Academic literature on the topic 'Ecosystem [MESH]'
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Journal articles on the topic "Ecosystem [MESH]"
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Pasic, Aljosa. "Governance Mesh Approach for Cybersecurity Ecosystem." Information & Security: An International Journal 53 (2022): 105–30. http://dx.doi.org/10.11610/isij.5308.
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Ferreira, Verónica, Arturo Elosegi, Scott D. Tiegs, Daniel von Schiller, and Roger Young. "Organic Matter Decomposition and Ecosystem Metabolism as Tools to Assess the Functional Integrity of Streams and Rivers–A Systematic Review." Water 12, no. 12 (December 15, 2020): 3523. http://dx.doi.org/10.3390/w12123523.
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Streams and rivers provide important services to humans, and therefore, their ecological integrity should be a societal goal. Although ecological integrity encompasses structural and functional integrity, stream bioassessment rarely considers ecosystem functioning. Organic matter decomposition and ecosystem metabolism are prime candidate indicators of stream functional integrity, and here we review each of these functions, the methods used for their determination, and their strengths and limitations for bioassessment. We also provide a systematic review of studies that have addressed organic matter decomposition (88 studies) and ecosystem metabolism (50 studies) for stream bioassessment since the year 2000. Most studies were conducted in temperate regions. Bioassessment based on organic matter decomposition mostly used leaf litter in coarse-mesh bags, but fine-mesh bags were also common, and cotton strips and wood were frequent in New Zealand. Ecosystem metabolism was most often based on the open-channel method and used a single-station approach. Organic matter decomposition and ecosystem metabolism performed well at detecting environmental change (≈75% studies), with performances varying between 50 and 100% depending on the type of environmental change; both functions were sensitive to restoration practices in 100% of the studies examined. Finally, we provide examples where functional tools are used to complement the assessments of stream ecological integrity. With this review, we hope to facilitate the widespread incorporation of ecosystem processes into bioassessment programs with the broader aim of more effectively managing stream and river ecosystems.
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Karimi, James D., Ron Corstanje, and Jim A. Harris. "Understanding the importance of landscape configuration on ecosystem service bundles at a high resolution in urban landscapes in the UK." Landscape Ecology 36, no. 7 (February 10, 2021): 2007–24. http://dx.doi.org/10.1007/s10980-021-01200-2.
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Abstract Context Landscape structure is thought to affect the provision of ecosystem service bundles. However, studies of the influence of landscape configuration on ecosystem service trade-offs and synergies in urban areas are limited. This study used Bayesian Belief Networks to predict ecosystem service trade-offs and synergies in the urban area comprising the towns of Milton Keynes, Bedford and Luton, UK. Objectives The objectives of this study were to test (1) a Bayesian Belief Network approach for predicting ecosystem service trade-offs and synergies in urban areas and (2) assess whether landscape configuration characteristics affect ecosystem service trade-offs and synergies. Methods Bayesian Belief Network models were used to test the influence of landscape configuration on ecosystem service interactions. The outputs of a Principal Component Analysis (PCA) on six ecosystem services and landscape configuration metrics were used as response and explanatory variables, respectively. We employed Spearman’s rank correlation and principal component analysis to identify redundancies between landscape metrics. Results We found that landscape configuration affects ecosystem service trade-offs and synergies. A sensitivity analysis conducted on the principal components showed that landscape configuration metrics core area (CORE) and effective mesh size (MESH) are strong influential determinants of ecosystem service trade-offs and synergies. Conclusions This study demonstrates that landscape configuration characteristics affect ecosystem service trade-offs and synergies and that a core set of metrics could be used to assess ecosystem service (ES) trade-offs and synergies. The findings may be relevant to planning and urban design and improved ecosystem management.
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Sotiriou, Effimia, and Margarita Arianoutsou. "Soil moisture effects on cellulose decomposition in a Mediterranean ecosystem of Attica, Greece." Israel Journal of Ecology and Evolution 55, no. 1 (May 6, 2009): 63–76. http://dx.doi.org/10.1560/ijee.55.1.63.
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Water is the most critical limiting factor for decomposition processes in Mediterranean climate ecosystems. The aim of this study was to investigate the effects of increased soil moisture levels upon cellulose mass loss in an eastern Mediterranean ecosystem. We used a split plot experimental design to evaluate the effect of seasonality on the decomposition process by manipulating water availability in situ during different seasons. Nylon litterbags of mesh size 20 μm and 1 mm were filled with cellulose filter paper and placed on the plots during each season. The treatment consisted of a systematic uniform watering of the plots with 7 L/m2/week. Litterbags were randomly removed from each plot on a monthly basis. Cellulose mass loss showed differences between treatment and control plots and between seasons but was significant only in the spring. Cellulose mass loss was significantly affected by irrigation treatment, season, and their interaction, while moisture seemed to be affected only by season. There was no significant difference in cellulose mass loss due to different mesh sizes.
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Eissenstat, David. "ROOT TURNOVER: METHODS OF ANALYSIS." HortScience 25, no. 9 (September 1990): 1176b—1176. http://dx.doi.org/10.21273/hortsci.25.9.1176b.
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Root turnover has been determined primarily in ecosystem studies with perennial vegetation since it is a key for understanding primary production and nutrient cycling. These topics have become of interest to agriculturalists as well. Apart from ecosystem-level questions, there has been limited study of the environmental factors that influence root death. Many techniques have been devised to estimate root turnover, each with its own set of limitations. In forest ecosystems, one of the most popular methods of estimating root production turnover is sequential biomass sampling. However, this method fails to account for the simultaneous production and decomposition of roots during active periods of net biomass increase. A second method is a mesh-bag technique, which estimates root production/turnover from the amount of new roots that grow into a mesh bag. A method that uses radiocarbon is one of the most accurate, since estimates of root turnover include losses by exudation, cortical cell sloughing, as well as root loss. A fourth method of estimating root turnover involves tracking the roots visible behind transparent glass or plastic. Ultimately, the choice of method depends to a large extent on the type of plants used in the investigation and resources available for study.
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Wang, Zhongqiu, Hao Tang, Liuxiong Xu, Jian Zhang, and Fuxiang Hu. "Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill (Euphausia superba)." Journal of Marine Science and Engineering 9, no. 4 (April 1, 2021): 372. http://dx.doi.org/10.3390/jmse9040372.
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Understanding the interactions between target species and netting is paramount for increasing the sustainability of trawling activities. The selectivity of the utilized netting depends on the sizes and opening angles of the mesh. The effects of the mesh size and mesh opening angle on the fishing selectivity of Antarctic krill (Euphausia superba) were assessed via micro-cosmos experiments. The results show that both the absolute abundance and the incidence of larger krill individuals passing through experimental panels are proportional to the utilized mesh size. Krill individuals larger than 35 mm passed through experimental panels at mesh opening angles larger than 50° for a 15 mm mesh size, 35° for a 20 mm mesh size and 20° for a 30 mm mesh size. Additionally, all L50 values increased with an increasing mesh size and an increasing mesh opening angle at the same mesh size. Furthermore, the selection range increased with an increasing mesh size and with an increasing mesh opening angle at the same mesh size. This paper provides scientific guidance for the choice of liner mesh sizes of krill trawl with the aim to improve fishing efficiency while minimizing fishing losses and potential negative ecosystem impacts from fisheries.
