Predictions of Taylor's power law, density dependence and pink noise from a neutrally modeled time series

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10072321" target="_blank" >RIV/00216208:11310/10:10072321 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11620/10:10072321 RIV/67985939:_____/10:00370278

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Predictions of Taylor's power law, density dependence and pink noise from a neutrally modeled time series

Original language description

We investigated the ability of a neutral model to predict phenomena observed in single-population time series. We consider tests for density dependence, spectral density, and a relationship between the mean and variance of a fluctuating population (Taylor's power law). Our spectral analysis showed 'pink noise': a departure from a standard random walk dynamics in favor of the higher frequency fluctuations which is consistent with empirical data. We detected density dependence in local community time series but not in metacommunity time series. The slope of the Taylor's power law in the model was similar to the slopes observed in natural populations, but the fit was worse. We conclude that some of the phenomena observed in natural time series can emergefrom neutral processes, as a result of random zero-sum death, birth and migration. This suggests the neutral model would be a parsimonious null model for future studies of time series data.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Theoretical Biology

ISSN

0022-5193

e-ISSN

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Volume of the periodical

265

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

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UT code for WoS article

000278928600008

EID of the result in the Scopus database

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