Relevant bibliographies by topics / Species displacement

Academic literature on the topic 'Species displacement'

Author: Grafiati
Published: 4 June 2021
Last updated: 27 April 2022

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Journal articles on the topic "Species displacement"

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Lundberg, Sigfrid, and Nils Chr Stenseth. "Coevolution of competing species: Ecological character displacement." Theoretical Population Biology 27, no. 2 (April 1985): 105–19. http://dx.doi.org/10.1016/0040-5809(85)90006-1.

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Huxel, Gary R. "Rapid displacement of native species by invasive species: effects of hybridization." Biological Conservation 89, no. 2 (July 1999): 143–52. http://dx.doi.org/10.1016/s0006-3207(98)00153-0.

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Gotoh, Tetsuo, Masumi Hanawa, Sayaka Shimazaki, Natsuki Yokoyama, Chun-Qing Fu, Reo Sugawara, and Shuichi Yano. "Factors determining species displacement of related predatory mite species (Acari: Phytoseiidae)." Experimental and Applied Acarology 63, no. 2 (February 11, 2014): 205–15. http://dx.doi.org/10.1007/s10493-014-9769-z.

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McLain, Denson Kelly, and Donald J. Shure. "Pseudocompetition: Interspecific Displacement of Insect Species through Misdirected Courtship." Oikos 49, no. 3 (July 1987): 291. http://dx.doi.org/10.2307/3565763.

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Jaeger, Robert G., Ethan D. Prosen, and Dean C. Adams. "Character Displacement and Aggression in Two Species ofTerrestrial Salamanders." Copeia 2002, no. 2 (May 2002): 391–401. http://dx.doi.org/10.1643/0045-8511(2002)002[0391:cdaait]2.0.co;2.

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Ferretti, Francesco, and Emiliano Mori. "Displacement interference between wild ungulate species: does it occur?" Ethology Ecology & Evolution 32, no. 1 (November 4, 2019): 2–15. http://dx.doi.org/10.1080/03949370.2019.1680447.

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Matthew, Richard, Elaine (Lan Yin) Hsiao, Philippe Le Billon, and Galeo Saintz. "Species on the Move: Environmental Change, Displacement and Conservation." Annals of the American Association of Geographers 112, no. 3 (February 9, 2022): 654–63. http://dx.doi.org/10.1080/24694452.2021.1999200.

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Nilsson, Christer, and Gunnel Grelsson. "The effects of litter displacement on riverbank vegetation." Canadian Journal of Botany 68, no. 4 (April 1, 1990): 735–41. http://dx.doi.org/10.1139/b90-097.

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The hypotheses that litter deposition on riverbanks would depend on riverbank features and that litter mass would affect riverbank vegetation were tested by sampling vegetation, litter, and soil along a seventh-order stretch of the unregulated Vindel River in northern Sweden. Sampling was carried out within a horizontal litter gradient at the top of the riverbank where most of the litter deposition occurs. The amount of leaf litter left on the riverbank after flooding was significantly correlated (P < 0.05) with soil organic matter. In contrast, wood litter mass and total litter mass were not correlated (P > 0.05) with riverbank features such as soil organic matter, riverbank slope, or stem density. Species richness, species diversity, and the proportions of stemmed and nonstemmed species showed quadratic relationships (P < 0.05) with leaf litter mass, whereas ground vegetation cover decreased monotonically (P < 0.05) with increasing leaf litter mass. Tall, stemmed species were most frequent at eroded sites with low amounts of leaf litter and at sites where leaf litter had accumulated. In contrast, the highest proportion of low-growing species was found at sites with intermediate leaf litter masses. Community characteristics such as species richness, species diversity, and the proportions of stemmed and nonstemmed species (but not ground vegetation cover) were less strongly correlated with wood litter mass and total litter mass. Linear equations explained about half of the variation in ground vegetation cover along gradients of wood and total litter masses. Density and richness of seeds increased with increasing litter mass. We discuss the litter effects in terms of productivity and disturbance and conclude that flooding in pristine rivers may exert a considerable influence on riverbank vegetation as a result of litter displacement.
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Tukiainen, Pekka, and Mark Hughes. "The fracture behavior of birch and spruce in the radial-tangential crack propagation direction at the scale of the growth ring." Holzforschung 67, no. 6 (August 1, 2013): 673–81. http://dx.doi.org/10.1515/hf-2012-0139.

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Abstract Crack-tip displacement fields have been computed based on digital image correlation for spruce (Picea abies [L.] Karst.) and birch (Betula pendula Roth.) wood, which were submitted to pure mode I loading in the RT-direction under both green and air-dried conditions. Moreover, crack propagation was modeled based on both linear elastic fracture mechanics (LEFM) and nonlinear fracture mechanics, relying on the fictitious crack model (FCM). The measured and modeled load versus the crack-mouth opening displacement (CMOD) curves and displacement fields were compared. In the case of spruce, the load-CMOD curves simulated by the FCM coincide well with the measured ones. On the contrary, measured near crack-tip displacement fields in both green and air-dried spruce are better comparable with the LEFM predictions than with the FCM predictions. In the case of green birch, the simulated FCM curve follows the measured curve quite well, but in air-dried birch the simulated FCM curve has a better fit than the LEFM-curve only before maximum load. In birch, the FCM predicts the displacement fields better than the LEFM. In both species, moisture content has a big effect on the softening behavior. In both spruce and birch, the FCM overestimates the displacements ahead of crack tip, whereas the LEFM model underestimates the displacements.
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Evans, Edward W. "HABITAT DISPLACEMENT OF NORTH AMERICAN LADYBIRDS BY AN INTRODUCED SPECIES." Ecology 85, no. 3 (March 2004): 637–47. http://dx.doi.org/10.1890/03-0230.