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Burns, J. H. R., D. Delparte, R. D. Gates, and M. Takabayashi. "UTILIZING UNDERWATER THREE-DIMENSIONAL MODELING TO ENHANCE ECOLOGICAL AND BIOLOGICAL STUDIES OF CORAL REEFS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-5/W5 (April 9, 2015): 61–66. http://dx.doi.org/10.5194/isprsarchives-xl-5-w5-61-2015.
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The structural complexity of coral reefs profoundly affects the biodiversity, productivity, and overall functionality of reef ecosystems. Conventional survey techniques utilize 2-dimensional metrics that are inadequate for accurately capturing and quantifying the intricate structural complexity of scleractinian corals. A 3-dimensional (3D) approach improves the capacity to accurately measure architectural complexity, topography, rugosity, volume, and other structural characteristics that play a significant role in habitat facilitation and ecosystem processes. This study utilized Structure-from-Motion (SfM) photogrammetry techniques to create 3D mesh models for several Hawaiian corals that represent distinct morphological phenotypes. The orthophotos and digital elevation models generated from the SfM process were imported into geospatial analysis software in order to quantify several metrics pertaining to 3D complexity that are known to affect ecosystem biodiversity and productivity. The 3D structural properties of the reconstructed coral colonies were statistically analyzed to determine if the each species represents a unique morpho-functional group. The SfM reconstruction techniques described in this paper can be utilized for an array of research purposes to improve our understanding of how changes in coral composition affect habitat structure and ecological processes in coral reef ecosystems.
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Guijarro, Beatriz, and Enric Massutí. "Selectivity of diamond- and square-mesh codends in the deepwater crustacean trawl fishery off the Balearic Islands (western Mediterranean)." ICES Journal of Marine Science 63, no. 1 (January 1, 2006): 52–67. http://dx.doi.org/10.1016/j.icesjms.2005.08.011.
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Abstract An analysis of 38 bottom trawl hauls at depths of 251–737 m off the Balearic Islands (western Mediterranean) during autumn 2002 and spring 2003 was used to compare the species and size selectivity of 40-mm diamond- and square-mesh codends under commercial conditions. There was no difference in the catch composition or the yield that could be attributable to mesh shape, although the percentage of total and commercial species discarded with a diamond mesh was higher than with a square mesh. At least in the short term, the escapement ratio and the economic loss with the diamond mesh were lower than with square mesh, but economic efficiency was no different between them. For all the main species compared, except one flatfish, size selectivity parameters were lower for the diamond-than for the square-mesh codend. Selectivity values for the one flatfish species were similar. From the results it is concluded that, within the context of precautionary management, introduction of a 40-mm square mesh in the codend could be an appropriate and plausible measure to improve the state of the resources exploited by the deepwater crustacean trawl fishery of the upper slope off the Balearic Islands, and to reduce the impact of the fishery on the ecosystem.
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Sagi, Nevo, José M. Grünzweig, and Dror Hawlena. "Burrowing detritivores regulate nutrient cycling in a desert ecosystem." Proceedings of the Royal Society B: Biological Sciences 286, no. 1914 (October 30, 2019): 20191647. http://dx.doi.org/10.1098/rspb.2019.1647.
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Nutrient cycling in most terrestrial ecosystems is controlled by moisture-dependent decomposer activity. In arid ecosystems, plant litter cycling exceeds rates predicted based on precipitation amounts, suggesting that additional factors are involved. Attempts to reveal these factors have focused on abiotic degradation, soil–litter mixing and alternative moisture sources. Our aim was to explore an additional hypothesis that macro-detritivores control litter cycling in deserts. We quantified the role different organisms play in clearing plant detritus from the desert surface, using litter baskets with different mesh sizes that allow selective entry of micro-, meso- or macrofauna. We also measured soil nutrient concentrations in increasing distances from the burrows of a highly abundant macro-detritivore, the desert isopod Hemilepistus reaumuri . Macro-detritivores controlled the clearing of plant litter in our field site. The highest rates of litter removal were measured during the hot and dry summer when isopod activity peaks and microbial activity is minimal. We also found substantial enrichment of inorganic nitrogen and phosphorous near isopod burrows. We conclude that burrowing macro-detritivores are important regulators of litter cycling in this arid ecosystem, providing a plausible general mechanism that explains the unexpectedly high rates of plant litter cycling in deserts.
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Boyero, Luz, Naiara López-Rojo, Javier Pérez, Alan M. Tonin, Francisco Correa-Araneda, Aaron Davis, and Richard G. Pearson. "Effects of gamma irradiation on instream leaf litter decomposition." Hydrobiologia 848, no. 21 (October 4, 2021): 5223–32. http://dx.doi.org/10.1007/s10750-021-04703-w.
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AbstractLeaf litter decomposition is a key process in stream ecosystems, the rates of which can vary with changes in litter quality or its colonization by microorganisms. Decomposition in streams is increasingly used to compare ecosystem functioning globally, often requiring the distribution of litter across countries. It is important to understand whether litter sterilization, which is required by some countries, can alter the rates of decomposition and associated processes. We examined whether litter sterilization with gamma irradiation (25 kGy) influenced decomposition rates, litter stoichiometry, and colonization by invertebrates after weeks of instream incubation within coarse-mesh and fine-mesh litterbags. We used nine plant species from three families that varied widely in litter chemistry but found mostly consistent responses, with no differences in decomposition rates or numbers of invertebrates found at the end of the incubation period. However, litter stoichiometry differed between irradiated and control litter, with greater nutrient losses (mostly phosphorus) in the former. Therefore, the effects of irradiation on litter chemistry should be taken into account in studies focused on stoichiometry but not necessarily in those focused on decomposition rates, at least within the experimental timescale considered here.
Dissertations / Theses on the topic "Ecosystem [MESH]"
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Campbell, Rose. "Tourbillons anticycloniques dans le golfe du Lion : Modélisation couplée physique-biogéochimique." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4118.
