Relevant bibliographies by topics / Percentage cover

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Percentage cover'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Percentage cover"

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Zikri, Muhammad, and Reki Kardiman. "Struktur Tegakan dan Tutupan Kanopi Ekosistem Hutan dan Parak di Kecamatan Lubuk Kilangan Kota Padang." Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa 2, no. 4 (2024): 01–16. http://dx.doi.org/10.62383/algoritma.v2i4.66.

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This study aimed to determine the stand structure and tree canopy cover in forest and parak ecosystems in Lubuk Kilangan District, Padang City. This is a descriptive research with a direct observation throught purposive random sampling method. Data were collected by making six of 20 x 20 m plots in each primary forest and parak ecosystem. Tree diameters ≥10 cm were measured in each plot and canopy cover were collected using the Hemispherical Photography method using a mobile phone front camera equipped with a fish-eye lens. Data were analyzed in terms of stand density, basal area, Stand Basal
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Abdelmoneim, Karamalla Gaiballa, and Mirghani Mohamed Ali Osman. "Seagrass Species Composition and Distribution in Coastal Water of the Red Sea in the Sudan." International Journal of Novel Research in Life Sciences 10, no. 4 (2023): 52–60. https://doi.org/10.5281/zenodo.8300433.

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<strong>Abstract:</strong> Seagrasses are distinctive angiosperm marine plants that grow submerged in the seawater. They are one of the important marine ecosystems components that stabilize the marine and coastal environment. During the investigation seagrass species composition, percentage cover and distribution, besides some water characteristics such as temperature, salinity, transparency and hydrogen ion concentration (pH) were examined at eleven sites of Sudanese Red Sea coastal area. The seagrasses were sampled using the permanent line transects and quadrates. Analysis of variance (ANOVA
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Miura, Satoru, Shin Ugawa, Shuichiro Yoshinaga, and Tsuyoshi Yamada Keizo Hirai. "Floor Cover Percentage Determines Splash Erosion inChamaecyparis obtusaForests." Soil Science Society of America Journal 79, no. 6 (2015): 1782–91. http://dx.doi.org/10.2136/sssaj2015.05.0171.

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Shelton, David P., Mark A. Schroeder, Stephen D. Kachman, James A. Gosey, and Paul J. Jasa. "Cattle grazing influences on percentage corn residue cover." Journal of Soil and Water Conservation 52, no. 3 (1997): 203–6. https://doi.org/10.1080/00224561.1997.12457151.

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Mallombasi, Andi, Supriadi Mashoreng, and Yayu A. La Nafie. "THE RELATIONSHIP BETWEEN SEAGRASS Thalassia hemprichii PERCENTAGE COVER AND THEIR BIOMASS." Jurnal Ilmu Kelautan SPERMONDE 6, no. 1 (2020): 7. http://dx.doi.org/10.20956/jiks.v6i1.9922.

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Seagrass has many functions and values, including as carbon sink. However, to estimate carbon in seagrass, it involves seagrass biomass harvesting which is laborious, costly, and destructive. This study aimed to find out the relationship between seagrass Thalassia hemprichii percent cover with their biomass which will provide alternative method for biomass estimation leading to an efficient, less cost and less destructive method for seagrass carbon stock estimation. Seagrass were sampled in Bonebatang island, South Sulawesi, and estimated their percent cover following SeagrassWatch Method from
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Tinambunan, Shintani Asri, Nyoman Dati Pertami, and Ni Made Ernawati. "Percentage of Mangrove Canopy Cover and Mollusks Abundance in Benoa Bay Mangrove Ecosystem." Advances in Tropical Biodiversity and Environmental Sciences 5, no. 3 (2021): 105. http://dx.doi.org/10.24843/atbes.2021.v05.i03.p05.

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This research was conducted to determine the condition of the mangrove ecosystem based on its canopy cover and to determine the types of mollusks (Bivalves and Gastropods) associated with the Benoa Bay mangrove ecosystem. Hemispherical photography is a method for observing mangrove canopy cover and line transect method for mollusks. The composition of mangrove species found in the research location were five species, namely Rhizophora stylosa, Rhizophora mucronata, Rhizophora apiculata, Bruguiera gymnorrhiza, and Avicennia marina. The percentage of mangrove canopy cover in the Benoa Bay mangro
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Prasetya, Johan Danu, and Dian Hudawan Santoso. "Comparative Study of Point Intercept Transect (PIT) Method and Underwater Photo Transect (UPT) to Calculate Hard Coral Cover Percentage." Jurnal Ilmiah Perikanan dan Kelautan 14, no. 2 (2022): 404–10. http://dx.doi.org/10.20473/jipk.v14i2.32393.

