Academic literature on the topic 'Ecological systems'

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Journal articles on the topic "Ecological systems"

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RAI, VIKAS. "MODELLING ECOLOGICAL SYSTEMS." International Journal of Bifurcation and Chaos 05, no. 02 (April 1995): 537–43. http://dx.doi.org/10.1142/s0218127495000429.

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The paper introduces some new techniques which facilitate the study of nonlinear coupled ordinary differential equations modelling ecological systems. The strength and weaknesses of these techniques are discussed in detail. It also assesses the usefulness of “deterministic chaos” as a paradigm to understanding the dynamics of interacting populations.
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Tamponnet, Christian, and Christopher Savage. "Closed Ecological Systems." Journal of Biological Education 28, no. 3 (September 1994): 167–74. http://dx.doi.org/10.1080/00219266.1994.9655387.

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Matas, Gordan, and Iva Donelli. "Ecological systems theory." Zbornik radova Filozofskog fakulteta u Splitu, no. 13 (2020): 111–30. http://dx.doi.org/10.38003/zrffs.13.5.

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In this paper, Toni Morrison’s novel Beloved (1987) will be considered from the point of view of developmental psychology. Morrison’s works can be seen as representing an intertwinement of social, historico-political and emotional themes which play a crucial role in the identity construction of the author’s characters. Therefore, the Ecological Systems Theory proposed by Urie Bronfenbrenner will be employed to closely examine how the identities of Morrison’s characters are being shaped in the novel. The usage of the five systems on which Bronfenbrenner’s bioecological model is based– chronosystem, macrosystem, exosystem, mesosystem and microsystem, will provide an often missing holistic approach necessary for better understanding of how and why Morrison’s characters are (un)able to complete their developmental journey of identity construction successfully.
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Tamayo, Unai, and Gustavo Vargas. "Biomimetic economy: human ecological-economic systems emulating natural ecological systems." Social Responsibility Journal 15, no. 6 (September 2, 2019): 772–85. http://dx.doi.org/10.1108/srj-09-2018-0241.

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Purpose The purpose of this paper is to examine the use of biomimicry to inspire sustainable development in economic systems. The research purpose is to explore the link between ecological systems and economic systems to highlight applied environmental solutions. The goal is to propose some driver to develop sustainable business practices inspired on the principles of biomimicry. Design/methodology/approach This paper provides a theoretical approach that builds the basis for a better understanding of the relationship between nature and sustainable economic decisions. The premise is that in the field of sustainable development, strategies based on “learning from nature” are useful. Furthermore, the concept of biomimicry provides principles and tools specifically aimed at design practice. Findings The complexity of economic systems has shown that high levels of abstraction are required when conceptualising problems and explanations related with nature-inspired solutions. Stakeholder engagement and transdisciplinary collaboration are required to face long-term environmental challenges. Moreover, the exploratory analysis applied in this paper appeared suitable to compile existing literature. Practical implications The study provides some general guidelines and empirical approach through case studies that could help decision makers convert nature-inspired alternatives into valuable strategic business opportunities. Although presented practical cases are framed in the local sphere (i.e. the Basque Country), they can serve as references in other international contexts. Social implications New business models should recognize the positive synchronization between well-managed social, environmental and economic systems. Originality/value The proposed ideas deepen the understanding on the sustainable development and the link between ecological and economic systems. In fact, the concept of biomimetic economy has not been dealt with or developed in depth in previous academic works, nor has it been published thoroughly in the field of research.
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Parker, E. D., V. E. Forbes, S. L. Nielsen, C. Ritter, C. Barata, D. J. Baird, W. Admiraal, et al. "Stress in Ecological Systems." Oikos 86, no. 1 (July 1999): 179. http://dx.doi.org/10.2307/3546584.

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Provata, Astero, Igor M. Sokolov, and Bernardo Spagnolo. "Editorial: Ecological complex systems." European Physical Journal B 65, no. 3 (October 2008): 307–14. http://dx.doi.org/10.1140/epjb/e2008-00380-9.

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Müller, Felix. "Gradients in ecological systems." Ecological Modelling 108, no. 1-3 (May 1998): 3–21. http://dx.doi.org/10.1016/s0304-3800(98)00015-5.

