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https://www.readbyqxmd.com/read/28652943/diverse-habitat-use-during-two-life-stages-of-the-critically-endangered-bahama-oriole-icterus-northropi-community-structure-foraging-and-social-interactions
#1
Melissa R Price, William K Hayes
Our ability to prevent extinction in declining populations often depends on effective management of habitats that are disturbed through wildfire, logging, agriculture, or development. In these disturbed landscapes, the juxtaposition of multiple habitat types can be especially important to fledglings and young birds, which may leave breeding grounds in human-altered habitat for different habitats nearby that provide increased foraging opportunities, reduced competition, and higher protection from predators. In this study, we evaluated the importance of three habitat types to two life stages of the critically endangered Bahama Oriole (Icterus northropi), a synanthropic songbird endemic to Andros, The Bahamas...
2017: PeerJ
https://www.readbyqxmd.com/read/28647586/graphic-depiction-of-bioinformatics-data
#2
EDITORIAL
Agustin Calatroni, Jeremy J Wildfire
No abstract text is available yet for this article.
June 21, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28644577/evidence-of-fuels-management-and-fire-weather-influencing-fire-severity-in-an-extreme-fire-event
#3
Jamie M Lydersen, Brandon M Collins, Matthew L Brooks, John R Matchett, Kristen L Shive, Nicholas A Povak, Van R Kane, Douglas F Smith
Following changes in vegetation structure and pattern, along with a changing climate, large wildfire incidence has increased in forests throughout the western U.S. Given this increase there is great interest in whether fuels treatments and previous wildfire can alter fire severity patterns in large wildfires. We assessed the relative influence of previous fuels treatments (including wildfire), fire weather, vegetation and water balance on fire severity in the Rim Fire of 2013. We did this at three different spatial scales to investigate whether the influences on fire severity changed across scales...
June 23, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28642628/particulate-air-pollution-from-wildfires-in-the-western-us-under-climate-change
#4
Jia Coco Liu, Loretta J Mickley, Melissa P Sulprizio, Francesca Dominici, Xu Yue, Keita Ebisu, Georgiana Brooke Anderson, Rafi F A Khan, Mercedes A Bravo, Michelle L Bell
Wildfire can impose a direct impact on human health under climate change. While the potential impacts of climate change on wildfires and resulting air pollution have been studied, it is not known who will be most affected by the growing threat of wildfires. Identifying communities that will be most affected will inform development of fire management strategies and disaster preparedness programs. We estimate levels of fine particulate matter (PM2.5) directly attributable to wildfires in 561 western US counties during fire seasons for the present-day (2004-2009) and future (2046-2051), using a fire prediction model and GEOS-Chem, a 3-D global chemical transport model...
October 2016: Climatic Change
https://www.readbyqxmd.com/read/28634718/mite-communities-acari-mesostigmata-in-young-and-mature-coniferous-forests-after-surface-wildfire
#5
Jacek Kamczyc, Cezary Urbanowski, Emilia Pers-Kamczyc
Density, diversity and assemblage structure of Mesostigmata (cohorts Gamasina and Uropodina) were investigated in Scots pine forests differing in forest age (young: 9-40 years and mature: 83-101 years) in which wildfire occurred. This animal group belongs to the dominant acarine predators playing a crucial role in soil food webs and being important as biological control agents. In total, six forests (three within young and three within mature stands) were inspected in Puszcza Knyszyńska Forest Complex in May 2015...
June 20, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28609467/land-cover-more-than-monthly-fire-weather-drives-fire-size-distribution-in-southern-qu%C3%A3-bec-forests-implications-for-fire-risk-management
#6
Jean Marchal, Steve G Cumming, Eliot J B McIntire
Fire activity in North American forests is expected to increase substantially with climate change. This would represent a growing risk to human settlements and industrial infrastructure proximal to forests, and to the forest products industry. We modelled fire size distributions in southern Québec as functions of fire weather and land cover, thus explicitly integrating some of the biotic interactions and feedbacks in a forest-wildfire system. We found that, contrary to expectations, land-cover and not fire weather was the primary driver of fire size in our study region...
2017: PloS One
https://www.readbyqxmd.com/read/28608756/effects-of-omalizumab-on-rhinovirus-infections-illnesses-and-exacerbations-of-asthma
#7
Ann Esquivel, William W Busse, Agustin Calatroni, Alkis G Togias, Kristine G Grindle, Yury A Bochkov, Rebecca S Gruchalla, Meyer Kattan, Carolyn M Kercsmar, G Khurana Hershey, Haejin Kim, Petra Lebeau, Andrew H Liu, Stanley J Szefler, Stephen J Teach, Joseph B West, Jeremy Wildfire, Jacqueline A Pongracic, James E Gern
RATIONALE: Allergic inflammation has been linked to increased susceptibility to viral illnesses, but it is unclear whether this association is causal. OBJECTIVE: To test whether omalizumab treatment to reduce IgE would shorten the frequency and duration of rhinovirus illnesses in children with allergic asthma. METHODS: The Preventative Omalizumab or Step-up Therapy for Severe Fall Exacerbations (PROSE) was a study of children with allergic asthma (6-17 years, n=478) from low-income census tracts in 8 U...
