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 762 for “"Population dynamics"”.
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Aspects of population dynamics
… systems can be modeled through relatively simple population dynamics models. There is a plethora of models describing deterministic models of ecological systems evolving in a constant environment. However, stochasticity can lead to extinction or fixation events, noise-stabilized patterns, and …
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STOCHASTIC MODELS IN POPULATION DYNAMICS.
… the construction of some stochastic models for population dynamics with a variety of birth and death rate functions. A general model is constructed considering a fundamental growth rate function of the population while allowing random births and deaths in the population. Four stochastic discrete …
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Population dynamics of African Trypanosomiasis
… Trypanotolerance Centre, TheGambia. Tsetse population parameters were investigated in arecapture study, and a method of analysis of these data whichallows for cyclic availability to the traps was developed. Themodel was modified to calculate the expected fraction ofpositive blood films …
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Population dynamics of bacterial persistence
… is one such strategy, where an isogenic population splits into subpopulations that respond differently under identical environments. Bacterial persistence is a prime example of such phenotypic heterogeneity, whereby a population survives under an antibiotic attack, by keeping a fraction …
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Modeling Stem Cell Population Dynamics
… mature cells is compensated by the presence of a population of stem cells which possesses the capability to self renew and to differentiate into various cell lineages. This process of continual cell replacement, is called homeostasis, is critical for the maintenance of adult tissues, and is …
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Probabilistic Models For Population Dynamics
… systems that serve as probabilistic models for population dynamics are studied in this work. The quadratic contact process is a stochastic spatial model for a population in which each individual has two parents and the dynamics are governed by random birth and death rates and an offspring …
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Population dynamics in meerkats, Suricata suricatta
… breeding species has shown that their population dynamics can differ from those of conventional breeders. Populations of obligate cooperators are structured into social groups, the link between individual behaviour and population dynamics is mediated by group-level demography, and …
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POPULATION DYNAMICS FOR MOBILE AGENT BASED SYSTEMS
Computing systems are increasingly distributed in nature and information is no longer confined to a single computer, but stored on various computers and can be under constant change. As a result traditional computing paradigms, such as the client-server communication model used for Web …
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Population dynamics: general results from local analysis
In this thesis a new approach to the formulation and analysis of general models is presented. In general models the interaction between state variables is not restricted to specific functional forms. Instead they are described by general functions. This approach is used to formulate and study …
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Habitat connectivity and spotted owl population dynamics
… potential future habitat gains, on an isolated population of northern spotted owls on the Olympic Peninsula of Washington state.Indices of landscape pattern are frequently used to estimate habitat connectivity, but whether they actually do so remains undocumented. If indices of habitat pattern …
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Population Dynamics In A Model Closed Ecosystem
… measurements of the survival and reproduction of populations are needed over many generations. Laboratory microbial ecosystems afford the short time and length scales required for such measurements. Their conventional implementations, batch cultures with period refreshment of growth medium or …
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Using population dynamics to decipher phage infection
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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Fishery and Population Dynamics of Mississippi’s Spotted Seatrout
… harvest, quantitative approaches to describe the population and fishery dynamics of the Mississippi stock are needed to continue the sustainability of the stock. Quantitative approaches to describing stock dynamics are useful because they can help describe population characteristics, assess the …
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Brood ecology and population dynamics of King Eiders
… and the extent of dispersal directly affect population dynamics. Knowledge of ecological factors that influence these processes provides insight into natural selection and understanding about changes in population size. King eiders (Somateria spectabilis) breed across the arctic region of …
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A PROTOTYPE POPULATION DYNAMICS MODEL FOR WILDLIFE MANAGEMENT.
MAYA is a prototype computerized population dynamics model designed to enhance decision making in wildlife management. Initially, the basis of scientific and philosophical design and implementation of enhanced computer modeling are discussed. This discussion forms the foundation for the development …
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Spatial and temporal variability in Acacia population dynamics
… on tree cover are often demographic at the tree population level. Sapling growth in particular has repeatedly been shown to be the limiting step, or 'bottleneck', in the establishment of trees in savannas. I set out to investigate how spatial and temporal variability in fire, herbivory, and …
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Spatial and temporal variability in Acacia population dynamics
… on tree cover are often demographic at the tree population level. Sapling growth in particular has repeatedly been shown to be the limiting step, or 'bottleneck', in the establishment of trees in savannas. I set out to investigate how spatial and temporal variability in fire, herbivory, and …
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Population dynamics of stochastic lattice Lotka-Volterra models
… exists an extinction threshold for the predator population that separates a stable active two-species coexistence phase from an inactive state wherein only prey survive. When investigating the non-equilibrium relaxation of the predator density in the vicinity of the phase transition point, we …
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