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https://www.readbyqxmd.com/read/28231613/genetic-determinism-vs-phenotypic-plasticity-in-protist-morphology
#1
Matthieu Mulot, Katarzyna Marcisz, Lara Grandgirard, Enrique Lara, Anush Kosakyan, Bjorn J M Robroek, Mariusz Lamentowicz, Richard J Payne, Edward A D Mitchell
Untangling the relationships between morphology and phylogeny is key to building a reliable taxonomy, but is especially challenging for protists, where the existence of cryptic or pseudocryptic species makes finding relevant discriminant traits difficult. Here we use Hyalosphenia papilio (a testate amoeba) as a model species to investigate the contribution of phylogeny and phenotypic plasticity in its morphology. We study the response of Hyalosphenia papilio morphology (shape and pores number) to environmental variables in 1) a manipulative experiment with controlled conditions (water level), 2) an observational study of a withinsite natural ecological gradient (water level), and 3) an observational study across 37 European peatlands (climate)...
February 23, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28231485/the-importance-of-teacher-support-differential-impacts-by-gender-and-sexuality
#2
Adrienne B Dessel, Alex Kulick, Laura J Wernick, Daniel Sullivan
Teachers play an important role in shaping the experiences of high school students with regard to patterns of heteronormativity and binary gender norms, particularly for lesbian, gay, bisexual, transgender, and questioning (LGBTQ) students. A climate survey of high school students (n = 953) in the United States examined the association between students' well-being and their relationships with teachers. The sample was majority white (65.8%) and multiracial (14.1%). Cisgender (cis)-girls (49.6%), cis-boys (41...
February 20, 2017: Journal of Adolescence
https://www.readbyqxmd.com/read/28231329/changes-in-field-workability-and-drought-risk-from-projected-climate-change-drive-spatially-variable-risks-in-illinois-cropping-systems
#3
Bradley J Tomasek, Martin M Williams, Adam S Davis
As weather patterns become more volatile and extreme, risks introduced by weather variability will become more critical to agricultural production. The availability of days suitable for field work is driven by soil temperature and moisture, both of which may be altered by climate change. We projected changes in Illinois season length, spring field workability, and summer drought risk under three different emissions scenarios (B1, A1B, and A2) down to the crop district scale. Across all scenarios, thermal time units increased in parallel with a longer frost-free season...
2017: PloS One
https://www.readbyqxmd.com/read/28231316/a-balanced-solution-to-the-cumulative-threat-of-industrialized-wind-farm-development-on-cinereous-vultures-aegypius-monachus-in-south-eastern-europe
#4
Dimitris P Vasilakis, D Philip Whitfield, Vassiliki Kati
Wind farm development can combat climate change but may also threaten bird populations' persistence through collision with wind turbine blades if such development is improperly planned strategically and cumulatively. Such improper planning may often occur. Numerous wind farms are planned in a region hosting the only cinereous vulture population in south-eastern Europe. We combined range use modelling and a Collision Risk Model (CRM) to predict the cumulative collision mortality for cinereous vulture under all operating and proposed wind farms...
2017: PloS One
https://www.readbyqxmd.com/read/28231259/impact-of-seasonality-and-air-pollutants-on-carotid-femoral-pulse-wave-velocity-and-wave-reflection-in-hypertensive-patients
#5
Marina Di Pilla, Rosa Maria Bruno, Francesco Stea, Luciano Massetti, Stefano Taddei, Lorenzo Ghiadoni, Pietro Amedeo Modesti
OBJECTIVE: The effects of seasonality on blood pressure (BP) and cardiovascular (CV) events are well established, while the influence of seasonality and other environmental factors on arterial stiffness and wave reflection has never been analyzed. This study evaluated whether seasonality (daily number of hours of light) and acute variations in outdoor temperature and air pollutants may affect carotid-femoral pulse wave velocity (PWV) and pressure augmentation. DESIGN AND METHOD: 731 hypertensive patients (30-88 years, 417 treated) were enrolled in a cross-sectional study during a 5-year period...
2017: PloS One
https://www.readbyqxmd.com/read/28231256/advancing-the-match-mismatch-framework-for-large-herbivores-in-the-arctic-evaluating-the-evidence-for-a-trophic-mismatch-in-caribou
#6
David Gustine, Perry Barboza, Layne Adams, Brad Griffith, Raymond Cameron, Kenneth Whitten
Climate-induced shifts in plant phenology may adversely affect animals that cannot or do not shift the timing of their reproductive cycle. The realized effect of potential trophic "mismatches" between a consumer and its food varies with the degree to which species rely on dietary income and stored capital. Large Arctic herbivores rely heavily on maternal capital to reproduce and give birth near the onset of the growing season but are they vulnerable to trophic mismatch? We evaluated the long-term changes in the temperatures and characteristics of the growing seasons (1970-2013), and compared growing conditions and dynamics of forage quality for caribou at peak parturition, peak lactation, and peak forage biomass, and plant senescence between two distinct time periods over 36 years (1977 and 2011-13)...
