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Integral Projection Model for Demographic ... (1)

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This workflow constructs and analyses an IPM with only continuous stages and without ramet production based on the IPMpack (R). Information about the Input file: The data must be organized in a table (in .csv format), where each row represents one observation of an organism in the population at one census time t with the following column names: size: size of individuals in census time t sizeNext: size of individuals in census time t +1 surv: survival of individuals from census time t to t...

Created: 2013-08-13

Credits: Maria Paula Balcazar-Vargas Jon Giddy Gerard Oostermeijer

Matrix Population Model analysis v12 (2)

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The Matrix Population Models Workflow provides an environment to perform several analyses on a stage-matrix with no density dependence: - Eigen analysis; - Age specific survival; - Generation time (T); - Net reproductive rate (Ro); - Transient Dynamics; - Bootstrap of observed census transitions (Confidence intervals of lambda); - Survival curve; - Keyfitz delta; - Cohen's cumulative distance. This workflow requires an instance of Rserve on localhost This workflow has been created by the Bi...

Created: 2013-08-13 | Last updated: 2014-07-09

Credits: Maria Paula Balcazar-Vargas Jon Giddy Gerard Oostermeijer

Attributions: Creation of a stage matrix model from demographic monitoring of individuals in an animal or plant population Eigen analysis Age specific analysis Transient Dynamics. Generation time (T) Net reproductive rate (Ro) Demographic data Gentiana pneumonanthe 1987-1988 from Terschelling File.

Matrix Population Model construction and a... (3)

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The Matrix Population Models Workflow provides an environment to create stage-matrices with no density dependence and to perform several analyses on them: - Eigen analysis; - Age specific survival; - Generation time (T); - Net reproductive rate (Ro); - Transient Dynamics; - Bootstrap of observed census transitions (Confidence intervals of lambda); - Survival curve; - Keyfitz delta; - Cohen's cumulative distance. If multiple year transitions are selected, the results will be ordered by year. ...

Created: 2013-08-13 | Last updated: 2014-07-04

Credits: Maria Paula Balcazar-Vargas Jon Giddy Gerard Oostermeijer

Attributions: Creation of a stage matrix model from demographic monitoring of individuals in an animal or plant population Matrix Population Model construction and analysis Eigen analysis Age specific analysis Transient Dynamics. Generation time (T) Net reproductive rate (Ro) Bootstrap of observed census transitions. Demographic data Gentiana pneumonanthe 1987-1988 from Terschelling File.

Eigen analysis (3)

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The Eigen analysis results are a set of demographic statistics: 1) Lambda or dominant eigenvalue: The population will be stable, grow or decrease at a rate given by lambda: eg: ? = 1 (population is stable), ? > 1 (population is growing) and finally ? < 1 (populatiopn is decreasing) . 2) The stable stage distribution: It is the proportion of the number of individuals per stage and it is given by (w). Elasticity and Sensitivity: Sensitivity and elasticity analyses are prospective analyses....

Created: 2012-11-02 | Last updated: 2014-07-25

Credits: Maria Paula Balcazar-Vargas Jon Giddy Gerard Oostermeijer

Attributions: Matrix Population Model construction and analysis v20 Matrix Population Model analysis v12 Stage Matrix of Gentiana pneumonanthe 1987-88