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Bottom Redox Model (Brom V.1.1): A Coupled Benthic-Pelagic Model For Simulation Of Water And Sediment Biogeochemistry, Evgeniy V. Yakushev, Elizaveta A. Protsenko, Jorn Bruggeman, Philip Wallhead, Svetlana V. Pakhomova, Shamil Kh Yakubov, Richard G.J. Bellerby, Raoul Marie Couture Feb 2017

Bottom Redox Model (Brom V.1.1): A Coupled Benthic-Pelagic Model For Simulation Of Water And Sediment Biogeochemistry, Evgeniy V. Yakushev, Elizaveta A. Protsenko, Jorn Bruggeman, Philip Wallhead, Svetlana V. Pakhomova, Shamil Kh Yakubov, Richard G.J. Bellerby, Raoul Marie Couture

Faculty Publications

© Author(s) 2017. Interactions between seawater and benthic systems play an important role in global biogeochemical cycling. Benthic fluxes of some chemical elements (e.g., C, N, P, O, Si, Fe, Mn, S) alter the redox state and marine carbonate system (i.e., pH and carbonate saturation state), which in turn modulate the functioning of benthic and pelagic ecosystems. The redox state of the near-bottom layer in many regions can change with time, responding to the supply of organic matter, physical regime, and coastal discharge. We developed a model (BROM) to represent key biogeochemical processes in the water and sediments and to …

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Geographic Variation In Apparent Competition Between Native And Invasive Phragmites Australis, Ganesh P. Bhattarai, Laura A. Meyerson, James T. Cronin Feb 2017

Geographic Variation In Apparent Competition Between Native And Invasive Phragmites Australis, Ganesh P. Bhattarai, Laura A. Meyerson, James T. Cronin

Faculty Publications

© 2016 by the Ecological Society of America. Apparent competition, the negative interaction between species mediated by shared natural enemies, is thought to play an important role in shaping the structure and dynamics of natural communities. However, its importance in driving species invasions, and whether the strength of this indirect interaction varies across the latitudinal range of the invasion, has not been fully explored. We performed replicated field experiments at four sites spanning 900 km along the Atlantic Coast of the United States to assess the presence and strength of apparent competition between sympatric native and invasive lineages of Phragmites …

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Biogeography Of A Plant Invasion: Genetic Variation And Plasticity In Latitudinal Clines For Traits Related To Herbivory, Ganesh P. Bhattarai, Laura A. Meyerson, Jack Anderson, David Cummings, Warwick J. Allen, James T. Cronin Feb 2017

Biogeography Of A Plant Invasion: Genetic Variation And Plasticity In Latitudinal Clines For Traits Related To Herbivory, Ganesh P. Bhattarai, Laura A. Meyerson, Jack Anderson, David Cummings, Warwick J. Allen, James T. Cronin

Faculty Publications

© 2016 by the Ecological Society of America. The juxtaposition of plant-species invasions with latitudinal gradients in herbivore pressure is an important yet mostly unexplored issue in invasion biology. Latitudinal clines in defense and palatability to herbivores are expected to exist in native plant species but the evolution of these clines may lag behind for invasive plant species resulting in non-parallel latitudinal clines that may impact invasion success. Our study focused on a native and European invasive lineages of the common reed Phragmites australis in North America. Using native and invasive genotypes of P. australis collected across a 17° latitudinal …

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Predictability Of Helminth Parasite Host Range Using Information On Geography, Host Traits And Parasite Community Structure, Tad Dallas, Andrew W. Park, John M. Drake Feb 2017

Predictability Of Helminth Parasite Host Range Using Information On Geography, Host Traits And Parasite Community Structure, Tad Dallas, Andrew W. Park, John M. Drake

Faculty Publications

© Cambridge University Press 2016. Host-parasite associations are complex interactions dependent on aspects of hosts (e.g. traits, phylogeny or coevolutionary history), parasites (e.g. traits and parasite interactions) and geography (e.g. latitude). Predicting the permissive host set or the subset of the host community that a parasite can infect is a central goal of parasite ecology. Here we develop models that accurately predict the permissive host set of 562 helminth parasites in five different parasite taxonomic groups. We developed predictive models using host traits, host taxonomy, geographic covariates, and parasite community composition, finding that models trained on parasite community variables were …

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Why Do Plants Need So Many Cyclin-Dependent Kinase Inhibitors?, Narender Kumar, John C. Larkin Feb 2017

Why Do Plants Need So Many Cyclin-Dependent Kinase Inhibitors?, Narender Kumar, John C. Larkin

