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https://www.readbyqxmd.com/read/28453570/contrasting-effects-of-heat-pulses-on-different-trophic-levels-an-experiment-with-a-herbivore-parasitoid-model-system
#1
Stijn J J Schreven, Enric Frago, Annemiek Stens, Peter W de Jong, Joop J A van Loon
Under predicted global climate change, species will be gradually exposed to warmer temperatures, and to a more variable climate including more intense and more frequent heatwaves. Increased climatic variability is expected to have different effects on species and ecosystems than gradual warming. A key challenge to predict the impact of climate change is to understand how temperature changes will affect species interactions. Herbivorous insects and their natural enemies belong to some of the largest groups of terrestrial animals, and thus they have a great impact on the functioning of ecosystems and on the services these ecosystems provide...
2017: PloS One
https://www.readbyqxmd.com/read/28448923/impacts-of-himalayas-on-black-carbon-over-the-tibetan-plateau-during-summer-monsoon
#2
Shuyu Zhao, Xuexi Tie, Xin Long, Junji Cao
The Tibetan Plateau (TP) plays important roles in global climate and environment. This study combines in-situ BC measurements in the Himalayas and the Indo-Gangetic Plain (IGP) with a regional dynamical and chemical model (WRF-Chem model) to investigate the effect of the trans-Himalayas on black carbon (BC) from the IGP to the TP during Indian summer monsoon. To determine topographic effects of the trans-Himalayas on BC concentrations over the TP, sensitive experiments were conducted by applying the WRF-Chem model...
April 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28447639/frequency-of-extreme-sahelian-storms-tripled-since-1982-in-satellite-observations
#3
Christopher M Taylor, Danijel Belušić, Françoise Guichard, Douglas J Parker, Théo Vischel, Olivier Bock, Phil P Harris, Serge Janicot, Cornelia Klein, Gérémy Panthou
The hydrological cycle is expected to intensify under global warming, with studies reporting more frequent extreme rain events in many regions of the world, and predicting increases in future flood frequency. Such early, predominantly mid-latitude observations are essential because of shortcomings within climate models in their depiction of convective rainfall. A globally important group of intense storms-mesoscale convective systems (MCSs)-poses a particular challenge, because they organize dynamically on spatial scales that cannot be resolved by conventional climate models...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28447373/avoiding-a-crisis-of-motivation-for-ocean-management-under-global-environmental-change
#4
REVIEW
Peter J Mumby, James N Sanchirico, Kenneth Broad, Michael W Beck, Peter Tyedmers, Megan Morikawa, Thomas A Okey, Larry B Crowder, Elizabeth A Fulton, Denny Kelso, Joanie A Kleypas, Stephan B Munch, Polita Glynn, Kathryn Matthews, Jane Lubchenco
Climate change and ocean acidification are altering marine ecosystems and, from a human perspective, creating both winners and losers. Human responses to these changes are complex, but may result in reduced government investments in regulation, resource management, monitoring and enforcement. Moreover, a lack of peoples' experience of climate change may drive some towards attributing the symptoms of climate change to more familiar causes such as management failure. Taken together, we anticipate that management could become weaker and less effective as climate change continues...
April 27, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28446693/lipid-consumption-in-coral-larvae-differs-among-sites-a-consideration-of-environmental-history-in-a-global-ocean-change-scenario
#5
Emily B Rivest, Chii-Shiarng Chen, Tung-Yung Fan, Hsing-Hui Li, Gretchen E Hofmann
The success of early life-history stages is an environmentally sensitive bottleneck for many marine invertebrates. Responses of larvae to environmental stress may vary due to differences in maternal investment of energy stores and acclimatization/adaptation of a population to local environmental conditions. In this study, we compared two populations from sites with different environmental regimes (Moorea and Taiwan). We assessed the responses of Pocillopora damicornis larvae to two future co-occurring environmental stressors: elevated temperature and ocean acidification...