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Highlight ResearchPoint Intercept Transect Method (PIT) and Underwater Photo Transect (UPT) to monitor coral cover was comparedPercentage of hard coral cover was analyzedThe average difference of the percentage of hard coral cover obtained from the PIT and UPT was analyzed AbstractCoral reef ecosystems are vulnerable to damage and extinction. Therefore, it is imperative that, as part of conservation, their conditions are monitored using straight forward or easy-to-use methods. The research was intended to compare the effectiveness of using Point Intercept Transect (PIT) and Underwater Photo Tr
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Yang, Chen, Meichen Fu, Dingrao Feng, Yiyu Sun, and Guohui Zhai. "Spatiotemporal Changes in Vegetation Cover and Its Influencing Factors in the Loess Plateau of China Based on the Geographically Weighted Regression Model." Forests 12, no. 6 (2021): 673. http://dx.doi.org/10.3390/f12060673.

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Vegetation plays a key role in ecosystem regulation and influences our capacity for sustainable development. Global vegetation cover has changed dramatically over the past decades in response to both natural and anthropogenic factors; therefore, it is necessary to analyze the spatiotemporal changes in vegetation cover and its influencing factors. Moreover, ecological engineering projects, such as the “Grain for Green” project implemented in 1999, have been introduced to improve the ecological environment by enhancing forest coverage. In our study, we analyzed the changes in vegetation cover ac
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Innes, John L. "The Use of Percentage Cover Measurements in Lichenometric Dating." Arctic and Alpine Research 18, no. 2 (1986): 209. http://dx.doi.org/10.2307/1551131.

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Innes, John L. "The Use of Percentage Cover Measurements in Lichenometric Dating." Arctic and Alpine Research 18, no. 2 (1986): 209–16. http://dx.doi.org/10.1080/00040851.1986.12004079.

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Dissertations / Theses on the topic "Percentage cover"

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Lucas, Lyle. "Post-Fire response of botanical and microbial communities in the succulent Karoo." University of the Western Cape, 2018. http://hdl.handle.net/11394/6428.

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Magister Scientiae (Biodiversity and Conservation Biology) - MSc (Biodiv & Cons Biol)<br>Fire as a form of disturbance is unique in the way it impacts upon the environment, acting like a herbivore with a ubiquitous appetite. Consuming both dead and living material, converting complex organic molecules into organic and mineral products, which return to the soil. The role of disturbance has long been considered a driver of diversity within Mediterranean type ecosystems. Recently the interest in soil microbes has been piqued, as the importance thereof has been emphasised, particularly their role
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Klisch, Anja. "Ableitung von Blattflächenindex und Bedeckungsgrad aus Fernerkundungsdaten für das Erosionsmodell EROSION 3D." Phd thesis, Universität Potsdam, 2003. http://opus.kobv.de/ubp/volltexte/2005/104/.

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In den letzten Jahren wurden relativ komplexe Erosionsmodelle entwickelt, deren Teilprozesse immer mehr auf physikalisch begründeten Ansätzen beruhen. Damit verbunden ist eine höhere Anzahl aktueller Eingangsparameter, deren Bestimmung im Feld arbeits- und kostenaufwendig ist. Zudem werden die Parameter punktuell, also an bestimmten Stellen und nicht flächenhaft wie bei der Fernerkundung, erfasst. <br /> <br /> Im Rahmen dieser Arbeit wird gezeigt, wie Satellitendaten als relativ kostengünstige Ergänzung oder Alternative zur konventionellen Parametererhebung genutzt werden können. Dazu werden
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Kenney, Peter Martin. "An Initial Study to Determine a Friction-Factor Model for Ground Vegetation." Connect to full text in OhioLINK ETD Center, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1264706279.

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Dissertation (Ph.D.)--University of Toledo, 2009.<br>Typescript. "Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Engineering." Bibliography: leaves 51-53.
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Bremm, Carolina. "Padrões de ingestão e deslocamento de bovinos e ovinos em ambientes pastoris complexos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/29247.

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O presente trabalho foi desenvolvido na EEA-UFRGS, em Eldorado do Sul/RS, entre novembro e dezembro de 2009, com o objetivo de avaliar as estratégias de pastejo de novilhas e ovelhas, buscando o entendimento das respostas dos animais frente a distintos níveis de cobertura de touceiras em pastagens naturais. Foi utilizado um delineamento experimental de blocos completamente casualizados com quatro repetições. Os tratamentos consistiram de diferentes proporções de cobertura de estrato superior: 0, 25, 50 e 75% de touceiras de capim-annoni-2 (Eragrostis plana Nees) em estádio vegetativo, consider
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Louro, Rogério Filipe Agostinho. "Factores ambientais que afectam a riqueza específica de macrofungos em montados de azinho - implicações para a Gestão e Conservação." Master's thesis, Universidade de Évora, 2010. http://hdl.handle.net/10174/20755.

