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https://www.readbyqxmd.com/read/29346653/emergence-of-acute-subacute-infant-juvenile-paracoccidioidomycosis-in-northeast-argentina-effect-of-climatic-and-anthropogenic-changes
#1
Gustavo Giusiano, Clarisa Aguirre, Claudia Vratnica, Florencia Rojas, Teresa Corallo, María Emilia Cattana, Mariana Fernández, Javier Mussin, María de Los Angeles Sosa
Argentina has two endemic areas of paracoccidioidomycosis (PCM). Bordering Paraguay and Brazil, Northeast Argentina (NEA) comprises the area with the highest incidence where the chronic adult clinical form has historically been reported. Juvenile form in children and adolescents is rare in this area since only one case was reported in the last 10 years. Despite this, between 2010 and 2012, several cases of acute/subacute clinical forms in children aged 10 to 16 (median 12) were detected. In the last decade, the NEA region has been exposed to ecological variations as consequences of certain climatic and anthropogenic changes, including El Niño-Southern Oscillation phenomenon during 2009, and deforestation...
January 13, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29345031/amazon-droughts-and-forest-responses-largely-reduced-forest-photosynthesis-but-slightly-increased-canopy-greenness-during-the-extreme-drought-of-2015-2016
#2
Jia Yang, Hanqin Tian, Shufen Pan, Guangsheng Chen, Bowen Zhang, Shree Dangal
Amazon droughts have major impacts on regional ecosystem functioning as well as global carbon cycling. The severe dry-season droughts in 2005 and 2010, driven by Atlantic sea surface temperature (SST) anomaly, have been widely investigated in terms of drought severity and impacts on ecosystems. Although the influence of Pacific SST anomaly on wet-season precipitation has been well recognized, it remains uncertain to what extent the droughts driven by Pacific SST anomaly could affect forest greenness and photosynthesis in the Amazon...
January 18, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29342148/a-strong-summer-phytoplankton-bloom-southeast-of-vietnam-in-2007-a-transitional-year-from-el-ni%C3%A3-o-to-la-ni%C3%A3-a
#3
Hui Zhao, Jian Zhao, Xingli Sun, Fajin Chen, Guoqi Han
Summer upwelling occurs frequently off the southeast Vietnam coast in the western South China Sea (SCS), where summer phytoplankton blooms generally appear during June-August. In this study, we investigate inter-annual variation of Ekman pumping and offshore transport, and its modulation on summer blooms southeast of Vietnam. The results indicate that there are low intensities of summer blooms in El Niño years, under higher sea surface temperatures (SST) and weaker winds. However, a different pattern of monthly chlorophyll a (Chl-a) blooms occurred in summer of 2007, a transitional stage from El Niño to La Niña, with weak (strong) wind and high (low) SST before (after) early July...
2018: PloS One
https://www.readbyqxmd.com/read/29339487/uncovering-the-role-of-the-east-asian-jet-stream-and-heterogeneities-in-atmospheric-rivers-affecting-the-western-united-states
#4
Wei Zhang, Gabriele Villarini
Atmospheric rivers (ARs) exert major socioeconomic repercussions along the US West Coast by inducing heavy rainfall, flooding, strong winds, and storm surge. Despite the significant societal and economic repercussions of these storms, our understanding of the physical drivers responsible for their interannual variability is limited, with different climate modes identified as possible mechanisms. Here we show that the Pacific-Japan (PJ) teleconnections/patterns and the East Asian subtropical jet (EASJ) exhibit a strong linkage with the total frequency of ARs making landfall over the western United States, much stronger than the other potential climate modes previously considered...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29338001/modelling-the-large-scale-yellow-fever-outbreak-in-luanda-angola-and-the-impact-of-vaccination
#5
Shi Zhao, Lewi Stone, Daozhou Gao, Daihai He
BACKGROUND: Yellow fever (YF), transmitted via bites of infected mosquitoes, is a life-threatening viral disease endemic to tropical and subtropical regions of Africa and South America. YF has largely been controlled by widespread national vaccination campaigns. Nevertheless, between December 2015 and August 2016, YF resurged in Angola, quickly spread and becoming the largest YF outbreak for the last 30 years. Recently, YF resurged again in Brazil (December 2016). Thus, there is an urgent need to gain better understanding of the transmission pattern of YF...