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Yeonsoo Shim. "Resilience and Ecological Citizenship in Socio-Ecological Systems." Studies in Humanities and Social Sciences ll, no. 53 (November 2016): 5–24. http://dx.doi.org/10.17939/hushss.2016..53.001.

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Grace, James B. "Taking a systems approach to ecological systems." Journal of Vegetation Science 26, no. 6 (October 14, 2015): 1025–27. http://dx.doi.org/10.1111/jvs.12340.

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Janeček, A., and M. Mikleš. "Ecological aspect of mobile systems operated in terrain conditions." Research in Agricultural Engineering 49, No. 3 (February 8, 2012): 119–23. http://dx.doi.org/10.17221/4962-rae.

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In this paper is evaluated an optimal constructional and operating performance of the mobil terrain system, that works in forest ecosystems from point of view of volume of processed biomass and total amount of logging transport erosion. A monitored terrain system, working in forestry, is considered as a production system, with its material and energy flow. The determination value, that optimizes the production system, is the operating and constructional performance. In this paper is evaluated the amount erosion in dependence of cutting mass, by means of mathematics and from system point of view. The conditions for the mobile terrain system work, that insure optimal, i.e. minimal value of erosion will be determined. The theoretical results are verified. The optimal values of soil erosion are determined by experimental measurements. The principles of the paper are based on theses of ecological synthesis that determine coupling between dissipative energy of a production system and its ecological cleanliness of work.
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Dissertations / Theses on the topic "Ecological systems"

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Дегтярьова, Ія Олександрівна, Ия Александровна Дегтярева, Iia Oleksandrivna Dehtiarova, and D. Snitko. "Ecological-economic systems efficiency." Thesis, Видавництво СумДУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/7833.

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Milner, Rebecca J. "Ecological Systems in Action." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/2977.

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Book Summary: The Handbook of Experiential Teaching in Counselor Education: A Resource Guide for Counselor Educators is a peer-reviewed guide for teaching CACREP related course content. With 20 chapters covering multiple aspects of the CACREP standards, counselor educators have shared their resources, tips, and classroom techniques for training the next generation of counselors.
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Дегтярьова, Ірина Борисівна, Ирина Борисовна Дегтярева, and Iryna Borysivna Dehtiarova. "Synergism of ecological-economic systems." Thesis, Вид-во СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/8090.

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Lascoutx, Ruiz Alfredo. "A Politico-Ecological Approach of Transitional Spaces In Social Ecological Systems." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/41987.

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As spatial properties that systems theoretically have, Socio-Ecological Systems are characterized by dynamism and mobility, therefore, are subject to changes in the space they occupy in the biosphere. In land ecosystems, these changes are understood as processes of evolution over time, or the result of extreme natural events, or transformation of the natural space induced by human activities. These spatial changes produce effects on the land surface and groundwater of ecosystems colonized or penetrated by elements, individuals or populations belonging to other ecosystems. These are the so-called Transitional Spaces between ecosystems. Throughout the continuous geographical space, these spatial transitions affect human and not human ecosystems in different ways. Given their ambiguous characteristics and their indefinite temporal location between urban, rural or natural spaces, transition spaces deserve to be investigated in order to know their properties and functions within the cartography that represents complex socio-ecological systems. The research is conducted from a particular perspective of Political Ecology. For this I proceed to develop an epistemological exercise on the political ecology syntagma in order to approach its concept and object of study as a hybrid discipline between social sciences and natural sciences. Interdisciplinarity as a practice, a dialectic vision regarding anthropocentrism, environmental perception as a method for an ontology of human ecology, The ecosystem as a unit of spatial analysis. These would be some of the characteristics of my ecological-political perspective. But what does transitional space mean for political ecology and what does it add to its theory? The question led me to seek the integral concept of ecosystem and to support myself in the General Systems Theory to analyze the notions of boundary and external environment as part of the classic concept of system. At that point, the notion of transitional spaces emerges implicit when recognizing the dynamic spatiality of other existing systems. v Since the research is not linear but interdisciplinary and convergent, a brief anthology of geographic and socio-spatial political thought is presented in order to connect the issue of transitional spaces with the point of view of the social sciences. Various socio-geographical, deterministic, anthropocentric, Darwinian, Marxist, modernist theories give an overview of the issues related to space and nature. With the emergence of the spatial turn, new concerns for political sociology, geography and environmental sciences are explained by the phenomenon of urban growth at the global level. In the same way, I introduce the topic of ecological spaces, specifically the concept of Ecotone, the space of transition between diverse natural ecosystems. The use of the notion of ecotone is based precisely on the perspective of the concept of political ecology developed previously. This, in turn, will allow me to introduce the FLACAM methodology into the research, which among its components has the virtue of identifying and analyzing the spatial phenomenon of physical and social Interfaces, that is, spaces of transition within human ecosystems. Several graphics and charts show the potential properties and functions of different kind of existing interfaces and ecotones. My proposal converges in using these concepts as planning tools for transitional spaces identified as Rurban Regions and metropolitan areas. A final reflection on the need for spatial research on global urban expansion and the theoretical and pragmatic advantages of the concept of intermediate cities closes the main body of the investigation.
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Мельник, Леонід Григорович, Леонид Григорьевич Мельник, Leonid Hryhorovych Melnyk, Ірина Борисівна Дегтярьова, Ирина Борисовна Дегтярева, and Iryna Borysivna Dehtiarova. "Synergetic effects of ecological-economic systems." Thesis, Видавництво СумДУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/7920.