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L'étude de l'impact que les structures hydrodynamiques à mésoéchelle peuvent avoir sur la distribution spatiale des organismes planctoniques et le transport de matière entre la zone côtière et le large est essentielle à la compréhension du fonctionnement de l'écosystème planctonique dans l'océan côtier. L'influence des tourbillons anticycloniques et des processus physiques associés sur l'écosystème planctonique pélagique est examinée au moyen d'un modèle couplé physique-biogéochimie. Dans un premier temps, les sorties du modèle sont confrontées à des données in situ et satellitales afin de vérifier le réalisme du modèle. Pendant la majeure partie de la simulation, et plus particulièrement sur la partie ouest du golfe de Lion pendant la période estivale, l'erreur commise par le modèle sur l'estimation de la chlorophylle de surface (proxy du phytoplancton) est inférieure à celle donnée par le calcul issu de la télédétection. Ensuite, la distribution du plancton en présence d'un tourbillon a été étudiée. Dans les sorties du modèle, un filament avec une forte concentration en chlorophylle est systématiquement observé sur le bord nord/nord-est de la structure, est confirmé par des données satellitales. Enfin, grâce à une simulation longue sur la période 2011-2004, plusieurs tourbillons ont été comparés du point de vue de leur impacts sur les échanges entre la côte et le large de matière et plancton. L'intensité et la direction de ces échanges sont hétérogènes et dépendent des forçages physiques qui ont donné lieu à la génération de ces tourbillonsThe role that mesoscale physical structures play in driving plankton community shifts and transporting matter is key to the understanding of food web dynamics at the regional scale
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NGURAH, NYOMAN WIADNYANA. "Estimation du transfert de matieres entre le reseau microbien pelagique et les consommateurs meso- et macroplanctoniques ecosysteme oligotrophe (mer ligure)." Paris 6, 1991. http://www.theses.fr/1991PA066594.
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Les recherches concernent quatre directions principales: (1) etude experimentale d'ingestion preferentielle des copepodes sur le micro-zooplancton; (2) suivi temporel des rations microzoo- et microphyto-planctoniques des copepodes en concentration in situ; (3) etude experimentale de l'effet d'une nourriture microzooplanctonique sur la ponte des copepodes; (4) estimation de l'impact des salpes sur les peuplements microbiens. Nourris avec des melanges microzooplancton-micro-phytoplancton, les copepodes semblent preferer le microzooplancton au phytoplancton. L'etude in situ montre que les variations de la disponibilite relative du microzooplancton sont correlees positivement avec la variation des copepodes. Ces resultats suggerent une dependance du developpement des copepodes par rapport a l'abondance du microzooplancton. Les experiences sur la ponte chez le copepode calanoide temora stylifera montrent une amelioration significative de la ponte en presence du microzooplancton. L'analyse des contenus des pelotes fecales chez les salpes montre l'existence de proportions importantes de cellules intactes qui peuvent etre deviees vers le fond des oceans
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Cogo, Michelle Cristine. "O papel dos sedimentos em suspensão no metabolismo de rios de micro e meso-escala no estado de Rondônia." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/91/91131/tde-01072005-144028/.
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As águas superficiais da Amazônia, que englobam, dentre outros, rios das mais variadas ordens, desde pequenos igarapés, até o rio Amazonas, um dos maiores do mundo, são um componente importante do funcionamento deste ecossistema de escala continental. Um paradigma acerca dos sistemas fluviais é que estes integram os processos que ocorrem em suas bacias de drenagem e, portanto, alterações na cobertura vegetal e nos usos da terra, podem interferir diretamente nos parâmetros físicos e químicos dos compartimentos aquáticos. Algumas áreas da Amazônia, como o estado de Rondônia, por exemplo, têm sofrido alterações substanciais nas suas bacias de drenagem e as conseqüências destas nos sistemas fluviais ainda são pouco compreendidas. Sabe-se que a conversão de florestas em pastagens, o tipo de alteração mais comum nos ecossistema de Rondônia, resulta na compactação dos solos e no aumento da erosão. Ao mesmo tempo, diversos estudos têm demonstrado que os sedimentos em suspensão, carreados nos rios, podem ser importantes fontes de carbono e outros nutrientes limitantes para o metabolismo aquático. Com base nestas premissas, este estudo visou avaliar a importância dos sedimentos em suspensão grossos (maiores que 63 µm) e finos (menores que 63 µm e maiores 0,1 µm) no metabolismo de alguns rios de Rondônia, sob diversas coberturas e usos da terra. Para tal, as concentrações destes sedimentos foram artificialmente aumentadas em amostras incubadas no escuro, nas quais os consumos de oxigênio indicaram as taxas respiratórias. No caso dos sedimentos em suspensão finos, observaram-se aumentos nas taxas respiratórias em praticamente todos os casos nos quais suas concentrações foram aumentadas. Os sedimentos em suspensão grossos, por outro lado, somente favorecem aumentos nas taxas respiratórias nos períodos de maiores precipitações. Estes resultados relacionam-se com a composição dos sedimentos. Sedimentos em suspensão finos, por sua maior capacidade de adsorver substâncias orgânicas e nutrientes, constituem uma fonte permanente de substrato para o metabolismo aquático. Sedimentos em suspensão grossos, por outro lado, somente carreiam fração substancial de material orgânico durante o período de maiores precipitações, quando os solos são lavados pelas enxurradas. Apesar destas diferenças no papel relativo destas duas frações do material particulado no metabolismo destes rios, fica evidente que o aumento da erosão pode acarretar mudanças significativas no metabolismo dos sistemas fluviais da Amazônia.Amazonian surface waters, encompassing rivers of distinct orders, from small streams to one of the largest of the world, the Amazon, are important components of the functioning of this continental-scale ecosystem. A paradigm about fluvial systems is that they integrate the processes that occur at their watersheds and, therefore, changes in land use/cover may directly interfere on physical and chemical parameters of the aquatic compartments. In some areas of the Amazon, such as in the state of Rondonia, for example, the landscape has been significantly altered, and the consequences of these changes are still poorly understood. It is well know that the conversion of forests into pastures, a common type of land use change in Rondonia, can cause the compactation of soils and increased erosion rates. At the same time, several studies have demonstrated that suspended sediments can be important sources of carbon and other nutrients to river metabolism. Based on those assumptions, this study aimed the evaluation of the importance of coarse (larger than 63 µm) and fine (smaller than 63 µm and larger than 0,1 µm) suspended sediments on the metabolism of some rivers of Rondonia. This assessment was made through incubations in the dark of samples enriched in sediments, in which the consumption of oxygen indicated respiration rates. In the case of fine suspended sediments, most incubated samples showed increased respiration rates as a result of the concentration of these particles. Coarse suspended sediments, on another side, only favor the increase in respiration rates during the high water period. These results are related to the composition of these sediments. Fine suspended sediments constitute a constant substract for the aquatic metabolism, as a result of their larger surface area and capacity for absorving organic substances and nutrients. Coarse sediments, however, only favor respiration during the high water period, when overland flow carries organic debris from land into the water systems. Although these two fractions of suspended sediments have different relative roles in the metabolism of rivers, it becomes evident from this data that increasing the erosion in the Amazon may affect significantly the metabolism of fluvial systems in this region.
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Jewell, Mark. "Diversit?? des arbres, interactions a??riennes et souterraines et d??composition des feuilles mortes." Mémoire, Universit?? de Sherbrooke, 2013. http://savoirs.usherbrooke.ca/handle/11143/75.
