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https://www.readbyqxmd.com/read/28335455/viral-protein-kinetics-of-piscine-orthoreovirus-infection-in-atlantic-salmon-blood-cells
#1
Hanne Merethe Haatveit, Øystein Wessel, Turhan Markussen, Morten Lund, Bernd Thiede, Ingvild Berg Nyman, Stine Braaen, Maria Krudtaa Dahle, Espen Rimstad
Piscine orthoreovirus (PRV) is ubiquitous in farmed Atlantic salmon (Salmo salar) and the cause of heart and skeletal muscle inflammation. Erythrocytes are important target cells for PRV. We have investigated the kinetics of PRV infection in salmon blood cells. The findings indicate that PRV causes an acute infection of blood cells lasting 1-2 weeks, before it subsides into persistence. A high production of viral proteins occurred initially in the acute phase which significantly correlated with antiviral gene transcription...
March 18, 2017: Viruses
https://www.readbyqxmd.com/read/28334171/brown-marmorated-stink-bug-hemiptera-pentatomidae-infestations-in-tree-borders-and-subsequent-patterns-of-abundance-in-soybean-fields
#2
B L Aigner, T P Kuhar, D A Herbert, C C Brewster, J W Hogue, J D Aigner
The invasive brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), is an important pest of soybean (Glycine max L. Merr.) in the Mid-Atlantic United States. In order to assess the influence of nonmanaged wooded borders on H. halys infestation patterns in soybean, 12 soybean fields in Orange and Madison Counties, VA, were sampled each week from July to October in 2013 or 2014 for H. halys. At each location, five 2-min visual counts of H. halys life stages were made on tree of heaven (Ailanthus altissima Mill...
March 3, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334155/genetic-diversity-of-symbiotic-paraburkholderia-species-isolated-from-nodules-of-mimosa-pudica-l-and-phaseolus-vulgaris-l-grown-in-soils-of-the-brazilian-atlantic-forest-mata-atl%C3%A3-ntica
#3
Rebeca Fuzinatto Dall Agnol, Caroline Bournaud, Sérgio Miana de Faria, Gilles Béna, Lionel Moulin, Mariangela Hungria
Some species of the genus Paraburkholderia that are able to nodulate and fix nitrogen in symbiosis with legumes are called β-rhizobia and represent a group of ecological and biotechnological importance. We used Mimosa pudica and Phaseolus vulgaris to trap 427 rhizobial isolates from rhizospheric soil of Mimoseae trees in the Brazilian Atlantic Forest. Eighty-four representative strains were selected according to the 16S rRNA haplotypes and taxonomically characterized using a concatenated 16S rRNA-recA phylogeny...
February 23, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28334073/do-distinct-biomes-influence-the-cuticular-chemical-profile-in-orchid-bees
#4
A B Santos, F S Nascimento
Cuticular chemical profiles of Euglossa cordata L. males were analyzed to test whether ecological predictors affect their composition and relative proportion. Males were collected in areas of Caatinga and Atlantic Forest from Brazil during two distinct seasonal periods. We found 48 compounds from the cuticular extracts of males, which consisted of hydrocarbons (71.39%), acetates (16.79%), esters (10.5%), alcohols and others (1.31%). We verified that when specimens were separated between biomes, they did not show a qualitative differentiation, but a small quantitative variation of compounds was found between some alkanes...
February 17, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28334046/enhancing-sampling-design-in-mist-net-bat-surveys-by-accounting-for-sample-size-optimization
#5
Leonardo Carreira Trevelin, Roberto Leonan Morim Novaes, Paul François Colas-Rosas, Thayse Cristhina Melo Benathar, Carlos A Peres
The advantages of mist-netting, the main technique used in Neotropical bat community studies to date, include logistical implementation, standardization and sampling representativeness. Nonetheless, study designs still have to deal with issues of detectability related to how different species behave and use the environment. Yet there is considerable sampling heterogeneity across available studies in the literature. Here, we approach the problem of sample size optimization. We evaluated the common sense hypothesis that the first six hours comprise the period of peak night activity for several species, thereby resulting in a representative sample for the whole night...