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A riqueza especifica de macrofungos e os mecanismos naturais que a influenciam são ainda pouco conhecidos. Foram utilizados modelos de regressão linear para inferir a relação existente entre a riqueza de macrofungos e diversas variáveis ambientais. De Novembro de 2005 a Abril de 2007 foram amostradas mensalmente as espécies de macrofungos presentes em montados de azinho (Quercus rotundifolia Lam.) no Parque de Natureza de Noudar (Alentejo, Portugal). Verificou-se que a riqueza de espécies micorrízicas aumenta com a classe etária das árvores e com a percentagem de coberto arbustivo, enquanto a
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Books on the topic "Percentage cover"

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Kacorzyk, Piotr. Wartość gospodarcza okrywy roślinnej gleby w aspekcie nawożenia oraz zdolności retencyjnej płytki gleby górskiej. Publishing House of the University of Agriculture in Krakow, 2018. http://dx.doi.org/10.15576/978-83-66602-33-5.

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The aim of the study was to assess the impact of method management of mountain soil on the quantity and quality of waste water, and the amount of mineral nutrients it contains. I have analyzed the water, that was moved through the soil profiles of 0-20 cm and 0-40 cm depth. I have also evaluated the floristic composition, the productivity of grassland and arable land, and the use of fertilizers by vegetation and soil chemical properties. I have found that the type of plant cover of the soil had a significant effect on the amount and chemical composition of water moving through the soil profile
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Paludi, Michele, ed. Managing Diversity in Today's Workplace. Praeger, 2012. http://dx.doi.org/10.5040/9798216977179.

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This four-volume set provides updated empirical research and best practices for understanding and managing workplace diversity in the 21st century, including issues of gender, race, generation, disability, sexual orientation, national origin, and age. As the demographics of workplaces in the United States continue to evolve to include more women employees, a growing percentage of aged employees, and greater racial diversity, a broad understanding of human resource management issues in multiple functions is necessary. Today's workplace professionals need to be up to speed on best practices for
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Paludi, Michele, ed. Managing Diversity in Today's Workplace. Praeger, 2012. http://dx.doi.org/10.5040/9798216977193.

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This four-volume set provides updated empirical research and best practices for understanding and managing workplace diversity in the 21st century, including issues of gender, race, generation, disability, sexual orientation, national origin, and age. As the demographics of workplaces in the United States continue to evolve to include more women employees, a growing percentage of aged employees, and greater racial diversity, a broad understanding of human resource management issues in multiple functions is necessary. Today's workplace professionals need to be up to speed on best practices for
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Paludi, Michele A., ed. Managing Diversity in Today's Workplace. ABC-CLIO, LLC, 2012. http://dx.doi.org/10.5040/9798216977186.

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This four-volume set provides updated empirical research and best practices for understanding and managing workplace diversity in the 21st century, including issues of gender, race, generation, disability, sexual orientation, national origin, and age. As the demographics of workplaces in the United States continue to evolve to include more women employees, a growing percentage of aged employees, and greater racial diversity, a broad understanding of human resource management issues in multiple functions is necessary. Today's workplace professionals need to be up to speed on best practices for
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Paludi, Michele, ed. Managing Diversity in Today's Workplace. Praeger, 2012. http://dx.doi.org/10.5040/9798216977162.

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This four-volume set provides updated empirical research and best practices for understanding and managing workplace diversity in the 21st century, including issues of gender, race, generation, disability, sexual orientation, national origin, and age. As the demographics of workplaces in the United States continue to evolve to include more women employees, a growing percentage of aged employees, and greater racial diversity, a broad understanding of human resource management issues in multiple functions is necessary. Today's workplace professionals need to be up to speed on best practices for
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Cunningham-Hill, Susan, and Karen Elder. 19. Trial, Settlement, and Appeals. Oxford University Press, 2018. http://dx.doi.org/10.1093/he/9780198823193.003.0019.

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Although a large percentage of civil cases are settled well in advance of trial, it remains important for legal representatives look to the possibility of running a case to trial. This chapter focuses on fast-track and multi-track cases that proceed to trial. It covers professional conduct issues; procedural and administrative preparation for trial; the day of the trial; judgment and appeals. It also discusses settlement without trial.
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Hays, Jo N. Epidemics and Pandemics. ABC-CLIO, 2005. http://dx.doi.org/10.5040/9798400647055.