June 13, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28607839/gamebird-responses-to-anthropogenic-forest-fragmentation-and-degradation-in-a-southern-amazonian-landscape
#8
Fernanda Michalski, Carlos A Peres
Although large-bodied tropical forest birds are impacted by both habitat loss and fragmentation, their patterns of habitat occupancy will also depend on the degree of forest habitat disturbance, which may interact synergistically or additively with fragmentation effects. Here, we examine the effects of forest patch and landscape metrics, and levels of forest disturbance on the patterns of persistence of six gamebird taxa in the southern Brazilian Amazon. We use both interview data conducted with long-term residents and/or landowners from 129 remnant forest patches and 15 continuous forest sites and line-transect census data from a subset of 21 forest patches and two continuous forests...
2017: PeerJ
https://www.readbyqxmd.com/read/28606202/an-assessment-of-climate-change-impacts-on-los-angeles-california-usa-hospitals-wildfires-highest-priority
#9
Sabrina A Adelaine, Mizuki Sato, Yufang Jin, Hilary Godwin
Introduction Although many studies have delineated the variety and magnitude of impacts that climate change is likely to have on health, very little is known about how well hospitals are poised to respond to these impacts. Hypothesis/Problem The hypothesis is that most modern hospitals in urban areas in the United States need to augment their current disaster planning to include climate-related impacts. METHODS: Using Los Angeles County (California USA) as a case study, historical data for emergency department (ED) visits and projections for extreme-heat events were used to determine how much climate change is likely to increase ED visits by mid-century for each hospital...
June 13, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28600858/scale-dependent-effects-of-post-fire-canopy-cover-on-snowpack-depth-in-montane-coniferous-forests
#10
Jens T Stevens
Winter snowpack in dry montane regions provides a valuable ecosystem service by storing water into the growing season. Wildfire in coniferous montane forests has the potential to indirectly affect snowpack accumulation and ablation (mass loss) rates by reducing canopy cover, which reduces canopy interception of snow but also increases solar radiation and wind speed. These counteracting effects create uncertainty regarding the canopy conditions that maximize post-fire snowpack duration, which is of concern as montane regions across the western United States experience increasingly warm, dry winters with below-average snowpack...
June 9, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28592852/soil-respiration-of-the-dahurian-larch-larix-gmelinii-forest-and-the-response-to-fire-disturbance-in-da-xing-an-mountains-china
#11
Tongxin Hu, Long Sun, Haiqing Hu, David R Weise, Futao Guo
Despite the high frequency of wildfire disturbances in boreal forests in China, the effects of wildfires on soil respiration are not yet well understood. We examined the effects of fire severity on the soil respiration rate (Rs) and its component change in a Dahurian Larch (Larix gmelinii) in Northeast China. The results showed that Rs decreased with fire burning severity. Compared with the control plots, Rs in the low burning severity plots decreased by 19%, while it decreased by 28% in the high burning severity plots...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28575928/impact-of-dust-and-smoke-mixing-on-column-integrated-aerosol-properties-from-observations-during-a-severe-wildfire-episode-over-valencia-spain
#12
J L Gómez-Amo, V Estellés, C Marcos, S Segura, A R Esteve, R Pedrós, M P Utrillas, J A Martínez-Lozano
The most destructive wildfire experienced in Spain since 2004 occurred close to Valencia in summer 2012. A total of 48.500ha were affected by two wildfires, which were mostly active during 29-30 June. The fresh smoke plume was detected at the Burjassot measurement station simultaneously to a severe dust episode. We propose an empirical method to evaluate the dust and smoke mixing and its impact on the microphysical and optical properties. For this, we combine direct-sun measurements with a Cimel CE-318 sun-photometer with an inversion methodology, and the Mie theory to derive the column-integrated size distribution, single scattering albedo (SSA) and asymmetry parameter (g)...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28560620/-13-c-nmr-spectroscopy-characterization-of-particle-size-fractionated-soil-organic-carbon-in-subalpine-forest-and-grassland-ecosystems
#13
Yo-Jin Shiau, Jenn-Shing Chen, Tay-Lung Chung, Guanglong Tian, Chih-Yu Chiu
BACKGROUND: Soil organic carbon (SOC) and carbon (C) functional groups in different particle-size fractions are important indicators of microbial activity and soil decomposition stages under wildfire disturbances. This research investigated a natural Tsuga forest and a nearby fire-induced grassland along a sampling transect in Central Taiwan with the aim to better understand the effect of forest wildfires on the change of SOC in different soil particle scales. Soil samples were separated into six particle sizes and SOC was characterized by solid-state (13)C nuclear magnetic resonance spectroscopy in each fraction...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28548841/light-absorption-by-brown-carbon-in-the-southeastern-united-states-is-ph-dependent
#14
Sabrina M Phillips, Aleia D Bellcross, Geoffrey D Smith
Light-absorbing organic material, or "brown carbon" (BrC), can significantly influence the effect that aerosols have on climate. Here, we investigate how changing pH affects the absorption spectra of water-soluble BrC from ambient particulate matter smaller than 2.5 μm collected in Athens, Georgia, in the spring and fall of 2016, including samples from nearby wildfires. We find that absorption increases 10% per pH unit from pH 2 to pH 12 with a broad, featureless tail at visible wavelengths, where the largest fractional increase is also observed...