January 16, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29335426/author-correction-intensification-of-terrestrial-carbon-cycle-related-to-el-ni%C3%A3-o-southern-oscillation-under-greenhouse-warming
#6
Jin-Soo Kim, Jong-Seong Kug, Su-Jong Jeong
In the original version of this Article, the affiliation for Su-Jon Jeong was incorrectly given as 'Southern University of Science and Technology of China (SUSTECH)', instead of 'Southern University of Science and Technology (SUSTECH)'. This has now been corrected in both the PDF and HTML versions of the Article.
January 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29333198/response-of-pacific-sector-antarctic-ice-shelves-to-the-el-ni%C3%A3-o-southern-oscillation
#7
F S Paolo, L Padman, H A Fricker, S Adusumilli, S Howard, M R Siegfried
Satellite observations over the past two decades have revealed increasing loss of grounded ice in West Antarctica, associated with floating ice shelves that have been thinning. Thinning reduces an ice-shelf's ability to restrain grounded-ice discharge, yet our understanding of the climate processes that drive mass changes is limited. Here, we use ice-shelf height data from four satellite altimeter missions (1994-2017) to show a direct link between ice-shelf-height variability in the Antarctic Pacific sector and changes in regional atmospheric circulation driven by the El Niño-Southern Oscillation...
January 2018: Nature Geoscience
https://www.readbyqxmd.com/read/29330667/diversity-and-phenology-of-wild-bees-in-a-highly-disturbed-tropical-dry-forest-desierto-de-la-tatacoa-huila-colombia
#8
C A Poveda-Coronel, D Riaño-Jiménez, J R Cure
Colombian tropical dry forest is considered the most endangered tropical biome due to anthropic activities. Desierto de la Tatacoa (DsT) is an example of high disturbed tropical dry forest which still maintains a high biodiversity. The objective of the study was to record the diversity and phenology of wild bees in this place by monthly sampling between December 2014 and December 2016 in a 9-km2 area. During the study, there was a prolonged El Niño-Southern Oscillation period. Bees were collected by entomological nets, malaise traps, eugenol scent trapping, and nest traps...
January 12, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29324791/sediment-biomarkers-elucidate-the-holocene-ontogeny-of-a-shallow-lake
#9
T E Arnold, W F Kenney, J H Curtis, T S Bianchi, M Brenner
We carried out geochemical analyses on a sediment core from Lake Harris, Florida (USA) to identify sources of organic matter to the sediment throughout the Holocene, and relate changes in those sources to shifts in past climate and environmental conditions. We hypothesized that the sources of organic matter changed in response to regional hydrologic shifts following de-glaciation, and to human population expansion in the state during the 20th century. Hydroclimate shifts in Florida were related to: 1) a steady rise in relative sea level and the fresh water table that began in the early Holocene, 2) wetland formation and expansion ca...
2018: PloS One
https://www.readbyqxmd.com/read/29317672/quasi-asymmetric-response-of-the-indian-summer-monsoon-rainfall-to-opposite-phases-of-the-iod
#10
Swadhin K Behera, J V Ratnam
The El Niño/Southern Oscillation has been traditionally linked to the extremes in the Indian summer monsoon rainfall (ISMR) affecting more than a billion people in the region. This trans-oceanic influence is seen to be moderated by the Indian Ocean Dipole (IOD) phenomenon in recent decades. In the presence of a positive IOD (pIOD), the otherwise subdued ISMR in an El Niño year remains close to normal even in the face of record breaking El Niños. While this general influence of pIOD on ISMR is understood, the influence of negative IOD (nIOD) on ISMR is not yet recognized...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29306207/investigation-of-the-host-guest-complexation-between-4-sulfocalix-4-arene-and-nedaplatin-for-potential-use-in-drug-delivery
#11
Sherif Ashraf Fahmy, Fortuna Ponte, Mohamed K Abd El-Rahman, Nino Russo, Emilia Sicilia, Tamer Shoeib
No abstract text is available yet for this article.