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Balancing current and historical issues, this volume of essays covers the most significant worldwide epidemics from the Black Death to AIDS. Great pandemics have resulted in significant death tolls and major social disruption. Other "virgin soil" epidemics have struck down large percentages of populations that had no previous contact with newly introduced microbes. Written by a specialist in the history of science and medicine, the essays in this volume discuss pandemics and epidemics affecting Europe, the Americas, Africa, and Asia, covering diseases in ancient times to the present. Each entr
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Bullock, III, Charles S., Susan A. MacManus, Jeremy D. Mayer, and Mark J. Rozell. African American Statewide Candidates in the New South. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780197607428.001.0001.

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African American candidates for statewide office in the United States face unique challenges given the nation’s complicated racial dynamics. At the dawn of the twenty-first century, the United States had elected only one African American as governor in its history—L. Douglas Wilder, a grandson of slaves who achieved this historic goal in 1989 in Virginia, once the capital of the Confederacy. Numerous media accounts at the time declared a major breakthrough in racial politics in the United States with one national news magazine actually featuring in bold type on its cover “The End of the Civil
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Wajdzik, Marek. Zmienność cech fenotypowych samców sarny europejskiej (Capreolus capreolus L.) na tle gospodarowania jej populacją w północno-zachodniej Małopolsce. Publishing House of the University of Agriculture in Krakow, 2019. http://dx.doi.org/10.15576/978-83-66602-45-8.

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The objective of the present work was to evaluate the individual quality of male European roe deer by statistical analysis of antler traits, craniometric characters, and age of hunter-harvested bucks. Those measurements enabled a reliable assessment of antler quality, changes in carcass weight with age and between hunting seasons, as well as phenotypic traits depending on habitat (percentage forest cover, geographic mesoregion). The work also aimed to assess the effectiveness of deer population management in the Cracow Region of the Polish Hunting Association and determine the potential of tha
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Kastner, Justin J., ed. Food and Agriculture Security. ABC-CLIO, LLC, 2010. http://dx.doi.org/10.5040/9798400652240.

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This work is a historical, multidisciplinary explanation of the complexities of the food system in the United States and around the world, spanning the beginning of the modern era to today's globalized, interconnected market. A revolution in food supply and trade has been ongoing for decades, although most American consumers have been unaware of these changes—after all, to the end buyer, the food seems the same at the supermarket. But today, a large percentage of our food and agricultural products are imported to our country, and the U.S. Department of Homeland Security has designated Food and
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Book chapters on the topic "Percentage cover"

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García-Álvarez, David, Javier Lara Hinojosa, and Francisco José Jurado Pérez. "Global Thematic Land Use Cover Datasets Characterizing Artificial Covers." In Land Use Cover Datasets and Validation Tools. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90998-7_21.

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AbstractThe mapping of artificial covers at a global scale has received increasing attention in recent years. Numerous thematic global Land Use Cover (LUC) datasets focusing on artificial surfaces have been produced at increasingly high spatial resolutions and using methods that ensure improved levels of accuracy. In fact, there are several long time series of maps showing the evolution of artificial surfaces from the 1980s to the present. Most of them allow for change detection over time, which is possible, thanks to the high level of accuracy at which artificial surfaces can be mapped and be
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García-Álvarez, David, and Javier Lara Hinojosa. "Global Thematic Land Use Cover Datasets Characterizing Agricultural Covers." In Land Use Cover Datasets and Validation Tools. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90998-7_20.

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AbstractThere is a wide variety of global thematic Land Use Cover (LUC) datasets characterizing agricultural covers. Most of them focus on cropland areas, providing information on their extent or the percentage of cropland cover on the ground. In some cases, the focus is more specific and they provide information on cropland irrigation practices. In other cases, specific maps charting the extension of different crops are also available. In this chapter, we review 8 different datasets with a spatial resolution of at least 1 km. There are many other datasets characterizing agricultural covers at
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Tausch, Arno. "Results from the Bivariate and Multivariate Analysis of Homonegativity." In SpringerBriefs in Political Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-66202-7_5.

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AbstractOur estimates of global homonegativity based on rates of disapproval of homosexual neighbours cover more than 90% of the world's population and are based on research results from 88 countries covert in the World Values Survey and the European Values Study. These data give the population-weighted result of a global percentage of homonegative people of around 55%. We present our research findings on the drivers of homonegativity using correlations, partial correlations and factor analysis, examining the effects of individual global attitudes on secularism, democracy, tolerance and religi
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Häkkinen, Henry, Silviu O. Petrovan, Nigel G. Taylor, William J. Sutherland, and Nathalie Pettorelli. "5. Loons/Divers and Grebes (Gaviidae and Podicipedidae)." In Seabirds in the North-East Atlantic. Open Book Publishers, 2023. http://dx.doi.org/10.11647/obp.0343.05.