May 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28546560/potential-decline-in-carbon-carrying-capacity-under-projected-climate-wildfire-interactions-in-the-sierra-nevada
#15
Shuang Liang, Matthew D Hurteau, Anthony LeRoy Westerling
Ecosystem carbon carrying capacity (CCC) is determined by prevailing climate and natural disturbance regimes, conditions that are projected to change significantly. The interaction of changing climate and its effects on disturbance regimes is expected to affect forest regeneration and growth, which may diminish forest carbon (C) stocks and uptake. We modeled landscape C dynamics over 590 years along the latitudinal gradient of the U.S. Sierra Nevada Mountains under climate and area burned by large wildfires projected by late 21(st) century...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28538249/norovirus-and-clostridium-difficile-outbreaks-squelching-the-wildfire
#16
Ann Fisher, Louise M Dembry
PURPOSE OF REVIEW: Gastrointestinal outbreaks in the healthcare setting cause increased morbidity and mortality in an already vulnerable population. Optimization of infection prevention measures can be a challenge in healthcare settings. This review describes new literature that may change the traditional infection prevention approach to such outbreaks. RECENT FINDINGS: Asymptomatic carriers of both norovirus and Clostridium difficile can pose risk of transmission to others and the environment...
May 22, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28525551/who-among-the-elderly-is-most-vulnerable-to-exposure-and-health-risks-of-pm2-5-from-wildfire-smoke
#17
Jia Coco Liu, Ander Wilson, Loretta J Mickley, Keita Ebisu, Melissa P Sulprizio, Yun Wang, Roger D Peng, Xu Yue, Francesca Dominici, Michelle L Bell
Wildfires burn over 7 million US acres annually, according to the US Forest Service. Little is known regarding which subpopulations are more vulnerable to health risks from wildfire smoke, including fine particles. We estimated exposure to fine particles specifically from wildfires and associations between wildfire-specific fine particles and respiratory hospital admissions for subpopulations > 65 years in the Western US (2004-2009). Higher fractions of Blacks and people in urban counties and in California are exposed to > 1 smoke wave (high-pollution episodes from wildfire smoke) compared to other populations...
May 19, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28521386/remobilisation-of-industrial-lead-depositions-in-ash-during-australian-wildfires
#18
Liqin Wu, Mark Patrick Taylor, Heather K Handley
This study examined the recycling of lead (Pb) in ash from wildfires, its source and potential contribution to environmental contamination. Ash from wildfires was collected from four Australian sites following uncontrolled fires during 2012 to 2013 close to major urban populations in Sydney (New South Wales), Hobart (Tasmania) and Adelaide (South Australia). The samples were analysed for their total Pb concentration and Pb isotopic composition to determine the sources of Pb and the extent, if any, of industrial contamination and its recycling into the ecosystem...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28501609/return-on-investment-from-fuel-treatments-to-reduce-severe-wildfire-and-erosion-in-a-watershed-investment-program-in-colorado
#19
Kelly W Jones, Jeffery B Cannon, Freddy A Saavedra, Stephanie K Kampf, Robert N Addington, Antony S Cheng, Lee H MacDonald, Codie Wilson, Brett Wolk
A small but growing number of watershed investment programs in the western United States focus on wildfire risk reduction to municipal water supplies. This paper used return on investment (ROI) analysis to quantify how the amounts and placement of fuel treatment interventions would reduce sediment loading to the Strontia Springs Reservoir in the Upper South Platte River watershed southwest of Denver, Colorado following an extreme fire event. We simulated various extents of fuel mitigation activities under two placement strategies: (a) a strategic treatment prioritization map and (b) accessibility...
May 11, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28500791/fire-catalyzed-rapid-ecological-change-in-lowland-coniferous-forests-of-the-pacific-northwest-over-the-past-14-000-years
#20
Shelley D Crausbay, Philip E Higuera, Douglas G Sprugel, Linda B Brubaker
Disturbance can catalyze rapid ecological change by causing widespread mortality and initiating successional pathways, and during times of climate change, disturbance may contribute to ecosystem state changes by initiating a new successional pathway. In the Pacific Northwest of North America (PNW), disturbance by wildfires strongly shapes the composition and structure of lowland forests, but understanding the role of fire over periods of climate change is challenging, because fire-return intervals are long (e...
May 13, 2017: Ecology
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