macdiarmid, Gaya Gnanalingam Jan 2015

The Effect Of Parental Size On Spermatophore Production, Egg Quality, Fertilization Success, And Larval Characteristics In The Caribbean Spiny Lobster, Panulirus Argus, Mark J. Butler Iv, Alison Macdiarmid, Gaya Gnanalingam

Biological Sciences Faculty Publications

The average size of spiny lobsters (Decapoda; Palinuridae) has decreased worldwide over the past few decades. Market forces coupled with minimum size limits compel fishers to target the largest individuals. Males are targeted disproportionately as a consequence of sexual dimorphism in spiny lobster size (i.e. males grow larger than females) and because of protections for ovigerous females. Therefore, overexploitation of males has led to sperm limitation in several decapod populations with serious repercussions for reproductive success. In the Caribbean spiny lobster, Panulirus argus, little is known about the effect of reduced male size on fertilization success or the role …

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Geometric Morphometric Analysis Of Pan Frontal Bone Morphology, Allen J. Myhra Jan 2015

Geometric Morphometric Analysis Of Pan Frontal Bone Morphology, Allen J. Myhra

Department of Anthropology: Theses and Student Research

This study employs geometric morphometric methods to investigate the morphology and shape change of the frontal bone for Pan troglodytes and Pan paniscus. Unlike previous work on the topic, this research analyzed morphology and ontogenetic shape change in a single bone of the cranium, namely the frontal bone. Frontal bone shape was compared between juvenile Pan troglodytes and Pan paniscus and the ontogeny of the bone was assessed in Pan paniscus infants and juveniles. Analyses were performed on frontal bone morphology with and without the browridge in order to assess the morphology of the frontal apart from influences …

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The Effects Of Lampricide 3-Trifluoromethyl-4-Nitrophenol Toxicity On The Gills Of Larval Sea Lamprey And Non-Target Rainbow Trout And Lake Sturgeon, Lisa A. Sorensen Jan 2015

The Effects Of Lampricide 3-Trifluoromethyl-4-Nitrophenol Toxicity On The Gills Of Larval Sea Lamprey And Non-Target Rainbow Trout And Lake Sturgeon, Lisa A. Sorensen

Theses and Dissertations (Comprehensive)

The pesticide, 3-trifluoromethyl-4-nitrophenol (TFM), is widely used in the Great Lakes to control invasive sea lampreys (Petromyzon marinus) populations, but much about its sub-lethal effects remains unknown. A better understanding of its toxicity is needed to improve TFM effectiveness and to protect non-target organisms from its potential adverse effects. The objectives of this thesis were to test the following two hypotheses: (1) impairment of mitochondrial ATP production by TFM interferes with ATP-dependent ion-uptake by fish, leading to altered electrolyte balance, and (2) perturbations of gill function by TFM are exacerbated in soft, ion poor water (SW; 40 mg …

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Application Of Otolith Chemical Signatures To Estimate Population Connectivity Of Red Snapper In The Western Gulf Of Mexico, Michelle Zapp Sluis, Beverly K. Barnett, William F. Patterson, James H. Cowan, Alan M. Shiller Jan 2015

Application Of Otolith Chemical Signatures To Estimate Population Connectivity Of Red Snapper In The Western Gulf Of Mexico, Michelle Zapp Sluis, Beverly K. Barnett, William F. Patterson, James H. Cowan, Alan M. Shiller

Faculty Publications

Otolith chemical signatures of Red Snapper Lutjanus campechanus from six nursery regions were used to estimate the sources of recruits to four sampling regions in the western Gulf of Mexico (Gulf) and to estimate whether postsettlement mixing of Red Snapper occurs between the U.S. and Mexican portions of the western Gulf. In a previous study, region-specific otolith signatures (element : Ca ratios: Ba:Ca, Mg:Ca, Mn:Ca, Sr:Ca, and Li:Ca; stable isotope delta values: δ13C and δ18O) were developed based on age-0 Red Snapper (2005–2007 year-classes) sampled from the six nursery areas. In the present study, subadult and …

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First Successful Capture And Satellite Tracking Of A West Indian Manatee (Trichechus Manatus) In Panama: Feasibility Of Capture And Telemetry Techniques, Daniel Gonzalez-Socoloske, James P. Reid, Carlos Espinoza-Marin, Kherson E. Ruiz, Kenneth E. Glander, Leon David Olivera-Gomez Jan 2015

First Successful Capture And Satellite Tracking Of A West Indian Manatee (Trichechus Manatus) In Panama: Feasibility Of Capture And Telemetry Techniques, Daniel Gonzalez-Socoloske, James P. Reid, Carlos Espinoza-Marin, Kherson E. Ruiz, Kenneth E. Glander, Leon David Olivera-Gomez

Faculty Publications

It is currently unknown how important the Central American countries south of Belize are as a link between manatee populations in the north (Belize and Mexico) and populations in South America. Therefore, apart from knowing where manatees are found, it is important to understand how manatees are using these habitats and if they are moving between countries or distinct population centers. Here we report the results of a multi-national and multiinstitutional collaboration resulting in the first successful capture and satellite tracking of a West Indian manatee in southern Central America.

