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Seaside Sparrows Reveal Contrasting Food Web Responses To Large-Scale Stressors In Coastal Louisiana Saltmarshes, J A. Olin, C M. Burns, S Woltmann, S S. Taylor, J A. Olin, W Bam, L Hooper-Bui, R. Eugene Turner Jan 2017

Seaside Sparrows Reveal Contrasting Food Web Responses To Large-Scale Stressors In Coastal Louisiana Saltmarshes, J A. Olin, C M. Burns, S Woltmann, S S. Taylor, J A. Olin, W Bam, L Hooper-Bui, R. Eugene Turner

Faculty Publications

Large-scale ecosystem disturbances can alter the flow of energy through food webs, but such processes are not well defined for Gulf of Mexico saltmarsh ecosystems vulnerable to multiple interacting stressors. The 2010 Deepwater Horizon (DWH) oil spill significantly affected the composition of terrestrial saltmarsh communities in Louisiana, and thus had the potential to alter energy pathways through terrestrial and aquatic food webs, with direct consequences for higher trophic-level species restricted to these habitats. The Seaside Sparrow (Ammodramus maritimus) is endemic to saltmarshes and relies completely on the habitat and resources they provide; thus, the sparrows can serve as indicators of …

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Just Us, R. Eugene Turner Jan 2017

Just Us, R. Eugene Turner

Faculty Publications

Introduction: A thorough understanding of ecology is a necessity as the Earth becomes crowded, there is more intense resource use and exhaustion, and the exposure to pollutants has diversified. Outcomes: Everyone must be involved as we develop the moral compass and maps for a desirable world. The transition will be made within the context of complex social forces, which must be engaged in purposeful collaboration and action. All individuals have the embryonic need and possess diverse abilities to contribute to the transcendence of problems arising from the human response to social inequities. Discussion: These will be difficult and nuanced transitions. …

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Introduction, Victor H. Rivera-Monroy, Erik Kristensen, Shing Yip Lee, Robert R. Twilley Jan 2017

Introduction, Victor H. Rivera-Monroy, Erik Kristensen, Shing Yip Lee, Robert R. Twilley

Faculty Publications

One of the major issues we currently need to address in mangrove ecological research is the causes (qualitative and quantitative) that drive current mismanagement and degradation of mangrove wetlands; one of the most productive and valuable coastal ecosystems in the world. This is a complex task, and we need to consider the complex interactions between social and ecological systems, including an evaluation of state-of-the-art mangrove ecosystem science. For instance, the attempts to refine and improve the significance of mangrove wetlands’ economic value include not only the most visible and well-recognized mangrove ecosystem services around the world, e.g., fisheries and wood …

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Biogeochemical Cycles: Global Approaches And Perspectives, Erik Kristensen, Rod M. Connolly, Xose L. Otero, Cyril Marchand, Tiago O. Ferreira, Victor H. Rivera-Monroy Jan 2017

Biogeochemical Cycles: Global Approaches And Perspectives, Erik Kristensen, Rod M. Connolly, Xose L. Otero, Cyril Marchand, Tiago O. Ferreira, Victor H. Rivera-Monroy

Faculty Publications

This chapter uses a literature review to advance our understanding of the biogeochemical functioning of mangrove wetlands and to elucidate biogeographic differences. We identify potential sources of variation in biogeochemical processes among various locations and analyze current advances in evaluating transformations of carbon (C) and other critical elements (e.g., N, P, S, Fe, Mn) in the context of mangrove conservation and management priorities. We also identify knowledge gaps and research priorities across biogeographic regions and latitudes. Mangrove forests inhabit unique locations at the interface between marine and terrestrial environments and, as such, possess attributes that characterize both environments. Because of …

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Mangrove Ecosystems: A Global Biogeographic Perspective: Structure, Function, And Services, Victor H. Rivera-Monroy, Erik Kristensen, Shing Yip Lee, Robert R. Twilley Jan 2017

