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 20 of 51 for “"Population parameters"”.
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Estimating population parameters of early villages in the Pre-Pottery Neolithic central and southern Levant
An understanding of population dynamics is essential for reconstructing the trajectories of central and southern Levantine Pre-Pottery Neolithic (PPN) villages during the Neolithic Demographic Transition (NDT). Whilst pre-existing population estimates of PPN villages have made a valuable …
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Inter-Population Maize Improvement in the F(2) and in the Bc(1) Following Elite Line by Broadbase Population Crosses (Linkage, Intra-Population Parameters)
Estimates of genetic parameters from 3 x 3 Design II analyses, pooled over 32 sets and evaluated at two locations, of crosses among random F(,2)S(,1) lines of B73 x B Comp. with random F(,2)S(,1) lines of Mo17H x A Comp. and among random BC(,1)S(,1) lines (backcrossed to the inbreds) of the two …
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Determinants of gemmae output in the liverwort Lophozia ventricosa
The spacial variation and population parameters affecting gemmae output of a boreal and arctic liverwort species, Lophozia ventricosa, were studied in Trnndelag, a boreal region of central Norway and in the arctic tundra on Svalbard. The population parameters investigated included colony size, …
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Breeding bird populations in relation to the vegetation structure of abandoned contour mines in Southwest Virginia
… investigate relationships between breeding bird population parameters and structural aspects of the disturbed area vegetation. The territorial mapping method was employed to census bird populations. The number of breeding species, number of breeding pairs, bird species diversity, and number of …
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Asymptotic simultaneous confidence intervals for the probabilities of a multinomial distribution
… goodness of fit statistic as a function of the population parameters and to invert this function to obtain a set of simultaneous confidence intervals for the parameters The confidence coefficient for the set of simultaneous confidence intervals obtained by this procedure is conservative, i.e., …
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Influence of synthetic mustelid semiochemicals on population dynamics of the deer mouse
In this study I investigated population changes in the deermouse (Peromyscus maniculatus) in the southwestern part of the Morice Forest District of the Prince Rupert Forest Region of British Columbia. I tested the hypothesis that synthetic weasel odours would adversely affect deer mouse population …
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Leveraging Partial Identity Information in Spatial Capture-Recapture Studies with Applications to Remote Camera and Genetic Capture-Recapture Surveys
… wildlife species have revolutionized the way population parameters, such as population density and survival and recruitment rates, are estimated while accounting for imperfect detection using capture-recapture models. Reliable estimates of these parameters are vital information required for …
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Comparison of two drugs by multiple stage sampling using Bayesian decision theory
… experimental procedure between two binomial populations (e.g., the numbers of successes for two drugs) on the basis of the results of previous stages. After all of the stages of the experiment have been performed, one must make the terminal decision of which of the two populations has the …
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Monte Carlo simulation with parametric and nonparametric analysis of covariance for nonequivalent control groups
… and the covariate-corrected rank transform. Population parameters were established; sample parameter intervals determined by Monte Carlo simulation were examined; and a best ANCOVA model was systematically and theoretically determined in light of population assumption violations, reliability …
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Spatial population dynamics of brook trout (Salvelinus fontinalis) in a central Appalachian watershed
I examined the spatial population dynamics of brook trout (Salvelinus fontinalis) in a central Appalachian watershed. The objectives of my research were: (1) identify factors that influence reproduction; (2) determine if factors that influence reproduction influence the distribution and abundance …
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Population Cross-Validity Estimation and Adjustment for Direct Range Restriction: A Monte Carlo Investigation of Procedural Sequences to Achieve Optimal Cross-Validity
… determining specific values of interest within a population of 1,000,000 cases. Specifically, the proper procedures for addressing the opposing effects of direct range restriction and validity overestimation were assessed through a comparison of multiple correlation coefficients derived using …
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EFFECTS OF THERMAL STRESS ON SURVIVORSHIP OF BROOK TROUT (SALVELINUS FONTINALIS) IN ADIRONDACK LAKES
… influence of variable temperature on brook trout populations poses an important challenge to fisheries biologists. I conducted a robust design mark-recapture study in three lakes in New York's Adirondack Park to estimate population parameters related to survival, abundance, detection probability …
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Estimation of the population mean using two extremes in order statistics
… order statistics are useful for estimate the population parameters of both large and small samples; The applications of the method using order statistics in a given sample to estimate the parametric values appear quite often in the literature. For a certain data set, such as stock market data, …
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Guidelines for the interpretation of NCDIF as an effect size measure
… not all DIF statistics quantify the same population parameters and, therefore, cannot be interpreted interchangeably. We focus on deriving principled guidelines for the interpretation of the non-compensatory differential item functioning (NCDIF) parameter as a DIF effect size measure. This …
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The importance of sandeel (Ammodytes marinus) for minke whales (Balaenoptera acutorostrata) and white-beaked dolphins (Lagenorhynchus albirostris) in Faxaflói Bay, Iceland
… white-beaked dolphins, and whether changes in population parameters of the sandeel stock influence the abundance of these cetacean species in Faxaflói Bay. Whale abundance was estimated from observational data collected in regular whale watching tours in July 2008-2013. Sandeel data from the …
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Population Parameter Estimation and Stable Isotope Analysis of Gulf Sturgeon (Acipenser oxyrinchus desotoi) in the Pascagoula River
… divide at Mobile Bay, AL, creating a western population unit (WPU) and an eastern population unit (EPU). Sturgeon belonging to the WPU exhibit lower abundances, higher mortality rates, and are overall less studied than their EPU counterparts. Notable data gaps for the WPU includes the absence …
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Psychological Birth Order and Career Adaptability in an At-Risk College Population
… The results of the CAAS were compared to the population parameters using multiple one-sample t-tests. The researcher used the Kruskal-Wallis nonparametric test to analyze the data collected from the PBOI and the CAAS. Psychological birth order was the grouping variable, and the four dimensions …
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Sampling Attributes of Puerto Rico Stream Fishes: Bias, Selectivity, and Environmental Influences
… a standardized sampling method, and accurate population estimates. My primary objectives for this study were to (1) quantitatively describe gear efficiency and selectivity relationships to estimate stream fish populations in Puerto Rico; (2) evaluate population models among species using …
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