2017: PloS One
https://www.readbyqxmd.com/read/28231177/the-goal-of-adequate-nutrition-can-it-be-made-affordable-sustainable-and-universal
#7
REVIEW
Ian McFarlane
Until about 1900, large proportions of the world population endured hunger and poverty. The 20th century saw world population increase from 1.6 to 6.1 billion, accompanied and to some extent made possible by rapid improvements in health standards and food supply, with associated advances in agricultural and nutrition sciences. In this paper, I use the application of linear programming (LP) in preparation of rations for farm animals to illustrate a method of calculating the lowest cost of a human diet selected from locally available food items, constrained to provide recommended levels of food energy and nutrients; then, to find a realistic minimum cost, I apply the further constraint that the main sources of food energy in the costed diet are weighted in proportion to the actual reported consumption of food items in that area...
November 30, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231147/applying-least-absolute-shrinkage-selection-operator-and-akaike-information-criterion-analysis-to-find-the-best-multiple-linear-regression-models-between-climate-indices-and-components-of-cow-s-milk
#8
Mohammad Reza Marami Milani, Andreas Hense, Elham Rahmani, Angelika Ploeger
This study focuses on multiple linear regression models relating six climate indices (temperature humidity THI, environmental stress ESI, equivalent temperature index ETI, heat load HLI, modified HLI (HLI new), and respiratory rate predictor RRP) with three main components of cow's milk (yield, fat, and protein) for cows in Iran. The least absolute shrinkage selection operator (LASSO) and the Akaike information criterion (AIC) techniques are applied to select the best model for milk predictands with the smallest number of climate predictors...
July 23, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230356/assessment-of-particle-pollution-from-jetliners-from-smoke-visibility-to-nanoparticle-counting
#9
Lukas Durdina, Benjamin T Brem, Ari Setyan, Frithjof Siegerist, Theo Rindlisbacher, Jing Wang
Aviation is a substantial and a fast growing emissions source. Besides greenhouse gases, aircraft engines emit black carbon (BC), a climate forcer and air pollutant. Aviation BC emissions have been regulated and estimated through exhaust smoke visibility (smoke number). Their impacts are poorly understood because emission inventories lack representative data. Here, we measured BC mass and number-based emissions of the most popular airliner's engines according to a new emission standard. We used a calibrated engine performance model to determine the emissions on the ground, at cruise altitude, and over entire flight missions...
February 23, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28230268/potential-climate-change-health-risks-from-increases-in-heat-waves-abnormal-birth-outcomes-and-adverse-maternal-health-conditions
#10
Gulcan Cil, Trudy Ann Cameron
We investigate the risks presented by heat waves for adverse health conditions for babies and expectant mothers when these mothers have been exposed to heat waves during gestation or during the period just prior to conception. Rather than just birth weight and gestational age, we focus on less common metrics such as abnormal conditions in the newborn (fetal distress, reliance on a ventilator, and meconium aspiration) and adverse health conditions in the mother (pregnancy-related hypertension, uterine bleeding during pregnancy, eclampsia, and incompetent cervix)...
February 23, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28230265/spatial-optimization-of-future-urban-development-with-regards-to-climate-risk-and-sustainability-objectives
#11
Daniel Caparros-Midwood, Stuart Barr, Richard Dawson
Future development in cities needs to manage increasing populations, climate-related risks, and sustainable development objectives such as reducing greenhouse gas emissions. Planners therefore face a challenge of multidimensional, spatial optimization in order to balance potential tradeoffs and maximize synergies between risks and other objectives. To address this, a spatial optimization framework has been developed. This uses a spatially implemented genetic algorithm to generate a set of Pareto-optimal results that provide planners with the best set of trade-off spatial plans for six risk and sustainability objectives: (i) minimize heat risks, (ii) minimize flooding risks, (iii) minimize transport travel costs to minimize associated emissions, (iv) maximize brownfield development, (v) minimize urban sprawl, and (vi) prevent development of greenspace...
February 23, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28230127/theory-of-chaotic-orbital-variations-confirmed-by-cretaceous-geological-evidence
#12
Chao Ma, Stephen R Meyers, Bradley B Sageman
Variations in the Earth's orbit and spin vector are a primary control on insolation and climate; their recognition in the geological record has revolutionized our understanding of palaeoclimate dynamics, and has catalysed improvements in the accuracy and precision of the geological timescale. Yet the secular evolution of the planetary orbits beyond 50 million years ago remains highly uncertain, and the chaotic dynamical nature of the Solar System predicted by theoretical models has yet to be rigorously confirmed by well constrained (radioisotopically calibrated and anchored) geological data...
February 22, 2017: Nature
https://www.readbyqxmd.com/read/28230120/climate-science-predictable-ice-ages-on-a-chaotic-planet
#13
Didier Paillard
No abstract text is available yet for this article.
