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https://www.readbyqxmd.com/read/28100027/moving-beyond-presence-and-absence-when-examining-changes-in-species-distributions
#1
Michael B Ashcroft, Diana H King, Ben Raymond, Johanna D Turnbull, Jane Wasley, Sharon A Robinson
Species distributions are often simplified to binary representations of the ranges where they are present and absent. It is then common to look for changes in these ranges as indicators of the effects of climate change, the expansion or control of invasive species or the impact of human land use changes. We argue that there are inherent problems with this approach, and more emphasis should be placed on species relative abundance rather than just presence. The sampling effort required to be confident of absence is often impractical to achieve, and estimates of species range changes based on survey data are therefore inherently sensitive to sampling intensity...
January 18, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28094785/high-resolution-african-population-projections-from-radiative-forcing-and-socio-economic-models-2000-to-2100
#2
Niklas Boke-Olén, Abdulhakim M Abdi, Ola Hall, Veiko Lehsten
For its fifth assessment report, the Intergovernmental Panel on Climate Change divided future scenario projections (2005-2100) into two groups: Socio-Economic Pathways (SSPs) and Representative Concentration Pathways (RCPs). Each SSP has country-level urban and rural population projections, while the RCPs are based on radiative forcing caused by greenhouse gases, aerosols and associated land-use change. In order for these projections to be applicable in earth system models, SSP and RCP population projections must be at the same spatial scale...
January 17, 2017: Scientific Data
https://www.readbyqxmd.com/read/28093875/what-are-the-evolutionary-origins-of-stomatal-responses-to-abscisic-acid-aba-in-land-plants
#3
Frances C Sussmilch, Timothy J Brodribb, Scott A M McAdam
The evolution of active stomatal closure in response to leaf water deficit, mediated by the hormone abscisic acid (ABA), has been the subject of recent debate. Two different models for the timing of the evolution of this response recur in the literature. A single-step model for stomatal control suggests that stomata evolved active, ABA-mediated control of stomatal aperture, when these structures first appeared, prior to the divergence of bryophyte and vascular plant lineages. In contrast, a gradualistic model for stomatal control proposes that the most basal vascular plant stomata responded passively to changes in leaf water status...
January 17, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28092919/compensatory-water-effects-link-yearly-global-land-co2-sink-changes-to-temperature
#4
Martin Jung, Markus Reichstein, Christopher R Schwalm, Chris Huntingford, Stephen Sitch, Anders Ahlström, Almut Arneth, Gustau Camps-Valls, Philippe Ciais, Pierre Friedlingstein, Fabian Gans, Kazuhito Ichii, Atul K Jain, Etsushi Kato, Dario Papale, Ben Poulter, Botond Raduly, Christian Rödenbeck, Gianluca Tramontana, Nicolas Viovy, Ying-Ping Wang, Ulrich Weber, Sönke Zaehle, Ning Zeng
Large interannual variations in the measured growth rate of atmospheric carbon dioxide (CO2) originate primarily from fluctuations in carbon uptake by land ecosystems. It remains uncertain, however, to what extent temperature and water availability control the carbon balance of land ecosystems across spatial and temporal scales. Here we use empirical models based on eddy covariance data and process-based models to investigate the effect of changes in temperature and water availability on gross primary productivity (GPP), terrestrial ecosystem respiration (TER) and net ecosystem exchange (NEE) at local and global scales...
January 16, 2017: Nature
https://www.readbyqxmd.com/read/28076360/consequences-of-global-warming-of-1-5-%C3%A2-c-and-2-%C3%A2-c-for-regional-temperature-and-precipitation-changes-in-the-contiguous-united-states
#5
Ambarish V Karmalkar, Raymond S Bradley
The differential warming of land and ocean leads to many continental regions in the Northern Hemisphere warming at rates higher than the global mean temperature. Adaptation and conservation efforts will, therefore, benefit from understanding regional consequences of limiting the global mean temperature increase to well below 2°C above pre-industrial levels, a limit agreed upon at the United Nations Climate Summit in Paris in December 2015. Here, we analyze climate model simulations from the Coupled Model Intercomparison Project Phase 5 (CMIP5) to determine the timing and magnitude of regional temperature and precipitation changes across the contiguous United States (US) for global warming of 1...