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Dissertations / Theses on the topic "Species displacement"

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Short, Kristen. "Population genetic structure and species displacement during range expansion of invasive geckos." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1289840091.

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DAME, ELIZABETH. "BEHAVIORAL MECHANISMS OF INVASION AND DISPLACEMENT IN PACIFIC ISLAND GECKOS." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1100810530.

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Reifova, Radka, Jiri Reif, Marcin Antczak, and Michael Nachman. "Ecological character displacement in the face of gene flow: Evidence from two species of nightingales." BioMed Central, 2011. http://hdl.handle.net/10150/610382.

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BACKGROUND:Ecological character displacement is a process of phenotypic differentiation of sympatric populations caused by interspecific competition. Such differentiation could facilitate speciation by enhancing reproductive isolation between incipient species, although empirical evidence for it at early stages of divergence when gene flow still occurs between the species is relatively scarce. Here we studied patterns of morphological variation in sympatric and allopatric populations of two hybridizing species of birds, the Common Nightingale (Luscinia megarhynchos) and the Thrush Nightingale (L. luscinia).RESULTS:We conducted principal component (PC) analysis of morphological traits and found that nightingale species converged in overall body size (PC1) and diverged in relative bill size (PC3) in sympatry. Closer analysis of morphological variation along geographical gradients revealed that the convergence in body size can be attributed largely to increasing body size with increasing latitude, a phenomenon known as Bergmann's rule. In contrast, interspecific interactions contributed significantly to the observed divergence in relative bill size, even after controlling for the effects of geographical gradients. We suggest that the divergence in bill size most likely reflects segregation of feeding niches between the species in sympatry.CONCLUSIONS:Our results suggest that interspecific competition for food resources can drive species divergence even in the face of ongoing hybridization. Such divergence may enhance reproductive isolation between the species and thus contribute to speciation.
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Rowland, Lindsey Claire. "Relationship of Reproductive Timing and Climate Change to the Displacement of Peromyscus maniculatus gracilis by Peromyscus leucopus noveboracensis." Miami University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=miami1055963515.

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Mateus, Pedro Miguel Veríssimo. "Ditopic molecular architectures for the recognition of anionic species." Doctoral thesis, Universidade Nova de Lisboa. Instituto de Tecnologia Química e Biológica, 2011. http://hdl.handle.net/10362/6859.

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Dissertation presented to obtain the Ph.D degree in Chemistry
Anions are ubiquitous and very important species in biological, medicinal, industrial and environmental processes. In biology, anions are essential for normal metabolic functions, where their specific recognition, transport and detection play a very important role. On the other hand, the uncontrolled release of anions into the environment poses a significant threat. The development of synthetic receptors capable of sequestering anions should, therefore, provide solutions to a number of problems of current interest. To be suitable for real-life applications, as for instance the detection and quantification of biologically active anions in clinical laboratories or the environmental monitoring and/or removal of pollutants, synthetic receptors need to be able to function in aqueous solution. However, due to the high dielectric constant and good hydrogen bond donor and acceptor capabilities, water is the most challenging medium for anion recognition.(...)
The work described in this thesis was entirely carried out in Instituto de Tecnologia Química e Biológica, Oeiras, Portugal. Pedro Mateus has received financial support from Fundação para a Ciência e Tecnologia, ref. SFRH/BD/36159/2007.
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Klayman, Benjamin Joseph. "A quantitative description at multiple scales of observation of accumulation and displacement patterns in single and dual-species biofilms." Diss., Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/klayman/KlaymanB0807.pdf.

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Comes, Navarro María. "Hybrid inorganic-organic materials for the optical recognition of neutral and anionic species." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/62153.