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R??sum?? : La d??composition des liti??res v??g??tales a ??t?? d??crite comme ??tant la deuxi??me plus importante fonction ??cosyst??mique sur terre, apr??s la productivit?? primaire. Alors que la photosynth??se fournit les apports ??nerg??tiques ?? la plupart des cha??nes alimentaires, la d??composition recycle les nutriments, permet leur utilisation future par d???autres organismes et relargue dans l???atmosph??re le carbone fix?? photosynth??tiquement. Dans un contexte de changement climatique, un grand int??r??t est port?? sur la d??composition des liti??res, car il s???agit, ?? l?????chelle globale, de la plus grande source d?????mission de CO[indice inf??rieur 2] dans l???atmosph??re. Les taux de d??composition des liti??res sont principalement d??termin??s par trois facteurs: les variables climatiques, la structure des communaut??s de d??composeurs et les propri??t??s chimiques et physiques de la liti??re. La structure de la communaut?? v??g??tale h??te dans laquelle se produit la d??composition et d???o?? provient la liti??re peut influencer l???ensemble de ces trois facteurs. Des changements dans la structure de la communaut?? v??g??tale pourraient donc affecter les futurs taux de d??composition et modifier significativement les dynamiques globales du carbone. Malgr?? cela, la communaut?? h??te est rarement prise en compte dans les ??tudes sur la d??composition des liti??res. Des exp??riences enl??vent souvent la liti??re de son environnment naturel de d??composition, mesurant la d??composition des liti??res ?? partir de monolithes ou de microcosmes en laboratoire, afin de contr??ler les variations ind??sirables des propri??t??s du sol. Dans ce m??moire, j?????tudie les effets de plusieurs propri??t??s fonctionnelles de la communaut?? v??g??tale h??te sur les taux de d??composition des liti??res et leur contribution ?? la respiration du sol. En utilisant une plantation exp??rimentale d???arbres qui permet de manipuler la structure de leur communaut??, je teste l???effet de l???identit?? fonctionnelle des arbres, des esp??ces et de la diversit?? fonctionnelle, ainsi que des interactions entre d??composeurs et arbres sur ces processus ??cosyst??miques. La d??composition des liti??res et la respiration du sol sont li??es aux propri??t??s fonctionnelles des plantes. La d??composition des liti??res est bien pr??dite par les valeurs moyennes de traits fonctionnels des liti??res, mais plus faiblement corr??l??e ?? la diversit?? sp??cifique. D???apr??s mes r??sultats, le nombre d???esp??ces en m??lange de liti??res ne constitue pas un facteur important pour la d??composition, ?? cause des interactions globalement idiosyncratiques entre types de liti??res. Cependant, l???augmentation conjointe de la diversit?? fonctionnelle des m??langes d???esp??ces en liti??res et de la communaut?? d???arbres-h??tes acc??l??re les taux de d??composition et la respiration du sol. Les premi??res phases de d??composition de liti??res en surface ne sont que faiblement affect??es par la diversit?? des plantes, alors que pour la respiration du sol, qui prend en compte les derni??res phases de d??composition de liti??re et de mati??re organique du sol, la diversit?? est la propri??t?? fonctionnelle de plantes qui fournit le meilleur pouvoir de pr??diction. De plus, j???ai trouv?? que les apports sp??cifiques de liti??res ?? long terme pouvaient cr??er des conditions qui favorisent la d??composition des liti??res native et pouvaient modifier l???effet de la diversit?? des arbres sur la d??composition. J???attribue cet effet aux r??troactions entre la liti??re et les organismes d??composeurs du sol. Ce travail de recherche fournit une nouvelle perspective sur les effets des changements de structure de communaut?? foresti??re sur les processus de d??composition. La compr??hension de ces effets est n??cessaire pour pr??dire les taux de d??composition de liti??res et les dynamiques globales du carbone. // Abstract : The decomposition of plant litter has been described as the second most important ecosystem function for sustaining life on earth, after primary productivity. Whereas photosynthesis provides the energy input for most food chains, decomposition recycles nutrients for future use by other organisms and returns photosynthetically fixed carbon back to the atmosphere. In the context of climate change, litter decomposition is of specific interest because it represents one of the largest sources of CO[subscript 2] to the atmosphere globally. Rates of litter decomposition are largely determined by three factors: climatic variables, the structure of the decomposer community, and the chemical and physical properties of the litter. The structure of the host plant community under which decomposition takes place and from which the litter is derived can influence all three of these factors. Therefore, any systematic changes in plant community structure could affect future decomposition rates and significantly alter global carbon dynamics. Despite this, the host plant community is rarely considered in litter decomposition studies. Experiments often remove litter from its natural decomposition environment, instead measuring decomposition of litter in common garden settings and laboratory microcosms to control for unwanted variation in soil properties. In this thesis I investigate the effect of several functional properties of the host plant community on rates of litter decomposition and its contribution to soil respiration. Using an experimental tree plantation that manipulates tree community structure, I test the effect of tree functional identity, species and functional diversity, and tree-decomposer interactions on these ecosystem processes. Both litter decomposition and soil respiration were related to plant functional properties. Litter decomposition was best predicted by average-values of litter functional traits and was poorly related to species diversity. The number of species in a litter mixture does not seem to be important for decomposition, as interactions between litter types were idiosyncratic. However increasing the functional diversity both of mixed-species litter and of the host tree community accelerated rates of litter decomposition and soil respiration. Early stages of surface litter decomposition were only marginally affected by plant diversity. In contrast, diversity was the best predictor of soil respiration, which includes latter stages of litter and soil organic matter decomposition. Furthermore, I found that specific repeated litter input to the soil can result in conditions that favour the decomposition of the long-term litter type and can mediate the effect of tree diversity on decomposition. I attribute this effect to feedbacks between the litter and soil decomposer organisms. This research provides insight into the effect of changing forest community structure on decomposition processes. Such an understanding is necessary to predict future rates of litter decomposition and global carbon dynamics.
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Pangahas, Nina Natividad. "Ecological restoration of the Philippine dipterocarp forest ecosystems : the role of spatial, meso-scale climatic modelling." Phd thesis, 2003. http://hdl.handle.net/1885/151167.
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Nel, Jacoba Elizabeth. "Ontwikkeling van 'n reflekterende span met 'n ekosistemiese benadering tot gesinsterapie." Diss., 1999. http://hdl.handle.net/10500/15600.