2017: PloS One
https://www.readbyqxmd.com/read/28075011/the-changing-contribution-of-top-down-and-bottom-up-limitation-of-mesopredators-during-220-years-of-land-use-and-climate-change
#6
Marianne Pasanen-Mortensen, Bodil Elmhagen, Harto Lindén, Roger Bergström, Märtha Wallgren, Ype van der Velde, Sara A O Cousins
Apex predators may buffer bottom-up driven ecosystem change, as top-down suppression may dampen herbivore and mesopredator responses to increased resource availability. However, theory suggests that for this buffering capacity to be realized, the equilibrium abundance of apex predators must increase. This raises the question: will apex predators maintain herbivore/mesopredator limitation, if bottom-up change relaxes resource constraints? Here, we explore changes in mesopredator (red fox Vulpes vulpes) abundance over 220 years in response to eradication and recovery of an apex predator (Eurasian lynx Lynx lynx), and changes in land use and climate which are linked to resource availability...
January 11, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28072445/a-joint-analytic-method-for-estimating-aquitard-hydraulic-parameters
#7
Chao Zhuang, Zhifang Zhou, Walter A Illman
The vertical hydraulic conductivity (Kv ), elastic (Sske ), and inelastic (Sskv ) skeletal specific storage of aquitards are three of the most critical parameters in land subsidence investigations. Two new analytic methods are proposed to estimate the three parameters. The first analytic method is based on a new concept of delay time ratio for estimating Kv and Sske of an aquitard subject to long-term stable, cyclic hydraulic head changes at boundaries. The second analytic method estimates the Sskv of the aquitard subject to linearly declining hydraulic heads at boundaries...
January 10, 2017: Ground Water
https://www.readbyqxmd.com/read/28070299/evaluating-citizen-science-data-for-forecasting-species-responses-to-national-forest-management
#8
Louise Mair, Philip J Harrison, Mari Jönsson, Swantje Löbel, Jenni Nordén, Juha Siitonen, Tomas Lämås, Anders Lundström, Tord Snäll
The extensive spatial and temporal coverage of many citizen science datasets (CSD) makes them appealing for use in species distribution modeling and forecasting. However, a frequent limitation is the inability to validate results. Here, we aim to assess the reliability of CSD for forecasting species occurrence in response to national forest management projections (representing 160,366 km(2)) by comparison against forecasts from a model based on systematically collected colonization-extinction data. We fitted species distribution models using citizen science observations of an old-forest indicator fungus Phellinus ferrugineofuscus...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28070282/the-database-of-the-predicts-projecting-responses-of-ecological-diversity-in-changing-terrestrial-systems-project
#9