Mangrove Ecosystems: A Global Biogeographic Perspective: Structure, Function, And Services, Victor H. Rivera-Monroy, Erik Kristensen, Shing Yip Lee, Robert R. Twilley

Faculty Publications

This book presents a comprehensive overview and analysis of mangrove ecological processes, structure, and function at the local, biogeographic, and global scales and how these properties interact to provide key ecosystem services to society. The analysis is based on an international collaborative effort that focuses on regions and countries holding the largest mangrove resources and encompasses the major biogeographic and socio-economic settings of mangrove distribution. Given the economic and ecological importance of mangrove wetlands at the global scale, the chapters aim to integrate ecological and socio-economic perspectives on mangrove function and management using a system-level hierarchical analysis framework. The book …

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Diversity Of Evoked Astrocyte Ca2+ Dynamics Quantified Through Experimental Measurements And Mathematical Modeling., Taheri M, Handy G, Borisyuk A, White Ja Jan 2017

Diversity Of Evoked Astrocyte Ca2+ Dynamics Quantified Through Experimental Measurements And Mathematical Modeling., Taheri M, Handy G, Borisyuk A, White Ja

Faculty Publications

No abstract provided.

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Anatomical And Electrophysiological Clustering Of Superficial Medial Entorhinal Cortex Interneurons., Martínez Jj, Rahsepar B, White Ja Jan 2017

Anatomical And Electrophysiological Clustering Of Superficial Medial Entorhinal Cortex Interneurons., Martínez Jj, Rahsepar B, White Ja

Faculty Publications

No abstract provided.

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Gumbo Yearbook, Class Of 2017, Louisiana State University And Agricultural And Mechanical College Jan 2017

Gumbo Yearbook, Class Of 2017, Louisiana State University And Agricultural And Mechanical College

Gumbo Yearbook

The Gumbo yearbook chronicles the entire academic year at LSU. In words and especially photos, the Gumbo shows the people, places, and events that make each year unique. In addition to formal portraits of schools and departments, the book contains hundreds of snapshots of students with their friends and dozens of pages showcasing organizations.

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Androgen Receptor Agonists Increase Lean Mass, Improve Cardiopulmonary Functions And Extend Survival In Preclinical Models Of Duchenne Muscular Dystrophy, Suriyan Ponnusamy, Ryan D. Sullivan, Dahui You, Nadeem Zafar, Chuan He Yang, Thirumagal Thiyagarajan, Daniel L. Johnson, Maron L. Barrett, Nikki J. Koehler, Mayra Star, Erin J. Stephenson, Dave Bridges, Stephania A. Cormier, Lawrence M. Pfeffer, Ramesh Narayanan Jan 2017

Androgen Receptor Agonists Increase Lean Mass, Improve Cardiopulmonary Functions And Extend Survival In Preclinical Models Of Duchenne Muscular Dystrophy, Suriyan Ponnusamy, Ryan D. Sullivan, Dahui You, Nadeem Zafar, Chuan He Yang, Thirumagal Thiyagarajan, Daniel L. Johnson, Maron L. Barrett, Nikki J. Koehler, Mayra Star, Erin J. Stephenson, Dave Bridges, Stephania A. Cormier, Lawrence M. Pfeffer, Ramesh Narayanan

Faculty Publications

© The Author 2017. Duchenne muscular dystrophy (DMD) is a neuromuscular disease that predominantly affects boys as a result of mutation(s) in the dystrophin gene. DMD is characterized by musculoskeletal and cardiopulmonary complications, resulting in shorter life-span. Boys afflicted by DMD typically exhibit symptoms within 3-5 years of age and declining physical functions before attaining puberty. We hypothesized that rapidly deteriorating health of pre-pubertal boys with DMD could be due to diminished anabolic actions of androgens in muscle, and that intervention with an androgen receptor (AR) agonist will reverse musculoskeletal complications and extend survival. While castration of dystrophin and utrophin …