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Afrikaans textBesorgdheid het in die gemeenskap bestaan oar die toenemende getalle kinders wat binne die stedelike konteks van Pretoria op straat leef en werk. Hierdie navorsing is onderneem om die behoeftes van die kinders aan te spreek en om alternatiewe wyses te vind om met hulle te werk. 'n Konteks is geskep sodat na hulle stemme geluister kon word. nag 'n alternatief tot "tradisionele" vorme van gesinsterapie bruikbaar is, op sekere voorwaardes, soos aangedui in hoofstuk vier. Sleutelwoorde: reflekterende span; "straatkinders"; ekosistemiese benadering; ekologie; epistemologie; konstruktivisme; objektivisme; kubernetika; sisteemteorie; mikro-, meso- en makrosisteme; sirkulere en liniere punktuasie Ekosistemiese beginsels is aanvanklik benut, maar was nie vir die span wat saamgewerk het, betekenisvol nie. 'n Gevallestudie-ontwerp was nuttig om die ontwikkeling en "opleiding" van die span wat sou saamwerk, te beskryf, asook die benutting van ekosistemiese beginsels tydens dienste aan die "straatkinders" en hulle gesinne by ltumeleng. Die navorsing het aangedui dat 'n ekosistemiese benadering tot gesinsterapie as
The community showed concern about the increasing number of children living and working on the streets within the urban context of Pretoria. This researchwas undertaken to address the needs of these children and to find alternative ways of working with them. A context was created so that their voices could be heard. Ecosystemic principles were initially used, but were not meaningful to the team who worked together. A case study design proved useful in developing and "training" of the team who would be working together, as well as applying ecosystemic principles while making services available to the "street children" and their families in ltumeleng. The research indicated that an ecosystemic approach to family therapy could be used as an alternative to "traditional" forms of family therapy, subject to certain conditions, as stipulated in Chapter Four.
Social Work
M.A. (Sosiale Wetenskappe (Geestesgesondheid))
Books on the topic "Ecosystem [MESH]"
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Lovelock, James. Gaia: A new look at life on earth. Oxford [Oxfordshire]: Oxford University Press, 1987.
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Lovelock, James. Gaia: A new look at life on earth. Oxford: Oxford University Press, 2000.
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Lovelock, James. Gaia: The practical science of planetary medicine. London: Gaia Books, 1991.
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Lovelock, James. Gaia: A new look at life on earth. Oxford: Oxford University Press, 1995.
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Lovelock, James. Gaia, una nueva visio n de la vida sobre la tierra. Barcelona]: Orbis, 1986.
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Lovelock, James. Gaia: A new look at life on earth. Oxford: Oxford University Press, 1987.
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Lovelock, James. Gaia: Practical Science of Planetary Medicine. Allen And Unwin, 1991.
Find full textBook chapters on the topic "Ecosystem [MESH]"
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Delavergne, Marie, Ronan-Alexandre Cherrueau, and Adrien Lebre. "A Service Mesh for Collaboration Between Geo-Distributed Services: The Replication Case." In Agile Processes in Software Engineering and Extreme Programming – Workshops, 176–85. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-88583-0_17.
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AbstractEdge computing is becoming more and more present, with sites geo-distributed around the globe. Applications on these infrastructures must be able to manage the latency and disconnections inherent to their distribution. One way to deal with these concerns could be to deploy one entire instance of the application per site and use a service mesh to manage the collaboration between the geo-distributed instances. More precisely, we propose to reify the location of application instances in REST requests and allow redirections between these requests thanks to a dedicated language and a service mesh allowing three types of collaborations. This paper focuses on the replication of a resource between multiple instances. Though it is still a work in progress, we demonstrated the relevance of our approach in the OpenStack ecosystem.
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Chandler, Jennifer D. "Innovation and Diffusion at the Meso Level." In Innovation, Social Networks, and Service Ecosystems, 65–94. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47797-4_4.
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Serafimovich, Andrei, and Christoph Thieme. "Comparison of Meso-Scale Modelled Fluxes and Measurements." In Energy and Matter Fluxes of a Spruce Forest Ecosystem, 437–57. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49389-3_18.
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Øiestad, Victor. "Specific Application of Meso- and Macrocosms for Solving Problems in Fisheries Research." In Enclosed Experimental Marine Ecosystems: A Review and Recommendations, 136–54. New York, NY: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-6401-6_8.
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Proff, Harald, Claudia Ahrens, Wencke Neuroth, Heike Proff, Florian Knobbe, Gregor Szybisty, and Stefan Sommer. "Nutzung der Chancen der Digitalisierung durch digitale Leistungen – Technologien und Prozesse, Angebote und Geschäftsmodelle verbessern oder verändern." In Accelerating Digitalization, 27–43. Wiesbaden: Springer Fachmedien Wiesbaden, 2021. http://dx.doi.org/10.1007/978-3-658-31456-9_3.
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ZusammenfassungWir wollen in diesem Kapitel zeigen, wie Unternehmen die Chancen der Digitalisierung nutzen können: durch Verbesserung oder Veränderung zunächst der unternehmerischen Prozesse (z. B. durch die digitale Fabrik bzw. Industrie 4.0) und der dahinter liegenden digitalen Technologien (z. B. ein mehrschichtiges Fertigungsmanagement, MES), als den „Digital Activities“. dann der Angebote, d. h. Produkte und Dienstleistungen (z. B. ein Angebot von Digitalkameras), die Unternehmen in Geschäftsmodelle – einzeln umsetzen oder verbindlich ausgerichtet auf einen definierten Kreis von Partnern (in einem Ecosystem) - umsetzen, als den „Digital Businesses“. durch radikale Veränderungen der Leistungen, die sehr viel weitreichender sind, als eine Verbesserung oder eine inkrementelle Veränderung der Technologien, Prozesse, Angebote und Geschäftsmodelle. Denn sie bedeuten die Entwicklung völlig neuer Geschäftsmodelle bzw. Geschäftsmodellinnovationen, die sich als neue Wege des Denkens auf völlig neue Angebote am Markt beziehen und auf neuartige Technologien und Prozesse stützen. Damit ermöglicht die Digitalisierung eine Neuausrichtung der unternehmerischen Leistungen (Digital Performance) und treibt die Transformation von Unternehmen.Dabei gilt, dass die Gewinnwirkung umso höher ist, je stärker Unternehmen dadurch Technologien, noch stärker Prozesse, mehr noch Angebote und am meisten Geschäftsmodelle verändert werden.
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Øiestad, Victor. "Specific application of meso- and macrocosms for solving problems in fisheries research." In Enclosed Experimental Marine Ecosystems: A Review and Recommendations: A Contribution of the Scientific Committee on Oceanic Research Working Group 85, 136–54. Washington, D. C.: American Geophysical Union, 1990. http://dx.doi.org/10.1029/ce037p0136.
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De Toro, Pasquale, and Silvia Iodice. "Urban Metabolism Evaluation Methods: Life Cycle Assessment and Territorial Regeneration." In Regenerative Territories, 213–30. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-78536-9_13.