Lawrence N Hudson, Tim Newbold, Sara Contu, Samantha L L Hill, Igor Lysenko, Adriana De Palma, Helen R P Phillips, Tamera I Alhusseini, Felicity E Bedford, Dominic J Bennett, Hollie Booth, Victoria J Burton, Charlotte W T Chng, Argyrios Choimes, David L P Correia, Julie Day, Susy Echeverría-Londoño, Susan R Emerson, Di Gao, Morgan Garon, Michelle L K Harrison, Daniel J Ingram, Martin Jung, Victoria Kemp, Lucinda Kirkpatrick, Callum D Martin, Yuan Pan, Gwilym D Pask-Hale, Edwin L Pynegar, Alexandra N Robinson, Katia Sanchez-Ortiz, Rebecca A Senior, Benno I Simmons, Hannah J White, Hanbin Zhang, Job Aben, Stefan Abrahamczyk, Gilbert B Adum, Virginia Aguilar-Barquero, Marcelo A Aizen, Belén Albertos, E L Alcala, Maria Del Mar Alguacil, Audrey Alignier, Marc Ancrenaz, Alan N Andersen, Enrique Arbeláez-Cortés, Inge Armbrecht, Víctor Arroyo-Rodríguez, Tom Aumann, Jan C Axmacher, Badrul Azhar, Adrián B Azpiroz, Lander Baeten, Adama Bakayoko, András Báldi, John E Banks, Sharad K Baral, Jos Barlow, Barbara I P Barratt, Lurdes Barrico, Paola Bartolommei, Diane M Barton, Yves Basset, Péter Batáry, Adam J Bates, Bruno Baur, Erin M Bayne, Pedro Beja, Suzan Benedick, Åke Berg, Henry Bernard, Nicholas J Berry, Dinesh Bhatt, Jake E Bicknell, Jochen H Bihn, Robin J Blake, Kadiri S Bobo, Roberto Bóçon, Teun Boekhout, Katrin Böhning-Gaese, Kevin J Bonham, Paulo A V Borges, Sérgio H Borges, Céline Boutin, Jérémy Bouyer, Cibele Bragagnolo, Jodi S Brandt, Francis Q Brearley, Isabel Brito, Vicenç Bros, Jörg Brunet, Grzegorz Buczkowski, Christopher M Buddle, Rob Bugter, Erika Buscardo, Jörn Buse, Jimmy Cabra-García, Nilton C Cáceres, Nicolette L Cagle, María Calviño-Cancela, Sydney A Cameron, Eliana M Cancello, Rut Caparrós, Pedro Cardoso, Dan Carpenter, Tiago F Carrijo, Anelena L Carvalho, Camila R Cassano, Helena Castro, Alejandro A Castro-Luna, Cerda B Rolando, Alexis Cerezo, Kim Alan Chapman, Matthieu Chauvat, Morten Christensen, Francis M Clarke, Daniel F R Cleary, Giorgio Colombo, Stuart P Connop, Michael D Craig, Leopoldo Cruz-López, Saul A Cunningham, Biagio D'Aniello, Neil D'Cruze, Pedro Giovâni da Silva, Martin Dallimer, Emmanuel Danquah, Ben Darvill, Jens Dauber, Adrian L V Davis, Jeff Dawson, Claudio de Sassi, Benoit de Thoisy, Olivier Deheuvels, Alain Dejean, Jean-Louis Devineau, Tim Diekötter, Jignasu V Dolia, Erwin Domínguez, Yamileth Dominguez-Haydar, Silvia Dorn, Isabel Draper, Niels Dreber, Bertrand Dumont, Simon G Dures, Mats Dynesius, Lars Edenius, Paul Eggleton, Felix Eigenbrod, Zoltán Elek, Martin H Entling, Karen J Esler, Ricardo F de Lima, Aisyah Faruk, Nina Farwig, Tom M Fayle, Antonio Felicioli, Annika M Felton, Roderick J Fensham, Ignacio C Fernandez, Catarina C Ferreira, Gentile F Ficetola, Cristina Fiera, Bruno K C Filgueiras, Hüseyin K Fırıncıoğlu, David Flaspohler, Andreas Floren, Steven J Fonte, Anne Fournier, Robert E Fowler, Markus Franzén, Lauchlan H Fraser, Gabriella M Fredriksson, Geraldo B Freire, Tiago L M Frizzo, Daisuke Fukuda, Dario Furlani, René Gaigher, Jörg U Ganzhorn, Karla P García, Juan C Garcia-R, Jenni G Garden, Ricardo Garilleti, Bao-Ming Ge, Benoit Gendreau-Berthiaume, Philippa J Gerard, Carla Gheler-Costa, Benjamin Gilbert, Paolo Giordani, Simonetta Giordano, Carly Golodets, Laurens G L Gomes, Rachelle K Gould, Dave Goulson, Aaron D Gove, Laurent Granjon, Ingo Grass, Claudia L Gray, James Grogan, Weibin Gu, Moisès Guardiola, Nihara R Gunawardene, Alvaro G Gutierrez, Doris L Gutiérrez-Lamus, Daniela H Haarmeyer, Mick E Hanley, Thor Hanson, Nor R Hashim, Shombe N Hassan, Richard G Hatfield, Joseph E Hawes, Matt W