April 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28446614/constraining-the-instantaneous-aerosol-influence-on-cloud-albedo
#6
Edward Gryspeerdt, Johannes Quaas, Sylvaine Ferrachat, Andrew Gettelman, Steven Ghan, Ulrike Lohmann, Hugh Morrison, David Neubauer, Daniel G Partridge, Philip Stier, Toshihiko Takemura, Hailong Wang, Minghuai Wang, Kai Zhang
Much of the uncertainty in estimates of the anthropogenic forcing of climate change comes from uncertainties in the instantaneous effect of aerosols on cloud albedo, known as the Twomey effect or the radiative forcing from aerosol-cloud interactions (RFaci), a component of the total or effective radiative forcing. Because aerosols serving as cloud condensation nuclei can have a strong influence on the cloud droplet number concentration (Nd ), previous studies have used the sensitivity of the Nd to aerosol properties as a constraint on the strength of the RFaci...
April 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28446229/expanding-protection-motivation-theory-investigating-an-application-to-animal-owners-and-emergency-responders-in-bushfire-emergencies
#7
Rachel Westcott, Kevin Ronan, Hilary Bambrick, Melanie Taylor
BACKGROUND: Protection Motivation Theory (PMT) was developed by Rogers in 1975, to describe how individuals are motivated to react in a self-protective way towards a perceived health threat. Rogers expected the use of PMT to diversify over time, which has proved true over four decades. The purpose of this paper is to explore how PMT can be used and expanded to inform and improve public safety strategies in natural hazards. As global climate change impacts on the Australian environment, natural hazards seem to be increasing in scale and frequency, and Emergency Services' public education campaigns have necessarily escalated to keep pace with perceived public threat...
April 26, 2017: BMC Psychology
https://www.readbyqxmd.com/read/28445505/dominance-of-an-alien-shrub-rhus-typhina-over-a-native-shrub-vitex-negundo-var-heterophylla-under-variable-water-supply-patterns
#8
Ning Du, Xiangfeng Tan, Qiang Li, Xiao Liu, Wenxin Zhang, Renqing Wang, Jian Liu, Weihua Guo
Temporal heterogeneity of a resource supply can have a profound effect on the interactions between alien and native plant species and their potential invasiveness. Precipitation patterns may be variable and result in a higher heterogeneity of water supply with global climate change. In this study, an alien shrub species, Rhus typhina, introduced to China from North America and a native shrub species, Vitex negundo var. heterophylla, were grown in monoculture and mixed culture under different water supply regimes, with four levels of water supply frequencies but with a constant level of total supplied water...
2017: PloS One
https://www.readbyqxmd.com/read/28444505/occupational-heat-stress-assessment-and-protective-strategies-in-the-context-of-climate-change
#9
Chuansi Gao, Kalev Kuklane, Per-Olof Östergren, Tord Kjellstrom
Global warming will unquestionably increase the impact of heat on individuals who work in already hot workplaces in hot climate areas. The increasing prevalence of this environmental health risk requires the improvement of assessment methods linked to meteorological data. Such new methods will help to reveal the size of the problem and design appropriate interventions at individual, workplace and societal level. The evaluation of occupational heat stress requires measurement of four thermal climate factors (air temperature, humidity, air velocity and heat radiation); available weather station data may serve this purpose...
April 25, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28442755/global-and-local-environmental-changes-as-drivers-of-buruli-ulcer-emergence
#10
REVIEW
Marine Combe, Camilla Jensen Velvin, Aaron Morris, Andres Garchitorena, Kevin Carolan, Daniel Sanhueza, Benjamin Roche, Pierre Couppié, Jean-François Guégan, Rodolphe Elie Gozlan
Many emerging infectious diseases are caused by generalist pathogens that infect and transmit via multiple host species with multiple dissemination routes, thus confounding the understanding of pathogen transmission pathways from wildlife reservoirs to humans. The emergence of these pathogens in human populations has frequently been associated with global changes, such as socio-economic, climate or biodiversity modifications, by allowing generalist pathogens to invade and persist in new ecological niches, infect new host species, and thus change the nature of transmission pathways...