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AbstractUrban Metabolism (UM) is a scientific phenomenon that comprises individual processes taking place in all cities at different spatial and temporal scales and that is based on the principle of conserving mass and energy. Analysing the metabolism of a city allows one to evaluate the impacts of urban functioning, taking into account the flows of energy, water, nutrients and waste and the materials in general that circulate within a city, and contributing to a multidimensional assessment of sustainability. Many authors have explored the phenomenon of UM and experimented with indices and evaluation methods, but there is still no consensus on the best assessment methods to use.The present paper presents an overview of UM assessment methods, particularly Life Cycle Assessment (LCA) and its possible uses for supporting territorial regeneration. A literature analysis is conducted of the evolution of this method in relation to scales that are different from the single product scale. LCA aims to assess the environmental impacts of the life cycles of single industrial products and services, but over the years it has gained increased attention in the urban planning field. Life cycle, in general, refers to all the phases that characterise the life of elements, comprising not only a single product, but extending this concept also to the wider territorial system. The concept of the life cycle of territorial systems is related to the evolution of the territory as a heritage and as a system of environmental, social and economic resources and services, whose transformation is linked to the different forms of governance. The territorial life cycle is formed by interconnected phases, referred to as the sub-systems of the resources and performance of a territory, that follow a predefined plan scenario. Consequently, the life cycle concept can be compared to that of change and it is closely linked to the analogy of ecosystems and the urban environment, which views the city as an entity in constant transformation.In the last few years, there has been an increase in activity in the LCA application field, with the introduction of scale variations and of the distinction between applications at the level of the single product and applications at the meso and macro levels. In other words, this approach is evolving and applications and hypotheses involving scales different from the micro scale are becoming popular.In this regard, extending the LCA tool to a meso perspective on a municipal scale or an individual urban district scale could prove to be a valid tool for assessing the sustainability of a territory with regard to the metabolic flows and the evolution of its life cycle.
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J. F. Goreau, Thomas. "Perspective Chapter: Electric Reefs Enhance Coral Climate Change Adaptation." In Corals - Habitat Formers From the Shallow to the Deep [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107273.
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Survival of coral reefs from globally rising temperature, sea level, and pollution requires new regeneration methods that greatly increase coral growth rates, survival, and resistance to accelerating extreme environmental stresses. Electric (“Biorock”) limestone reefs can be grown in any size or shape, get stronger with age, grow back if damaged, and increase settlement, growth, survival, and stress resistance of all marine organisms examined. Electrified corals survive repeated severe bleaching events when over 90% of corals on nearby reefs die. Electric reefs are open mesh frameworks with more vertical levels of holes and surfaces than natural reefs, which can be grown in places where natural reefs cannot grow due to lack of substrate or unsuitable physical and chemical conditions. They strongly enhance reef physical structure, wave absorption, ecological function, biodiversity, productivity, and habitat and ecosystem services including shore protection, sand generation, and fisheries habitat, even at severely degraded sites where no natural regeneration takes place. Electric reefs, optimized for local needs, provide superior cost-effective options for shore protection, conservation, sustainable mariculture, and regeneration of coastal ecosystems that grow to keep pace with sea level rise. They will provide an essential tool to develop sustainable “Blue Economies.”
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"Challenges for Diadromous Fishes in a Dynamic Global Environment." In Challenges for Diadromous Fishes in a Dynamic Global Environment, edited by Michael J. W. Stokesbury, Michael J. Dadswell, Kim N. Holland, George D. Jackson, W. Don Bowen, and Ronald K. O’Dor. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781934874080.ch20.
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<em>Abstract</em>.-Tagging fish with electronic tags can provide information on movement, migration, behavior, and stock structure while diadromous species are at sea. The state of the art technology for tracking fishes in the marine environment includes two families of tags. Archival tags store data and either relay them to satellites or require recapture for interrogation. Low return rates for diadromous species make these tags very expensive to use. A second type, acoustic tags, sends signals to passive receivers. Information is collected from the fish only when it is within range of a receiver. Technology is now being developed to mesh these tags into a fully integrated tag that will permit archived data to be transmitted acoustically over multiple frequencies to receivers allowing data retrieval without recapturing the animal. The new technology includes a "business card" tag that is a miniaturized receiver coupled with a coded pulse transmitter. These tags will exchange and record individual-specific codes when two animals carrying them come within acoustic range of each other, which will allow data from many animals to be moved ashore through few animals. These devices would be ideal for quantifying the degree of school fidelity (or, conversely, mixing) or the degree of at sea interaction of fishes from different river systems and provide ecological information to enhance management in an ecosystem approach to fisheries.
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McNeal, A. W., M. Cole, T. S. Galloway, C. Lewis, A. Watts, S. Wright, R. Z. Miller, and P. Lindeque. "Are Smaller Microplastics Underestimated? Comparing Anthropogenic Debris Collected With Different Mesh Sizes." In Fate and Impact of Microplastics in Marine Ecosystems, 163. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-12-812271-6.00165-4.
Full textConference papers on the topic "Ecosystem [MESH]"
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Abhijeet, Sampriti Basu, and Dhruv Goyal. "Single-Gateway Multi-Node Mesh Network for a Connected Electric Vehicle Ecosystem." In 2020 5th International Conference on Communication and Electronics Systems (ICCES). IEEE, 2020. http://dx.doi.org/10.1109/icces48766.2020.9137958.
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Lohokare, Jay, and Reshul Dani. "An Intelligent cloud ecosystem for disaster response and management leveraging opportunistic IoT mesh networks." In 2021 International Conference on Information and Communication Technologies for Disaster Management (ICT-DM). IEEE, 2021. http://dx.doi.org/10.1109/ict-dm52643.2021.9664137.
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Quinn, Paul. "How Data Product and Mesh Thinking can Accelerate Your Digital Transformation Strategy and Adoption of the OSDU Data Platform." In International Petroleum Technology Conference. IPTC, 2022. http://dx.doi.org/10.2523/iptc-22089-ms.
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Abstract The Drive for Digital Transformation Today's Energy Industry has a multitude of challenges – from ensuring that existing assets are used to their maximum potential to incorporating new ways of working and New Energy sources whilst adapting to and adopting constantly changing regulatory and environmental regulatory concerns. This is on top of the traditionally strong concerns of operating at scale, safety and the use (and reuse) of assets that have been established over a significant period of time. This is in the midst of a transformation happening across all of industry. The new industrial revolution in data, analytics and AI has meant that there is both significant opportunities and pressure to address these challenges and concerns using new and novel, tools, technologies and techniques. From a company perspective this means that there may be a focus within these new areas to attempt to deliver increased efficiency, new information or increased value. However, underpinning this there must be a focus on ensuring that foundational capabilities are in place to provide the safe, reliable and agile environment in which this digital transformation can occur. There are a number of ways of thinking about data and its use within an organisation that may make the goals and expectations of a digital transformation programme more achievable. This is both based on emerging and established best practises for using data within the IT development community, which focus on how data must be protected and developed as a valuable and, crucially, usable asset within a company. Within systems projects there is also the approach of reusing proven, field tested systems and components (COTS). Through the reuse of these Energy Industry building blocks, operators can focus instead on more company-specific value-adding digitalisation activities and attempt to move up this value chain by looking towards efforts that enable innovation or provide competitive advantage instead of duplicating effort where there exists coordination (or a de facto standard) across the industry. The OSDU Data Platform cross Energy Industry collaborative initiative to deliver foundational data capabilities and also the provision of common data definitions, ways of working and common functionality on top that data for multiple disparate domains in the industry. This will allow operators, system integrators, independent software vendors, and application developers to work with data in a consistent manner and give this ecosystem the ability to build value adding tools, platforms and apps against. The OSDU Data Platform can therefore deliver key capabilities within a digital transformation roadmap and allow operators to focus on differentiating capabilities. This paper explains, from a high level, how the OSDU Data Platform can be used in conjunction with IT best practices to accelerate digital transformation.
