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171.
Examining relationships between climate change and mental health in the Circumpolar North 总被引:1,自引:0,他引:1
172.
Mitchell Clara Quaglino María Cecilia Posner Victoria María Arranz Silvia Eda Sciara Andrés Angel 《Environmental science and pollution research international》2021,28(13):16140-16151
Environmental Science and Pollution Research - Plastic pollution and the numerous consequences it has on aquatic life have become a huge concern in recent years. While many studies have been... 相似文献
173.
Nikoloff Noelia Carranza Martin Ana C. Fabra Mariana C. Furnus Cecilia C. 《Environmental science and pollution research international》2021,28(23):29188-29199
Environmental Science and Pollution Research - The aim of this study was to evaluate the genotoxic and cytotoxic effects of amitraz (AMZ) on the primary culture of bovine cumulus cells (CC) and... 相似文献
174.
Cecilia Mattsson Petersen Per E O Berg Lars R?nneg?rd 《Waste management & research》2005,23(6):527-533
In order to decrease environmental impacts in waste management the choice of treatment method must be based on the characteristics of the waste. Present sampling procedures do not provide statistically representative samples of solid waste and this provides difficulties in characterization. The objective of this study was to develop a procedure for waste component analysis and sampling of waste after collection and at plant level. A further objective was to characterize the waste delivered to an incineration plant for physical and chemical properties and to determine the amounts of delivered waste that could be classified as biofuels and fossil fuels. The proportions of recyclables and hazardous waste were also examined. Samples were taken randomly from waste trucks and divided by square implementation. Statistical analysis of the results showed that the number of sub-samples could be decreased with only a moderate increase in the confidence interval. This means that future waste composition analyses could be made more efficient and thereby less expensive. The analysis of the waste delivered to the Lidk?ping incineration plant (Central Sweden) showed that 66.4% of the household waste was composed of biofuels and 21.3% of non-renewable combustibles, of which 40.3% were recyclables. In addition, 11.6% of the household waste was non-combustible and 0.6% hazardous waste. The heat value for the biofuels was 18.0-19.7 MJ kg(-1) dry mass (DM) and for the fossil fuels 28.2-33.9 MJ kg(-1) DM. The industrial waste consisted of 35.9% biofuels, 62.0% fossil fuels, 1.6% non-combustible and 0.5% hazardous waste. The heat value was 19.5 MJ kg(-1) DM for the biofuels and 31.4 MJ kg(-1) DM for the fossil fuels. 相似文献
175.
This paper explores the problem of China's ‘missing’ girls—estimated to run into many millions. It considers the impact of the underpinning Confucian value system in China that has produced a culture of son preference and which, together with China's compulsory family planning program and ‘one child policy’, has effectively established a ‘one son policy’. Discussion of the various means by which the birth or survival of daughters have traditionally been prevented provides the context for identifying the contribution of new sex selection procedures to the maintenance of son preference in contemporary Chinese society. The paper concludes that China's son preference is not simply a personal problem for the millions of ‘missing girls’ who were destined to live a shorter life and for the surviving girls who continue to face considerable discrimination simply because they are of the ‘wrong’ sex; it heralds a social and demographic disaster of major proportions for which neither the government nor the people of China appear to have the will or the means to forestall. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
176.
R. L. Miller J. F. Cruise E. Otero J. M. Lopez 《Journal of the American Water Resources Association》1994,30(2):271-282
ABSTRACT: The spatial distribution of suspended particulatematter (SPM) was estimated in Mayagüez Bay on the west coast of Puerto Rico by using traditional ship board measurements and remotely sensed data acquired over four days during January 1990. This effort was part of a joint project between NASA and the University of Puerto Rico to develop techniques to monitor the water quality of a Caribbean coastal zone. This paper presents the methods and algorithms developed to map and analyze short term changes in the source and spatial distribution of SPM in Mayagüez Bay by using remotely sensed data acquired by the Calibrated Airborne Multispectral Scanner (CAMS). A PC-based data acquisition system was developed to record continuous ship measurements of select in- water variables. Spectral reflectances derived from CAMS red and near-IR data were corrected for atmospheric effects and then used to generate maps of SPM. These maps displayed SPM plumes associated with the mouths of the bay's three river systems. Significant day-to-day differences in the spatial characteristics were observed, suggesting that changes in river discharge occurred. However, an analysis of estimated river discharge, sediment yield, local wind field, and thermal river plume indicates that observed sediment plumes result primarily from wind-driven resuspension events. 相似文献
177.