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[EN] The doctoral thesis presented under the title "Hybrid inorganic-organic materials for the optical recognition of neutral and anionic species" has had as its main objective the synthesis and characterization of organic-inorganic hybrid materials based on the combination of the principles of Supramolecular Chemistry and Materials Science. Recent studies confirm that cooperation between these two areas of Chemistry allow the simulation of what natural living beings have been doing for millions of years in a natural way. At cellular level, many vital functions are related to the ability of a particular receptor to recognize a particular species, giving a specific answer. But what is more interesting is that in living organisms, most of these systems do not exist as dissolved molecules, but are bounded to a (bio)organic skeleton with more or less flexibility. When we imitated these systems bearing in mind the supramolecular and analytical chemistry, we find that we need a sensory molecule able to join with the specie that we want to detect and at the same time, this union must produce a change in its physico-chemical properties giving as a result a signal. But moreover, if we take advantatge of the fact that siliceous nanostructured materials present a high physical and chemical stability and that they have cavities where the sensor system can be incorporated into, we have the synthetic hybrid organic-inorganic combination similar to the natural one. In order to develop this idea, we have used sensor systems widely studied in molecular recognition processes in aqueous media and we have applied them to the inorganic-organic hydrid materials. Therefore, the present work thesis has been structured in two parts: on the one hand, the synthesis and characterization of the functionalized inorganic porous solid materials by the study and detection of amines using the "chemodosimeter" approach. On the other hand, we have made the synthesis and characterization of the organic functionalized inorganic porous solid materials for the study and detection of anionic species through the displacement assays approach.
[ES] La tesis doctoral que se presenta bajo el título "Hybrid inorganic-organic materials for the optical recognition of neutral and anionic species" ha tenido como objetivo principal la síntesis y caracterización de materiales híbridos orgánico-inorgànicos basados en la combinación de los principios de la Química Supramolecular y la Ciencia de los Materiales. Recientes estudios corroboran que la cooperación entre estas dos áreas de la Química permite simular lo que ya hace millones de años realizan de forma natural los organismos vivos. A nivel celular, muchas de las funciones vitales están relacionadas con la habilidad de un receptor concreto para reconocer una determinada especie, dando una respuesta específica. Pero lo que resulta más interesante, es que en los organismos vivos, la mayoría de estos sistemas no existen en forma de moléculas disueltas, sino que están unidos con mayor o menor flexibilidad a un esqueleto bio(in)orgánico. Cuando imitamos estos sistemas teniendo en cuenta la química supramolecular y analítica, nos encontramos que necesitamos de una molécula indicadora que sea capaz de unirse a la especie que queremos detectar y que a su vez, esta unión produzca un cambio en las propiedades físico-químicas de la entidad para producir una señal. Pero además, si aprovechamos el hecho de que los materiales silíceos nanoestructurados presentan una alta estabilidad física y química y que proporcionan cavidades donde alojar al sistema sensor, tenemos la combinación híbrida orgánico-inorgánico sintética similar a la natural. Con el objetivo de desarrollar esta idea, hemos utilizado sistemas sensores ampliamente estudiados en procedimientos de reconocimiento molecular en disolución acuosa y los hemos aplicado a los materiales híbridos orgánico-inorgànicos. De esta manera, el trabajo de tesis se ha estructurado en dos partes: por una parte, la síntesis y caracterización de materiales sólidos inorgánicos porosos funcionalizados para el estudio y detección de aminas utilizando el procedimiento de "dosímetro químico", y en una segunda parte, se ha llevado a cabo la síntesis y caracterización de sólidos inorgánicos porosos funcionalizados para el estudio y detección de especies aniónicas mediante el procedimiento de "ensayos por desplazamiento".
[CA] La tesis doctoral que es presenta sota el títol "Hybrid inorganic-organic materials for the optical recognition of neutral and anionic species" ha tingut com objectiu principal la síntesi i caracterització de materials híbrids orgànic-inorgànics basats en la combinació dels principis de la Química Supramolecular i la Ciència dels Materials. Estudis recents corroboren que la cooperació entre aquestes dues àrees de la Química permet simular el que ja fa milions d'anys realitzen de forma natural els organismes vius. A nivell cel·lular, moltes de les funcions vitals estan relacionades amb l'habilitat d'un receptor concret per a reconèixer una espècie determinada, donant una resposta específica. Però el que és més interessant, és que als organismes vius, la majoria d'aquests sistemes no existeixen en forma de molècules dissoltes, sinó que estan units amb major o menor flexibilitat a un esquelet bio(in)orgànic. Quan imitem aquests sistemes tenint en compte la química supramolecular i analítica, ens trobem que necessitem d'una molècula indicadora que sigui capaç d'unir-se a l'espècie que volem detectar i que alhora, aquesta unió produeixi un canvi en les propietats fisico-químiques de l'entitat per produir una senyal. Però a més, si aprofitem el fet que els materials silícics nanoestructurats presenten una alta estabilitat física i química i que proporcionen cavitats on es pot allotjar el sistema sensor, tenim la combinació híbrida orgànica-inorgànica sintètica semblant a la natural. Per tal de desenvolupar aquesta idea, hem utilitzat sistemes sensors ampliament estudiats en procediments de reconeixement molecular en dissolució aquosa i els hem aplicat als materials híbrids orgànic-inorgànics. Així el present treball de Tesis s'ha estructurat en dues parts: per una banda, la síntesis i caracterització de materials sòlids inorgànics porosos funcionalitzats per l'estudi i detecció d'amines utilitzant el procediment de "dosímetre químic", i en una segona part, s'ha realitzat la síntesis i caracterització de sòlids inorgànics porosos funcionalitzats per a l'estudi i detecció d'espècies aniòniques mitjançant el procediment "d'assajos per desplaçament".
Comes Navarro, M. (2016). Hybrid inorganic-organic materials for the optical recognition of neutral and anionic species [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/62153
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Sorribas, Mellado Juan José. "Biological control of California red scale, Aonidiella aurantii (Hemiptera: Diaspididae): spatial and temporal distribution of natural enemies, parasitism levels and climate effects." Doctoral thesis, Universitat Politècnica de València, 2012. http://hdl.handle.net/10251/14794.