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With key information linked to thematic maps, this section evaluates the climate change vulnerability of five species of loons/divers and grebes (Gaviidae and Podicipedidae) – Arctic Loon, Common Loon, Red-Throated Loon, Horned Grebe, and Red-necked Grebe – in the North-East Atlantic. The assessments for every species cover three categories each: the exposure, or the magnitude in percentage and the characteristics of climate change; the sensitivity, or how much and by which climatic events the species are affected, depending on their biological features; the adaptive capacity, or the potential
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Häkkinen, Henry, Silviu O. Petrovan, Nigel G. Taylor, William J. Sutherland, and Nathalie Pettorelli. "7. Skuas (Stercorariidae)." In Seabirds in the North-East Atlantic. Open Book Publishers, 2023. http://dx.doi.org/10.11647/obp.0343.07.

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With key information linked to thematic maps, this section evaluates the climate change vulnerability of three skuas (Stercorariidae) species – Great Skua, Long-tailed Jaeger, and Arctic Jaeger – in the North-East Atlantic. The assessments for every species cover three categories each: the exposure, or the magnitude in percentage and the characteristics of climate change; the sensitivity, or how much and by which climatic events the species are affected, depending on their biological features; the adaptive capacity, or the potential of species to respond to climate change. Assessments of local
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Häkkinen, Henry, Silviu O. Petrovan, Nigel G. Taylor, William J. Sutherland, and Nathalie Pettorelli. "3. Gannets and Cormorants (Sulidae and Phalacrocoracidae)." In Seabirds in the North-East Atlantic. Open Book Publishers, 2023. http://dx.doi.org/10.11647/obp.0343.03.

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With key information linked to thematic maps, this section evaluates the climate change vulnerability of three species of gannets and cormorants (Sulidae and Phalacrocoracidae) – Northern Gannet, European Shag, and Great Cormorant – in the North-East Atlantic. The assessments for every species cover three categories each: the exposure, or the magnitude in percentage and the characteristics of climate change; the sensitivity, or how much and by which climatic events the species are affected, depending on their biological features; the adaptive capacity, or the potential of species to respond to
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Häkkinen, Henry, Silviu O. Petrovan, Nigel G. Taylor, William J. Sutherland, and Nathalie Pettorelli. "1. Auks (Alcidae)." In Seabirds in the North-East Atlantic. Open Book Publishers, 2023. http://dx.doi.org/10.11647/obp.0343.01.

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With key information linked to thematic maps, this section evaluates the climate change vulnerability of six auks (Alcidae) species – Razorbill, Little Auk, Black Guillemot, Atlantic Puffin, Common Murre, and Thick-billed Murre – in the North-East Atlantic. The assessments for every species cover three categories each: the exposure, or the magnitude in percentage and the characteristics of climate change; the sensitivity, or how much and by which climatic events the species are affected, depending on their biological features; the adaptive capacity, or the potential of species to respond to cl
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Häkkinen, Henry, Silviu O. Petrovan, Nigel G. Taylor, William J. Sutherland, and Nathalie Pettorelli. "8. Terns (Laridae)." In Seabirds in the North-East Atlantic. Open Book Publishers, 2023. http://dx.doi.org/10.11647/obp.0343.08.

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With key information linked to thematic maps, this section evaluates the climate change vulnerability of five terns (Laridae) species – Arctic Tern, Little Tern, Roseate Tern, Sandwich Tern, and Caspian Tern – in the North-East Atlantic. The assessments for every species cover three categories each: the exposure, or the magnitude in percentage and the characteristics of climate change; the sensitivity, or how much and by which climatic events the species are affected, depending on their biological features; the adaptive capacity, or the potential of species to respond to climate change. Assess
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Häkkinen, Henry, Silviu O. Petrovan, Nigel G. Taylor, William J. Sutherland, and Nathalie Pettorelli. "2. Ducks and Phalaropes (Antidae and Scolopacidae)." In Seabirds in the North-East Atlantic. Open Book Publishers, 2023. http://dx.doi.org/10.11647/obp.0343.02.