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Modern character of ecological-economic relations needs new approaches to long-term and short-term strategies of territorial development. For ecological-economic efficiency we need to incorporate not only internal results of economic subjects, but also external results, that appear as a result of economic subject’s activity in other spheres. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/7920
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Lopes, Marta Filipa Lobão. "Ecological quality assessment in transitional systems." Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14856.

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Doutoramento em Biologia
Estuaries are poles of attraction for human settlement which is a source of pressures to surface water bodies. The implementation of the European Water Framework Directive (WDF, 2000/60/EC) has increased the investigation in order to develop methodologies to assess the Ecological Quality Status (EQS) of aquatic ecosystems. Transitional systems are naturally stressed and characterized by highly dynamic physical, chemical and hydro-morphologic conditions and by species with a higher level of tolerance to change, being more difficult to develop suitable quality indicators for these systems. The general purpose of this study is to test the ability of synthesis descriptors, including primary (S, taxa richness) and derived biological variable (H’, Shannon-Wiener diversity), biotic indices (AMBI and M-AMBI), body size properties (abundance distribution by body size classes, length, weight and length-weight relationships) and non-taxonomic indices (ISS), as well as functional indicators related to the decomposition rates of various experimental substrates, a macrophyte (Phragmites australis) and an alga (Fucus vesiculosus), to evaluate the environmental quality in transitional systems. This study was carried out in one of the most pristine channels of the Ria the Aveiro, Mira Channel, along a full salinity gradient and in a metals and metalloid sediment contamination area, the Estarreja Channel, and two reference channels (Canelas and Salreu). In this study were used different sampling techniques, the leaf-bag technique and a hand-held corer. In Mira Channel, the alga and the macrophyte presented an opposite trend in the decomposition rate along the salinity gradient, with the decomposition rates of the alga always higher than those of the macrophyte. The decomposition rates of the macrophyte and the alga were higher in the mid estuary and in higher salinity areas, respectively, corresponding to the preferencial distribution areas of each species. The macrobenthic fauna associated with the decaying and an artificial substrate (control) showed equally well the benthic succession from the marine to the freshwater areas and, despite the strong differences in the decay rates, no significant differences were found between the benthic communities associated with the alga and the macrophyte. The body size properties of the macrobenthic fauna associated with the P. australis leaf-bag (1mm and 5mm) and corer samples were studied along the full salinity gradient. The dominant species of the sub-set of measured specimens were not the same of the original macrobenthic fauna sampled but, despite that, the sub-set of measured specimens was also able to show the benthic succession from the marine to the freshwater areas. The body size abundance distribution of the benthic macroinvertebrates according to the ISS size classes did not show a particular trend in any sampler along the salinity gradient. Significant differences were found in the length, weight and length-weight relationships of Annelids, , Molluscs and even some species along the salinity gradient. No significant differences were found in the AMBI, M-AMBI and ISS values along the salinity gradient for all the samplers. The EQS of the corer samples obtained using the M-AMBI was lower than that of the leaf-bags. The EQS obtained with the ISS was higher than that obtained with the M-AMBI in the leaf-bags but not in the corer samples. The ecological effects of contaminated sediments associated with the industrial chemical effluents discharged in the Estarreja Channel were studied a decade after ceasing the emissions, using the Sediment Quality Triad approach and two reference channels. The results showed that despite the emissions ceased in 2004, the sediment remains polluted with high levels of metals and metalloid, available to bioaccumulation and with severe consequences at the community level. The sediment contamination problem was also studied using the leaf-bag technique with a macrophyte, an alga and a control substrate. The results showed that the decay rates, the associated macrofauna and the application of the AMBI, M-AMBI and ISS indices to the mesh-bag samples were not able to identify the sediment contamination. Contrarily to the AMBI, the M-AMBI and the ISS showed significant differences between the contaminated and the reference channels for the corer samples. Although such statistical significance, the interest of using these complex biotic indices could be questioned, when much simple ones, like the S and H’ allow to reach the same conclusions.