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En muchas áreas citrícolas del mundo el piojo rojo de California (PRC), Aonidiella aurantii (Hemiptera: Diaspididae), está considerado una plaga clave. En el Este de España se ha extendido durante las últimas décadas hasta cubrir una amplia extensión de cítricos. El control químico es difícil y frecuentemente es seguido de infestaciones recurrentes en poco tiempo, de la aparición de resistencias a diferentes productos usados para su control y de la eliminación de enemigos naturales en el campo. La mejora del manejo integrado y las técnicas de control biológico del PRC requieren conocer la composición de los enemigos naturales en cada zona climática, la fluctuación en su abundancia estacional, los niveles de parasitismo y depredación, como se distribuyen en la planta y como son afectados por el clima y el cambio climático. Aunque mucho se ha estudiado en laboratorio sobre los parasitoides Aphytis (Hymenoptera: Aphelinidae), los principales agentes de control del PRC, todavía no se conoce qué combinación de enemigos naturales consigue el mejor nivel de control en el campo, cómo varían los niveles de parasitismo a lo largo del año o cómo los parasitoides se distribuyen y compiten en el campo en relación con el clima. La acción de los Aphytis, ectoparasitoides, es complementada en muchas zonas citrícolas por los endoparasitoides Comperiella bifasciata y Encarsia perniciosi (Hymenoptera: Aphelinidae), los cuales pueden parasitar estadíos diferentes a Aphytis. Muy poco se sabe sobre el comportamiento y las respuestas biológicas bajo diferentes condiciones climáticas de estos endoparasitoides. Del mismo modo, el efecto de los depredadores sobre la población del piojo ha sido raramente estudiado. Actualmente, A. melinus, una especie introducida en el Este de España y el competidor superior, ha desplazado al parasitoide nativo A. chrysomphali de las zonas cálidas y secas ya que puede tolerar mejor las temperaturas cálidas del verano.
Sorribas Mellado, JJ. (2011). Biological control of California red scale, Aonidiella aurantii (Hemiptera: Diaspididae): spatial and temporal distribution of natural enemies, parasitism levels and climate effects [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/14794
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Santos, Figueroa Luis Enrique. "New approaches for the development of chromo-fluorogenic sensors for chemical species of biological, industrial and environmental interest." Doctoral thesis, Universitat Politècnica de València, 2015. http://hdl.handle.net/10251/43216.

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El presente proyecto de investigación está enfocado al desarrollo de sensores químicos fluoro-cromogénicos, para la detección y determinación de especies químicas de interés biológico, industrial y medioambiental de forma selectiva y con alta sensibilidad. En forma general, se busca el diseñar nuevos sistemas sensores basados en compuestos (receptores) formados por dos unidades: una unidad coordinante que interacciona con el anión a determinar y una unidad generadora de señal que alerta del reconocimiento molecular efectuado. Durante este estudio se están preparando diversas moléculas receptoras funcionalizandas con grupos modificadores de estructura para evaluar su influencia sobre las capacidades de detección y selectividad como receptores de especies específicas en diferentes condiciones y medios. Las diferentes aproximaciones en prueba implican a su vez el diseño y síntesis molecular, así como el análisis de las diferentes señales ópticas producidas en el reconocimiento, con el fin de diseñar sistemas de alta eficacia y eficiencia, y con posibilidades reales de aplicación.
Santos Figueroa, LE. (2014). New approaches for the development of chromo-fluorogenic sensors for chemical species of biological, industrial and environmental interest [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/43216
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Sheikh, MD Neaz. "Seismic assessment of buildings in Hong Kong with special emphasis on displacement-based approaches." Thesis, Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B31456662.

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Books on the topic "Species displacement"

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Finney, J. M. A benchmark bending test of a thick specimen. Part II - Surface displacement measurements. Melbourne, Victoria: Aeronautical Research Laboratory, 1993.

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Seminar on Displacement and Rehabilitation of Tribals in India with Special Reference to Andhra Pradesh (1999 NISIET). Displacement and rehabilitation of tribals in India with special reference to Andhra Pradesh. Hyderabad: Tribal Cultural Research and Training Institute, Tribal Welfare Dept., 1993.

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Wittman, David M. Spacetime Geometry. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199658633.003.0011.

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This chapter shows that the counterintuitive aspects of special relativity are due to the geometry of spacetime. We begin by showing, in the familiar context of plane geometry, how a metric equation separates frame‐dependent quantities from invariant ones. The components of a displacement vector depend on the coordinate system you choose, but its magnitude (the distance between two points, which is more physically meaningful) is invariant. Similarly, space and time components of a spacetime displacement are frame‐dependent, but the magnitude (proper time) is invariant and more physically meaningful. In plane geometry displacements in both x and y contribute positively to the distance, but in spacetime geometry the spatial displacement contributes negatively to the proper time. This is the source of counterintuitive aspects of special relativity. We develop spacetime intuition by practicing with a graphic stretching‐triangle representation of spacetime displacement vectors.
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Troisi, Alfonso. Touch. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199393404.003.0008.