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De Sousa Drumond, Jose David, and Georgia Kotsiopoulou. "Building an Effective Ecosystem for an Integrated Community of Practice and Frustration-Free Technical Knowledge Hub that Maximizes Engagement and Participation of Local and Field Resources Across Multiple Operating Countries." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/210844-ms.
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Abstract Developing local resources and effectively transferring knowledge among young and seasoned practitioners, are key elements to enable the continuous creation of value in a transitioning energy market where sustainability, diversity and equity are in the spotlight. This paper presents the strategies employed to develop an integrated ecosystem within a Technical CoP, and the analytical criteria used for the record-time deployment of an almost cost-free and massive Knowledge Hub, resulting in an effective community-wide engagement. The current global challenges, and the need for transformation driving our industry, requires the development of new and cost-effective ways to ensure the training and development of the maximum number of resources. In this context the focus of this work was the creation of a Highly Integrated Ecosystem between two familiar and company-wide used platforms. A detailed blueprint identifying the components and interfaces required to link Exchange, Support, and a comprehensive Knowledge Hub was developed. Ice-breaking, Collaboration, Volunteering and Branding elements were also successfully integrated. Curation and Completeness criteria was developed ensuring Learning Objects remained diverse, relevant, and up-to-date. Navigability, Mesh Interconnection between objects, the selection of diverse learning approaches in the curation and cataloging, and a friendly "frustration-free" visualization of detailed attributes, proved extremely successful in engaging the whole Community of Practice. Learning Elements embedded include: University Lectures, Models, Simulations, On-Demand Webinars, How-to-Demos, Animations, Conference Presentation, and Self-Assessment Tools, and CBT modules. Current topics include: Control & Optimization, Functional Safety, Automation, Digitalization, Industrial CyberSecurity, Process and Production Equipment Troubleshooting, Condition Monitoring, and others with high impact to the business. Use of Analytical tools, detailed KPIs, and of dashboards to analyze the depth and completeness, Gaps and ID learning actions allowed for an extremely efficient and short time for the deployment, and for the growth of the newly created and continuously evolving Knowledge Hub. In just 3 months the Knowledge Hub grew to have 1000+, highly job-relevant, Learning Elements, and the visits and the average time invested on the learning site by users surpassed 5x-10x what was being observed in all other CoPs that employed a more traditional approach to both CoPs and Learning. The paper explores specific examples of novel and exceptionally successful strategies and elements that were used in the design and implementation of the integrated ecosystem for exchange and learning. Analytical tools, Subject Matter Expert crowdsourcing, active engagement, lead and moderation of the platform allowed the creation of a Knowledge Hub exclusively composed of high quality, relevant and free learning opportunities. Sustained grow indicators include +112% of Active Users, +745% on Traffic/Posts, +52% in Knowledge Contributions.
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Takagi, Tsutomu, Takashi Shimizu, Katsuya Suzuki, and Holger Korte. "Using a Netting Geometry Simulator to Develop Smart Fishing and Smart Gear." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29658.
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As fishing gear consists mainly of netting and rope, and lacks a definite geometry of its own, external forces acting on the netting and other rigging determine its geometry. The underwater geometries and loads of most fishing gear cannot be grasped in detail. However, the versatile simulation technique that we have developed for fishing gear allows us to understand the physical properties of dynamic fishing gear underwater. This will allow companies to design optimal fishing gear, based on scientific research and avoiding empirical procedures. In addition, it will allow fishermen to evaluate and improve their standard operating techniques, and to develop optimal techniques. The calculation model assumes that the net consists of lumped point masses that are interconnected by mass-less springs. The equations of motion of these point masses can be expressed in a local coordinate system, which simplifies the treatment of the hydrodynamic forces acting on each mass using the inertia transformation algorithm. The computer simulation not only estimates the overall shape of fishing gear but also its mesh geometry, the tension on the netting, and the impact force on the sea bed. This will allow the development of smart gear and smart fishing. Users will be able to develop and operate fishing and aquaculture gear based on a sound understanding of the physical parameters, and design gear that is economical, efficient to operate, and less harmful to the ecosystem. In this paper, we introduce the net geometry simulation system (NaLA) and discuss how to apply the system to developing smart gear and smart fishing.
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LIU, Zhi-Hong, and Bei ZHU. "The Cultivation of College Studentsr Core Socialist Values Under Micro-culture Ecosystem." In 2018 4th Annual International Conference on Modern Education and Social Science (MESS 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/mess-18.2018.56.
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R Lotrecchiano, Gaetano, and Marie K Norman. "The Translational Learning EcoSystem." In InSITE 2022: Informing Science + IT Education Conferences InSITE 2022. Informing Science Institute, 2022. http://dx.doi.org/10.28945/4911.
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Aim/Purpose In this paper we propose an ecosystem for translational learning that combines core learning principles with a multilevel construct that embraces the tenets of translational research, namely, teaming, translating, and implementing. The goal of the paper is to argue that knowledge of learning sciences is essential at the individual, team, and organizational levels in the translational science enterprise. Background The two decades that we can now call the translational era of health and medicine have not been without challenges. Many inroads have been made in navigating how scientific teaming, translating knowledge across the health spectrum, and implementing change to our health systems, policies, and interventions can serve our changing global environment. These changes to the traditional health science enterprise require new ways of understanding knowledge, forging relationships, and managing this new tradition of science. Competency requirements that have become important to the enterprise are dependent on a deep understanding about how people learn as individuals, in teams, and within organizations and systems. Methodology An individual, team, and organizational conceptual framework for learning in translational ecosystems is developed drawing on the learning science literature, a synthesis of 9 key learning principles and integrated with core competencies for translational science. Contribution The translational learning ecosystem is a means by which to understand how translational science competencies can be reinforced by core learning principles as teaming, translating, and implementation intersect as part of the translational science enterprise. Findings This paper connects learning science to tailored principles in a simplified way so that those working translational science with less knowledge of theories of learning and pedagogy may be able to access it in a clear and concise way. Recommendation for Researchers This paper provides a framework for researchers who engage in the education of translational scientists as well as those who are charged with training new scientists in an emerging field critical to health and medicine. Future Research The translational ecosystem described can serve to expand how teaching and learning impact scientific advances. In addition, it serves as a means in which to understand the impact of learning on micro, meso, and macro levels.