Hayward, Christian Hébert, Alvin J Helden, John-André Henden, Philipp Henschel, Lionel Hernández, James P Herrera, Farina Herrmann, Felix Herzog, Diego Higuera-Diaz, Branko Hilje, Hubert Höfer, Anke Hoffmann, Finbarr G Horgan, Elisabeth Hornung, Roland Horváth, Kristoffer Hylander, Paola Isaacs-Cubides, Hiroaki Ishida, Masahiro Ishitani, Carmen T Jacobs, Víctor J Jaramillo, Birgit Jauker, F Jiménez Hernández, McKenzie F Johnson, Virat Jolli, Mats Jonsell, S Nur Juliani, Thomas S Jung, Vena Kapoor, Heike Kappes, Vassiliki Kati, Eric Katovai, Klaus Kellner, Michael Kessler, Kathryn R Kirby, Andrew M Kittle, Mairi E Knight, Eva Knop, Florian Kohler, Matti Koivula, Annette Kolb, Mouhamadou Kone, Ádám Kőrösi, Jochen Krauss, Ajith Kumar, Raman Kumar, David J Kurz, Alex S Kutt, Thibault Lachat, Victoria Lantschner, Francisco Lara, Jesse R Lasky, Steven C Latta, William F Laurance, Patrick Lavelle, Violette Le Féon, Gretchen LeBuhn, Jean-Philippe Légaré, Valérie Lehouck, María V Lencinas, Pia E Lentini, Susan G Letcher, Qi Li, Simon A Litchwark, Nick A Littlewood, Yunhui Liu, Nancy Lo-Man-Hung, Carlos A López-Quintero, Mounir Louhaichi, Gabor L Lövei, Manuel Esteban Lucas-Borja, Victor H Luja, Matthew S Luskin, M Cristina MacSwiney G, Kaoru Maeto, Tibor Magura, Neil Aldrin Mallari, Louise A Malone, Patrick K Malonza, Jagoba Malumbres-Olarte, Salvador Mandujano, Inger E Måren, Erika Marin-Spiotta, Charles J Marsh, E J P Marshall, Eliana Martínez, Guillermo Martínez Pastur, David Moreno Mateos, Margaret M Mayfield, Vicente Mazimpaka, Jennifer L McCarthy, Kyle P McCarthy, Quinn S McFrederick, Sean McNamara, Nagore G Medina, Rafael Medina, Jose L Mena, Estefania Mico, Grzegorz Mikusinski, Jeffrey C Milder, James R Miller, Daniel R Miranda-Esquivel, Melinda L Moir, Carolina L Morales, Mary N Muchane, Muchai Muchane, Sonja Mudri-Stojnic, A Nur Munira, Antonio Muoñz-Alonso, B F Munyekenye, Robin Naidoo, A Naithani, Michiko Nakagawa, Akihiro Nakamura, Yoshihiro Nakashima, Shoji Naoe, Guiomar Nates-Parra, Dario A Navarrete Gutierrez, Luis Navarro-Iriarte, Paul K Ndang'ang'a, Eike L Neuschulz, Jacqueline T Ngai, Violaine Nicolas, Sven G Nilsson, Norbertas Noreika, Olivia Norfolk, Jorge Ari Noriega, David A Norton, Nicole M Nöske, A Justin Nowakowski, Catherine Numa, Niall O'Dea, Patrick J O'Farrell, William Oduro, Sabine Oertli, Caleb Ofori-Boateng, Christopher Omamoke Oke, Vicencio Oostra, Lynne M Osgathorpe, Samuel Eduardo Otavo, Navendu V Page, Juan Paritsis, Alejandro Parra-H, Luke Parry, Guy Pe'er, Peter B Pearman, Nicolás Pelegrin, Raphaël Pélissier, Carlos A Peres, Pablo L Peri, Anna S Persson, Theodora Petanidou, Marcell K Peters, Rohan S Pethiyagoda, Ben Phalan, T Keith Philips, Finn C Pillsbury, Jimmy Pincheira-Ulbrich, Eduardo Pineda, Joan Pino, Jaime Pizarro-Araya, A J Plumptre, Santiago L Poggio, Natalia Politi, Pere Pons, Katja Poveda, Eileen F Power, Steven J Presley, Vânia Proença, Marino Quaranta, Carolina Quintero, Romina Rader, B R Ramesh, Martha P Ramirez-Pinilla, Jai Ranganathan, Claus Rasmussen, Nicola A Redpath-Downing, J Leighton Reid, Yana T Reis, José M Rey Benayas, Juan Carlos Rey-Velasco, Chevonne Reynolds, Danilo Bandini Ribeiro, Miriam H Richards, Barbara A Richardson, Michael J Richardson, Rodrigo