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With key information linked to thematic maps, this section evaluates the climate change vulnerability of ten species of ducks and phalaropes (Anatidae and Scolopacidae) – Long-tailed Duck, Harlequin Duck, Velvet Scoter, Common Scoter, Red-breasted Merganser, Red Phalarope, Red-necked Phalarope, Steller’s Eider, Common Eider, and King Eider – in the North-East Atlantic. The assessments for every species cover three categories each: the exposure, or the magnitude in percentage and the characteristics of climate change; the sensitivity, or how much and by which climatic events the species are aff
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Häkkinen, Henry, Silviu O. Petrovan, Nigel G. Taylor, William J. Sutherland, and Nathalie Pettorelli. "6. Petrels and Shearwaters (Hydrobatidae and Procellariidae)." In Seabirds in the North-East Atlantic. Open Book Publishers, 2023. http://dx.doi.org/10.11647/obp.0343.06.

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With key information linked to thematic maps, this section evaluates the climate change vulnerability of six species of petrels and shearwaters (Hydrobatidae and Procellariidae) – Cory’s Shearwater, Northern Fulmar, Band-rumped Storm-petrel, Leach’s Storm-petrel, European Storm-petrel, and Manx Shearwater – in the North-East Atlantic. The assessments for every species cover three categories each: the exposure, or the magnitude in percentage and the characteristics of climate change; the sensitivity, or how much and by which climatic events the species are affected, depending on their biologica
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Conference papers on the topic "Percentage cover"

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Amez, Isabel, Blanca Castells, David Bolonio, David Leon, and Marcelo Leon. "CAN BIOGAS CONTRIBUTE TO PURE HYDROGEN COMBUSTION?" In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/4.1/s17.06.

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Hydrogen combustion is presented as a potential solution to cover the heat demand with renewable energies. However, current technologies do not allow the combustion of pure hydrogen and it must often be mixed with fossil fuels. Carbon dioxide (CO2) has proven to be useful for stabilizing hydrogen combustion, as has methane (CH4). Therefore, this research proposes the use of biogas as a stabilizer of pure hydrogen combustion. For this purpose, experimental tests were carried out, burning a lean biogas (BG 50% CH4) and a medium biogas (BG 60% CH4). Each biogas was burned in a commercial biogas b
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Hartt, William H. "A Methodology for Projecting Time-to-Corrosion Initiation and Cracking/ Delamination for Reinforced Concrete with an Admixed Corrosion Inhibitor." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01074.

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Abstract An equation from the literature was modified such that the cumulative distribution function (CDF) of Cl- concentration in concrete at the reinforcement depth after a given exposure time was calculated by numerical integration. The approach accommodated the fact that surface Cl- concentration (Cs), the effective diffusion coefficient (D), and cover (x) are distributed rather than discreet variables. Calculations were performed for a range of mean D, Cs, and x values. Limiting concentrations of Cl- for which various previously reported dosages of the corrosion inhibitor calcium nitrite
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Snopoli, David, Georges Devilliers, and Patricia Dias. "Corrosion Prediction for Helicopter Application for Maintenance." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1273.

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Corrosion occurs in diverse environments mainly on metallic parts. Helicopters are made of a huge percentage of metallic parts and need to have several maintenance steps to guarantee its functioning and its durability. The military helicopters are flying in different kinds of environment, which cover large spectrum of severity of the atmospheric corrosion [1]. In maritime conditions, the most influencing factor is the Time of Wetness, which is a direct result Relative Humidity and Salt loading. The main material used for aircraft and that is suffering from corrosion is aluminium. There are ple
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Hartt, William H. "Chloride Exposure of Reinforced Concrete with an Admixed Corrosion Inhibitor: Part I – Time to Corrosion Initiation Neglecting Inhibitor Egress." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3635.

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Abstract A first principles based equation from the literature was modified such that the cumulative distribution function (CDF) of Cl− concentration ([Cl−]) in concrete at the reinforcement depth after a given exposure time was calculated by numerical integration. The approach accommodates the fact that surface Cl− concentration (Cs), the effective diffusion coefficient (D), and reinforcement cover (x) each conform to a distribution, rather than being discreet. Calculations were performed for a range of mean D, Cs, and x values. The previously reported limiting [Cl−] for which various dosages
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Hartt, William H. "A Protocol for Projecting Time-to-Corrosion of Reinforcing Steel in Concrete Exposed to Chlorides." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10123.

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Abstract A protocol is described whereby time-to-corrosion, Ti, of reinforcing steel in concrete exposed to chlorides was calculated as a distributed, rather than discrete, parameter. The method consists of inputting 1) an average value for surface [Cl-] and the effective diffusion coefficient, 2) the mean and standard deviation of concrete cover over the reinforcement, and 3) a distribution function for the critical Cl- threshold concentration to initiate corrosion, CT, based upon values previously reported. The calculation result is a cumulative distribution function (CDF) plot of Ti. Exampl
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Wicaksono, Pramaditya, Wahyu Lazuardi, Muhammad Kamal, and Afif Al Hadi. "Machine-learning regression for coral reef percentage cover mapping." In Remote Sensing of the Open and Coastal Ocean and Inland Waters, edited by Robert J. Frouin and Hiroshi Murakami. SPIE, 2018. http://dx.doi.org/10.1117/12.2324028.