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This chapter briefly reviews recent empirical research on touch, including the role of touch in early development, emotions that can be conveyed by touch, the importance of touch for interpersonal relationships, and how friendly touch affects compliance in different situations. Physiological and biochemical effects of touch are also reviewed, including decreased heart rate, blood pressure and cortisol, and increased oxytocin. The beneficial effects of touch, including massage therapy, for socioemotional and physical well-being are explained in light of the importance of mother–infant contact in all primate species. To develop normally, primate infants and human babies need much physical contact with their mothers; touch deprivation is one of the most pathogenic condition for a young primate. The second part of the chapter analyzes how cultural evolution has elaborated the natural predisposition toward affiliative touch, creating complex rituals and specific taboos. Finally, the chapter briefly discusses “displacement activities” that consist mostly of movements focused on one’s own body, such as self-touching, scratching, and self-grooming.
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David, Brewer, Ghosn Louis J, and United States. National Aeronautics and Space Administration., eds. Fracture behavior of ceramics under displacement controlled loading. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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Cleave, Ryan G. Van, and Virgil Suarez. American Diaspora: Poetry of Displacement. University Of Iowa Press, 2001.

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American Diaspora: Poetry of Displacement. University Of Iowa Press, 2001.

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1962-, Suárez Virgil, and Van Cleave, Ryan G., 1972-, eds. American diaspora: Poetry of displacement. Iowa City: University of Iowa Press, 2001.

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Kiszka, Krzysztof. Ruchy osuwiskowe w świetle badań dendrogeomorfologicznych na podstawie analizy osuwiska Sawickiego w Beskidzie Niskim = Landsilde movements based on dendrogeomorphological research based on a analysis of the Sawicki Landslide in the Beskid Niski mts. Instytut Geografii i Przestrzennego Zagospodarowania im. Stanisława Leszczyckiego, Polska Akademia Nauk, 2021. http://dx.doi.org/10.7163/9788361590835.

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Research concerns the problem of landslide movement, which is one of the most important geomorphological processes in the Carpathians. The aim of the studies is to determine the temporal and spatial complexity of landslide activity and to demonstrate the suitability of using different species of conifers in the dendrogeomorphological method. The Sawicki landslide located in Beskid Niski Mts., which is one of the largest landslides in the Polish Flysch Carpathians, was selected for dendrogeomorphological analysis. The dendrogeomorphological method and geomorphological mapping were used in the research. 1078 samples from conifers (fir, spruce, larch and pine) growing on the Sawicki landslide and its immediate surroundings were taken using an increment borer in 2013- 2018. The cores were taken from the upslope and downslope side of the tree stump. The width of annual tree rings were measured for each extracted core sample. The landslide activity was assessed on the basis of the eccentricity, the eccentricity index and its yearly variation. Geological and topographic maps, published data on landslides activity in the research area, precipitation data from the Research Station in Szymbark (Institute of Geography and Spatial Organization Polish Academy of Science) for 1968-2017 and from the meteorological station in Krynica (Institute of Meteorology and Water Management) for 1881-2010 were also used for dendrogeomorphological research of Sawicki landslide. The research shows that the Sawicki landslide is characterized by varied temporal and spatial complexity of landslide activity. The dynamics of displacements within the research sites and research sub-sites, including various fragments of landslides, and movements of colluvial packages is spatially mosaic and chaotic in time. Mass movements covering almost the entire surface of the landslide occurred in the years 1913-1914 and 1974-1975, while in the years 1888, 1906-1907, 1916, 1918, 1929, 1965, 1973, 1980, 1983-1985, 1997 landslide activity was recorded only in its particular parts. The largest variation in the dynamics of landslide movements is characteristic for the period 1970-1985. It was also found that in the initial stage of formation of the landslide tongue, the colluviums movement is disordered. During further downhill movement, the direction of displacement is arranged. Periods of Sawicki landslide activity refers to extremely humid years (62%) and wet years (48%) and they are consistent with the years of landslides activity in Szymbark, listed in the current literature of the subject. The most predisposed conifer species to dendrogeomorphological analysis were spruce, larch and fir. Despite its limitations, the dendrogeomorphological method is a useful tool in landslide activity research.
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R, Halford Gary, and United States. National Aeronautics and Space Administration., eds. Large-displacement structural durability analyses of simple bend specimen emulating rocket nozzle liners. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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Book chapters on the topic "Species displacement"

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Shiva, Vandana. "Species Invasions and the Displacement of Biological and Cultural Diversity." In Invasive Species and Biodiversity Management, 33–45. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4523-7_3.

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Pyšek, Petr, Tim M. Blackburn, Emili García-Berthou, Irena Perglová, and Wolfgang Rabitsch. "Displacement and Local Extinction of Native and Endemic Species." In Impact of Biological Invasions on Ecosystem Services, 157–75. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-45121-3_10.

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Deafalla, Taisser H. H., and Elmar Csaplovics. "Tree Species Classification of the Conflict Regions of Sudan Using RapidEye Satellite Imagery." In The Climate-Conflict-Displacement Nexus from a Human Security Perspective, 293–320. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94144-4_13.

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Lenzner, Bernd, Franz Essl, and Hanno Seebens. "The Changing Role of Europe in Past and Future Alien Species Displacement." In From Biocultural Homogenization to Biocultural Conservation, 125–35. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99513-7_8.