Macip Ríos, Richard Robinson, Carolina A Robles, Jörg Römbke, Luz Piedad Romero-Duque, Matthias Rös, Loreta Rosselli, Stephen J Rossiter, Dana S Roth, T'ai H Roulston, Laurent Rousseau, André V Rubio, Jean-Claude Ruel, Jonathan P Sadler, Szabolcs Sáfián, Romeo A Saldaña-Vázquez, Katerina Sam, Ulrika Samnegård, Joana Santana, Xavier Santos, Jade Savage, Nancy A Schellhorn, Menno Schilthuizen, Ute Schmiedel, Christine B Schmitt, Nicole L Schon, Christof Schüepp, Katharina Schumann, Oliver Schweiger, Dawn M Scott, Kenneth A Scott, Jodi L Sedlock, Steven S Seefeldt, Ghazala Shahabuddin, Graeme Shannon, Douglas Sheil, Frederick H Sheldon, Eyal Shochat, Stefan J Siebert, Fernando A B Silva, Javier A Simonetti, Eleanor M Slade, Jo Smith, Allan H Smith-Pardo, Navjot S Sodhi, Eduardo J Somarriba, Ramón A Sosa, Grimaldo Soto Quiroga, Martin-Hugues St-Laurent, Brian M Starzomski, Constanti Stefanescu, Ingolf Steffan-Dewenter, Philip C Stouffer, Jane C Stout, Ayron M Strauch, Matthew J Struebig, Zhimin Su, Marcela Suarez-Rubio, Shinji Sugiura, Keith S Summerville, Yik-Hei Sung, Hari Sutrisno, Jens-Christian Svenning, Tiit Teder, Caragh G Threlfall, Anu Tiitsaar, Jacqui H Todd, Rebecca K Tonietto, Ignasi Torre, Béla Tóthmérész, Teja Tscharntke, Edgar C Turner, Jason M Tylianakis, Marcio Uehara-Prado, Nicolas Urbina-Cardona, Denis Vallan, Adam J Vanbergen, Heraldo L Vasconcelos, Kiril Vassilev, Hans A F Verboven, Maria João Verdasca, José R Verdú, Carlos H Vergara, Pablo M Vergara, Jort Verhulst, Massimiliano Virgilio, Lien Van Vu, Edward M Waite, Tony R Walker, Hua-Feng Wang, Yanping Wang, James I Watling, Britta Weller, Konstans Wells, Catrin Westphal, Edward D Wiafe, Christopher D Williams, Michael R Willig, John C Z Woinarski, Jan H D Wolf, Volkmar Wolters, Ben A Woodcock, Jihua Wu, Joseph M Wunderle, Yuichi Yamaura, Satoko Yoshikura, Douglas W Yu, Andrey S Zaitsev, Juliane Zeidler, Fasheng Zou, Ben Collen, Rob M Ewers, Georgina M Mace, Drew W Purves, Jörn P W Scharlemann, Andy Purvis
The PREDICTS project-Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)-has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical models of how local biodiversity responds to these measures. We describe and make freely available this 2016 release of the database, containing more than 3...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28069301/future-water-availability-in-the-largest-freshwater-mediterranean-lake-is-at-great-risk-as-evidenced-from-simulations-with-the-swat-model
#10
Tuba Bucak, Dennis Trolle, Hans Estrup Andersen, Hans Thodsen, Şeyda Erdoğan, Eti E Levi, Nur Filiz, Erik Jeppesen, Meryem Beklioğlu
Inter- and intra-annual water level fluctuations and changes in water flow regime are intrinsic characteristics of Mediterranean lakes. Additionally, considering climate change projections for the water-limited Mediterranean region, increased air temperatures and decreased precipitation are anticipated, leading to dramatic declines in lake water levels as well as severe water scarcity problems. The study site, Lake Beyşehir, the largest freshwater lake in the Mediterranean basin, is - like other Mediterranean lakes - threatened by climatic changes and over-abstraction of water for irrigated crop farming...
