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https://www.readbyqxmd.com/read/28343340/a-lake-centric-geospatial-database-to-guide-research-and-inform-management-decisions-in-an-arctic-watershed-in-northern-alaska-experiencing-climate-and-land-use-changes
#1
Benjamin M Jones, Christopher D Arp, Matthew S Whitman, Debora Nigro, Ingmar Nitze, John Beaver, Anne Gädeke, Callie Zuck, Anna Liljedahl, Ronald Daanen, Eric Torvinen, Stacey Fritz, Guido Grosse
Lakes are dominant and diverse landscape features in the Arctic, but conventional land cover classification schemes typically map them as a single uniform class. Here, we present a detailed lake-centric geospatial database for an Arctic watershed in northern Alaska. We developed a GIS dataset consisting of 4362 lakes that provides information on lake morphometry, hydrologic connectivity, surface area dynamics, surrounding terrestrial ecotypes, and other important conditions describing Arctic lakes. Analyzing the geospatial database relative to fish and bird survey data shows relations to lake depth and hydrologic connectivity, which are being used to guide research and aid in the management of aquatic resources in the National Petroleum Reserve in Alaska...
March 25, 2017: Ambio
https://www.readbyqxmd.com/read/28343237/actogram-analysis-of-free-flying-migratory-birds-new-perspectives-based-on-acceleration-logging
#2
REVIEW
Johan Bäckman, Arne Andersson, Lykke Pedersen, Sissel Sjöberg, Anders P Tøttrup, Thomas Alerstam
The use of accelerometers has become an important part of biologging techniques for large-sized birds with accelerometer data providing information about flight mode, wing-beat pattern, behaviour and energy expenditure. Such data show that birds using much energy-saving soaring/gliding flight like frigatebirds and swifts can stay airborne without landing for several months. Successful accelerometer studies have recently been conducted also for free-flying small songbirds during their entire annual cycle. Here we review the principles and possibilities for accelerometer studies in bird migration...
March 25, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28342418/dynamics-of-runoff-and-sediment-trapping-performance-of-vegetative-filter-strips-run-on-experiments-and-modeling
#3
Daili Pan, Xiaodong Gao, Miles Dyck, Yaqian Song, Pute Wu, Xining Zhao
Vegetative filter strips (VFSs) are a labor-saving and cost-effective agricultural best management practice to trap water runoff and sediment from the source areas. They also provide forage and/or fuel and are therefore potentially profitable for land owners. VFSs are however a dynamic system: the runoff delivery ratio (RDR) and sediment delivery ratio (SDR) vary with growth stage and vegetation types. The impacts of vegetation characteristics as well as soil physical properties modified by vegetation growth, on the RDR and SDR of VFS were evaluated by a flume experiment...
March 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28340479/additive-effects-prevail-the-response-of-biota-to-multiple-stressors-in-an-intensively-monitored-watershed
#4
Alexander Gieswein, Daniel Hering, Christian K Feld
Freshwater ecosystems are impacted by a range of stressors arising from diverse human-caused land and water uses. Identifying the relative importance of single stressors and understanding how multiple stressors interact and jointly affect biology is crucial for River Basin Management. This study addressed multiple human-induced stressors and their effects on the aquatic flora and fauna based on data from standard WFD monitoring schemes. For altogether 1095 sites within a mountainous catchment, we used 12 stressor variables covering three different stressor groups: riparian land use, physical habitat quality and nutrient enrichment...
March 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28340089/how-embryophytic-is-the-biosynthesis-of-phenylpropanoids-and-their-derivatives-in-streptophyte-algae
#5
Jan de Vries, Sophie de Vries, Claudio H Slamovits, Laura E Rose, John M Archibald
The origin of land plants from algae is a long-standing question in evolutionary biology. It is becoming increasingly clear that many characters that were once assumed to be "embryophyte-specific" can in fact be found in their closest algal relatives, the streptophyte algae. One such case is the phenylpropanoid pathway. While biochemical data indicate that streptophyte algae harbor lignin-like components, the phenylpropanoid core pathway, which serves as the backbone of lignin biosynthesis, has been proposed to have arisen at the base of the land plants...