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Cindewiyani, H. Herdiansyah, and M. P. Patria. "Coral cover percentage for sustainable marine protected area management in Tidung Island." In THE 2ND INTERNATIONAL CONFERENCE ON SCIENCE, MATHEMATICS, ENVIRONMENT, AND EDUCATION. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5139750.

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Zribi, Mehrez, Naima Aqid, Eilon Adar, Jose C. Garcia, and Giovanni Macelloni. "Modeling of stone cover percentage over bare soil using ERS2 radar measurements on semi-arid regions." In International Symposium on Remote Sensing, edited by Manfred Owe and Guido D'Urso. SPIE, 2002. http://dx.doi.org/10.1117/12.454201.

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Liang, Wei-zhen, Joseph Oboamah, Xin Qiao, et al. "Development an edge-computing sensing unit for continuous measurement of canopy cover percentage of dry edible beans." In 2022 Houston, Texas July 17-20, 2022. American Society of Agricultural and Biological Engineers, 2022. http://dx.doi.org/10.13031/aim.202201238.

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Fathoni, Mohammad Naufal, Pramaditya Wicaksono, and Syamsul Bachri. "Estimated change in the percentage of vegetation cover after the eruption of Mount Agung, Bali in 2017." In Seventh Geoinformation Science Symposium, edited by Pramaditya Wicaksono and Sandy Budi Wibowo. SPIE, 2021. http://dx.doi.org/10.1117/12.2617334.

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Reports on the topic "Percentage cover"

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Rosse, Anine. Stream channel monitoring for Wind Cave National Park 2021 Data report. National Park Service, 2023. http://dx.doi.org/10.36967/2296623.

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The Northern Great Plains Inventory and Monitoring Network (NGPN) began stream channel monitoring in Highland Creek at Wind Cave National Park (WICA) in 2021. This data report summarizes the data collected during the 2021 season pertaining to watershed, reach, and physical habitat. After data are collected for at least four cycles, trends may be reported. This report covers three main areas: 1) Reporting on upland channel characteristics data that may affect habitat such as: land cover, drainage area, and total stream length; 2) Reporting of geomorphic dimensions such as: channel widths, bank
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Jones, Graham, Diane Fraser, Urvashi Lallu, and Sarah-Jayne Fenwick. Perceptions and Impacts: An Observational Pilot Study of the Effects of Argentine Ants on Honey Bees in New Zealand. Unitec ePress, 2016. http://dx.doi.org/10.34074/pibs.rs12016.

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The Argentine ant (Linepithema humile) is an invasive species first identified in New Zealand in 1990. It is an aggressive tramp species that can form very large ‘super colonies’ extending over vast areas and has been reported to rob honey and predate honey bees in hives. This pilot study sought to establish, from a circulated survey of beekeepers, which ant species were present in their hives and what awareness the beekeepers had of the potential impact of Argentine ants. In addition, a simple method of quantifying the effects of the Argentine ant on brood abundance was trialled in the field.
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Fitzpatrick, Patrick, and Yee Lau. CONCORDE Meteorological Analysis (CMA) - Data Guide. The University of Southern Mississippi, 2023. http://dx.doi.org/10.18785/sose.003.

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CONCORDE is the CONsortium for oil spill exposure pathways in COastal River-Dominated Ecosystems (CONCORDE), and is an interdisciplinary research program funded by the Gulf of Mexico Research Initiative (GoMRI) to conduct scientific studies of the impacts of oil, dispersed oil and dispersant on the Gulf’s ecosystem (Greer et al. 2018). A CONCORDE goal is to implement a synthesis model containing circulation and biogeochemistry components of the Northern Gulf of Mexico shelf system which can ultimately aid in prediction of oil spill transport and impacts. The CONCORDE Meteorological Analysis (C
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Cotten, David, Brandon Adams, Nancy O'Hare, et al. Vegetation mapping at Chattahoochee River National Recreation Area: Photointerpretation key and final vegetation map. National Park Service, 2019. https://doi.org/10.36967/2266958.

