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 8 of 8 for “"temporary emigration"”.
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Using mark-recapture methods to estimate population size and survival of pyjama sharks (Poroderma africanum) in Mossel Bay, South Africa
… apparent survival, recapture probability and temporary emigration for the pyjama shark, Poroderma africanum in Mossel Bay, South Africa over a five-year period. This study applied Pollock's robust design (with the conventional tag data) and Cormack-Jolly-Seber (CJS) models (with the acoustic …
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Sampling methodology tradeoffs: evaluating monitoring strategies for the endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona
… in such cases, it may be necessary to evaluate temporary emigration from the study site to avoid generating biased estimates of survival, detection and spawning probabilities. Evaluating temporary emigration is especially important when non-annual spawning is anticipated, as skipped spawners may …
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Population Dynamics of Ouachita Dusky Salamanders (Desmognathus brimleyorum) in a Managed Forest Landscape
… the capture probability, recapture probability, temporary emigration, abundance, and apparent survival of D. brimleyorum with robust design CMR models. Overall, our models provided evidence for seasonal and temporal variation in salamander survival and abundance, but little evidence for strong …
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Spatial population dynamics of western painted turtles in a wetland ecosystem in northwestern Montana
… and the negative forces of deaths and emigration. Understanding dynamics at the local and metapopulation level is key in wildlife conservation. Although data on turtle survival and movement rates are available, few studies use rigorous statistical analyses and none include examination …
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Spatial population dynamics of western painted turtles in a wetland ecosystem in northwestern Montana
… and the negative forces of deaths and emigration. Understanding dynamics at the local and metapopulation level is key in wildlife conservation. Although data on turtle survival and movement rates are available, few studies use rigorous statistical analyses and none include examination …
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Wintering Ecology of Buff-Breasted Sandpipers (Tryngites subruficollis) in Southern Brazil
… had lower apparent annual survival and a higher temporary emigration rate than females. Differences in apparent annual survival between sexes may result from the short-term nature of this study and/or higher emigration rate of male Buffbreasted Sandpipers. Therefore, future long-term studies …
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The Economic Impacts of Migrant Maids in Malaysia
… Indonesia). To examine the effect of this temporary emigration to Malaysia on income levels of the emigrant and the migrant-sending households a survey of Indonesian maids and factory workers in Malaysia was conducted by the author of this thesis. Data from this survey were then combined …
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Breeding success, prey use, and mark-resight estimation of burrowing owls nesting on black-tailed prairie dog towns: plague affects a non-susceptible raptor
… to estimate abundance, apparent survival, and temporary emigration. The Poisson-log normal mark-resight model (McClintock and White 2009) has recently been implemented in Program MARK (White and Burnham 1999). This model improves upon previous mark-resight models because individual …