Os estuários são pólos de atração para a instalação de aglomerados humanos, constituindo uma fonte de pressão para as massas de água superficiais. Com a implementação da Diretiva Europeia Quadro da Água (DQA, 2000/60/CE) tem aumentado a investigação no sentido de desenvolver metodologias para avaliar o estado de qualidade ecológica (EQE) dos ecossistemas aquáticos. Os sistemas de transição são caracterizados por condições físico-químicas e hidromorfológicas extremamente dinâmicas e por espécies com uma maior tolerância à mudança, sendo difícil desenvolver indicadores de qualidade adequados para estes ecossistemas. O objetivo deste estudo é testar a capacidade de descritores de síntese, tais como a riqueza em espécies (S) e a diversidade de Shannon-Wiener (H'), índices de base taxonómica (AMBI e M-AMBI) e não taxonómica (ISS), as propriedades do tamanho corporal (distribuição de abundância por classes de tamanho corporal, comprimento, peso e relações comprimento-peso), bem como indicadores funcionais (taxas de decomposição de uma macrófita (Phragmites australis) e uma alga (Fucus vesiculosus)), para avaliar a qualidade ambiental dos sistemas de transição. Este estudo foi realizado ao longo de um gradiente completo de salinidade num dos canais com menor impacto antropogénico da Ria de Aveiro, o Canal de Mira, numa área com contaminação sedimentar por metais e metaloides, o Canal de Estarreja, e dois canais de referência (Canelas e Salreu). Neste estudo foram utilizadas diferentes técnicas de amostragem, a técnica dos sacos de folha e corers. No Canal de Mira, a alga e a macrófita apresentaram uma tendência oposta na taxa de decomposição ao longo do gradiente de salinidade, com as taxas de decomposição da alga sempre superiores. As taxas de decomposição da macrófita e da alga foram mais elevadas a meio do estuário e em áreas de maior salinidade, respetivamente, correspondendo às preferenciais áreas de distribuição de cada espécie. A fauna bentónica associada aos substratos orgânicos e a um substrato artificial (controlo) mostrou a sucessão bentónica ao longo do gradiente estuarino e, apesar das grandes diferenças nas taxas de decomposição, não foram encontradas diferenças nas comunidades bentónicas entre ambos os substratos. As propriedades do tamanho corporal da fauna bentónica dos sacos de folhas de P. australis (1mm e 5mm) e corers foram estudadas ao longo do gradiente estuarino. As espécies dominantes do sub-conjunto de espécimes medidos não são as mesmas da fauna bentónica original mas, apesar disso, foram capazes de mostrar a sucessão bentónica ao longo do gradiente salino. A distribuição da abundância pelas classes de tamanho estabelecidas para o cálculo do índice ISS não mostrou nenhuma tendência ao longo do gradiente de salinidade em nenhum dos amostradores. Foram encontradas diferenças significativas no comprimento, peso e na relação comprimento-peso dos Anelídeos, Artrópodes, Moluscos e de algumas espécies ao longo do gradiente de salinidade. Não foram encontradas diferenças significativas nos valores AMBI, M-AMBI e ISS ao longo do gradiente estuarino. O EQE das amostras dos corer foi inferior ao dos sacos de folhas. O EQE obtido com o ISS foi mais elevado do que o obtido com o M-AMBI nos sacos de folha, mas não nas amostras do corer. Os efeitos ecológicos associados à contaminação dos sedimentos por efluentes químicos lançados no Canal de Estarreja foram estudados uma década após a sua cessação, recorrendo à Tríade de Qualidade Sedimentar e dois canais de referência. Os resultados mostraram que o sedimento permanece contaminado com elevados níveis de metais e metaloide, disponíveis para serem bioacumulados e com graves consequências ao nível da comunidade. A contaminação do sedimento foi também estudada utilizando a técnica dos sacos de folhas com a macrófita, a alga e um substrato de controlo, tendo-se verificado que as taxas de decomposição, a macrofauna associada e a aplicação dos índices AMBI, M-AMBI e ISS aos sacos de folhas não foram capazes de identificar o problema. Ao contrário do AMBI, o M-AMBI e o ISS apresentaram diferenças significativas entre o canal contaminado e os canais de referência para as amostras do corer. No entanto, a utilização de índices tão complexos é questionável, na medida em que índices mais simples, tais como a S e a H', permitem chegar às mesmas conclusões.
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Sheppy, Margarette Isabell. "An ecological-systems analysis of anorexia nervosa." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/26044.