2017: PloS One
https://www.readbyqxmd.com/read/28334012/challenges-of-developing-a-cardiovascular-risk-calculator-for-patients-with-rheumatoid-arthritis
#6
Cynthia S Crowson, Silvia Rollefstad, George D Kitas, Piet L C M van Riel, Sherine E Gabriel, Anne Grete Semb
OBJECTIVE: Cardiovascular disease (CVD) risk calculators designed for use in the general population do not accurately predict the risk of CVD among patients with rheumatoid arthritis (RA), who are at increased risk of CVD. The process of developing risk prediction models involves numerous issues. Our goal was to develop a CVD risk calculator for patients with RA. METHODS: Thirteen cohorts of patients with RA originating from 10 different countries (UK, Norway, Netherlands, USA, Sweden, Greece, South Africa, Spain, Canada and Mexico) were combined...
2017: PloS One
https://www.readbyqxmd.com/read/28333937/variability-in-age-and-size-at-maturation-reproductive-longevity-and-long-term-growth-dynamics-for-kemp-s-ridley-sea-turtles-in-the-gulf-of-mexico
#7
Larisa Avens, Lisa R Goshe, Lewis Coggins, Donna J Shaver, Ben Higgins, Andre M Landry, Rhonda Bailey
Effective management of protected sea turtle populations requires knowledge not only of mean values for demographic and life-history parameters, but also temporal and spatial trends, variability, and underlying causes. For endangered Kemp's ridley sea turtles (Lepidochelys kempii), the need for baseline information of this type has been emphasized during attempts to understand causes underlying the recent truncation in the recovery trajectory for nesting females. To provide insight into variability in age and size at sexual maturation (ASM and SSM) and long-term growth patterns likely to influence population trends, we conducted skeletochronological analysis of humerus bones from 333 Kemp's ridleys stranded throughout the Gulf of Mexico (GOM) from 1993 to 2010...
2017: PloS One
https://www.readbyqxmd.com/read/28333164/the-theory-of-parallel-climate-realizations-as-a-new-framework-for-teleconnection-analysis
#8
Mátyás Herein, Gábor Drótos, Tímea Haszpra, János Márfy, Tamás Tél
Teleconnections are striking features of the Earth climate system which appear as statistically correlated climate-related patterns between remote geographical regions of the globe. In a changing climate, however, the strength of teleconnections might change, and an appropriate characterization of these correlations and their change (more appropriate than detrending the time series) is lacking in the literature. Here we present a novel approach, based on the theory of snapshot attractors, corresponding in our context to studying parallel climate realizations...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331585/phylogenetics-and-biogeography-of-the-two-wing-flyingfish-exocoetidae-exocoetus
#9
Eric A Lewallen, Andrew J Bohonak, Carolina A Bonin, Andre J van Wijnen, Robert L Pitman, Nathan R Lovejoy
Two-wing flyingfish (Exocoetus spp.) are widely distributed, epipelagic, mid-trophic organisms that feed on zooplankton and are preyed upon by numerous predators (e.g., tunas, dolphinfish, tropical seabirds), yet an understanding of their speciation and systematics is lacking. As a model of epipelagic fish speciation and to investigate mechanisms that increase biodiversity, we studied the phylogeny and biogeography of Exocoetus, a highly abundant holoepipelagic fish taxon of the tropical open ocean. Morphological and molecular data were used to evaluate the phylogenetic relationships, species boundaries, and biogeographic patterns of the five putative Exocoetus species...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28331390/cryptorchestia-ruffoi-sp-n-from-the-island-of-rhodes-greece-revealed-by-morphological-and-phylogenetic-analysis-crustacea-amphipoda-talitridae
#10
Domenico Davolos, Elvira De Matthaeis, Leonardo Latella, Ronald Vonk
A new Cryptorchestia species, Cryptorchestia ruffoi Latella & Vonk, sp. n. from the island of Rhodes in south-eastern Greece, can be distinguished on the basis of morphological and phylogenetic data. Morphological analysis and DNA sequencing of mitochondrial and nuclear protein-coding genes indicated that this species is related to Cryptorchestia cavimana (Cyprus) and Cryptorchestia garbinii (Mediterranean regions, with a recent northward expansion). Results supported a genetic separation between the Cryptorchestia species of the east Mediterranean regions and those of the northeast Atlantic volcanic islands examined in this study (Cryptorchestia canariensis, Cryptorchestia gomeri, Cryptorchestia guancha, and Cryptorchestia stocki from the Canary islands, Cryptorchestia monticola from Madeira, and Cryptorchestia chevreuxi from the Azores)...