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Günther, Helmut. "Elastic Displacements and Waves." In Elementary Approach to Special Relativity, 261–74. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3168-2_25.

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De Canio, Gerardo, Palle Andersen, Ivan Roselli, Marialuisa Mongelli, and Enrico Esposito. "Displacement Based Approach for a Robust Operational Modal Analysis." In Sensors, Instrumentation and Special Topics, Volume 6, 187–95. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9507-0_19.

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Grahn, Rick, Hussain Karimi, Kyle Wilson, Erik Moro, and Anthony Puckett. "Performance Comparison of Fiber Optic Tips in Interferometric Displacement Measurements." In Sensors, Instrumentation and Special Topics, Volume 6, 227–35. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9507-0_22.

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Chao, Yi, and Dong Jun. "Research on the Influence of Transverse Limit of Support on Construction Monitoring of Special-Shaped Bridge." In Lecture Notes in Civil Engineering, 142–50. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_13.

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AbstractIn order to understand whether the alignment, internal force and cable force of the special-shaped cable-stayed bridge can still meet the design and code requirements due to the influence of the transverse displacement of the support during the construction process, the transverse displacement of the girder arch system is restricted before the removal of the support. The difference between the measured value and the designed value at each stage of the boom is within ±5%, which meets the design and specification requirements. In this paper, the pedestrian bridge in Anyi County, Nanchang City, Jiangxi Province is taken as an example. MADIS/Civil software is used for finite element simulation analysis in the construction stage, and the linear shape, internal force and cable force of the superstructure are monitored. The results show that the measured deformation values of arch ribs and beams meet the design and specification requirements during the whole construction process. The difference between the measured value and the designed value at each stage of the boom is within ±5%, which meets the design and specification requirements.
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Valo, Matti J., Tapio K. Planman, and Kim R. Wallin. "Rotation Point and KJC Estimations for Miniature CT-Specimens Based on Off-Load Line Displacement." In Small Specimen Test Techniques: 6th Volume, 1–11. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2015. http://dx.doi.org/10.1520/stp157620140010.

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Arya, Vinod K., and Gary R. Halford. "Large-Displacement Structural Durability Analyses of Simple Bend Specimen Emulating Rocket Nozzle Liners." In Computational Mechanics ’95, 1285–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79654-8_208.

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Conference papers on the topic "Species displacement"

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Lei, Zhongren. "Interspecific competition and displacement between two invasive leafminer species in Hainan, China." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94874.

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LeBrun, Edward G. "Tawny crazy ant invasion: Chemical weapons and countermeasures, species displacement, and biotic homogenization." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.104874.

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Vande Geest, Jonathan P., and Bruce R. Simon. "Analytical Solutions to Axisymmetric Plane Strain Porous Media-Transport Models in Large Arteries." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-193100.

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Theoretical and numerical finite element models (FEMs) have been developed for analysis of coupled structural-fluid-species transport in soft tissues [1–3]. Here analytical solutions for coupled diffusive-convective transport of a single, neutral species in soft tissues are presented. Based on experimental observations [4], osmotic pressure and partial Onsager coupling of species transport can be neglected for large mobile species in rabbit carotid arteries. These analytical solutions provide a starting point for development of solutions to more complex problems and allow verification of the associated FEMs under development in our laboratory. The analytical solutions will allow comparison of elastic and poroelastic-species transport for axisymmetric, plane strain in thick-walled arteries including expressions for displacement, strain, stress, pore fluid pressure, and concentration fields. The initial models considered here will be steady state (SS) solutions for compressible, linear, isotropic materials undergoing small strains.
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Liu, Mingyan, Kwanghoon Baek, Fransico Argüelles Vivas, Gayan Aruna Abeykoon, and Ryosuke Okuno. "Effects of Surfactant Partitioning Coefficient and Interfacial Tension on the Oil Displacement in Low-Tension Polymer Flooding." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206220-ms.