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The University of Georgia Department of Geography’s Center for Geospatial Research (CGR), with the support of the National Park Service (NPS) Vegetation Mapping Inventory (VMI) Program, described and mapped vegetation at Chattahoochee River National Recreation Area (CHAT). This mapping effort was accomplished through collaboration with the NPS Southeast Coast Network (SECN), the North Carolina office of NatureServe (Durham, N.C.), and Atkins North America, Inc. Through the use of NatureServe vegetation plots, aerial photos, and data collected in the field, vegetation communities were delineate
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Fehey, Kristina, and Dustin Perkins. Invasive exotic plant monitoring in Capitol Reef National Park: 2019 field season, Scenic Drive and Cathedral Valley Road. Edited by Alice Wondrak Biel. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2286627.

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Invasive exotic plant (IEP) species are a significant threat to natural ecosystem integrity and biodiversity, and controlling them is a high priority for the National Park Service. The North-ern Colorado Plateau Network (NCPN) selected the early detection of IEPs as one of 11 monitoring protocols to be implemented as part of its long-term monitoring program. From May 30 to June 1, 2019, network staff conducted surveys for priority IEP species along the Scenic Drive and Cathedral Valley Road monitoring routes at Capitol Reef National Park. We detected 119 patches of six priority IEP species alo
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Perkins, Dustin. Invasive exotic plant monitoring in Capitol Reef National Park: 2020 and 2021 field seasons. National Park Service, 2022. http://dx.doi.org/10.36967/2294094.

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Invasive exotic plant (IEP) species are a significant threat to natural ecosystem integrity and biodiversity. Controlling them is a high priority for the National Park Service. The Northern Colorado Plateau Network (NCPN) selected the early detection of IEPs as one of 11 moni-toring protocols to be implemented as part of its long-term monitoring program. From June 5 to July 29, 2020, and May 30 to June 2, 2021, network staff conducted surveys for priority IEP species along the Oak Creek, Pleasant Creek, and State Route 24 monitoring routes at Capitol Reef National Park. We detected 834 patches
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Berniell, Inés, Mariana Marchionni, Julián Pedrazzi, and Mariana Viollaz. Women Political Leaders as Agents of Environmental Change. Inter-American Development Bank, 2025. https://doi.org/10.18235/0013521.

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This paper explores how female political leaders impact environmental outcomes and climate change policy actions using data from mixed-gender mayoral races in Brazil. We rely on a Regression Discontinuity design that compares municipalities where women narrowly won the election with those where men narrowly won. This strategy allows us to identify the causal effect of a woman winning the mayoral election. We find that, compared to male mayors, female mayors significantly reduce greenhouse gas emissions and deforestation in the municipalities with Amazon biome. Specifically, when a woman wins t
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Lasko, Kristofer, Francis O’Neill, and Elena Sava. Automated mapping of land cover type within international heterogenous landscapes using Sentinel-2 imagery with ancillary geospatial data. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/49367.

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A near-global framework for automated training data generation and land cover classification using shallow machine learning with low-density time series imagery does not exist. This study presents a methodology to map nine-class, six-class, and five-class land cover using two dates of a Sentinel-2 granule across seven international sites. The approach uses a series of spectral, textural, and distance decision functions combined with modified ancillary layers to create binary masks from which to generate a balanced set of training data applied to a random forest classifier. For the land cover m
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Mwamba, Isaiah C., Deepak Benny, Ajuna P. John, et al. Updating Cost Allocation and Revenue Attribution. Purdue University, 2024. http://dx.doi.org/10.5703/1288284317764.

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This report presents a synopsis of the results from the 2024 study commissioned by the Indiana Department of Transportation (INDOT) in fall 2023 at the request of the Indiana General Assembly. Expenditures: Lighter vehicle classes saw their share of cost responsibility decline between 2015 and 2024, while the heavier vehicle classes saw their responsibilities increase within this period. This change is explained by a diametric shift in expenditure type patterns between the two eras from construction-dominant to maintenance-dominant expenditures. In this context, it is worth noting that these e
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Randrup, Thomas B., Agnes Pierre, Niel Sang, and Kjell Nilson. Equity in Green Space Planning and Management : synthesis study on data availability for the development of a socio-ecological index. SLU Movium Think Tank, 2025. https://doi.org/10.54612/a.7h5gdnod5n.

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As cities densify to meet environmental and economic goals, the equitable distribution of urban green spaces (UGS) becomes critical for fostering community well-being, promoting environmental justice, and enhancing climate resilience. This report presents a synthesis study conducted by the Swedish University of Agricultural Sciences (SLU) in collaboration with Nilsson Landscape, aimed at understanding the relationship between socio-economy and accessibility to UGS, to assess and enhance green equity in urban environments. The research focuses on Malmö specifically, and have involved Region Skå
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