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Ua1c11/55 Gordon Wilson Photo Collection, Wku Archives Dec 2014

Ua1c11/55 Gordon Wilson Photo Collection, Wku Archives

WKU Archives Collection Inventories

Photographs taken by and of Gordon Wilson.

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The Status Of Fishes In The Missouri River, Nebraska: Shoal Chub (Macrhybopsis Hyostoma), Sturgeon Chub (M. Gelida), Sicklefin Chub (M. Meeki), Silver Chub (M. Storeriana), Flathead Chub (Platygobio Gracilis), Plains Minnow (Hybognathus Placitus), Western Silvery Minnow (H. Argyritis), And Brassy Minnow (H. Hankinsoni), Kirk D. Steffensen, Dane A. Shuman, Sam Stukel Dec 2014

The Status Of Fishes In The Missouri River, Nebraska: Shoal Chub (Macrhybopsis Hyostoma), Sturgeon Chub (M. Gelida), Sicklefin Chub (M. Meeki), Silver Chub (M. Storeriana), Flathead Chub (Platygobio Gracilis), Plains Minnow (Hybognathus Placitus), Western Silvery Minnow (H. Argyritis), And Brassy Minnow (H. Hankinsoni), Kirk D. Steffensen, Dane A. Shuman, Sam Stukel

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Throughout the past century, the Missouri River has been highly modified which has negatively affected the native fish community. Previous research quantified the reduction of several native Cyprinidae species and made several recommendations to aid in recovery. However, these recommendations were not implemented. Therefore, the objective of this paper is to assess the current population trends of eight native cyprinid species and develop the current management objectives. Over 335,000 fish were collected from the Missouri River along Nebraska’s eastern border with mini-fyke nets and otter trawls from 2003 to 2012. Target Cyprinidae species consisted of less than five percent (n …

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The Status Of Fishes In The Missouri River, Nebraska: Sauger (Sander Canadensis), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman Dec 2014

The Status Of Fishes In The Missouri River, Nebraska: Sauger (Sander Canadensis), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Early fisheries investigation of the Missouri River fish community indicated that Sauger were common throughout Nebraska, including all major Missouri River tributaries. However due to many factors, their current range is restricted to the Missouri River and the lower reaches of a few tributaries. Hesse (1994) recommended listing Sauger as a state endangered species but this recommendation was never implemented. Therefore, the objective of this paper is to reevaluate the current population status of Sauger in the Missouri River along Nebraska’s border. Over 2,100 Sauger have been captured from the Missouri River along Nebraska’s eastern border since 2003. Sauger were …

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Traceable And Transparent Fishing In The Indian Ocean Addressing Iuu, Ghazi Salahuddin Dec 2014

Traceable And Transparent Fishing In The Indian Ocean Addressing Iuu, Ghazi Salahuddin

World Maritime University Dissertations

Traceability and transparency in fishing and the trade of fish products has been brought to the forefront of the international fisheries policy agenda and is recognized as a core issue. Governments have awakened to the fact that IUU (illegal, unreported and unregulated) fishing has global impacts on the social, economic and ecological aspects of fisheries and therefore requires regional collaboration to combat this global issue. Developing countries severely suffer from the effects of IUU, particularly within their exclusive economic zones (EEZ) due to lack of resources and infrastructure to properly manage waters under their jurisdiction and in remote areas where …

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American Society Of Parasitologists Newsletter, V. 36, Nos. 3-4, Fall-Winter 2014, Scott Lyell Gardner Dec 2014

American Society Of Parasitologists Newsletter, V. 36, Nos. 3-4, Fall-Winter 2014, Scott Lyell Gardner

American Society of Parasitologists: Newsletter

No abstract provided.