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Aspects of the ecological systemic approach were used to provide a framework for the understanding of the dynamics of anorexia nervosa and were empirically tested by comparing 30 anorexics and their parents to 34 matched control subjects and their parents. The theoretical model employed was an adaptation of Conger's Ecological-Systems approach which was based on the principles of Bronfenbrennei's theory of human development. The subjects were compared on selected variables arising from the individual, parent, family, and community systems using: 1) the California Psychological Inventory (CPI), 2) the Structural Analysis of Social Behavior (SASB), 3) the Family Environment Scale (FES), and 4) the Pattison Psychosocial Inventory (PPI). Statistical analysis of the difference between means was tested using Hotelling's (T²) procedure followed by a discriminant analysis. The final analysis occured using a Stepwise Discriminant procedure. The results of the stepwise analysis revealed that the Affiliation score (SASB) for the anorexics and the control subjects and the Psychopathic Deviancy score (CPI-Clinical) of the mothers of the anorexics and the controls were the variables which contributed to the discriminant analysis. With the Affiliation and the Psychopathic Deviancy scores alone, it was possible to correctly classify 87.5% of the research subjects. Analyses also showed statistically significant results at the individual, parent, and family levels. Specifically, the anorexic daughters were found to have a negative self-worth as measured by the SASB. They were also more anxious and at odds with themselves and others (CPI). The anorexics were more depressed than the controls, had a greater tendency toward rebelliousness and hostility toward authority, and expressed their feelings in a more indirect manner. The anorexics may use ritualistic thoughts and actions in an attempt to structure their lives to overcome their feelings of losing control. They lack a sense of who they are emotionally and generally feel alienated and lonely as if on the outside looking in. The CPI-Psychopathic Deviancy scale was significantly higher for the mothers of the anorexics than for the controls. No differences were found between the two groups of fathers. Interactions within the family, as perceived by the anorexics, were characterized by overprotection and control by the mothers while the anorexics responded with significantly less affiliation to both their mothers and their fathers. The mothers of the anorexics also viewed their daughters as being less friendly in the relationship. There were no significant findings regarding the perceptions of the fathers of the anorexics and the controls. The families of the anorexics were less supportive, helpful and committed to each other than were the families of the control subjects as measured by the FES.
Education, Faculty of
Educational and Counselling Psychology, and Special Education (ECPS), Department of
Graduate
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Law, Derek M. "ECOLOGICAL WEED MANAGEMENT FOR ORGANIC FARMING SYSTEMS." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_theses/414.