January 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28067259/quantifying-influences-of-physiographic-factors-on-temperate-dryland-vegetation-northwest-china
#11
Ziqiang Du, Xiaoyu Zhang, Xiaoming Xu, Hong Zhang, Zhitao Wu, Jing Pang
Variability in satellite measurements of terrestrial greenness in drylands is widely observed in land surface processes and global change studies. Yet the underlying causes differ and are not fully understood. Here, we used the GeogDetector model, a new spatial statistical approach, to examine the individual and combined influences of physiographic factors on dryland vegetation greenness changes, and to identify the most suitable characteristics of each principal factor for stimulating vegetation growth. Our results indicated that dryland greenness was predominantly affected by precipitation, soil type, vegetation type, and temperature, either separately or in concert...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28052508/social-ecological-outcomes-in-recreational-fisheries-the-interaction-of-lakeshore-development-and-stocking
#12
Jacob P Ziegler, Elizabeth J Golebie, Stuart E Jones, Brian C Weidel, Christopher T Solomon
Many ecosystems continue to experience rapid transformations due to processes like land use change and resource extraction. A systems approach to maintaining natural resources focuses on how interactions and feedbacks among components of complex social-ecological systems generate social and ecological outcomes. In recreational fisheries, residential shoreline development and fish stocking are two widespread human behaviors that influence fisheries, yet emergent social-ecological outcomes from these potentially interacting behaviors remain under explored...
January 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28052398/multi-state-multi-stage-modeling-of-nest-success-suggests-interaction-between-weather-and-land-use
#13
Mark W Miller, David I Leech, James W Pearce-Higgins, Robert A Robinson
Many factors may affect daily nest survival. We present a novel multi-state, multi-stage model to estimate daily survival for each nest stage, daily hatching probability and probability that a failed nest died during a specific stage when stage of failure is unknown. The model does not require that hatching date be known. We used data from a large citizen science dataset to demonstrate the application of this approach, exploring the impact of laying dates, weather conditions, conserved soil moisture, soil carbon, habitat type and urbanization on failure rates of common blackbird (Turdus merula) nests...
January 2017: Ecology
https://www.readbyqxmd.com/read/28050058/sustainable-crop-intensification-through-surface-water-irrigation-in-bangladesh-a-geospatial-assessment-of-landscape-scale-production-potential
#14
Timothy J Krupnik, Urs Schulthess, Zia Uddin Ahmed, Andrew J McDonald
Changing dietary preferences and population growth in South Asia have resulted in increasing demand for wheat and maize, along side high and sustained demand for rice. In the highly productive northwestern Indo-Gangetic Plains of South Asia, farmers utilize groundwater irrigation to assure that at least two of these crops are sequenced on the same field within the same year. Such double cropping has had a significant and positive influence on regional agricultural productivity. But in the risk-prone and food insecure lower Eastern Indo-Gangetic Plains (EIGP), cropping is less intensive...
January 2017: Land Use Policy
https://www.readbyqxmd.com/read/28049088/geospatial-assessment-of-bioenergy-land-use-and-its-impacts-on-soil-erosion-in-the-u-s-midwest
#15
William M SooHoo, Cuizhen Wang, Huixuan Li
Agricultural land use change, especially corn expansion since 2000s, has been accelerating to meet the growing bioenergy demand of the United States. This study identifies the environmentally sensitive lands (ESLs) in the U.S. Midwest using the distance-weighted Revised Universal Soil Loss Equation (RUSLE) associated with bioenergy land uses extracted from USDA Cropland Data Layers. The impacts of soil erosion to downstream wetlands and waterbodies in the river basin are counted in the RUSLE with an inverse distance weighting approach...
December 31, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/28028223/climate-change-damages-to-alaska-public-infrastructure-and-the-economics-of-proactive-adaptation
#16
April M Melvin, Peter Larsen, Brent Boehlert, James E Neumann, Paul Chinowsky, Xavier Espinet, Jeremy Martinich, Matthew S Baumann, Lisa Rennels, Alexandra Bothner, Dmitry J Nicolsky, Sergey S Marchenko
Climate change in the circumpolar region is causing dramatic environmental change that is increasing the vulnerability of infrastructure. We quantified the economic impacts of climate change on Alaska public infrastructure under relatively high and low climate forcing scenarios [representative concentration pathway 8.5 (RCP8.5) and RCP4.5] using an infrastructure model modified to account for unique climate impacts at northern latitudes, including near-surface permafrost thaw. Additionally, we evaluated how proactive adaptation influenced economic impacts on select infrastructure types and developed first-order estimates of potential land losses associated with coastal erosion and lengthening of the coastal ice-free season for 12 communities...
