Examinando por Autor "Oya, Antonia"
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Ítem Impact of topographic factors on animal field pathings: Analysis and prediction of deer movement patterns(ELSEVIER, 2024-01-19) Valderrama-Zafra, José Manuel; Rubio-Paramio, Miguel Ángel; García-Molina, Diego Francisco; Mercado-Colmenero, Jorge Manuel; Oya, Antonia; Carrasco, Rafael; Azorit, ConcepciónUnderstanding and tracking the complexities of animal movement patterns is of paramount importance in wildlife management, conservation efforts, and the sustainable use of natural resources. An infinite number of factors influence the movement path of animals within their respective habitats, including: the structure of the habitat, the availability of resources, the presence of natural predators, social memory, the topographic attributes of the environment, etc. Numerous studies have attempted to delineate the spatial boundaries of animal habitats by elucidating the complexities of their movement dynamics. These investigations have highlighted the profound impact of factors such as environmental topography and the presence of natural impediments and other anthropogenic structures on animal mobility, but very few have analyzed topographic factors at a fine three-dimensional spatial scale. This research focuses on a novel methodology for identifying animal trajectories at a fine scale and evaluating the influence of topographic factors on these trajectories, specifically of deer herds in southern Spain. To understand movement patterns, transects recorded in the field due to continued use by deer are analyzed. Topographical information was obtained in two steps: first with a graphical analysis of orthophotos for the incorporation of the sufficient data set. Secondly, the veracity of this data was verified using Global Positioning System (GPS) tracking technology. The integration of data from multiple sources with Geographic Information Systems (GIS) allowed the analysis to be automated. Next a statistical linear regression model, based on both the ascent and descent lengths and the total length of the path traveled, was designed to infer the trajectories between two designated points within the study area. Using topographical variables obtained in the study environment, such as the slope, the elevation difference (cumulative vertical distance), and the 3D length of the transect paths, the influence of these variables on the movement decisions of animals within their habitat is established in order to facilitate their subsequent prediction. Analytical tests of the trajectories have shown that the movement behavior of cervids is predictable. The results demonstrate the usefulness of the methodology presented which, by providing and collect valuable topographic information on movement and transit areas, can guide sustainable management practices for deer populations and their habitats.Ítem Tecnologías gráficas, de análisis del terreno y posicionamiento espacial aplicadas al estudio y la gestión de la fauna silvestre en ecosistemas mediterráneos(Jaén : Universidad de Jaén, 2024-06-07) Valderrama-Zafra, José Manuel; Azorit, Concepción; Rubio-Paramio, Miguel Ángel; Oya, Antonia; Universidad de Jaén. Departamento de Biología animal, biología vegetal y ecologíaLa Tesis Doctoral se enfoca en estudiar la influencia de los factores topográficos en el comportamiento animal en ecosistemas mediterráneos del sur de España, validando métodos topográficos para monitorear la fauna. Destaca la importancia de considerar la tridimensionalidad del terreno en estudios ecológicos y biológicos, demostrando su impacto en la vida animal. Se analizan trayectorias de especies como el conejo, lince, lobo y ciervo, integrando factores topográficos en modelos de consumo energético y estimación de corredores ecológicos. Se desarrolla una metodología para la identificación de trayectorias animales y se prueba la tecnología GNSS para la monitorización de la vida silvestre. Actualmente, se investiga cómo el consumo energético influye en las rutas de desplazamiento animal, combinando técnicas desarrolladas en la tesis con formulaciones existentes sobre el consumo energético animal. The Doctoral Thesis focuses on studying the influence of topographic factors on animal behavior in Mediterranean ecosystems of southern Spain, validating topographic methods for monitoring wildlife. It highlights the importance of considering the three dimensionality of the terrain in ecological and biological studies, demonstrating its impact on animal life. Trajectories of species such as rabbit, lynx, wolf and deer are analyzed, integrating topographic factors in models of energy consumption and estimation of ecological corridors. A methodology for the identification of animal trajectories is developed and GNSS technology for wildlife monitoring is tested. Currently, we are investigating how energy consumption influences animal movement routes, combining techniques developed in the thesis with existing formulations on animal energy consumption.