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Abstract Complex surfactant formulations have been applied to generate an ultra-low interfacial tension (IFT) (e.g., 10-3 dyne/cm) between the displacing water phase and the displaced oil phase in chemical enhanced oil recovery (CEOR), where the residual oil after waterflooding can be largely recovered as an oil bank. This paper is concerned with a simpler, lower-cost CEOR, in which a sole additive of surface active solvent (SAS) makes low-tension displacement fronts in polymer flooding (e.g., 10-2 dyne/cm) without involving ultra-low IFT microemulsion phase behavior. The main objective of this research is to technically verify such low-tension polymer (LTP) flooding for a secondary-mode oil displacement through a sandpack of 9.5 Darcy. Previous research found that 2-ethylhexanol-7PO-15EO (2-EH-7PO-15EO, or "7-15") as SAS was able to reduce the IFT between polymer solution and the reservoir oil from 15.8 dyne/cm to 0.025 dyne/cm. In this research, the effect of SAS partition coefficient on LTP flooding was studied as an additional factor for SAS optimization. In particular, the comparison between two SAS species, 2-EH-4PO-15EO (4-15) and 2-EH-7PO-25EO (7-25), was important, because they had similar IFT values, but markedly different partition coefficients. The IFT was 0.18 dyne/cm with 4-15 and 0.20 dynes/cm with 7-25; and the partition coefficients were 1.61 with 4-15 and 0.68 with 7-25 at the experimental temperature, 61°C. These two SAS species were compared in secondary-mode LTP flooding with a slug of 0.5 wt% SAS for 0.5 pore-volumes injected (PVI). The oil recovery factor at 1.0 PVI was 65% with 4-15 and 67% with 7-25. At 5.0 PVI, it was 74% with 4-15 and 84% with 7-25. Although these two SAS species gave comparable IFT values, their oil-displacement efficiencies were quite different because 7-25 propagated more efficiently in the sandpack with the smaller partition coefficient. The smaller partition coefficient helped the SAS flow more efficiently in the aqueous phase with less retention in the remaining oil. Optimization of SAS likely requires taking a balance between lowering the partition coefficient and lowering the IFT. The SAS recovery at the effluent was 61% for the 4-15 SAS and 78% for the 7-25 SAS. The propagation of the 4-15 SAS was retarded approximately by 1.0 PVI in comparison to that of the 7-25 SAS. The adsorption of the 4-15 and 7-25 SAS were 0.019 mg/g sandpack and 0.020 mg/g sandpack. With a similar IFT reduction, the SAS with a smaller partition coefficient (i.e., 7-25) resulted in less retention, less retardation, and more oil production for a given amount of injection.
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Ahasan, Kawkab, and Jong-Hoon Kim. "Study of Angle-of-Attack (AoA) for Airfoil in Deterministic Lateral Displacement (DLD)." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11708.

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Abstract Deterministic lateral displacement (DLD) is a method of inertial size-based particle separation with potential applications in high throughput sample processing, such as the fractionation of blood or the purification of target species like viral particles or circulating tumor cells. Recently, it has been shown that symmetric airfoils with neutral angle-of-attack (AoA) can be used for high-throughput design of DLD device, due to their mitigation of vortex effects and preservation of flow symmetry under high Reynolds number (Re) conditions. While high-Re operation with symmetric airfoils has been established, the effect of AoA for airfoil on the DLD performance has not been characterized. In this study, we present a high-Re investigation with symmetric airfoil-shaped pillars having positive and negative 15 degree AoA. Both positive and negative AoA configurations yield significant flow anisotropy at higher flow rates. The stronger shift of the critical diameter (Dc) was observed with negative AoA, but not in positive AoA device. The most likely contributor may be the growing anisotropy that develops in the AoA device at higher flow rates. This study shows that high-Re DLD design with airfoil shaped pillars requires significant consideration for pillar orientation to control flow symmetry.
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Venkataramanujam, Venkatesh, and Pierre Larochelle. "A Displacement Metric for Finite Sets of Rigid Body Displacements." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49554.

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There are various useful metrics for finding the distance between two points in Euclidean space. Metrics for finding the distance between two rigid body locations in Euclidean space depend on both the coordinate frame and units used. A metric independent of these choices is desirable. This paper presents a metric for a finite set of rigid body displacements. The methodology uses the principal frame (PF) associated with the finite set of displacements and the polar decomposition to map the homogenous transform representation of elements of the special Euclidean group SE(N-1) onto the special orthogonal group SO(N). Once the elements are mapped to SO(N) a bi-invariant metric can then be used. The metric obtained is thus independent of the choice of fixed coordinate frame i.e. it is left invariant. This metric has potential applications in motion synthesis, motion generation and interpolation. Three examples are presented to illustrate the usefulness of this methodology.
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Gergel, John T., Vishali M. Vasudevan, and Matthew H. Hebdon. "Railroad Tie Lateral Resistance on Open-Deck Plate Girder Bridges." In 2020 Joint Rail Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/jrc2020-8053.

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Abstract On open-deck railroad bridges, the crossties (sleepers) are directly supported by the bridge superstructure and anchored with deck tie fasteners such as hook bolts. These fasteners provide lateral resistance for the bridge ties, and in railroad bridge design, their spacing is controlled by the required lateral resistance of the ties. Currently there are no provisions to assist in the calculation of lateral resistance provided by railroad ties on open-deck bridges, and as a result there are no specific requirements for the spacing of deck tie fasteners. This has led to different design practices specific to each railroad, and inconsistent fastener spacing in existing railroad bridges. A research plan was conducted to experimentally quantify the lateral resistance of timber crossties on open-deck plate girder bridges using different wood species and types of fasteners. Experimental tests were conducted on four different species of timber crossties (Beech, Sycamore, Southern Pine, and Oak) with three different types of fasteners (square body hook bolt, forged hook bolt, and Quick-Set Anchors). A structural test setup simulated one half of an open-deck bridge with a smooth-top steel plate girder, and hydraulic actuators to apply both vertical and horizontal load to a railroad tie specimen. The three main contributions to lateral resistance on open-deck bridges were identified as friction resistance between tie and girder due to vertical load from a truck axle, resistance from the fastener, and resistance from dapped ties bearing against the girder flange. Initial testing conducted at Virginia Tech isolated each component of lateral resistance to determine the friction coefficient between tie and girder as well as resistance from just the fastener itself. Results indicate that friction resistance varies based on the magnitude of vertical truck axle load, species of wood, and quantity of creosote preservative on the tie, while fastener resistance varies based on type of fastener and displacement of the tie. With the experimental results, a preliminary equation for calculating the overall resistance of open-deck timber crossties is developed, which allows for a recommendation of fastener spacing based on the type of fastener, wood species, and anticipated lateral loads on the structure.
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Boguszewski, Daniel V., Safa T. Herfat, Christopher T. Wagner, David L. Butler, and Jason T. Shearn. "Characterization of a Biomechanical Animal Model for Intact Knee Kinematics and ACL Function Using 6-DOF Robotic Technology." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53658.