December 27, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29302011/spatial-and-temporal-patterns-of-mass-bleaching-of-corals-in-the-anthropocene
#12
Terry P Hughes, Kristen D Anderson, Sean R Connolly, Scott F Heron, James T Kerry, Janice M Lough, Andrew H Baird, Julia K Baum, Michael L Berumen, Tom C Bridge, Danielle C Claar, C Mark Eakin, James P Gilmour, Nicholas A J Graham, Hugo Harrison, Jean-Paul A Hobbs, Andrew S Hoey, Mia Hoogenboom, Ryan J Lowe, Malcolm T McCulloch, John M Pandolfi, Morgan Pratchett, Verena Schoepf, Gergely Torda, Shaun K Wilson
Tropical reef systems are transitioning to a new era in which the interval between recurrent bouts of coral bleaching is too short for a full recovery of mature assemblages. We analyzed bleaching records at 100 globally distributed reef locations from 1980 to 2016. The median return time between pairs of severe bleaching events has diminished steadily since 1980 and is now only 6 years. As global warming has progressed, tropical sea surface temperatures are warmer now during current La Niña conditions than they were during El Niño events three decades ago...
January 5, 2018: Science
https://www.readbyqxmd.com/read/29299286/a-damped-precipitation-driven-bottom-up-model-for-deer-mouse-population-abundance-in-the-northwestern-united-states
#13
Irene L Gorosito, Richard J Douglass
Small-mammal population densities can be regulated by bottom-up (food availability) and top-down (predation) forces. In 1993, an El Niño Southern Oscillation event was followed by a cluster of human hantavirus with pulmonary syndrome in the southwestern United States. An upward trophic cascade hypothesis was proposed as an explanation for the outbreak: Increased plant productivity as a consequence of El Niño precipitations led to an unusual increase in distribution and abundance of deer mice (Peromyscus maniculatus; reservoir host of Sin Nombre virus)...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29298987/abrupt-transitions-in-time-series-with-uncertainties
#14
Bedartha Goswami, Niklas Boers, Aljoscha Rheinwalt, Norbert Marwan, Jobst Heitzig, Sebastian F M Breitenbach, Jürgen Kurths
Identifying abrupt transitions is a key question in various disciplines. Existing transition detection methods, however, do not rigorously account for time series uncertainties, often neglecting them altogether or assuming them to be independent and qualitatively similar. Here, we introduce a novel approach suited to handle uncertainties by representing the time series as a time-ordered sequence of probability density functions. We show how to detect abrupt transitions in such a sequence using the community structure of networks representing probabilities of recurrence...
January 3, 2018: Nature Communications
https://www.readbyqxmd.com/read/29275255/weather-variables-and-the-el-ni%C3%A3-o-southern-oscillation-may-drive-the-epidemics-of-dengue-in-guangdong-province-china
#15
Jianpeng Xiao, Tao Liu, Hualiang Lin, Guanghu Zhu, Weilin Zeng, Xing Li, Bing Zhang, Tie Song, Aiping Deng, Meng Zhang, Haojie Zhong, Shao Lin, Shannon Rutherford, Xiaojing Meng, Yonghui Zhang, Wenjun Ma
OBJECTIVE: To investigate the periodicity of dengue and the relationship between weather variables, El Niño Southern Oscillation (ENSO) and dengue incidence in Guangdong Province, China. METHODS: Guangdong monthly dengue incidence and weather data and El Niño index information for 1988 to 2015 were collected. Wavelet analysis was used to investigate the periodicity of dengue, and the coherence and time-lag phases between dengue and weather variables and ENSO. The Generalized Additive Model (GAM) approach was further employed to explore the dose-response relationship of those variables on dengue...
December 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29273762/analysis-of-enso-s-response-to-unforced-variability-and-anthropogenic-forcing-using-cesm
#16
Benjamin Vega-Westhoff, Ryan L Sriver
Understanding how the El Niño-Southern Oscillation (ENSO) may change with climate is a major challenge, given the internal variability of the system and relatively short observational record. Here we analyze the effect of coupled internal variability on changes in ENSO under anthropogenic global warming using the Community Earth System Model (CESM). We present results from a ~5000 year control run with constant pre-industrial conditions and a 50-member climate change ensemble experiment, consisting of historical hindcasts (1850-2005) and future projections to 2100 following representative concentration pathway 8...