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A Neonatal Murine Model Of Mrsa Pneumonia, Elizabeth A. Fitzpatrick, Dahui You, Bishwas Shrestha, David Siefker, Vivek S. Patel, Nikki Yadav, Sridhar Jaligama, Stephania A. Cormier Jan 2017

A Neonatal Murine Model Of Mrsa Pneumonia, Elizabeth A. Fitzpatrick, Dahui You, Bishwas Shrestha, David Siefker, Vivek S. Patel, Nikki Yadav, Sridhar Jaligama, Stephania A. Cormier

Faculty Publications

© 2017 Fitzpatrick et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Pneumonia due to methicillin-resistant Staphylococcus aureus (MRSA) is a significant cause of morbidity and mortality in infants particularly following lower respiratory tract viral infections such as Respiratory Syncytial Virus (RSV). However, the mechanisms by which co-infection of infants by MRSA and RSV cause increased lung pathology are unknown. Because the infant immune system is qualitatively and quantitatively different from adults we …

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Longitudinal Analysis Of A Diversity Support Program In Biology: A National Call For Further Assessment, Cissy J. Ballen, Nicholas A. Mason Jan 2017

Longitudinal Analysis Of A Diversity Support Program In Biology: A National Call For Further Assessment, Cissy J. Ballen, Nicholas A. Mason

Faculty Publications

© The Author(s) 2017. National calls to improve the performance and persistence of students from historically underrepresented backgrounds in science have led to a surge of research on inclusive, evidence-based teaching methods. Less work has revealed the effects of diversity support initiatives that improve campus climate and community cohesion. Here, we examine whether participation in the Biology Scholars Program (BSP) at Cornell University-a diversity support program at a prominent university-affects underrepresented racial minority (URM) student performance. We found that BSP participants are less academically prepared when they enter college but typically have GPAs similar to those of their non-BSP counterparts …

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The Guerrilla Hunters: Irregular Conflicts During The Civil War, Ralph Mann Jan 2017

The Guerrilla Hunters: Irregular Conflicts During The Civil War, Ralph Mann

Civil War Book Review

A New Collection on Civil War Guerrillas The essays in this collection continue the conversation started by Michael Fellman, Robert R. Mackey, and especially Daniel E. Sutherland. Fellman's Inside War (1989) emphasized how the guerrilla war in Missouri broke down expectations of civilized be....

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Look At Lincoln: Grant Restored, Frank J. Williams Jan 2017

Look At Lincoln: Grant Restored, Frank J. Williams

Civil War Book Review

Grant By Chernow, Ron Publisher:Penguin Press Retail Price: $40.00 ISBN:159420487X Grant Restored When both academicians and the general public ache for leaders with a genuine path forward, this book appears at an apt time. Grant, as Ron Chernow beautifully narrat....

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The Black Newspaper And The Chosen Nation, Mitch Kachun Jan 2017

The Black Newspaper And The Chosen Nation, Mitch Kachun

Civil War Book Review

Being Chosen, Being Free Over the past two decades scholars from several disciplines and subfields have been steadily expanding our knowledge about African American print culture, with attention devoted to black writers and publishers, readers, newspapers, and the communities they helped to create.....

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William Tecumseh Sherman In The Service Of My Country: A Life, Kevin Dougherty Jan 2017

William Tecumseh Sherman In The Service Of My Country: A Life, Kevin Dougherty

Civil War Book Review

The Continuing Relevance of William Sherman When William Sherman was yet a cadet at West Point, he proudly declared himself "in the service of my country" (161). James McDonough chronicles this journey of service that brought Sherman from humble cadet to full general in William Tecumseh Sherman....

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Black Woman Reformer: Ida B. Wells, Lynching, And Transatlantic Activism, Mark Summers Jan 2017

Black Woman Reformer: Ida B. Wells, Lynching, And Transatlantic Activism, Mark Summers

Civil War Book Review

Beyond the Water's Edge: Ida B. Wells and the Renewal of Transatlantic Activism In what may have been the darkest period of race relations after the Civil War, the mid-1890s, a flaring light of exposure and protest burst forth when Ida B. Wells published her exposures of lynch law and its connecti....