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Anterior cruciate ligament injury (ACL) affects an estimated 250,000 people annually [1]. Unfortunately, even with ACL reconstruction, the likely prognosis is long-term osteoarthritis (OA) [2]. Many strides have been made in attempting to understand and improve this outcome. The use of robotic technology has provided an avenue for researchers to examine the ACL’s role in knee joint stability in all six anatomical degrees of freedom (DOF) [3]. The overall goal of our lab robotics research is to use this technology to understand ACL function during activities of daily living (ADLs) in hopes of developing a biomechanical animal model which can be used as a preclinical tool to design new repair methods and materials. We have examined three species (ovine, porcine, and human), measuring all forces and moments produced from displacement control motion paths developed for cyclic testing in a robotic system (KUKA; KR210). This information will provide a basis for comparing intact knee biomechanics and ACL function across species. With these robotic inputs, we have performed a series of studies to aid in the development of a biomechanical model of the human knee.
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Lee, Bong-Sang, Sang-Yoon Park, and Min-Chul Kim. "Experimental Observation of Front-Face-Displacement and Load-Line-Displacement in CT and Bend Specimens During Fracture Toughness Tests." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77977.

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The master curve method described in ASTM E1921 provides a tool for using small specimens such as sub-sized CT and PCVN specimens for standard fracture toughness testing. However, a direct measurement of the load-line displacement of small specimens is not practical for standard fracture toughness tests. Mostly, the front-face displacement or the crack mouth opening displacement can be measured and converted into the load-line displacement by using an analytical relationship proposed by several investigators. Since those relationships were deduced from numerical calculations of the loaded specimens, experimental deviations may occur because of specimen indentation, rotation and arm bending during an actual testing. It is clear that the determination of fracture toughness is influenced by the accuracy of the estimation of load-line displacement as well as the load measurement. In this study, the relationship between the load-line displacement and the front-face displacement or the crack mouth displacement was investigated experimentally by using a series of CT and Bend specimens modified to measure the two displacements simultaneously during a single test. The results showed that the front-face measurement of CT specimens may result in about 3% more conservative estimate of fracture toughness. In the case of bend specimens, the crack mouth opening displacement measurement may result in about 7% non-conservative estimate of fracture toughness than the load-line measurement.
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Han, C. W., S. Cho, and B. Han. "Transmission Microscopic Moire´ Interferometry for Nanoscale Deformation Measurements." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42221.

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Moire´ interferometry is a full-field optical method that has high displacement, strain and spatial resolution. The method has been used extensively for deformation analyses in the various fields of mechanics. Special considerations arise when deformation measurements of tiny specimens or tiny regions of larger specimens are sought. The relative displacements within a small field of view will be small (even if the strains are not small), so the number of morie´ fringes might not be enough for an accurate analysis.
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Reports on the topic "Species displacement"

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Hanson, P. J. Walker Branch Throughfall Displacement Experiment Data Report: Site Characterization, System Performance, Weather, Species Composition, and Growth. Office of Scientific and Technical Information (OSTI), September 2001. http://dx.doi.org/10.2172/814151.

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van Kooten, Tobias, Floor Soudijn, Ingrid Tulp, Chun Chen, Daniel Benden, and Mardik Leopold. The consequences of seabird habitat lossfrom offshore wind turbines : displacement and population level effects in 5 selected species. IJmuiden: Wageningen Marine Research, 2018. http://dx.doi.org/10.18174/465541.

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van Kooten, Tobias, Floor Soudijn, Ingrid Tulp, Chun Chen, Daniel Benden, and Mardik Leopold. The consequences of seabird habitat loss from offshore wind turbines, version 2 : Displacement and population level effects in 5 selected species. IJmuiden: Wageningen Marine Research, 2019. http://dx.doi.org/10.18174/496173.

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Underwood, John H. Stress Intensity Factor and Load-Line Displacement Expressions for the Round Bar Bend Specimen. Fort Belvoir, VA: Defense Technical Information Center, June 1994. http://dx.doi.org/10.21236/ada285669.

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Graham, Stephen M., and Michael D. McLaughlin. The Effect of Rotation on Load-Line Displacement Measurements Using Capacitance Gages in a Compact Tension Specimen. Fort Belvoir, VA: Defense Technical Information Center, October 1999. http://dx.doi.org/10.21236/ada375789.

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Antsiferov, Andrey, Oleksandr Glukhov, and Vadim Antsiferov. Experience in solving problem to control surface subsidence displacement in urban areas on the basis of the special-purpose geoinformation system “GeoMark”. Cogeo@oeaw-giscience, September 2011. http://dx.doi.org/10.5242/iamg.2011.0231.

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