December 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29260665/rodent-abundance-and-hantavirus-infection-in-protected-area-east-central-argentina
#17
Malena Maroli, María Victoria Vadell, Paula Padula, Isabel E Gómez Villafañe
We captured 3 hantavirus rodent hosts in Otamendi Natural Reserve, Argentina, during 2007-2012. Hantavirus antibodies were found only in Akodon azarae grass mice, mainly in males and old animals. Higher abundance of this species was associated with warm and rainy weather and high water levels, which peaked after a strong El Niño event.
January 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29259276/long-term-carbon-sink-in-borneo-s-forests-halted-by-drought-and-vulnerable-to-edge-effects
#18
Lan Qie, Simon L Lewis, Martin J P Sullivan, Gabriela Lopez-Gonzalez, Georgia C Pickavance, Terry Sunderland, Peter Ashton, Wannes Hubau, Kamariah Abu Salim, Shin-Ichiro Aiba, Lindsay F Banin, Nicholas Berry, Francis Q Brearley, David F R P Burslem, Martin Dančák, Stuart J Davies, Gabriella Fredriksson, Keith C Hamer, Radim Hédl, Lip Khoon Kho, Kanehiro Kitayama, Haruni Krisnawati, Stanislav Lhota, Yadvinder Malhi, Colin Maycock, Faizah Metali, Edi Mirmanto, Laszlo Nagy, Reuben Nilus, Robert Ong, Colin A Pendry, Axel Dalberg Poulsen, Richard B Primack, Ervan Rutishauser, Ismayadi Samsoedin, Bernaulus Saragih, Plinio Sist, J W Ferry Slik, Rahayu Sukmaria Sukri, Martin Svátek, Sylvester Tan, Aiyen Tjoa, Mark van Nieuwstadt, Ronald R E Vernimmen, Ishak Yassir, Petra Susan Kidd, Muhammad Fitriadi, Nur Khalish Hafizhah Ideris, Rafizah Mat Serudin, Layla Syaznie Abdullah Lim, Muhammad Shahruney Saparudin, Oliver L Phillips
Less than half of anthropogenic carbon dioxide emissions remain in the atmosphere. While carbon balance models imply large carbon uptake in tropical forests, direct on-the-ground observations are still lacking in Southeast Asia. Here, using long-term plot monitoring records of up to half a century, we find that intact forests in Borneo gained 0.43 Mg C ha-1 per year (95% CI 0.14-0.72, mean period 1988-2010) above-ground live biomass. These results closely match those from African and Amazonian plot networks, suggesting that the world's remaining intact tropical forests are now en masse out-of-equilibrium...
December 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/29238531/the-saturniidae-of-barro-colorado-island-panama-a-model-taxon-for-studying-the-long-term-effects-of-climate-change
#19
Yves Basset, Greg P A Lamarre, Tom Ratz, Simon T Segar, Thibaud Decaëns, Rodolphe Rougerie, Scott E Miller, Filonila Perez, Ricardo Bobadilla, Yacksecari Lopez, José Alejandro Ramirez, Annette Aiello, Héctor Barrios
We have little knowledge of the response of invertebrate assemblages to climate change in tropical ecosystems, and few studies have compiled long-term data on invertebrates from tropical rainforests. We provide an updated list of the 72 species of Saturniidae moths collected on Barro Colorado Island (BCI), Panama, during the period 1958-2016. This list will serve as baseline data for assessing long-term changes of saturniids on BCI in the future, as 81% of the species can be identified by their unique DNA Barcode Index Number, including four cryptic species not yet formally described...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29223897/agricultural-drought-prediction-using-climate-indices-based-on-support-vector-regression-in-xiangjiang-river-basin
#20
Ye Tian, Yue-Ping Xu, Guoqing Wang
Drought can have a substantial impact on the ecosystem and agriculture of the affected region and does harm to local economy. This study aims to analyze the relation between soil moisture and drought and predict agricultural drought in Xiangjiang River basin. The agriculture droughts are presented with the Precipitation-Evapotranspiration Index (SPEI). The Support Vector Regression (SVR) model incorporating climate indices is developed to predict the agricultural droughts. Analysis of climate forcing including El Niño Southern Oscillation and western Pacific subtropical high (WPSH) are carried out to select climate indices...
December 7, 2017: Science of the Total Environment
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