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Winter Activity Of Bats In Southeastern Nebraska: An Acoustic Study, Jeremy A. White, Brett R. Andersen, Hans W. Otto, Cliff A. Lemen, Patricia W. Freeman Dec 2014

Winter Activity Of Bats In Southeastern Nebraska: An Acoustic Study, Jeremy A. White, Brett R. Andersen, Hans W. Otto, Cliff A. Lemen, Patricia W. Freeman

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Many North American bats are active outside hibernacula in winter, but no information on winter activity has been reported for Nebraska. We recorded activity of bats during two winters (December-February 2012-2013 and 2013-2014) at one location in southeastern Nebraska with an acoustic detector. Bats were active throughout both winters and temperature at sunset was a good predictor of bat activity. Red bats (Lasiurus borealis) were active at our site in early December but were not recorded later in winter. We suspect these individuals were late migrants to more southern wintering sites. Big brown bats (Eptesicus fuscus) …

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Registration Of ‘Newell’ Smooth Bromegrass, K P. Vogel, R B. Mitchell, B L. Waldron, M R. Haferkamp, J D. Berdahl, D D. Baltensperger, Galen Erickson, T J. Klopfenstein Dec 2014

Registration Of ‘Newell’ Smooth Bromegrass, K P. Vogel, R B. Mitchell, B L. Waldron, M R. Haferkamp, J D. Berdahl, D D. Baltensperger, Galen Erickson, T J. Klopfenstein

Green Canyon Environmental Research Area, Logan Utah

No abstract provided.

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New Approaches To Corn Silage Use In Beef Cattle Finishing Diets, Dirk B. Burken Dec 2014

New Approaches To Corn Silage Use In Beef Cattle Finishing Diets, Dirk B. Burken

Department of Animal Science: Dissertations, Theses, and Student Research

Cattle feeders are considering alternative feedstuffs to replace expensive corn grain and decrease rations costs. Feeding corn silage allows cattle feeders to take advantage of the entire corn plant at a time of maximum quality and tonnage as well as secure substantial quantities of roughage and grain inventory. Distiller’s grains have proven to be economical and are now a commonplace ingredient in feedlot finishing diets. Experiments were conducted to determine the effects of feeding increased concentrations of corn silage in replacement of corn grain in finishing diets containing distillers grains. Feedlot gains and gain:feed ratios were reduced as corn silage …

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Biological And Physiological Condition Of Juvenile California Halibut (Paralichthys Californicus) Exposed To A Contamination Gradient In Mission Bay, Ca, Kevin Stolzenbach Dec 2014

Biological And Physiological Condition Of Juvenile California Halibut (Paralichthys Californicus) Exposed To A Contamination Gradient In Mission Bay, Ca, Kevin Stolzenbach

Theses

Contaminated sediments in marine environments have been shown to be good indicators of ecological risk and a means to assess anthropogenic impacts on marine habitats and the animals that inhabit them (Long et al. 1995, Rattner 2009). Estuarine sediments are especially complex media with regard to physical, chemical, and biological characteristics that trap, store, modify and sometimes release contaminants to the biota (Long et al. 1995). Especially vulnerable are animals that are in constant contact with the sediments, such as flatfishes that partially bury themselves for camouflage (Costa et al. 2011). Impacts can be assessed in a number of ways, …

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Comparative Genome Analyses Reveal Distinct Structure In The Saltwater Crocodile Mhc., Weerachai Jaratlerdsiri, Janine Deakin, Ricardo M. Godinez, Xueyan Shan, Daniel G. Peterson, Sylvain Marthey, Eric Lyons, Fiona M. Mccarthy, Sally R. Isberg, Damien P. Higgins, Amanda Y. Chong, John St. John, Travis C. Glenn, David A. Ray, Jaime Gongora Dec 2014

Comparative Genome Analyses Reveal Distinct Structure In The Saltwater Crocodile Mhc., Weerachai Jaratlerdsiri, Janine Deakin, Ricardo M. Godinez, Xueyan Shan, Daniel G. Peterson, Sylvain Marthey, Eric Lyons, Fiona M. Mccarthy, Sally R. Isberg, Damien P. Higgins, Amanda Y. Chong, John St. John, Travis C. Glenn, David A. Ray, Jaime Gongora

CALS Publications

The major histocompatibility complex (MHC) is a dynamic genome region with an essential role in the adaptive immunity of vertebrates, especially antigen presentation. The MHC is generally divided into subregions (classes I, II and III) containing genes of similar function across species, but with different gene number and organisation. Crocodylia (crocodilians) are widely distributed and represent an evolutionary distinct group among higher vertebrates, but the genomic organisation of MHC within this lineage has been largely unexplored. Here, we studied the MHC region of the saltwater crocodile (Crocodylus porosus) and compared it with that of other taxa. We characterised genomic clusters …