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Two field studies examining direct ecological weed control practices were conducted in Lexington, Kentucky. The first evaluated weed control efficacy and influence on yields of several mulches in two organically-managed bell pepper (Capsicum annum) production systems for two years. Peppers were planted in double rows in flat, bare ground or on black polyethylene-covered raised beds with drip irrigation, and four mulches (straw, compost, wood chips, and undersown white dutch clover (Trifolium repens L.) living mulch) were applied to the two production systems. In both years, polyethylene-covered raised beds produced higher yields than the flat, bare ground system. In the second year, the polyethylene-covered bed system coupled with mulching in-between beds with compost or wood chips after cultivation provided excellent weed control and yields. The second field study evaluated the efficacy of soil solarization and shallow cultivation on the invasive and noxious weed johnsongrass over two years (Sorghum halapense). A soil solarization treatment, using clear plastic stretched over soil for eight weeks, and a cultivated bare fallow treatment, utilizing a tractor pulled cultivator implement equipped with sweep blades, were randomly applied during the summers of 2003 and 2004 to a field infested with johnsongrass. Solarized and cultivated plots in both years were lightly tilled 8 months after completion of the initial treatment period. At the conclusion of the experiment the johnsongrass population was significantly reduced in all treatments and in the control plots compared to the original infestation. These two experiments testing direct weed control practices (mulching, cultivation, solarization) were undertaken in the context of an ecological weed management plan that includes long term strategies to reduce weed infestations such as crop rotation, cover cropping, and fertility management that are essential for organic farmers.
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White, Andrew. "Temporal and spatial dynamics of ecological systems." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338459.

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Reynolds, Jennifer Joan Heather. "Drivers of population cycles in ecological systems." Thesis, Heriot-Watt University, 2012. http://hdl.handle.net/10399/2530.

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In this thesis, mathematical models are used to investigate potential drivers of population cycles. Population cycles are a common ecological phenomenon, yet the mechanisms underpinning these oscillations are not always known. We focus on two distinct systems, and evaluate potential causes of cyclic dynamics. In the first part of the thesis, we develop and analyse a host–pathogen model, incorporating density-dependent prophylaxis (DDP). DDP describes when individuals invest more in immunity at high population densities, due to the increased risk of becoming infected by a pathogen. The implications of this for the population dynamics of both host and pathogen are examined. We find that the delay in the onset of DDP is critical in determining whether DDP increases or decreases the likelihood of population cycles. Secondly, we focus on a particular cyclic vole population, that of Kielder Forest, Northern UK. We construct a model to test the hypothesis that the population oscillations observed in this location are caused by the interaction between the voles and the silica in the grass they consume. We extend our model by including seasonal forcing, and study the effects of this on the population dynamics.
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Books on the topic "Ecological systems"

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Leemans, Rik, ed. Ecological Systems. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-5755-8.

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M, Lisovsky G., and MacElroy R. D. 1939-, eds. Manmade closed ecological systems. London: Taylor & Francis, 2003.

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Behnassi, Mohamed, Himangana Gupta, Mahjoub El Haiba, and Gopichandran Ramachandran, eds. Social-Ecological Systems (SES). Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-76247-6.

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Miklós, László, Andrea Diviaková, and Zita Izakovičová. Ecological Networks and Territorial Systems of Ecological Stability. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-94018-2.

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1924-, Odum Howard T., ed. Ecological microcosms. New York: Springer-Verlag, 1993.

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Guntenspergen, G. R. Ecological perspectives on wetland systems. S.l: s.n, 1985.

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Heinrich, Walter. Ecological systems of the geobiosphere. Berlin: Springer-Verlag, 1985.

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Walter, Heinrich, and Siegmar-W. Breckle. Ecological Systems of the Geobiosphere. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-662-02437-9.

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Walter, Heinrich, and Siegmar-W. Breckle. Ecological Systems of the Geobiosphere. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-70160-3.

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Walter, Heinrich, and Siegmar-W. Breckle. Ecological Systems of the Geobiosphere. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-662-06812-0.

