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 “"resighting"”.
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Population size estimation from mark-resighting surveys
… on the results of a certain type of marking-resighting sampling design. The design is similar to the commonly used multiple capture-recapture design, yet in some cases economically more feasible and easy to use. Sampling is done by first tagging a number of randomly selected animals with …
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Ecology of the Endangered Sandy Cay Rock Iguana, Cyclura rileyi cristata, in the Bahamas
… surveys and a Lincoln-Petersen estimate based on resightings of marked iguanas suggest that the total population is comprised of 134-204 animals. In contrast to other populations of <em>C. rileyi </em>sampled by similar means, the sex ratio was highly skewed toward male iguanas (95% of noose …
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Survival and reproduction in a biennially-breeding seabird : the Wandering Albatross
… late-failed breeding attempts, the chances of resighting an adult Wandering Albatrosses are reduced, thus affecting estimated recapture rates. I applied a multi-state mark-recapture method to the colony breeding data from Marion Island (1987-2005). This method allows individual albatrosses to …
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Nesting Ecology Of Red-Headed Woodpeckers (Melanerpes Erythrocephalus) In Central Minnesota
… banded, and using Program MARK, I analyzed mark-resighting data using a Cormack-Jolly-Seber (CJS) model to estimate annual apparent survival and detection probability. In the most parsimonious model, apparent survival varied by year and detection probability differed by sex. Annual apparent …
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Placing nothingness: An investigation of cross-cultural philosophical encounters centred on the architecture of courtyards
… (Jullien, 2022). To bring this comparative resighting back into architectural consideration, an investigation of three case studies of recent urban architectural projects is undertaken to better grasp how a reworking of courtyard sensibilities may begin to find place in city-scaled contexts. …
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The pre-reproductive period in a tropical bird: parental care, dispersal, survival, and avian life histories
… For my dissertation I used radio-telemetry, mark-resighting, and field observations to study the pre-reproductive period in a Neotropical bird, the western slaty-antshrike (Thamnophilus atrinucha), in Panama. First, I found that parental care after offspring left the nest (the post-fledging …
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Piping Plover (Charadrius melodus) demography, behavior, and movement on the Outer Banks of North Carolina
… Jolly-Seber and binomial count models on resighting and count data to estimate stopover superpopulation and stopover duration of migrating birds based on their breeding region of origin. Annual survival of adults from North Carolina (x ̅ = 0.69, SE = 0.07) was not different from another …
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Prevalence and Genetic Characterization of Avian Influenza Virus in Ring-billed and Franklin's Gulls in Minnesota
… We investigated gull movements by collecting resighting events from banded RBGU and from satellite location tracking of a small subset of RBGU from one breeding colony on Interstate Island in Duluth, Minnesota. The predominant resightings and recorded movements of Minnesota RBGU were along the …
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Demography of a declining Dunlin (<i>Calidris alpina arcticola</i>): influences on adult survival and mate fidelity of an Arctic-breeding migratory shorebird
… U.S.A. Breeding site data were supplemented with resighting observations and habitat data from non-breeding sites in eastern Asia (Japan, China, Taiwan). I examined breeding site environmental (temperature, snow melt date, precipitation) and ecological (predator abundance and predator-prey cycles, …
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Fitness and Implications of Reproductive Decisions for Black Brant Nesting on the Yukon-Kuskokwim Delta, Alaska
… of female brant. Nineteen years of recapture/resighting and nesting data were used from 2338 marked pairs of brant from the Tutakoke River colony in southwest Alaska. The Barker model in program MARK was used to examine effects of mate loss on annual survival, reporting rate, and permanent …
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Population dynamics and population genetics of the Critically Endangered Raso lark: implications for conservation
The Raso lark is a Critically Endangered bird endemic to the islet of Raso, Cape Verde. This thesis investigates two phenomena that particularly put the species at risk: its extreme fluctuations in population size, and its potentially very low genetic diversity arising from small population size …