Faculty Publications

© 2017 Taylor & Francis Group, LLC. Cell cycle regulation is fundamental to growth and development, and Cyclin-Dependent Kinase Inhibitors (CKIs) are major negative regulators of the cell cycle. Plant genomes encode substantially more CKIs than metazoan or fungal genomes. Plant CKIs fall into 2 distinct families, KIP-RELATED PROTEINS (KRPs) and SIAMESE-RELATED proteins (SMRs). SMRs can inhibit both S-phase and M-phase CDK complexes in vitro and are transcribed throughout the cell cycle, yet SMRs do not inhibit DNA replication in vivo. This suggests that SMRs must be activated post transcriptionally after the start of S-phase, but the mechanism of this …

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Gibberellin Signaling Requires Chromatin Remodeler Pickle To Promote Vegetative Growth And Phase Transitions, Jeongmoo Park, Dong Ha Oh, Maheshi Dassanayake, Khoa Thi Nguyen, Joe Ogas, Giltsu Choi, Tai Ping Sun Feb 2017

Gibberellin Signaling Requires Chromatin Remodeler Pickle To Promote Vegetative Growth And Phase Transitions, Jeongmoo Park, Dong Ha Oh, Maheshi Dassanayake, Khoa Thi Nguyen, Joe Ogas, Giltsu Choi, Tai Ping Sun

Faculty Publications

© 2017 American Society of Plant Biologists. All rights reserved. PICKLE (PKL) is an ATP-dependent chromodomain-helicase-DNA-binding domain (CHD3) chromatin remodeling enzyme in Arabidopsis (Arabidopsis thaliana). Previous studies showed that PKL promotes embryonic-to-vegetative transition by inhibiting expression of seed-specific genes during seed germination. The pkl mutants display a low penetrance of the “pickle root” phenotype, with a thick and green primary root that retains embryonic characteristics. The penetrance of this pickle root phenotype in pkl is dramatically increased in gibberellin (GA)-deficient conditions. At adult stages, the pkl mutants are semidwarfs with delayed flowering time, which resemble reduced GA-signaling mutants. These findings …

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Controls On Erosion Patterns And Sediment Transport In A Monsoonal, Tectonically Quiescent Drainage, Song Gianh, Central Vietnam, Tara N. Jonell, Peter D. Clift, Long V. Hoang, Tina Hoang, Andrew Carter, Hella Wittmann, Philipp Böning, Katharina Pahnke, Tammy Rittenour Feb 2017

Controls On Erosion Patterns And Sediment Transport In A Monsoonal, Tectonically Quiescent Drainage, Song Gianh, Central Vietnam, Tara N. Jonell, Peter D. Clift, Long V. Hoang, Tina Hoang, Andrew Carter, Hella Wittmann, Philipp Böning, Katharina Pahnke, Tammy Rittenour

Faculty Publications

© 2016 The Authors. Basin Research © 2016 John Wiley & Sons Ltd, European Association of Geoscientists & Engineers and International Association of Sedimentologists The Song Gianh is a small-sized (~3500 km2), monsoon-dominated river in northern central Vietnam that can be used to understand how topography and climate control continental erosion. We present major element concentrations, together with Sr and Nd isotopic compositions, of siliciclastic bulk sediments to define sediment provenance and chemical weathering intensity. These data indicate preferential sediment generation in the steep, wetter upper reaches of the Song Gianh. In contrast, detrital zircon U-Pb ages argue for significant …

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Adaptation To Heat Stress Reduces Phenotypic And Transcriptional Plasticity In A Marine Copepod, Morgan W. Kelly, M. Sabrina Pankey, Melissa B. Debiasse, David C. Plachetzki Feb 2017

Adaptation To Heat Stress Reduces Phenotypic And Transcriptional Plasticity In A Marine Copepod, Morgan W. Kelly, M. Sabrina Pankey, Melissa B. Debiasse, David C. Plachetzki

Faculty Publications

© 2016 The Authors. Functional Ecology © 2016 British Ecological Society Organisms may respond to changing environments through phenotypic plasticity or adaptive evolution. These two processes are not mutually exclusive and may either dampen or strengthen each other's effects, depending on the genetic correlation between trait values and the slopes of their norms of reaction. To examine the effect of adaptation to heat stress on the plasticity of heat tolerance, we hybridized populations of the crustacean Tigriopus californicus that show divergent phenotypes for heat tolerance. We then selected for increased heat tolerance in hybrids and measured heat tolerance and the …