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Vanishing America: Species Extinction, Racial Peril, And The Origins Of Conservation, Eric Herschthal Jan 2017

Vanishing America: Species Extinction, Racial Peril, And The Origins Of Conservation, Eric Herschthal

Civil War Book Review

To Preserve Nature and Protect Whiteness: Environmentalism after the Civil War In July 2015, The New York Times ran an op-ed that focused on a well-known problem: our national parks and the environmental movement that spawned them are overwhelmingly white. Minorities comprised 22 percent of ....

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Vínculos Históricos Entre Nueva Orleans, Luisiana Y Cuba, Andrew Sluyter, Annie Mcneill Gibson, Case Watkins, James Chaney Jan 2017

Vínculos Históricos Entre Nueva Orleans, Luisiana Y Cuba, Andrew Sluyter, Annie Mcneill Gibson, Case Watkins, James Chaney

Faculty Publications

This paper examines the historical ties between Cuba and New Orleans. It makes a summary of the economic relationships between this country and this U. S. city from the 18th century until the present day. Additionally, potentially positive effects these ties could have on New Orleans and Cuba’s culture and economy when US-Cuba relations are completely normalized in the future are examined as well.

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Obese Zdf Rats Fermented Resistant Starch With Effects On Gut Microbiota But No Reduction In Abdominal Fat, Felicia Goldsmith, Justin Guice, Ryan Page, David A. Welsh, Christopher M. Taylor, Eugene E. Blanchard, Meng Luo, Anne M. Raggio, Rhett W. Stout, Diana Carvajal-Aldaz, Amanda Gaither, Christine Pelkman, Jianping Ye, Roy J. Martin, James Geaghan, Holiday A. Durham, Diana Coulon, Michael J. Keenan Jan 2017

Obese Zdf Rats Fermented Resistant Starch With Effects On Gut Microbiota But No Reduction In Abdominal Fat, Felicia Goldsmith, Justin Guice, Ryan Page, David A. Welsh, Christopher M. Taylor, Eugene E. Blanchard, Meng Luo, Anne M. Raggio, Rhett W. Stout, Diana Carvajal-Aldaz, Amanda Gaither, Christine Pelkman, Jianping Ye, Roy J. Martin, James Geaghan, Holiday A. Durham, Diana Coulon, Michael J. Keenan

Faculty Publications

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Scope: To determine if whole-grain (WG) flour with resistant starch (RS) will produce greater fermentation than isolated RS in obese Zucker Diabetic Fatty (ZDF) rats, and whether greater fermentation results in different microbiota, reduced abdominal fat, and increased insulin sensitivity. Methods and results: This study utilized four groups fed diets made with either isolated digestible control starch, WG control flour (6.9% RS), isolated RS-rich corn starch (25% RS), or WG corn flour (25% RS). ZDF rats fermented RS and RS-rich WG flour to greatest extent among groups. High-RS groups had increased …

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Biodistribution Of Orally Administered Poly(Lactic-Co-Glycolic) Acid Nanoparticles For 7 Days Followed By 21 Day Recovery In F344 Rats, Sara M. Navarro, Sean Swetledge, Timothy Morgan, Carlos E. Astete, Rhett Stout, Diana Coulon, Cristina M. Sabliov Jan 2017

Biodistribution Of Orally Administered Poly(Lactic-Co-Glycolic) Acid Nanoparticles For 7 Days Followed By 21 Day Recovery In F344 Rats, Sara M. Navarro, Sean Swetledge, Timothy Morgan, Carlos E. Astete, Rhett Stout, Diana Coulon, Cristina M. Sabliov

