Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"eBird"”.
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How Habitat and Observer Access Bias affects eBird Data Coverage in Nevada
… activity. Many bird watchers ("birders") use eBird, a citizen science project, to track and share their sightings, as well as to plan excursions. eBird is a global project, run by the Cornell Lab of Ornithology, and is more than just an online platform for tracking bird observations: The data …
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The Effects of Global Change on Avian Biodiversity
… quantified differences in reporting rates across eBird and the North American Breeding Bird Survey (BBS) and assessed the sources of these biases to understand how each dataset can best be used to monitor bird populations. While more species are reported to eBird, there are generally lower counts …
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Tufted Titmice, Black-crested Titmice, and their Hybrids Occupy Different Habitats within their Hybrid Zone
… BCTI and with human disturbed habitats. I used eBird data and high resolution GIS land cover data in a grid-based sampling design to analyze the habitat associations of the three titmice types throughout the hybrid zone, plus locations immediately outside the h zone only occupied by the parental …
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Diversidad avifaunistica en el área natural protegida Normandía y los agropaisajes colindantes, Depto. de Usulután, El Salvador
… y registrada por Komar en diciembre de 2012 (eBird 2013a), totalizando 564 especies de aves para El Salvador (Listado de las Aves de El Salvador. En la presente investigación se determinó la diversidad de aves en los dos sectores del ANP Normandía y su agropaisaje colindante; de igual manera …
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Crowdsourcing Scientific Work: A Comparative Study of Technologies, Processes, and Outcomes in Citizen Science
… Mountain Watch, the Great Sunflower Project, and eBird, three observation-based ecological citizen science projects in different scientific domains. Five themes are highlighted in the findings: the influence of project design approaches that favor science versus lifestyle; project design and …
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When the Map Fails the Territory: Hidden State Models, Complex Traits and the Evolution of Bird Migration
… movement from large-scale community science (eBird) data, using entropy-based measures and phylogenetically aligned component analysis (PACA) to reveal a multi-dimensional structure of evolutionarily relevant combinations of traits, representing underlying movement behavior in North American …
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Landscape Scale Habitat Associations of Sprague's Pipit (Anthus Spragueii) Overwintering in the Southern United States
… layer and pipit point locations retrieved from eBird. I examined landscape-scale (1, 2 and 5 km) habitat associations of Sprague’s Pipit over wintering in areas of Arizona, New Mexico, Texas, and Louisiana. I then compared these habitat associations to those of random locations and to locations …
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Cities for birds, birds for cities: The urban ecology of birds across scales from global sampling to individual responses
… of urban bird communities. Comparisons with eBird show that opportunistic community-science data are skewed towards greenspaces in wealthy cities, which can inflate species richness estimates, whereas stratified, randomized surveys used in the Global Urban Bird Survey provide more …
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Using eDNA and Habitat Suitability Modeling to Better Understand the Range and Habitat Requirements of the Eastern Black Rail
… focusing on the Atlantic coastal plain using eBird data contributed by citizen scientists and environmental variable data from the Esri databank using a maximum entropy model framework. The map generated by the MaxEnt model indicated habitat suitability in areas known for Black Rail …
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Does Urbanization Facilitate the Establishment of Introduced Monk Parakeet (Myiopsitta monachus) Populations?
… Dataset, and observations and location data from eBird to find nest locations that were then confirmed by Google Street View. I created buffered areas around each of 280 nest locations and random points (presumed absence locations) at three different radii: 100 m, 250 m, and 500 m. I found that …
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IMPROVING CONSERVATION IMPACT THROUGH PRIORITY-SETTING AND EVALUATION
… data from the participatory science project, eBird. For each species, we calculated the percentage of its U.S. population that occurred within ES priority areas and summarized the information by biome communities (e.g., forest, grassland, aridland). Given high interest in carbon for mitigating …