March 13, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339135/integrated-models-to-support-multiobjective-ecological-restoration-decisions
#6
Hannah Fraser, Libby Rumpff, Jian D L Yen, Doug Robinson, Brendan A Wintle
Many objectives motivate ecological restoration including improving vegetation condition, increasing the range and abundance of threatened species, and improving aggregate measures of biodiversity such as richness and diversity. While ecological models have been used to examine the outcomes of ecological restoration, there are few attempts to develop models to account for multiple, potentially competing objectives. We develop the first predictive model that integrates a vegetation-focused state-and-transition model with species distribution models for birds...
March 24, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28338896/rapid-evolution-of-microrna-loci-in-the-brown-algae
#7
J Mark Cock, Fuli Liu, Delin Duan, Simon Bourdareau, Agnieszka Lipinska, Susana M Coelho, James E Tarver
Stringent searches for microRNAs (miRNAs) have so far only identified these molecules in animals, land plants, chlorophyte green algae, slime molds and brown algae. The identification of miRNAs in brown algae was based on analysis of a single species, the filamentous brown alga Ectocarpus sp. Here we have used deep sequencing of small RNAs and a recently published genome sequence to identify miRNAs in a second brown alga, the kelp Saccharina japonica. S. japonica possesses a large number of miRNAs (117) and these miRNAs are highly diverse, falling into 98 different families...
March 3, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28338613/slum-upgrading-and-health-equity
#8
Jason Corburn, Alice Sverdlik
Informal settlement upgrading is widely recognized for enhancing shelter and promoting economic development, yet its potential to improve health equity is usually overlooked. Almost one in seven people on the planet are expected to reside in urban informal settlements, or slums, by 2030. Slum upgrading is the process of delivering place-based environmental and social improvements to the urban poor, including land tenure, housing, infrastructure, employment, health services and political and social inclusion...
March 24, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28338388/preferred-hip-strategy-during-landing-reduces-knee-abduction-moment-in-collegiate-female-soccer-players
#9
Anh-Dung Nguyen, Jeffrey B Taylor, Taylor G Wimbish, Jennifer L Keith, Kevin R Ford
CONTEXT: Hip focused interventions are aimed to decrease frontal plane knee loading related to anterior cruciate ligament (ACL) injuries. Whether a preferred hip landing strategy decreases frontal plane knee loading is unknown. OBJECTIVE: To determine if a preferred hip landing strategy during a drop vertical jump (DVJ) is utilized during a single leg landing (SLL) task and whether differences in frontal plane knee loading are consistent between a DVJ and a SLL task...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28338152/-development-and-future-of-minimally-invasive-surgery-in-western-china
#10
Peiwu Yu, Yingxue Hao
There are vast land and lots of people in western China, but the economy developing is relatively slow. However, the minimally invasive surgery was carried out firstly in China. Moreover, the type, number and difficulty of the minimally invasive surgery increased year by year. Especially, in the western area of China, Dr Zhou Zongguang, Yu Peiwu and Zheng Shuguo et al. have performed much pioneering work in laparoscopic surgery for rectal cancer, gastric cancer and laparoscopic liver resection. They led the standard development of minimally invasive in China...
March 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28337627/biological-impacts-of-local-vs-regional-land-use-on-a-small-tributary-of-the-seine-river-france-insights-from-a-food-web-approach-based-on-stable-isotopes
#11
Nicolas Hette-Tronquart, Thierry Oberdorff, Evelyne Tales, Amandine Zahm, Jérôme Belliard
As part of the landscape, streams are influenced by land use. Here, we contributed to the understanding of the biological impacts of land use on streams, investigating how landscape effects vary with spatial scales (local vs. regional). We adopted a food web approach integrating both biological structure and functioning, to focus on the overall effect of land use on stream biocœnosis. We selected 17 sites of a small tributary of the Seine River (France) for their contrasted land use, and conducted a natural experiment by sampling three organic matter sources, three macroinvertebrate taxa, and most of the fish community...