Faculty Publications

© 2016 Elsevier B.V. The aim of this research was to assess biodistribution of orally administered poly(lactide-co-glycolide) acid nanoparticles (PLGA NPs) in rats and investigate the excretion of PLGA nanoparticles after administration has ended. The experiment was divided into 2 phases. In phase I, F344 rats were orally administered fluorescently tagged PLGA nanoparticles daily (3 mg/day) for 7 days, followed by a mass balance analysis which was performed on tissues of interest to determine NP biodistribution. In phase II, after 7 days of oral exposure, rats were no longer administered PLGA NPs, and amount of NPs excreted was measured each …

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Factors Affecting Fecal Egg Counts In Periparturient Katahdin Ewes And Their Lambs, D. R. Notter, J. M. Burke, J. E. Miller, J. L.M. Morgan Jan 2017

Factors Affecting Fecal Egg Counts In Periparturient Katahdin Ewes And Their Lambs, D. R. Notter, J. M. Burke, J. E. Miller, J. L.M. Morgan

Faculty Publications

© 2017 American Society of Animal Science. All rights reserved. Selection for low fecal egg counts (FEC) can be used to genetically enhance resistance to gastrointestinal nematode parasites in growing lambs, thereby reducing the frequency of use of anthelmintics, facilitating marketing of organic lamb, and reducing the risk of development of anthelmintic resistance by the parasite. Recording of FEC in lambs has, therefore, been incorporated into several national sheep genetic evaluation programs. Ewes in late gestation and early lactation are also vulnerable to parasite infection and commonly experience a periparturient rise in FEC. This study was designed to assess factors …

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Season Progression, Ontogenesis, And Environment Affect Lespedeza Cuneata Herbage Condensed Tannin, Fiber, And Crude Protein Concentrations, James P. Muir, Thomas H. Terrill, Jorge A. Mosjidis, Jean Marie Luginbuhl, James E. Miller, Joan M. Burke, Samuel W. Coleman Jan 2017

Season Progression, Ontogenesis, And Environment Affect Lespedeza Cuneata Herbage Condensed Tannin, Fiber, And Crude Protein Concentrations, James P. Muir, Thomas H. Terrill, Jorge A. Mosjidis, Jean Marie Luginbuhl, James E. Miller, Joan M. Burke, Samuel W. Coleman

Faculty Publications

© Crop Science Society of America. Sericea lespedeza [Lespedeza cuneata (Dumont de Courset) G. Don., SL] is a perennial, warm-season forage legume with wide adaptation, freeze tolerance, establishment ease, and persistence under grazing. It has high condensed tannin (CT) concentrations (g kg−1), which could be useful for methane mitigation and rumen bypass protein, as well as insect pest and gastro-intestinal nematode suppression. However, CT concentration is variable. Our objective was to test CT, crude protein (CP), and fiber concentrations at five locations (Georgia, Alabama, North Carolina, Louisiana, and Texas) during a growing season. Established ‘AU Grazer’ SL regrowth and accumulated …

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Biodistribution Of Orally Administered Poly(Lactic-Co-Glycolic) Acid Nanoparticles For 7 Days Followed By 21 Day Recovery In F344 Rats, Sara M. Navarro, Sean Swetledge, Timothy Morgan, Carlos E. Astete, Rhett Stout, Diana Coulon, Cristina M. Sabliov Jan 2017

Biodistribution Of Orally Administered Poly(Lactic-Co-Glycolic) Acid Nanoparticles For 7 Days Followed By 21 Day Recovery In F344 Rats, Sara M. Navarro, Sean Swetledge, Timothy Morgan, Carlos E. Astete, Rhett Stout, Diana Coulon, Cristina M. Sabliov

Faculty Publications

© 2016 Elsevier B.V. The aim of this research was to assess biodistribution of orally administered poly(lactide-co-glycolide) acid nanoparticles (PLGA NPs) in rats and investigate the excretion of PLGA nanoparticles after administration has ended. The experiment was divided into 2 phases. In phase I, F344 rats were orally administered fluorescently tagged PLGA nanoparticles daily (3 mg/day) for 7 days, followed by a mass balance analysis which was performed on tissues of interest to determine NP biodistribution. In phase II, after 7 days of oral exposure, rats were no longer administered PLGA NPs, and amount of NPs excreted was measured each …