2017: ZooKeys
https://www.readbyqxmd.com/read/28331047/ascension-island-a-survey-to-assess-the-presence-of-zika-virus-vectors
#11
G Bullivant, A F Martinou
BACKGROUND AND AIM: Following concerns regarding the spread of Zika virus, Joint Services Health Unit (Cyprus) were tasked to carry out a mosquito survey on the Ascension Island, South Atlantic. This was to determine if vectors of the virus such as Aedes aegypti and Aedes albopictus were introduced and established on the Island. METHODS: An extensive survey of residential areas and natural habitats was initiated in order to collect mosquito larvae and adults by methods such as larval sampling, adult trapping and human landing catches...
March 22, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28330696/corrigendum-to-assessing-trace-elements-in-striped-dolphins-from-the-strait-of-gibraltar-clues-to-link-the-bioaccumulation-in-the-westernmost-mediterranean-sea-area-and-nearest-atlantic-ocean-chemosphere-170-2017-41-50
#12
https://www.readbyqxmd.com/read/28328982/highlighting-of-quorum-sensing-lux-genes-and-their-expression-in-the-hydrothermal-vent-shrimp-rimicaris-exoculata-ectosymbiontic-community-possible-use-as-biogeographic-markers
#13
Simon Le Bloa, Lucile Durand, Valérie Cueff-Gauchard, Josiane Le Bars, Laure Taupin, Charlotte Marteau, Alexis Bazire, Marie-Anne Cambon-Bonavita
Rimicaris exoculata is a caridean shrimp that dominates the fauna at several hydrothermal vent sites of the Mid-Atlantic Ridge. It has two distinct and stable microbial communities. One of these epibiontic bacterial communities is located in the shrimp gut and has a distribution and role that are poorly understood. The second colonizes its enlarged gill chamber and is involved in host nutrition. It is eliminated after each molt, and has colonization processes reminiscent of those of a biofilm. The presence and expression of genes usually involved in quorum sensing (QS) were then studied...
2017: PloS One
https://www.readbyqxmd.com/read/28327635/the-evolutionary-and-phylogeographic-history-of-woolly-mammoths-a-comprehensive-mitogenomic-analysis
#14
Dan Chang, Michael Knapp, Jacob Enk, Sebastian Lippold, Martin Kircher, Adrian Lister, Ross D E MacPhee, Christopher Widga, Paul Czechowski, Robert Sommer, Emily Hodges, Nikolaus Stümpel, Ian Barnes, Love Dalén, Anatoly Derevianko, Mietje Germonpré, Alexandra Hillebrand-Voiculescu, Silviu Constantin, Tatyana Kuznetsova, Dick Mol, Thomas Rathgeber, Wilfried Rosendahl, Alexey N Tikhonov, Eske Willerslev, Greg Hannon, Carles Lalueza-Fox, Ulrich Joger, Hendrik Poinar, Michael Hofreiter, Beth Shapiro
Near the end of the Pleistocene epoch, populations of the woolly mammoth (Mammuthus primigenius) were distributed across parts of three continents, from western Europe and northern Asia through Beringia to the Atlantic seaboard of North America. Nonetheless, questions about the connectivity and temporal continuity of mammoth populations and species remain unanswered. We use a combination of targeted enrichment and high-throughput sequencing to assemble and interpret a data set of 143 mammoth mitochondrial genomes, sampled from fossils recovered from across their Holarctic range...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326539/isotopic-niche-partitioning-between-two-apex-predators-over-time
#15
M Drago, L Cardona, V Franco-Trecu, E A Crespo, D Vales, F Borella, L Zenteno, E M Gonzáles, P Inchausti
1.Stable isotope analyses have become an important tool in reconstructing diets, analyzing resource use patterns, elucidating trophic relations among predators and understanding the structure of food webs. 2.Here, we use stable carbon and nitrogen isotope ratios in bone collagen to reconstruct and compare the isotopic niches of adult South American fur seals (Arctocephalus australis; n = 86) and sea lions (Otaria flavescens; n = 49) -two otariid species with marked morphological differences- in the Río de la Plata estuary (Argentina - Uruguay) and the adjacent Atlantic Ocean during the second half of the 20(th) century and the beginning of the 21(st) century...