Alessandra Pugnetti Francesco Acri Luisa Alberighi Donato Barletta Mauro Bastianini Fabrizio Bernardi-Aubry Andrea Berton Franco Bianchi Giorgio Socal Cecilia Totti 《Chemistry and Ecology》2004,20(6):399-409
Taxonomic composition, biomass, primary production and growth rates of the phytoplankton community were studied in two stations in the NW Adriatic Sea on a seasonal basis, in areas characterized by differing hydrological and trophic conditions. The main differences between the two stations were quantitative rather than qualitative, most phytoplankton species being common to both stations. The effects of differing nutrient concentrations and plume spreading were evident. Biomass and primary production rates were significantly higher in the coastal station (S1), and the phytoplankton distribution in the water column was markedly stratified in S1 and more even in the offshore station (S3). However, chlorophyll a specific production, potential growth rate and production efficiencies were very similar in both stations, even when phosphorus concentrations were limiting. A discrepancy between potential and actual growth rate was observed: as a feature common to both stations, comparisons between potential and actual growth rates revealed that little carbon produced by phytoplankton accumulated as algal biomass; therefore, very high loss rates were estimated. 相似文献
178.
Landscape multifunctionality: a powerful concept to identify effects of environmental change 总被引:2,自引:0,他引:2
Janine Bolliger Michèle Bättig Justus Gallati Andreas Kläy Michael Stauffacher Felix Kienast 《Regional Environmental Change》2011,11(1):203-206
The interdisciplinary concept of landscape multifunctionality provides a suitable platform to combine or disentangle effects
of multiple environmental stressors acting on the landscape. The concept allows mapping of trade-offs, synergies, and priority
conflicts between individual landscape functions, thus providing easily accessible, hands-on means to communicate findings
of environmental research to decision makers and society. This rapid communication provides an overview of current developments
and potential future research avenues in landscape multifunctionality. 相似文献
179.
Lynne Van Herwerden J. Howard Choat Stephen J. Newman Matthieu Leray Grethe Hillersøy 《Marine Biology》2009,156(8):1595-1607
Here the population genetic structure of an ecologically and economically important coral reef fish, the coral trout Plectropomus leopardus, is investigated in the context of contemporary and historical events. Coral trout were sampled from four regions (six locations)
and partial mtDNA D-loop sequences identified six populations (Fst = 0.89209, P < 0.0001): Scott Reef and the Abrolhos Islands in west Australia; the Great Barrier Reef (GBR), represented by northern and
southern GBR samples; New Caledonia and Taiwan, with Taiwan containing two genetic lineages. Furthermore, this study identified
source and sink populations within and among regions. Specifically, the northern population in west Australia (Scott Reef)
was identified, as the source for replenishment of the Abrolhos population, whilst New Caledonia was a source for recruitment
to the GBR. Based on these insights from a single mtDNA marker, this study will facilitate the development of rational management
plans for the conservation of P. leopardus populations and therefore mitigate the risk of population declines from anthropogenic influences. 相似文献
180.
Human-induced global climate change presents a unique and difficult challenge to the conservation of biodiversity. Despite
increasing attention on global climate change, few studies have assessed the projected impacts of sea-level rise to threatened
and endangered species. Therefore, we estimated the impacts of rising sea levels on the endangered Lower Keys marsh rabbit
(Sylvilagus palustris hefneri) across its geographic distribution under scenarios of current conditions, low (0.3-m), medium (0.6-m), and high (0.9-m)
sea-level rise. We also investigated the impacts of allowing vegetation to migrate upslope and not allowing migration and
of two land-use planning decisions (protection and abandonment of human-dominated areas). Not surprisingly, under all simulations
we found a general trend of decreasing total potential LKMR habitat with increasing sea-level rise. Not allowing migration
and protecting human-dominated areas both tended to decrease potential LKMR habitat compared with allowing migration and abandoning
human-dominated areas. In conclusion, conservation strategies at multiple scales need to be implemented in order to reduce
the impact of global climate change on biodiversity and endangered species. At the regional level, managers must consider
land-use planning needs that take into account the needs of both humans and biodiversity. Finally, at the local scale those
agencies that are in charge of endangered species conservation and ecosystem management need to rethink static approaches
to conservation or else stand by and watch ecosystems degrade and species go extinct. This can be accomplished by bioclimatic
reserve systems where climatically underrepresented areas are included in conservation planning along with the standard concerns
of threat, opportunity, connectivity, and viability. 相似文献