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Bacteria Associated With Piezodorus Guildinii (Hemiptera: Pentatomidae), With Special Reference To Those Transmitted By Feeding, Claudia Husseneder, Jong Seok Park, Andrea Howells, Chinmay V. Tikhe, Jeffrey A. Davis Feb 2017

Bacteria Associated With Piezodorus Guildinii (Hemiptera: Pentatomidae), With Special Reference To Those Transmitted By Feeding, Claudia Husseneder, Jong Seok Park, Andrea Howells, Chinmay V. Tikhe, Jeffrey A. Davis

Faculty Publications

The redbanded stink bug, Piezodorus guildinii (Westwood) (Hemiptera: Heteroptera: Pentatomidae), is a rapidly growing pest damaging southern US agriculture. Pentatomid stink bugs are known to vector bacterial, fungal, and viral plant diseases. However, bacteria associated with redbanded stink bugs and their vector potential have not yet been assessed. In this study, we 1) cultured and identified bacteria transmitted by feeding of redbanded stink bug and 2) described bacteria from guts of redbanded stink bug individuals using next-generation sequencing of 16S rRNA genes. Nineteen bacteria transmitted by feeding of redbanded stink bug on soybean agar were isolated and identified via Sanger …

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Monitoring Mexican Rice Borer (Lepidoptera: Crambidae) Populations In Sugarcane And Rice With Conventional And Electronic Pheromone Traps, B. E. Wilson, J. M. Beuzelin, M. T. Vanweelden, T. E. Reagan, M. O. Way Feb 2017

Monitoring Mexican Rice Borer (Lepidoptera: Crambidae) Populations In Sugarcane And Rice With Conventional And Electronic Pheromone Traps, B. E. Wilson, J. M. Beuzelin, M. T. Vanweelden, T. E. Reagan, M. O. Way

Faculty Publications

The Mexican rice borer, Eoreuma loftini (Dyar), is a major pest of sugarcane, Saccharum spp., rice, Oryza sativa L., and other graminaceous crops in Texas and Louisiana. The ability of conventional and electronic pheromone traps to monitor E. loftini in sugarcane and rice habitats was evaluated in two separate 2-yr field studies. Bucket traps baited with a synthetic female sex pheromone monitored E. loftini populations in commercial sugarcane fields in Calcasieu and Jefferson Davis Parishes throughout the 2014 and 2015 growing seasons. The number of E. loftini captured differed among months, but not between years or parishes. The percentage of …

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Post-Hurricane Successional Dynamics In Abundance And Diversity Of Canopy Arthropods In A Tropical Rainforest, T. D. Schowalter, M. R. Willig, S. J. Presley Feb 2017

Post-Hurricane Successional Dynamics In Abundance And Diversity Of Canopy Arthropods In A Tropical Rainforest, T. D. Schowalter, M. R. Willig, S. J. Presley

Faculty Publications

We quantified long-term successional trajectories of canopy arthropods on six tree species in a tropical rainforest ecosystem in the Luquillo Mountains of Puerto Rico that experienced repeated hurricane-induced disturbances during the 19-yr study (1991-2009). We expected: 1) differential performances of arthropod species to result in taxon- or guild-specific responses; 2) differences in initial conditions to result in distinct successional responses to each hurricane; and 3) the legacy of hurricane-created gaps to persist despite subsequent disturbances. At least one significant effect of gap, time after hurricane, or their interaction occurred for 53 of 116 analyses of taxon abundance, 31 of 84 …

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Generalization And Fine Mapping Of European Ancestry-Based Central Adiposity Variants In African Ancestry Populations, S. Yoneyama, J. Yao, X. Guo, L. Fernandez-Rhodes, U. Lim, J. Boston, P. Buzková, C. S. Carlson, I. Cheng, B. Cochran, R. Cooper, G. Ehret, M. Fornage, J. Gong, M. Gross, C. C. Gu, J. Haessler, C. A. Haiman, B. Henderson, L. A. Hindorff, D. Houston, M. R. Irvin, R. Jackson, L. Kuller, M. Leppert, C. E. Lewis, R. Li, L. Le Marchand, T. C. Matise, K. Dh Nguyen, A. Chakravarti, J. S. Pankow, N. Pankratz Feb 2017