February 22, 2017: Nature
https://www.readbyqxmd.com/read/28230079/organic-pollution-of-rivers-combined-threats-of-urbanization-livestock-farming-and-global-climate-change
#14
Yingrong Wen, Gerrit Schoups, Nick van de Giesen
Organic pollution of rivers by wastewater discharge from human activities negatively impacts people and ecosystems. Without treatment, pollution control relies on a combination of natural degradation and dilution by natural runoff to reduce downstream effects. We quantify here for the first time the global sanitation crisis through its impact on organic river pollution from the threats of (1) increasing wastewater discharge due to urbanization and intensification of livestock farming, and (2) reductions in river dilution capacity due to climate change and water extractions...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230069/consistent-role-of-quaternary-climate-change-in-shaping-current-plant-functional-diversity-patterns-across-european-plant-orders
#15
Alejandro Ordonez, Jens-Christian Svenning
Current and historical environmental conditions are known to determine jointly contemporary species distributions and richness patterns. However, whether historical dynamics in species distributions and richness translate to functional diversity patterns remains, for the most part, unknown. The geographic patterns of plant functional space size (richness) and packing (dispersion) for six widely distributed orders of European angiosperms were estimated using atlas distribution data and trait information. Then the relative importance of late-Quaternary glacial-interglacial climate change and contemporary environmental factors (climate, productivity, and topography) as determinants of functional diversity of evaluated orders was assesed...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230049/broad-scale-lake-expansion-and-flooding-inundates-essential-wood-bison-habitat
#16
Jennifer B Korosi, Joshua R Thienpont, Michael F J Pisaric, Peter deMontigny, Joelle T Perreault, Jamylynn McDonald, Myrna J Simpson, Terry Armstrong, Steven V Kokelj, John P Smol, Jules M Blais
Understanding the interaction between the response of a complex ecosystem to climate change and the protection of vulnerable wildlife species is essential for conservation efforts. In the Northwest Territories (Canada), the recent movement of the Mackenzie wood bison herd (Bison bison athabascae) out of their designated territory has been postulated as a response to the loss of essential habitat following regional lake expansion. We show that the proportion of this landscape occupied by water doubled since 1986 and the timing of lake expansion corresponds to bison movements out of the Mackenzie Bison Sanctuary...
February 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28229837/-professional-satisfaction-within-family-health-units-of-central-region
#17
Rui Passadouro, Pedro Lopes Ferreira
INTRODUCTION: Job satisfaction, as an organizational climate indicator, is a complex and subjective phenomenon. It is prone to individual variation, social settings and suitable to multiple explanatory theories. It can impact productivity and absenteeism, predict well-being, and it is associated with mental health, self-esteem and perception of physical health. It is comprised as one of the National Health Service evaluation criteria. This study aimed to assess the level of job satisfaction in family health units of Central Region of the country...
November 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28229248/promoting-social-nurturance-and-positive-social-environments-to-reduce-obesity-in-high-risk-youth
#18
REVIEW
Dawn K Wilson, Allison M Sweeney, Heather Kitzman-Ulrich, Haylee Gause, Sara M St George
Nurturing environments within the context of families, schools, and communities all play an important role in enhancing youth's behavioral choices and health outcomes. The increasing prevalence rates of obesity among youth, especially among low income and ethnic minorities, highlight the need to develop effective and innovative intervention approaches that promote positive supportive environments across different contexts for at-risk youth. We propose that the integration of Social Cognitive Theory, Family Systems Theory, and Self-Determination Theory offers a useful framework for understanding how individual, family, and social-environmental-level factors contribute to the development of nurturing environments...
February 22, 2017: Clinical Child and Family Psychology Review
https://www.readbyqxmd.com/read/28229043/detection-and-molecular-characterization-of-the-mosquito-borne-filarial-nematode-setaria-tundra-in-danish-roe-deer-capreolus-capreolus
#19
Heidi Larsen Enemark, Antti Oksanen, Mariann Chriél, Jakob le Fèvre Harslund, Ian David Woolsey, Mohammad Nafi Solaiman Al-Sabi
Setaria tundra is a mosquito-borne filarial nematode of cervids in Europe. It has recently been associated with an emerging epidemic disease causing severe morbidity and mortality in reindeer and moose in Finland. Here, we present the first report of S. tundra in six roe deer (Capreolus capreolus) collected between October 2010 and March 2014 in Denmark. The deer originated from various localities across the country: the eastern part of the Jutland peninsular and four locations on the island Zealand. With the exception of one deer, with parasites residing in a transparent cyst just under the liver capsule, worms (ranging from 2 to >20/deer) were found free in the peritoneal cavity...
April 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28228769/toward-an-evolved-concept-of-landrace
#20
Francesc Casañas, Joan Simó, Joan Casals, Jaime Prohens
The term "landrace" has generally been defined as a cultivated, genetically heterogeneous variety that has evolved in a certain ecogeographical area and is therefore adapted to the edaphic and climatic conditions and to its traditional management and uses. Despite being considered by many to be inalterable, landraces have been and are in a constant state of evolution as a result of natural and artificial selection. Many landraces have disappeared from cultivation but are preserved in gene banks. Using modern selection and breeding technology tools to shape these preserved landraces together with the ones that are still cultivated is a further step in their evolution in order to preserve their agricultural significance...
2017: Frontiers in Plant Science
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