Document Detail


A Bayesian modeling approach for determining productivity regimes and their characteristics.
MedLine Citation:
PMID:  19323208     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Oscillations in the environment result in substantial alterations to population dynamics as evidenced by time series of abundance and recruitment. Depending on the reference timescale, these oscillations are referred to as regime shifts. Regime shifts may occur on very short time scales and are often undetected for several years. Consequently, tools that allow the estimation of regime-specific population dynamic parameters may be of great value. Using a hidden Markov model to describe the unobserved regime state, we develop methods to infer regime-specific parameters for a commonly used model of density-dependent recruitment in addition to identifying the unobserved regime state. We apply the method to recruitment data for Japanese sardine (Sardinops melanostictus).
Authors:
S B Munch; A Kottas
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Ecological applications : a publication of the Ecological Society of America     Volume:  19     ISSN:  1051-0761     ISO Abbreviation:  Ecol Appl     Publication Date:  2009 Mar 
Date Detail:
Created Date:  2009-03-27     Completed Date:  2009-06-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889808     Medline TA:  Ecol Appl     Country:  United States    
Other Details:
Languages:  eng     Pagination:  527-37     Citation Subset:  IM    
Affiliation:
Marine Science Research Center, Stony Brook University, Stony Brook, New York 11794, USA. smunch@notes.cc.sunysb.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Bayes Theorem
Fishes / physiology*
Markov Chains
Models, Theoretical*
Population Density
Population Dynamics
Reproduction

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