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Obese Zdf Rats Fermented Resistant Starch With Effects On Gut Microbiota But No Reduction In Abdominal Fat, Felicia Goldsmith, Justin Guice, Ryan Page, David A. Welsh, Christopher M. Taylor, Eugene E. Blanchard, Meng Luo, Anne M. Raggio, Rhett W. Stout, Diana Carvajal-Aldaz, Amanda Gaither, Christine Pelkman, Jianping Ye, Roy J. Martin, James Geaghan, Holiday A. Durham, Diana Coulon, Michael J. Keenan Jan 2017

Obese Zdf Rats Fermented Resistant Starch With Effects On Gut Microbiota But No Reduction In Abdominal Fat, Felicia Goldsmith, Justin Guice, Ryan Page, David A. Welsh, Christopher M. Taylor, Eugene E. Blanchard, Meng Luo, Anne M. Raggio, Rhett W. Stout, Diana Carvajal-Aldaz, Amanda Gaither, Christine Pelkman, Jianping Ye, Roy J. Martin, James Geaghan, Holiday A. Durham, Diana Coulon, Michael J. Keenan

Faculty Publications

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Scope: To determine if whole-grain (WG) flour with resistant starch (RS) will produce greater fermentation than isolated RS in obese Zucker Diabetic Fatty (ZDF) rats, and whether greater fermentation results in different microbiota, reduced abdominal fat, and increased insulin sensitivity. Methods and results: This study utilized four groups fed diets made with either isolated digestible control starch, WG control flour (6.9% RS), isolated RS-rich corn starch (25% RS), or WG corn flour (25% RS). ZDF rats fermented RS and RS-rich WG flour to greatest extent among groups. High-RS groups had increased …

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Pomegranate Juice And Extract Extended Lifespan And Reduced Intestinal Fat Deposition In Caenorhabditis Elegans, Jolene Zheng, David Heber, Mingming Wang, Chenfei Gao, Steven B. Heymsfield, Roy J. Martin, Frank L. Greenway, John W. Finley, Jeffrey H. Burton, William D. Johnson, Frederick M. Enright, Michael J. Keenan, Zhaoping Li Jan 2017

Pomegranate Juice And Extract Extended Lifespan And Reduced Intestinal Fat Deposition In Caenorhabditis Elegans, Jolene Zheng, David Heber, Mingming Wang, Chenfei Gao, Steven B. Heymsfield, Roy J. Martin, Frank L. Greenway, John W. Finley, Jeffrey H. Burton, William D. Johnson, Frederick M. Enright, Michael J. Keenan, Zhaoping Li

Faculty Publications

© 2019 Hogrefe. Pomegranate juice with a high content of polyphenols, pomegranate extract, ellagic acid, and urolithin A, have anti-oxidant and anti-obesity effects in humans. Pomegranate juice extends lifespan of Drosophila melanogaster. Caenorhabditis elegans (C. elegans) (n = 6) compared to the control group in each treatment, lifespan was increased by pomegranate juice in wild type (N2, 56 %, P < 0.001) and daf-16 mutant (daf-16(mgDf50)I) (18 %, P = 0.00012), by pomegranate extract in N2 (28 %, P = 0.00004) and in daf-16(mgDf50)I (10 %, P < 0.05), or by ellagic acid (11 %, P < 0.05). Pomegranate juice reduced intestinal fat deposition (IFD) in C. elegans (n = 10) N2 (–68 %, P = 0.0003) or in the daf-16(mgDf50)I (–33 %, P = 0.0034). The intestinal fat deposition was increased by pomegranate extract in N2 (137 %, P < 0.0138) and in daf-16(mgDf50)I (26 %, P = 0.0225), by ellagic acid in N2 (66 %, P < 0.0001) and in daf-16(mgDf50)I (74 %, P < 0.0001), or by urolithin A in N2 (57 %, P = 0.0039) and in daf-16(mgDf50)I (43 %, P = 0.0001). These effects were partially mediated by the daf-16 pathway. The data may offer insights to human aging and obesity due to homology with C. elegans.