April 26, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28441489/a-comparison-of-gasoline-direct-injection-gdi-and-port-fuel-injection-pfi-vehicle-emissions-emission-certification-standards-cold-start-secondary-organic-aerosol-formation-potential-and-potential-climate-impacts
#11
Georges Saliba, Rawad Saleh, Yunliang Zhao, Albert A Presto, Andrew T Lambe, Bruce Frodin, Satya Sardar, Hector Maldonado, Christine Maddox, Andrew A May, Greg T Drozd, Allen H Goldstein, Lynn M Russell, Fabian P Hagen, Allen L Robinson
Recent increases in the Corporate Average Fuel Economy standards have led to widespread adoption of vehicles equipped with gasoline direct injection (GDI) engines. Changes in engine technologies can alter emissions. To quantify these effects, we measured gas- and particle-phase emissions from eighty-two light duty gasoline vehicles recruited from the California in-use fleet tested on a chassis dynamometer using the cold-start unified cycle. The fleet included 15 GDI vehicles, including 8 GDIs certified to the most stringent emissions standard, super-ultra-low-emission vehicles (SULEV)...
April 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28441412/the-role-of-climate-and-environmental-variables-in-structuring-bird-assemblages-in-the-seasonally-dry-tropical-forests-sdtfs
#12
Gabriela Silva Ribeiro Gonçalves, Pablo Vieira Cerqueira, Leandro Schlemmer Brasil, Marcos Pérsio Dantas Santos
Understanding the processes that influence species diversity is still a challenge in ecological studies. However, there are two main theories to discuss this topic, the niche theory and the neutral theory. Our objective was to understand the importance of environmental and spatial processes in structuring bird communities within the hydrological seasons in dry forest areas in northeastern Brazil. The study was conducted in two National Parks, the Serra da Capivara and Serra das Confusões National Parks, where 36 areas were sampled in different seasons (dry, dry/rainy transition, rainy, rainy/dry transition), in 2012 and 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28440930/impacts-of-changing-ocean-circulation-on-the-distribution-of-marine-microplastic-litter
#13
Natalie Ac Welden, Amy L Lusher
Marine plastic pollution is currently a major scientific focus, with attention paid to its distribution and impacts within ecosystems. With recent estimates indicating that the mass of plastic released to the marine environment may reach 250 million metric tons by 2025, the effects of plastic on our oceans are set to increase. Distribution of microplastics, those plastics measuring less than 5 mm, are of increasing concern because they represent an increasing proportion of marine litter and are known to interact with species in a range of marine habitats...
May 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28440790/large-scale-modeled-contemporary-and-future-water-temperature-estimates-for-10774-midwestern-u-s-lakes
#14
Luke A Winslow, Gretchen J A Hansen, Jordan S Read, Michael Notaro
Climate change has already influenced lake temperatures globally, but understanding future change is challenging. The response of lakes to changing climate drivers is complex due to the nature of lake-atmosphere coupling, ice cover, and stratification. To better understand the diversity of lake responses to climate change and give managers insight on individual lakes, we modelled daily water temperature profiles for 10,774 lakes in Michigan, Minnesota, and Wisconsin for contemporary (1979-2015) and future (2020-2040 and 2080-2100) time periods with climate models based on the Representative Concentration Pathway 8...
April 25, 2017: Scientific Data
https://www.readbyqxmd.com/read/28439669/effects-of-desiccation-and-starvation-on-thermal-tolerance-and-the-heat-shock-response-in-forest-ants
#15
Andrew D Nguyen, Kerri DeNovellis, Skyler Resendez, Jeremy D Pustilnik, Nicholas J Gotelli, Joel D Parker, Sara Helms Cahan
Temperature increases associated with global climate change are likely to be accompanied by additional environmental stressors such as desiccation and food limitation, which may alter how temperature impacts organismal performance. To investigate how interactions between stressors influence thermal tolerance in the common forest ant, Aphaenogaster picea, we compared the thermal resistance of workers to heat shock with and without pre-exposure to desiccation or starvation stress. Knockdown (KD) time at 40.5 °C of desiccated ants was reduced 6% compared to controls, although longer exposure to desiccation did not further reduce thermal tolerance...