December 27, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28025296/physical-analysis-of-an-antarctic-ice-core-towards-an-integration-of-micro-and-macrodynamics-of-polar-ice
#17
Ilka Weikusat, Daniela Jansen, Tobias Binder, Jan Eichler, Sérgio H Faria, Frank Wilhelms, Sepp Kipfstuhl, Simon Sheldon, Heinrich Miller, Dorthe Dahl-Jensen, Thomas Kleiner
Microstructures from deep ice cores reflect the dynamic conditions of the drill location as well as the thermodynamic history of the drill site and catchment area in great detail. Ice core parameters (crystal lattice-preferred orientation (LPO), grain size, grain shape), mesostructures (visual stratigraphy) as well as borehole deformation were measured in a deep ice core drilled at Kohnen Station, Dronning Maud Land (DML), Antarctica. These observations are used to characterize the local dynamic setting and its rheological as well as microstructural effects at the EDML ice core drilling site (European Project for Ice Coring in Antarctica in DML)...
February 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28008960/precipitation-and-carbon-water-coupling-jointly-control-the-interannual-variability-of-global-land-gross-primary-production
#18
Yao Zhang, Xiangming Xiao, Luis Guanter, Sha Zhou, Philippe Ciais, Joanna Joiner, Stephen Sitch, Xiaocui Wu, Julia Nabel, Jinwei Dong, Etsushi Kato, Atul K Jain, Andy Wiltshire, Benjamin D Stocker
Carbon uptake by terrestrial ecosystems is increasing along with the rising of atmospheric CO2 concentration. Embedded in this trend, recent studies suggested that the interannual variability (IAV) of global carbon fluxes may be dominated by semi-arid ecosystems, but the underlying mechanisms of this high variability in these specific regions are not well known. Here we derive an ensemble of gross primary production (GPP) estimates using the average of three data-driven models and eleven process-based models...
December 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28006861/outdoor-air-pollution-and-risk-for-kidney-parenchyma-cancer-in-14-european-cohorts
#19
Ole Raaschou-Nielsen, Marie Pedersen, Massimo Stafoggia, Gudrun Weinmayr, Zorana J Andersen, Claudia Galassi, Johan Sommar, Bertil Forsberg, David Olsson, Bente Oftedal, Norun H Krog, Gunn Marit Aasvang, Andrei Pyko, Göran Pershagen, Michal Korek, Ulf De Faire, Nancy L Pedersen, Claes-Göran Östenson, Laura Fratiglioni, Mette Sørensen, Kirsten T Eriksen, Anne Tjønneland, Petra H Peeters, Bas Bueno-de-Mesquita, Michelle Plusquin, Timothy J Key, Andrea Jaensch, Gabriele Nagel, Bernhard Föger, Meng Wang, Ming-Yi Tsai, Sara Grioni, Alessandro Marcon, Vittorio Krogh, Fulvio Ricceri, Carlotta Sacerdote, Enrica Migliore, Ibon Tamayo, Pilar Amiano, Miren Dorronsoro, Ranjeet Sokhi, Ingeborg Kooter, Kees de Hoogh, Rob Beelen, Marloes Eeftens, Roel Vermeulen, Paolo Vineis, Bert Brunekreef, Gerard Hoek
Several studies have indicated weakly increased risk for kidney cancer among occupational groups exposed to gasoline vapors, engine exhaust, polycyclic aromatic hydrocarbons and other air pollutants, although not consistently. It was the aim to investigate possible associations between outdoor air pollution at the residence and the incidence of kidney parenchyma cancer in the general population. We used data from 14 European cohorts from the ESCAPE study. We geocoded and assessed air pollution concentrations at baseline addresses by land-use regression models for particulate matter (PM10 , PM2...
December 22, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28006741/evaluating-differences-in-forest-fragmentation-and-restoration-between-western-natural-forests-and-southeastern-plantation-forests-in-the-united-states
#20
Xinyu Ren, Yingying Lv, Mingshi Li
Changes in forest ecosystem structure and functions are considered some of the research issues in landscape ecology. In this study, advancing Forman's theory, we considered five spatially explicit processes associated with fragmentation, including perforation, dissection, subdivision, shrinkage, and attrition, and two processes associated with restoration, i.e., increment and expansion processes. Following this theory, a forest fragmentation and restoration process model that can detect the spatially explicit processes and ecological consequences of forest landscape change was developed and tested in the current analysis...
March 1, 2017: Journal of Environmental Management
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