March 23, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28337590/acl-reconstructed-and-acl-deficient-individuals-show-differentiated-trunk-hip-and-knee-kinematics-during-vertical-hops-more-than-20%C3%A2-years-post-injury
#12
Jonas L Markström, Eva Tengman, Charlotte K Häger
PURPOSE: Little is known regarding movement strategies in the long term following injury of the anterior cruciate ligament (ACL), and even less about comparisons of reconstructed and deficient knees in relation to healthy controls. The present purpose was to compare trunk, hip, and knee kinematics during a one-leg vertical hop (VH) ~20 years post-ACL injury between persons treated with surgery and physiotherapy (ACLR), solely physiotherapy (ACLPT), and controls (CTRL). Between-leg kinematic differences within groups were also investigated...
March 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28337190/epidemiological-characteristics-and-environmental-risk-factors-of-severe-fever-with-thrombocytopenia-syndrome-in-hubei-province-china-from-2011-to-2016
#13
Tang Wang, Xin-Lou Li, Man Liu, Xiao-Jia Song, Hao Zhang, Yu-Bin Wang, Bao-Pin Tian, Xue-Sen Xing, Shi-Yue Li
Severe fever with thrombocytopenia syndrome (SFTS) is a tick-borne viral disease affecting hundreds of people in China each year. To better understand the epidemiological characteristics and environmental risk factors associated with the incidence of SFTS in Hubei Province, China, we conducted a retrospective epidemiological study and risk assessment of SFTS from 2011 to 2016. Although, the incidence and epidemic areas of SFTS are increasing, the fatality rate has decreased. Elderly farmers are the population most commonly infected with SFTS virus between May and July in the northeast Hubei Province, which seems to be consistent with local agricultural activities and the seasonal abundance of ticks...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28336259/the-role-of-pili-in-bacillus-cereus-intraocular-infection
#14
Michelle C Callegan, Salai Madhumathi Parkunan, C Blake Randall, Phillip S Coburn, Frederick C Miller, Austin L LaGrow, Roger A Astley, Craig Land, So-Young Oh, Olaf Schneewind
Bacterial endophthalmitis is a potentially blinding intraocular infection. The bacterium Bacillus cereus causes a devastating form of this disease which progresses rapidly, resulting in significant inflammation and loss of vision within a few days. The outer surface of B. cereus incites the intraocular inflammatory response, likely through interactions with innate immune receptors such as TLRs. This study analyzed the role of B. cereus pili, adhesion appendages located on the bacterial surface, in experimental endophthalmitis...
March 20, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28336209/transboundary-movement-of-marine-litter-in-an-estuarine-gradient-evaluating-sources-and-sinks-using-hydrodynamic-modelling-and-ground-truthing-estimates
#15
Allan Paul Krelling, Mihael Machado Souza, Allan Thomas Williams, Alexander Turra
Marine debris' transboundary nature and new strategies to identify sources and sinks in coastal areas were investigated along the Paranaguá estuarine gradient (southern Brazil), through integration of hydrodynamic modelling, ground truthing estimates and regressive vector analysis. The simulated release of virtual particles in different parts of the inner estuary suggests a residence time shorter than 5days before being exported through the estuary mouth (intermediate compartment) to the open ocean. Stranded litter supported this pathway, with beaches in the internal compartment presenting proportionally more items from domestic sources, while fragmented items with unknown sources were proportionally more abundant in the oceanic beaches...