April 24, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28437184/control-of-mosquito-borne-diseases-in-northwestern-italy-preparedness-from-one-season-to-the-next
#16
Federica Verna, Paola Modesto, Maria Cristina Radaelli, Danila Raffaella Francese, Enrico Monaci, Rosanna Desiato, Carla Grattarola, Simone Peletto, Andrea Mosca, Giovanni Savini, Rosa Chianese, Vittorio Demicheli, Marino Prearo, Laura Chiavacci, Alessandra Pautasso, Cristina Casalone
INTRODUCTION: Mosquito-borne diseases (MBDs) are spreading worldwide due to globalization and climate change, representing a threat for both humans and animals. Of great concern are the infections caused by viruses belonging to the Flavivirus genus as West Nile virus (WNV) and Usutu virus (USUV) transmitted by Culex sp. or Dengue virus and Zika virus (ZIKV), transmitted by Aedes sp. This work describes the surveillance protocol enforced in Piedmont (Northwestern Italy) to control MBDs spread, focusing on the activities performed on mosquitoes during the 2015 vector season...
May 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28433817/climate-change-risks-extinction-debt-and-conservation-implications-for-a-threatened-freshwater-fish-carmine-shiner-notropis-percobromus
#17
Shubha N Pandit, Bryan M Maitland, Laxmi K Pandit, Mark S Poesch, Eva C Enders
Climate change is affecting many freshwater species, particularly fishes. Predictions of future climate change suggest large and deleterious effects on species with narrow dispersal abilities due to limited hydrological connectivity. In turn, this creates the potential for population isolation in thermally unsuitable habitats, leading to physiological stress, species declines or possible extirpation. The current extent of many freshwater fish species' spatio-temporal distribution patterns and their sensitivity to thermal impacts from climate change - critical information for conservation planning - are often unknown...
April 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28433768/response-of-evapotranspiration-to-changes-in-land-use-and-land-cover-and-climate-in-china-during-2001-2013
#18
Gen Li, Fangmin Zhang, Yuanshu Jing, Yibo Liu, Ge Sun
Land surface evapotranspiration (ET) is a central component of the Earth's global energy balance and water cycle. Understanding ET is important in quantifying the impacts of human influences on the hydrological cycle and thus helps improving water use efficiency and strengthening water use planning and watershed management. China has experienced tremendous land use and land cover changes (LUCC) as a result of urbanization and ecological restoration under a broad background of climate change. This study used MODIS data products to analyze how LUCC and climate change affected ET in China in the period 2001-2013...
April 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28432859/the-impact-of-global-climate-change-on-the-spread-of-parasitic-nematodes
#19
Anna Okulewicz
Climate changes may influence the frequency, intensity and geographical distribution of parasites, directly affecting their dispersive stages in the environment (eggs, larvae) and, indirectly, the larvae living mainly in invertebrate intermediate hosts. In biologically diverse nematodes climate warming contributes to the increase in the range of distribution, colonization of new hosts and modification of their development cycles. This is particularly acute in the Arctic and pertains, for instance, to nematodes Ostertagia gruehneri and Setaria tundra parasitizing reindeer Rangifer tarandus and Umingmakstrongylus pallikuukensis in musk oxen (Ovibos moschatus)...
2017: Annals of Parasitology
https://www.readbyqxmd.com/read/28429985/attitude-of-us-obstetricians-and-gynaecologists-to-global-warming-and-medical-waste
#20
Cassandra Thiel, Paula Duncan, Noe Woods
Objectives Global warming (or climate change) is a major public health issue, and health services are one of the largest contributors to greenhouse gas emissions in high-income countries. Despite the scale of the health care sector's resource consumption, little is known about the attitude of physicians and their willingness to participate in efforts to reduce the environmental impact of health services. Methods A survey of 236 obstetricians and gynaecologists at the University of Pittsburgh Medical Center in Western Pennsylvania, USA...
January 1, 2017: Journal of Health Services Research & Policy
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