March 22, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28325982/long-term-seasonal-dominance-of-the-wasp-trihapsis-polita-townes-hymenoptera-ichneumonidae-in-the-brazilian-atlantic-forest
#16
Bernardo F Santos, Alexandre P Aguiar, Anazélia M Tedesco, Julio C R Fontenelle
BACKGROUND: The temporal dynamics of insect populations in tropical environments is highly complex and poorly known. Long-term seasonality studies are scarce, and particularly so for ichneumonid wasps (Hymenoptera Ichneumonidae). This study represents an effort to elucidate aspects of seasonality and forest succession in the Brazilian Atlantic Forest. NEW INFORMATION: We report on the seasonal and successional dominance of the ichneumonid wasp Trihapsis polita (Cryptinae)...
2017: Biodiversity Data Journal
https://www.readbyqxmd.com/read/28325893/a-robust-empirical-seasonal-prediction-of-winter-nao-and-surface-climate
#17
L Wang, M Ting, P J Kushner
A key determinant of winter weather and climate in Europe and North America is the North Atlantic Oscillation (NAO), the dominant mode of atmospheric variability in the Atlantic domain. Skilful seasonal forecasting of the surface climate in both Europe and North America is reflected largely in how accurately models can predict the NAO. Most dynamical models, however, have limited skill in seasonal forecasts of the winter NAO. A new empirical model is proposed for the seasonal forecast of the winter NAO that exhibits higher skill than current dynamical models...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325830/into-africa-molecular-phylogenetics-and-historical-biogeography-of-sub-saharan-african-woodferns-dryopteris
#18
Emily B Sessa, Aino Juslén, Henry Väre, Sally M Chambers
PREMISE OF THE STUDY: Our goal was to infer the phylogenetic relationships and historical biogeography of the genus Dryopteris with a focus on taxa in sub-Saharan Africa and neighboring islands. In general, little is known about the relationships between African fern species and their congeners in other geographic regions, and our aim was to determine whether the sub-Saharan African species of Dryopteris are monophyletic and evolved within Africa or arrived there via repeated dispersals into Africa from other regions...
March 21, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28323468/potential-high-risk-areas-for-zika-virus-transmission-in-the-contiguous-united-states
#19
Enbal Shacham, Erik J Nelson, Daniel F Hoft, Mario Schootman, Alexander Garza
OBJECTIVES: To understand where transmission of Zika virus has the highest likelihood to occur in the contiguous United States with regard to its transmission both sexually and via Aedes aegypti mosquito bites. METHODS: We evaluated the 2 routes of transmission risk with predictors of sexually transmitted infections (percentage women of childbearing age, birthrate, gonorrhea and chlamydia rates, concentrated disadvantage) as a surrogate for unprotected sexual activity and the demographic distribution of the A...
March 21, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28323277/an-alternative-polysaccharide-uptake-mechanism-of-marine-bacteria
#20
Greta Reintjes, Carol Arnosti, Bernhard M Fuchs, Rudolf Amann
Heterotrophic microbial communities process much of the carbon fixed by phytoplankton in the ocean, thus having a critical role in the global carbon cycle. A major fraction of the phytoplankton-derived substrates are high-molecular-weight (HMW) polysaccharides. For bacterial uptake, these substrates must initially be hydrolysed to smaller sizes by extracellular enzymes. We investigated polysaccharide hydrolysis by microbial communities during a transect of the Atlantic Ocean, and serendipitously discovered-using super-resolution structured illumination microscopy-that up to 26% of total cells showed uptake of fluorescently labelled polysaccharides (FLA-PS)...
March 21, 2017: ISME Journal
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