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Book chapters on the topic "Ecological systems"

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Leemans, Rik. "Ecological Systems ecological/ecology systems , Introduction." In Encyclopedia of Sustainability Science and Technology, 3296–99. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_938.

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Hasegan, Diana, and Gord Lovegrove. "Ecological Systems." In Engineering for Sustainable Communities, 127–55. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784414811.ch11.

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Bascompte, Jordi. "Ecological Systems." In Encyclopedia of Complexity and Systems Science, 2711–28. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-30440-3_163.

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Leemans, Rik. "Ecological Systems, Introduction." In Ecological Systems, 1–6. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5755-8_1.

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Ricciardi, Anthony. "Invasive Species." In Ecological Systems, 161–78. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5755-8_10.

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Wu, Jianguo. "Landscape Ecology." In Ecological Systems, 179–200. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5755-8_11.

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Smith, Walker O., Eileen E. Hofmann, and Anna Mosby. "Marine Biogeochemistry." In Ecological Systems, 201–21. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5755-8_12.

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Chesson, Peter. "Species Competition and Predation." In Ecological Systems, 223–56. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5755-8_13.

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Baillie, Jonathan E. M., and Karolyn Upham. "Species Diversity Within and Among Ecosystems." In Ecological Systems, 257–71. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5755-8_14.

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Pickett, S. T. A., and M. L. Cadenasso. "Urban Ecology." In Ecological Systems, 273–301. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5755-8_15.

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Conference papers on the topic "Ecological systems"

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Riordan, D., and K. J. Carden. "Explanation in ecological systems." In the 1990 ACM SIGSMALL/PC symposium. New York, New York, USA: ACM Press, 1990. http://dx.doi.org/10.1145/99412.99483.

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Blevis, Eli, Susanne Bødker, John Flach, Jodi Forlizzi, Heekyoung Jung, Victor Kaptelinin, Bonnie Nardi, and Antonio Rizzo. "Ecological Perspectives in HCI." In CHI '15: CHI Conference on Human Factors in Computing Systems. New York, NY, USA: ACM, 2015. http://dx.doi.org/10.1145/2702613.2702634.

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Wang, Qi Yan. "Social-ecological systems theoretical framework review." In Environment (ICMREE). IEEE, 2011. http://dx.doi.org/10.1109/icmree.2011.5930751.

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Stone, Lewi. "Complex Synchronization Phenomena in Ecological Systems." In EXPERIMENTAL CHAOS: 6th Experimental Chaos Conference. AIP, 2002. http://dx.doi.org/10.1063/1.1487695.

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Berezansky, Vladimir M. "Multipurpose system for ecological monitoring." In Third Conference on Photonic Systems for Ecological Monitoring, edited by Milos Klima, Yuri A. Kuznetsov, and Victor A. Shilin. SPIE, 1997. http://dx.doi.org/10.1117/12.284756.

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Balas, V. E., M. M. Balas, and M. V. Putin-Racovita. "Passive Greenhouses and Ecological Reconstruction." In 2008 International Conference on Intelligent Engineering Systems. IEEE, 2008. http://dx.doi.org/10.1109/ines.2008.4481273.

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Bartkova, Lyudmila, Mykola Dyvak, Yuriy Pigovsky, and Frederick Satkowiak. "Investigation and Simulation Social and Ecological Factors Influence on the Social-Ecological Damage." In 2005 IEEE Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IEEE, 2005. http://dx.doi.org/10.1109/idaacs.2005.283034.

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Luo, Ren C., and Wen H. Chang. "A novel self-maintenance ecological system of sensor network based on ecological balance environment." In 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems. IEEE, 2007. http://dx.doi.org/10.1109/iros.2007.4399433.

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"FUZZY APPROACHES FOR MODELING DYNAMICAL ECOLOGICAL SYSTEMS." In 1st International Conference on Simulation and Modeling Methodologies, Technologies and Applications. SciTePress - Science and and Technology Publications, 2011. http://dx.doi.org/10.5220/0003614603740379.