March 20, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28336150/effects-of-foot-rotation-positions-on-knee-valgus-during-single-leg-drop-landing-implications-for-acl-injury-risk-reduction
#16
P S P Teng, P W Kong, K F Leong
BACKGROUND: Non-contact anterior cruciate ligament (ACL) injuries commonly occur when athletes land in high risk positions such as knee valgus. The position of the foot at landing may influence the transmission of forces from the ankle to the knee. Using an experimental approach to manipulate foot rotation positions, this study aimed to provide new insights on how knee valgus during single-leg landing may be influenced by foot positions. METHODS: Eleven male recreational basketball players performed single-leg drop landings from a 30-cm high platform in three foot rotation positions (toe-in, toe-forward and toe-out) at initial contact...
March 20, 2017: Knee
https://www.readbyqxmd.com/read/28336085/the-dual-effect-of-vegetation-green-up-date-and-strong-wind-on-the-return-period-of-spring-dust-storms
#17
Jieling Feng, Ning Li, Zhengtao Zhang, Xi Chen
Vegetation phenology changes have been widely applied in the disaster risk assessments of the spring dust storms, and vegetation green-up date shifts have a strong influence on dust storms. However, the effect of earlier vegetation green-up dates due to climate warming on the evaluation of dust storms return periods remains an important, but poorly understood issue. In this study, we evaluate the spring dust storm return period (February to June) in Inner Mongolia, Northern China, using 165 observations of severe spring dust storm events from 16 weather stations, and regional vegetation green-up dates as an integrated factor from NDVI (Normalized Difference Vegetation Index), covering a period from 1982 to 2007, by building the bivariate Copula model...
March 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28336017/weather-webcam-system-for-the-safety-of-helicopter-emergency-medical-services-in-miyazaki-japan
#18
Katsuhiro Kanemaru, Robert Katzer, Syu Hanato, Koji Nakamura, Hiroshi Matsuoka, Hidenobu Ochiai
OBJECTIVE: In Japan, the helicopter emergency medical services (HEMS) system was initiated in 2001 and introduced to Miyazaki Prefecture in 2012. Mountainous areas occupy 88% of Miyazaki's land area, and HEMS flights can be subject to the effects of weather. Therefore, ensuring safety in changing weather conditions is a necessity for HEMS. METHODS: The weather webcam system (WWS) was established to observe the meteorological conditions in 29 locations. Assessments of the probability of a flight based on conventional data including a weather chart provided by the Japan Meteorological Agency and meteorological reports provided by the Miyazaki Airport were compared with the assessment based on the combination of the information obtained from the WWS and the conventional data...
March 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28335826/first-establishment-of-microsatellite-markers-in-clausiliid-snails-mollusca-gastropoda-clausiliidae
#19
Katharina Jaksch, Luise Kruckenhauser, Elisabeth Haring, Zoltán Fehér
BACKGROUND: Clausiliidae (door snails) are gastropods with a very high diversity concerning shell morphology, especially of their complex closing apparatus, which provides the most important diagnostic traits for classification of taxa. Due to the high variability, a high number of taxa has been described, though their systematics and taxonomy is partially controversially discussed. Montenegrina is the second most speciose door snail genus in Europe. It is an obligate rock-dwelling land snail and has, compared to its complex systematics, a rather small distribution range in the western parts of the Balkan Peninsula...
March 23, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28335483/land-use-for-edible-protein-of-animal-origin-a-review
#20
REVIEW
Gerhard Flachowsky, Ulrich Meyer, Karl-Heinz Südekum
The present period is characterized by a growing world population and a higher demand for more and better quality food, as well as other products for an improved standard of living. In the future, there will be increasingly strong competition for arable land and non-renewable resources such as fossil carbon-sources, water, and some minerals, as well as between food, feed, fuel, fiber, flowers, and fun (6 F's). Proteins of animal origin like milk, meat, fish, eggs and, probably, insects are very valuable sources of essential amino acids, minerals and vitamins, but their production consumes some non-renewable resources including arable land and causes considerable emissions...
March 18, 2017: Animals: An Open Access Journal From MDPI
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