Generalization And Fine Mapping Of European Ancestry-Based Central Adiposity Variants In African Ancestry Populations, S. Yoneyama, J. Yao, X. Guo, L. Fernandez-Rhodes, U. Lim, J. Boston, P. Buzková, C. S. Carlson, I. Cheng, B. Cochran, R. Cooper, G. Ehret, M. Fornage, J. Gong, M. Gross, C. C. Gu, J. Haessler, C. A. Haiman, B. Henderson, L. A. Hindorff, D. Houston, M. R. Irvin, R. Jackson, L. Kuller, M. Leppert, C. E. Lewis, R. Li, L. Le Marchand, T. C. Matise, K. Dh Nguyen, A. Chakravarti, J. S. Pankow, N. Pankratz

Faculty Publications

Background/Objectives:Central adiposity measures such as waist circumference (WC) and waist-to-hip ratio (WHR) are associated with cardiometabolic disorders independently of body mass index (BMI) and are gaining clinically utility. Several studies report genetic variants associated with central adiposity, but most utilize only European ancestry populations. Understanding whether the genetic associations discovered among mainly European descendants are shared with African ancestry populations will help elucidate the biological underpinnings of abdominal fat deposition.Subjects/Methods:To identify the underlying functional genetic determinants of body fat distribution, we conducted an array-wide association meta-analysis among persons of African ancestry across seven studies/consortia participating in the Population Architecture using …

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The Early Birds And The Rest: Do First Nesters Represent The Entire Colony?, Jón Einar Jónsson, Smári J. Lúðvíksson, Michael D. Kaller Feb 2017

The Early Birds And The Rest: Do First Nesters Represent The Entire Colony?, Jón Einar Jónsson, Smári J. Lúðvíksson, Michael D. Kaller

Faculty Publications

Climate change studies have detected earlier spring arrival of breeding birds. However, first nest dates (date first nests were found), which commonly provide the metric for earlier arrival, can be biased by population size or sampling effort. Our aims were to determine if: 1) first nest dates and median nest date (date when at least 50 % of all females have nested) were equivalent predictors for the spring arrival and 2) first nest date or median nest date were related to nest numbers. We recorded first and median nest dates and nest numbers at the common eider (Somateria mollissima) colony …

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Development Of A Combined Osmotic Dehydration And Cryogenic Freezing Process For Minimizing Quality Changes During Freezing With Application To Fruits And Vegetables, Juan Li, Arranee Chotiko, Emmanuel Kyereh, Jie Zhang, Chen Liu, Vondel Vandeker Reyes Ortega, David Bankston, Subramaniam Sathivel Feb 2017

Development Of A Combined Osmotic Dehydration And Cryogenic Freezing Process For Minimizing Quality Changes During Freezing With Application To Fruits And Vegetables, Juan Li, Arranee Chotiko, Emmanuel Kyereh, Jie Zhang, Chen Liu, Vondel Vandeker Reyes Ortega, David Bankston, Subramaniam Sathivel

Faculty Publications

The effect of a combined osmo-dehydro-cryogenic-freezing process on quality characteristics of fruits and vegetables was evaluated. Cut-tomato-pieces were used as a model vegetable to evaluate the process. Tomatoes had 15.74% water loss and 0.22% solids gain after 24 h of osmotic dehydration in a 55% (w/w) maltodextrin solution at 35C, and increased redness was observed in osmotically dehydrated samples with lycopene content of 1244.78 µg/g of dry mass. Under liquid nitrogen cryogenic freezing at −40C osmotic pretreated tomato samples had shorter freezing time (3.13 min) and higher freezing rate (16.53C/min) than untreated samples (4.48 min and 11.58C/min, respectively). Pretreated-thawed tomato …

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Patchiness Of Phytoplankton And Primary Production In Liaodong Bay, China, Shaofeng Pei, Edward A. Laws, Haibo Zhang, Siyuan Ye, Hongming Yuan, Haiyue Liu Feb 2017

Patchiness Of Phytoplankton And Primary Production In Liaodong Bay, China, Shaofeng Pei, Edward A. Laws, Haibo Zhang, Siyuan Ye, Hongming Yuan, Haiyue Liu

Faculty Publications

A comprehensive study of water quality, phytoplankton biomass, and photosynthetic rates in Liaodong Bay, China, during June and July of 2013 revealed two large patches of high biomass and production with dimensions on the order of 10 km. Nutrient concentrations were above growth-rate-saturating concentrations throughout the bay, with the possible exception of phosphate at some stations. The presence of the patches therefore appeared to reflect the distribution of water temperature and variation of light penetration restricted by water turbidity. There was no patch of high phytoplankton biomass or production in a third, linear patch of water with characteristics suitable for …