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The Non-Lethal Effects Of Climate Change On The Territoriality Of Lottia Gigantea, Tracey Gunanto, Christina Chavez, Jessica Martinez, William G. Wright Dec 2014

The Non-Lethal Effects Of Climate Change On The Territoriality Of Lottia Gigantea, Tracey Gunanto, Christina Chavez, Jessica Martinez, William G. Wright

Student Scholar Symposium Abstracts and Posters

The intertidal zone has been described as ground zero for global warming. Here, the owl limpet, Lottia gigantea, adapted to the cool ocean temperatures, must withstand a few hours of baking sun during day-time low tides. This hardship is predicted to increase in frequency and severity in the future as the globe warms. Our research hypothesized that heat events compromise territorial behavior of L. gigantea. All observations and experiments were performed at Inspiration Point near Newport Beach, California. We measured the natural radiant temperature of tagged limpets during day-time low tides using a field-calibrated infrared “thermogun”. We also …

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The Role Of Mate Preference And Personality On Reproductive Performance In An Ex-Situ Conservation Breeding Program For The Giant Panda (Ailuropoda Melanoleuca), Meghan S. Martin Dec 2014

The Role Of Mate Preference And Personality On Reproductive Performance In An Ex-Situ Conservation Breeding Program For The Giant Panda (Ailuropoda Melanoleuca), Meghan S. Martin

Dissertations and Theses

Successful captive-breeding and re-introduction programs must have the ability to breed a surplus of genetically suitable animals for release into the wild. Unfortunately, many individuals in captive breeding programs often do not reproduce even when they are apparently healthy and presented with genetically appropriate mates. Mate choice can affect multiple parameters of reproductive sperformance, including mating success, offspring production, survival, and fecundity. We investigated the role of mate preference and personality on the reproductive performance of male and female giant pandas (Ailuropoda melanoleuca) as measured by intromission success and litter production. We conducted these studies on giant pandas at the …

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Differences In The Diversity Of Frogspecies Between Sierra Lloronaand El Valle, Panama, Kei Okabe Thurber Dec 2014

Differences In The Diversity Of Frogspecies Between Sierra Lloronaand El Valle, Panama, Kei Okabe Thurber

Independent Study Project (ISP) Collection

Panama is home to the greatest diversity of species in all of Central America. It is home to 174 species of frogs, 35 of which are endemic to Panama. Frogs are a vital part of many ecosystems. They maintain insect populations and act as food sources for larger predators. Their job of maintaining insect populations is essential to curbing the spread of diseases. Additionally, scientists have found chemical compounds in the skin of frogs that can be used to treat pain and prevent infections. The main threat to the majority of frogs is the deadly fungus Batrachochytrium dendrobatidis (Bd), or …

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Avian Diversity Across Three Distinct Agricultural Landscapes In Guadalupe, Chiriquí Highlands, Panama, Jarred Jones Dec 2014

Avian Diversity Across Three Distinct Agricultural Landscapes In Guadalupe, Chiriquí Highlands, Panama, Jarred Jones

Independent Study Project (ISP) Collection

Deforestation of tropical forest for agricultural purposes threatens habitat loss of native species. The value of various agricultural landscapes in conserving avian populations is useful in determining diversity-conscious development plans. However, generalized results from regionalscale studies cannot be implemented to insular avian habitats. This study serves as the only current avian diversity study of the Chiriquí Highlands. To determine the effect of agricultural land use within an insular avian habitat, I compared avian diversity and site population similarity in Guadalupe, Chiriquí Highlands of the Talamanca Range, Panama. I hypothesized that avian diversity is greatest at forest edge followed by forest …

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Cascades Island Lamprey Passage Structure: Evaluating Passage And Migration Following Structure Modifications, Siena Marie Lopez-Johnston Dec 2014

Cascades Island Lamprey Passage Structure: Evaluating Passage And Migration Following Structure Modifications, Siena Marie Lopez-Johnston

Dissertations and Theses

Pacific lamprey (Entosphenus tridentatus), an endemic species to the Columbia River Basin, U.S.A, has experienced staggering decreases in returns to spawning territories in recent decades. As lamprey are threatened severely by a lack of passage at mainstem dams, lamprey specific passage structures have been designed and constructed to address the problem. The Cascades Island Lamprey Passage Structure (LPS) at Bonneville Dam is the longest and steepest structure of its type, following the addition of an exit pipe which allows lampreys to travel from the tailrace of the dam to the forebay. The intent of this study was to …

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