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De Sousa Drumond, Jose David, and Georgia Kotsiopoulou. "Design and Implementation of an Integrated Ecosystem that Maximizes Engagement and Collaboration Inside and Outside of a Technical Cop in the Most Cost-Effective Way: Lessons Learnt from Multiples Success Stories." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/210961-ms.
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Abstract Implementing effective Knowledge Management strategy can be key elements to enable the continuous creation of value in a transitioning energy market where sustainability, diversity and equity are in the spotlight. This paper presents the blueprint, and approach for deploying KMS solutions embedded in widely spread platform, resulting in an effective community-wide engagement. This manuscript complements SPE-210844-MS which focus on the highly successful and extremely cost-effective, fit-for-purpose Knowledge Hub for training and development. The current global challenges, and the need for transformation driving our industry, requires the development of new and cost-effective ways for the exchange and support of colleagues located both at office locations and remote field teams. A detailed blueprint identifying the components and interfaces required to link Exchange, Support, and a comprehensive Knowledge Hub was developed. Ice-breaking. A systematic follow-up of pain-points, ideas, and operational issues allowed the materialization of Impacting Knowledge Elements that generated multiple tangible benefits in different operative areas under different contexts. Navigability, Mesh Interconnection between objects, the selection and deployment of diverse dedicated areas where employees could network and interact across functions and geographical locations, and feel free to exchange and bring forward important technical matters, tackle issues and engage experts and knowledge bases in a diverse, but closely linked, forum areas proved to be highly successful in creating the conditions for substantial exchange and a continuously growing interest for coming back to the platform with a willingness to close the loop on what was being achieved in multiple fronts. The use of Analytical tools, detailed KPIs, and of dashboards to analyze the flow of traffic and the issues of interest allowed to keep the platform relevant and up to date for each of the members in a highly diverse community. The approach utilized by this particular CoP has translated in an average usage and engagement that is in many cases 40x of others technical CoPs deployed in the same period. Multiple success stories have been achieved in the form of operational issues resolved and impacting knowledge put into practice by remote field teams. The paper explores specific examples of novel and exceptionally successful strategies and elements that were used in the design and implementation of the integrated ecosystem for exchange (while manuscript SPE-210844-MS explores Learning & Development elements). Analytical tools, SME crowdsourcing, lead and moderation, allowed sustained grow indicators include +112% of Active Users, +745% on Traffic/Posts, +52% in Knowledge Contributions.
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Bansal, Divya, and Sanjeev Sofat. "Securing IEEE 802.11 based hybrid wireless mesh networks." In 2010 International Conference on E-Health Networking, Digital Ecosystems and Technologies (EDT). IEEE, 2010. http://dx.doi.org/10.1109/edt.2010.5496540.
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Nguyen, Hoang Anh, Lucie Bland, Tristan Roberts, Siddeswara Guru, Minh Dinh, and David Abramson. "A Computational Pipeline for the IUCN Risk Assessment for Meso-American Reef Ecosystem." In 2017 IEEE 13th International Conference on e-Science (e-Science). IEEE, 2017. http://dx.doi.org/10.1109/escience.2017.42.
Full textReports on the topic "Ecosystem [MESH]"
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Crystal, Victoria, Justin Tweet, and Vincent Santucci. Yucca House National Monument: Paleontological resource inventory (public version). National Park Service, May 2022. http://dx.doi.org/10.36967/nrr-2293617.
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Yucca House National Monument (YUHO) in southwestern Colorado protects unexcavated archeological structures that were constructed by the Ancestral Puebloan people between 1050 and 1300 CE. It was established by Woodrow Wilson by presidential proclamation in 1919 and named “Yucca House” by archeologist Jesse Fewkes as a reference to the names used for this area by the local Ute, Tewa Pueblo, and other Native groups. It was originally only 3.9 ha (9.6 ac) of land, but in 1990, an additional 9.7 ha (24 ac) of land was donated by Hallie Ismay, allowing for the protection of additional archeological resources. Another acquisition of new land is currently underway, which will allow for the protection of even more archeological sites. The archeological resources at YUHO remain unexcavated to preserve the integrity of the structures and provide opportunities for future generations of scientists. One of the factors that contributed to the Ancestral Puebloans settling in the area was the presence of natural springs. These springs likely provided enough water to sustain the population, and the Ancestral Puebloans built structures around one of the larger springs, Aztec Spring. Yet, geologic features and processes were shaping the area of southwest Colorado long before the Ancestral Puebloans constructed their dwellings. The geologic history of YUHO spans millions of years. The oldest geologic unit exposed in the monument is the Late Cretaceous Juana Lopez Member of the Mancos Shale. During the deposition of the Mancos Shale, southwestern Colorado was at the bottom of an inland seaway. Beginning about 100 million years ago, sea level rose and flooded the interior of North America, creating the Western Interior Seaway, which hosted a thriving marine ecosystem. The fossiliferous Juana Lopez Member preserves this marine environment, including the organisms that inhabited it. The Juana Lopez Member has yielded a variety of marine fossils, including clams, oysters, ammonites, and vertebrates from within YUHO and the surrounding area. There are four species of fossil bivalves (the group including clams and oysters) found within YUHO: Cameleolopha lugubris, Inoceramus dimidius, Inoceramus perplexus, and Pycnodonte sp. or Rhynchostreon sp. There are six species of ammonites in three genera found within YUHO: Baculites undulatus, Baculites yokoyamai, Prionocyclus novimexicanus, Prionocyclus wyomingensis, Scaphites warreni, and Scaphites whitfieldi. There is one unidentifiable vertebrate bone that has been found in YUHO. Fossils within YUHO were first noticed in 1875–1876 by W. H. Holmes, who observed fossils within the building stones of the Ancestral Puebloans’ structures. Nearly half of the building stones in the archeological structures at YUHO are fossiliferous slabs of the Juana Lopez Member. There are outcrops of the Juana Lopez 0.8 km (0.5 mi) to the west of the structures, and it is hypothesized that the Ancestral Puebloans collected the building stones from these or other nearby outcrops. Following the initial observation of fossils, very little paleontology work has been done in the monument. There has only been one study focused on the paleontology and geology of YUHO, which was prepared by paleontologist Mary Griffitts in 2001. As such, this paleontological resource inventory report serves to provide information to YUHO staff for use in formulating management activities and procedures associated with the paleontological resources. In 2021, a paleontological survey of YUHO was conducted to revisit previously known fossiliferous sites, document new fossil localities, and assess collections of YUHO fossils housed at the Mesa Verde National Park Visitor and Research Center. Notable discoveries made during this survey include: several fossils of Cameleolopha lugubris, which had not previously been found within YUHO; and a fossil of Pycnodonte sp. or Rhynchostreon sp. that was previously unknown from within YUHO.