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http://hdl.handle.net/2445/189227
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DC Field | Value | Language |
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dc.contributor.advisor | Miguel López, María del Carmen | - |
dc.contributor.author | Colet Díaz, Clara | - |
dc.date.accessioned | 2022-09-21T13:04:27Z | - |
dc.date.available | 2022-09-21T13:04:27Z | - |
dc.date.issued | 2022-06 | - |
dc.identifier.uri | http://hdl.handle.net/2445/189227 | - |
dc.description | Treballs Finals de Màster en Física dels Sistemes Complexos i Biofísica, Facultat de Física, Universitat de Barcelona. Curs: 2021-2022. Tutora: M. del Carmen Miguel López | ca |
dc.description.abstract | Understanding population dynamics, and in particular, population cycles is one of the central issues in ecology. In this work we study noise induced phenomena in generalized Lotka-Volterra ecological models and we show how a stochastic model for population dynamics can give rise to periodic cyclic behaviour in the presence of intrinsic noise. We will show how the intrinsic noise in a prey-predator dynamics including intra-specific, or logistic auto-regulatory, interactions gives rise to a resonant frequency in the power spectrum characterizing the system evolution, but at the same time, we show that there are other types of interactions among species where a resonant frequency does not appear. Furthermore, we analyze the effects of random transport between different ecological patches or metapopulations and see that cyclic behaviours can appear, if a prey-predator dynamics is imposed, or disappear | ca |
dc.format.extent | 16 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | ca |
dc.rights | cc-by-nc-nd (c) Colet, 2022 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.source | Màster Oficial - Física dels Sistemes Complexos i Biofísica | - |
dc.subject.classification | Model de Lotka-Volterra | - |
dc.subject.classification | Dinàmica de poblacions | - |
dc.subject.classification | Soroll | - |
dc.subject.classification | Treballs de fi de màster | - |
dc.subject.other | Lotka-Volterra model | - |
dc.subject.other | Population dynamics | - |
dc.subject.other | Noise | - |
dc.subject.other | Master's theses | - |
dc.title | Noise induced phenomena in ecological models | eng |
dc.type | info:eu-repo/semantics/masterThesis | ca |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca |
Appears in Collections: | Màster Oficial - Física dels Sistemes Complexos i Biofísica |
Files in This Item:
File | Description | Size | Format | |
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TFM_Colet_Diaz_Clara.pdf | 2.04 MB | Adobe PDF | View/Open |
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