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Summer Camp Garden Project: An Opportunity To Grow The Next Generation Of Horticulturists, Carly Gillett, Kathryn Fontenot, Edward Bush, Maud Walsh, Charles Johnson Feb 2017

Summer Camp Garden Project: An Opportunity To Grow The Next Generation Of Horticulturists, Carly Gillett, Kathryn Fontenot, Edward Bush, Maud Walsh, Charles Johnson

Faculty Publications

Agriculture is fundamental to meeting Americans’ basic needs—clothing, housing, and food. As the average farmer’s age increases, there is a need to develop programs to encourage youth to pursue careers in agriculture and become the next generation of farmers. This study developed and implemented a horticultural curriculum focusing on vegetable production at a summer camp setting. Targeted participants were aged 9 to 12 years. Pre- and posttests were given to both the treatment group (campers participating in the victory garden track) and the control group (campers participating in a Wetlands track). The pre-and posttest evaluated campers’ science-based knowledge and confidence. …

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Wind Wave Behavior In Fetch And Depth Limited Estuaries, Arash Karimpour, Qin Chen, Robert R. Twilley Jan 2017

Wind Wave Behavior In Fetch And Depth Limited Estuaries, Arash Karimpour, Qin Chen, Robert R. Twilley

Faculty Publications

Wetland dominated estuaries serve as one of the most productive natural ecosystems through their ecological, economic and cultural services, such as nursery grounds for fisheries, nutrient sequestration, and ecotourism. The ongoing deterioration of wetland ecosystems in many shallow estuaries raises concerns about the contributing erosive processes and their roles in restraining coastal restoration efforts. Given the combination of wetlands and shallow bays as landscape components that determine the function of estuaries, successful restoration strategies require knowledge of wind wave behavior in fetch and depth limited water as a critical design feature. We experimentally evaluate physics of wind wave growth in …

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A Model For The Ergosterol Biosynthetic Pathway In Chlamydomonas Reinhardtii, Kristy M. Brumfield, Susan M. Laborde, James V. Moroney Jan 2017

A Model For The Ergosterol Biosynthetic Pathway In Chlamydomonas Reinhardtii, Kristy M. Brumfield, Susan M. Laborde, James V. Moroney

Faculty Publications

© 2017 British Phycological Society. Ergosterol and 7-dehydroporiferasterol are the predominant sterols in the membranes of the alga Chlamydomonas reinhardtii Dangeard. Ergosterol is primarily found in most fungi, which produce their end-product sterols by way of the intermediate lanosterol. In contrast, plants rarely make ergosterol and plant sterols are made via the intermediate cycloartenol. The cycloartenol-lanosterol bifurcation has been used as a means to evolutionarily categorize species based on their sterol production. Use of bioinformatics has revealed that the green alga, C. reinhardtii is probably producing sterols using a pathway very similar to that of higher plants. The Chlamydomonas genome …

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Marsh Vulnerability To Sea-Level Rise, R W. Parkinson, C Craft, R D. Delaune, J F. Donoghue, R W. Parkinson, J F. Meeder, J Morris, R. Eugene Turner Jan 2017

Marsh Vulnerability To Sea-Level Rise, R W. Parkinson, C Craft, R D. Delaune, J F. Donoghue, R W. Parkinson, J F. Meeder, J Morris, R. Eugene Turner

Faculty Publications

No abstract provided.

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Trends In Summer Bottom-Water Temperatures On The Northern Gulf Of Mexico Continental Shelf From 1985 To 2015, R. Eugene Turner, N N. Rabalais, D Justic Jan 2017

Trends In Summer Bottom-Water Temperatures On The Northern Gulf Of Mexico Continental Shelf From 1985 To 2015, R. Eugene Turner, N N. Rabalais, D Justic

Faculty Publications

We quantified trends in the 1985 to 2015 summer bottom-water temperature on the northern Gulf of Mexico (nGOM) continental shelf for data collected at 88 stations with depths ranging from 3 to 63 m. The analysis was supplemented with monthly data collected from 1963 to 1965 in the same area. The seasonal summer peak in average bottom-water temperature varied concurrently with air temperature, but with a 2- to 5-month lag. The summer bottom-water temperature declined gradually with depth from 30 degrees C at stations closest to the shore, to 20 degrees C at the offshore edge of the study area, …

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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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Smaller Size-At-Age Menhaden With Coastal Warming And Fishing Intensity, R. Eugene Turner Jan 2017

Smaller Size-At-Age Menhaden With Coastal Warming And Fishing Intensity, R. Eugene Turner