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Physical Geology: With Emphasis On America's National Part Areas, 2nd Edition, Brooks B. Ellwood Jan 2017

Physical Geology: With Emphasis On America's National Part Areas, 2nd Edition, Brooks B. Ellwood

Faculty Publications

No abstract provided.

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Wnt Regulation Of Embryonic Development Likely Involves Pathways Independent Of Nuclear Ctnnb1, Paula Tribulo, James I. Moss, Manabu Ozawa, Zongliang Jiang, Xiuchun Cindy Tian, Peter J. Hansen Jan 2017

Wnt Regulation Of Embryonic Development Likely Involves Pathways Independent Of Nuclear Ctnnb1, Paula Tribulo, James I. Moss, Manabu Ozawa, Zongliang Jiang, Xiuchun Cindy Tian, Peter J. Hansen

Faculty Publications

© 2017 Society for Reproduction and Fertility. The bovine was used to examine the potential for WNT signaling to affect the preimplantation embryo. Expression of seven key genes involved in canonical WNT signaling declined to a nadir at the morula or blastocyst stage. Expression of 80 genes associated with WNT signaling in the morula and inner cell mass (ICM) and trophectoderm (TE) of the blastocyst was also evaluated. Many genes associated with WNT signaling were characterized by low transcript abundance. Seven genes were different between ICM and TE, and all of them were overexpressed in TE as compared to ICM, …

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The Dynamic Evolutionary History Of Genome Size In North American Woodland Salamanders, Catherine E. Newman, T. Ryan Gregory, Christopher C. Austin Jan 2017

The Dynamic Evolutionary History Of Genome Size In North American Woodland Salamanders, Catherine E. Newman, T. Ryan Gregory, Christopher C. Austin

Faculty Publications

© 2017 Published by NRC Research Press. The genus Plethodon is the most species-rich salamander genus in North America, and nearly half of its species face an uncertain future. It is also one of the most diverse families in terms of genome sizes, which range from 1C = 18.2 to 69.3 pg, or 5-20 times larger than the human genome. Large genome size in salamanders results in part from accumulation of transposable elements and is associated with various developmental and physiological traits. However, genome sizes have been reported for only 25% of the species of Plethodon (14 of 55). We …

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Phylogeography And Species Delimitation In Convict Cichlids (Cichlidae: Amatitlania): Implications For Taxonomy And Plio-Pleistocene Evolutionary History In Central America, Justin C. Bagley, Wilfredo A. Matamoros, Caleb D. Mcmahan, Michael Tobler, Prosanta Chakrabarty, Jerald B. Johnson Jan 2017

Phylogeography And Species Delimitation In Convict Cichlids (Cichlidae: Amatitlania): Implications For Taxonomy And Plio-Pleistocene Evolutionary History In Central America, Justin C. Bagley, Wilfredo A. Matamoros, Caleb D. Mcmahan, Michael Tobler, Prosanta Chakrabarty, Jerald B. Johnson

Faculty Publications

© 2016 The Linnean Society of London. We investigate phylogeographic patterns and delimit species boundaries within Amatitlania, a genus of Central American cichlid fishes. Phylogenetic analyses of mitochondrial DNA sequences from 318 individuals spanning the geographical ranges of all three currently recognized Amatitlania species strongly supported one major clade, with a relatively diverged subclade corresponding to A. kanna samples from eastern Costa Rica and Panama. Gene trees and networks revealed marked incongruences between phylogeographic structure and morpho-species taxonomy as a result of species-level polyphyly. Bayes factor comparisons of species delimitation models accounting for incomplete lineage sorting under the multispecies coalescent …

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Louisiana Agriculture Winter, 2017, Lsu Agcenter Jan 2017

Louisiana Agriculture Winter, 2017, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

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