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Hong, Zhang, and He Huacan. "Ecological Calculus Framework for Multi-Agent Systems." In 2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference. IEEE, 2007. http://dx.doi.org/10.1109/dest.2007.372016.

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Reports on the topic "Ecological systems"

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Covington, W. Wallace, and Leonard F. DeBano. Sustainable ecological systems: Implementing an ecological approach to land management. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1994. http://dx.doi.org/10.2737/rm-gtr-247.

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Gaff, S. J., and V. Protopopescu. Sustainability and profitability in ecological systems with harvesting. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/7015750.

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Miller, G., and A. E. Lugo. Guide to the ecological systems of Puerto Rico. San Juan, PR: U.S. Department of Agriculture, Forest Service, International Institute of Tropical Forestry, 2009. http://dx.doi.org/10.2737/iitf-gtr-35.

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Robertson, Perry J., Richard Joseph Kottenstette, Shannon M. Crouch, Robert Wesley Brocato, Bernard Daniel Zak, Thor D. Osborn, Mark D. Ivey, et al. Preliminary systems engineering evaluations for the National Ecological Observatory Network. Office of Scientific and Technical Information (OSTI), November 2008. http://dx.doi.org/10.2172/942057.

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Q., Li, Y. Fu, and Y. Su. Diversified Livelihoods in Changing Socio-ecological Systems of Yunnan Province, China. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 2009. http://dx.doi.org/10.53055/icimod.502.

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Q., Li, Y. Fu, and Y. Su. Diversified Livelihoods in Changing Socio-ecological Systems of Yunnan Province, China. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 2009. http://dx.doi.org/10.53055/icimod.502.

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Uehara, Takuro. A Systems Approach to Ecological Economic Models Developed Progressively in Three Interwoven Articles. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.553.

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Walker, Tywanquila L. Ecological Systems Theory: Using Spheres of Influence to Support Small-unit Climate and Training. Fort Belvoir, VA: Defense Technical Information Center, March 2016. http://dx.doi.org/10.21236/ad1009046.

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Hummel, S., Frank Lake, and A. Watts. Using forest knowledge: how silviculture can benefit from ecological knowledge systems about beargrass harvesting sites. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2015. http://dx.doi.org/10.2737/pnw-gtr-912.

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Altman, Safra, R. Harris, S. McKay, Michael Kjelland, and Todd Swannack. Oyster reef connectivity : ecological benefits and associated vulnerabilities. Engineer Research and Development Center (U.S.), August 2022. http://dx.doi.org/10.21079/11681/45020.

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Abstract:
Global oyster abundance has declined ~85 % over the past 200 years, primarily because of overharvesting (Beck, Brumbaugh, and Airoldi 2011; Kirby 2004). Healthy oyster reef systems benefit the environment in many ways, including water-quality improvement, shoreline protection, increased biological and habitat diversity, and carbon sequestration. To maintain these environmental benefits, reef-restoration efforts that produce healthy, sustainable oyster reefs are essential. To this end, the US Army Corps of Engineers (USACE) has been involved in reef-restoration projects in many locations, including extensive efforts in the Chesapeake Bay (Virginia, Maryland), coastal regions of New York and New Jersey, and the Gulf of Mexico. There are many benefits to creating and maintaining oyster reef systems that are well connected, for both oysters and other organisms within the reef and surrounding habitats. This technical note presents the current knowledge of benefits and costs to restore oyster-reef connectivity along the East and Gulf Coasts of North America. Connectivity of oyster reefs can refer to the physical location of reefs with respect to one another as well as to the dynamics of the genetic links within a metapopulation or to the extent to which larval transport and recruitment unite reef communities. For the purposes of this technical note, connectivity is defined as the spatial aggregation of reefs, though we address impacts of genetic and larval flow as well. Reef connectivity positively affects many ecosystem services and dynamics but can also have unintended consequences (that is, negative externalities). This technical note reviews the benefits and costs of increasing connectivity and presents a brief example of how trade-offs may occur between these potentially opposing ecological objectives. Here, we focus on the eastern oyster, Crassostrea virginica, which inhabits the East and Gulf Coasts of North America, though many of the concepts and principles discussed may apply to other oyster species as well.
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