Faculty Publications

The size-at-age of one million Brevoortia tyrannus and B. patronus, harvested from Maine to Texas over 65 years, were analysed to determine if there was evidence of changes consistent with the well documented temperature size rules. The average annual weight and length for age 3-, 4- and 5-year-old fish declined on both the Atlantic and Gulf of Mexico (GOM) coasts. For example, the average size of a 4-year-old fish captured in 2010 from the Atlantic and GOM, relative to an average 4-year-old fish captured in 1987, is 15 per cent and 11 per cent lighter, respectively. Small changes in the …

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The Cyst-Theca Relationship Of The Dinoflagellate Cyst Trinovantedinium Pallidifulvum, With Erection Of Protoperidinium Lousianensis Sp Nov And Their Phylogenetic Position Within The Conica Group, Kenneth Mertens, Haifang Gu, Yoshihito Takano, Andrea M. Price, Vera Pospelova, Kara Bogus, Gerard J. M. Versteegh, Fabienne Marret, R. Eugene Turner, Nancy N. Rabalais, Kazumi Matsuoka Jan 2017

The Cyst-Theca Relationship Of The Dinoflagellate Cyst Trinovantedinium Pallidifulvum, With Erection Of Protoperidinium Lousianensis Sp Nov And Their Phylogenetic Position Within The Conica Group, Kenneth Mertens, Haifang Gu, Yoshihito Takano, Andrea M. Price, Vera Pospelova, Kara Bogus, Gerard J. M. Versteegh, Fabienne Marret, R. Eugene Turner, Nancy N. Rabalais, Kazumi Matsuoka

Faculty Publications

We establish the cyst-theca relationship of the dinoflagellate cyst species Trinovantedinium pallidifulvum Matsuoka 1987 based on germination experiments of specimens isolated from the Gulf of Mexico. We show that the motile stage is a new species, designated as Protoperidinium louisianensis. We also determine its phylogenetic position based on single-cell polymerase chain reaction (PCR) of a single cell germinated from the Gulf of Mexico cysts. To further refine the phylogeny, we determined the large subunit (LSU) sequence through single-cell PCR of the cyst Selenopemphix undulata isolated from Brentwood Bay (Saanich Inlet, BC, Canada). The phylogeny shows that P. louisianensis is closest …

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Surface Gradients In Dissolved Organic Matter Absorption And Fluorescence Properties Along The New Zealand Sector Of The Southern Ocean, E.J. D'Sa, H.-C. Kim Jan 2017

Surface Gradients In Dissolved Organic Matter Absorption And Fluorescence Properties Along The New Zealand Sector Of The Southern Ocean, E.J. D'Sa, H.-C. Kim

Faculty Publications

No abstract provided.

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Assessing Chromophoric Dissolved Organic Matter (Cdom) Distribution, Stocks, And Fluxes In Apalachicola Bay Using Combined Field, Viirs Ocean Color, And Model Observations, I.D. Joshi, E.J. D'Sa, C.L. Osburn, T.S. Bianchi, D.S. Ko, D. Oviedo-Vargas, A.R. Arellano, N.D. Ward Jan 2017

Assessing Chromophoric Dissolved Organic Matter (Cdom) Distribution, Stocks, And Fluxes In Apalachicola Bay Using Combined Field, Viirs Ocean Color, And Model Observations, I.D. Joshi, E.J. D'Sa, C.L. Osburn, T.S. Bianchi, D.S. Ko, D. Oviedo-Vargas, A.R. Arellano, N.D. Ward

Faculty Publications

No abstract provided.

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Annual Changes In Seasonal Riverwater Temperatures In The Eastern And Western United States, Tyler Wagner, Stephen R. Midway, Joanna B. Whittier, Jefferson T. De Weber, Craig P. Paukert Jan 2017

Annual Changes In Seasonal Riverwater Temperatures In The Eastern And Western United States, Tyler Wagner, Stephen R. Midway, Joanna B. Whittier, Jefferson T. De Weber, Craig P. Paukert

Faculty Publications

Changes in river water temperatures are anticipated to have direct effects on thermal habitat and fish population vital rates, and therefore, understanding temporal trends in water temperatures may be necessary for predicting changes in thermal habitat and how species might respond to such changes. However, many investigations into trends in water temperatures use regression methods that assume long-term monotonic changes in temperature, when in fact changes are likely to be nonmonotonic. Therefore, our objective was to highlight the need and provide an example of an analytical method to better quantify the short-term, nonmonotonic temporal changes in thermal habitat that are …

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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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