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Items tagged with "lambda or dominant eigenvalue" (10)

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Project Biovel

Blob Parametric Bootstrap or Resample a projection matrix...

Created: 2014-07-25 09:41:10

Credits: User Maria Paula Balcazar-Vargas User Jon Giddy User Gerard Oostermeijer

Attributions: Workflow Parametric Bootstrap or Resample a projection matrix Workflow

License: Creative Commons Attribution-Share Alike 3.0 Unported License

This documentation (tutorial to run the workflow) explains how to run a workflow that belongs to the pack with same name.The Parametric Bootstrap or Resample a projection matrix Workflow provides an environment to resample a projection matrix using a multinomial distribution for transitions and a log normal distribution for fertilities (Stubben, Milligan, and Nantel. 2011). The resample is based on number of plants surveyed. The projection matrix A is first split into separate transition and ...

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Project Biovel

Blob Bootstrap of observed census transitions documentation

Created: 2014-07-25 10:37:03

Credits: User Maria Paula Balcazar-Vargas User Jon Giddy User Gerard Oostermeijer

License: Creative Commons Attribution-Share Alike 3.0 Unported License

This documentation (tutorial to run the workflow) explains how to run a workflow that belongs to the pack with same name.The Bootstrap of observed census transitions (confidence intervals of λ) workflow for local execution calculates bootstrap distributions of population growth rates (λ), stage vectors, and projection matrix elements by randomly sampling with replacement from a stage-fate data frame of observed transitions. The goal of a demographic analysis is very often to est...

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Project Biovel

Blob Matrix Population Models construction and analyses d...

Created: 2014-07-25 10:48:13 | Last updated: 2014-07-25 10:50:17

Credits: User Maria Paula Balcazar-Vargas User Jon Giddy User Gerard Oostermeijer

Attributions: Workflow Matrix Population Model construction and analysis v20

License: Creative Commons Attribution-Share Alike 3.0 Unported License

This documentation (tutorial to run the workflow) explains how to run a workflow that belongs to the pack with same name.The Matrix Population Models construction and analyses Workflow provides an environment for create a stage-matrix with no density dependence and perform several analyses on it.Analyses:Eigen analysis.Age specific survival.Generation time (T).Net reproductive rate (Ro).Transient Dynamics.Bootstrap of observed census transitions (Confidence intervals of λ).Survival cur...

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Project Biovel

Blob Matrix Population Models analysis documentation

Created: 2014-07-25 10:55:42

Credits: User Maria Paula Balcazar-Vargas User Jon Giddy User Gerard Oostermeijer

Attributions: Workflow Matrix Population Model analysis v12

License: Creative Commons Attribution-Share Alike 3.0 Unported License

This documentation (tutorial to run the workflow) explains how to run a workflow that belongs to the pack with same name.The Matrix Population Models analysis Workflow provides an environment to perform several analyses on a stage-matrix with no density dependence.Analyses:Eigen analysis.Age specific survival.Generation time (T).Net reproductive rate (Ro).Transient Dynamics.Resample a projection matrix (Confidence intervals of λ).Survival curveKeyfitz’s ΔCohen’s cumul...

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Project Biovel

Blob Eigen analysis documentation

Created: 2014-07-25 11:18:44

Credits: User Maria Paula Balcazar-Vargas User Jon Giddy User Gerard Oostermeijer

Attributions: Workflow Eigen analysis

License: Creative Commons Attribution-Share Alike 3.0 Unported License

This documentation (tutorial to run the workflow) explains how to run a workflow that belongs to the pack with same name.The Eigen analysis workflow provides an environment for the analysis of a stage-matrix and perform several analyses on it.The Eigen analysis results are a set of demographic statistics:Lambda or dominant eigenvalue (λ).The stable stage distribution (w).The sensitivity matrixThe Elasticity matrix.Reproductive value (v).The damping ratio (ρ)

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Project Biovel

Blob Transient dynamics documentation

Created: 2014-07-25 12:16:46

Credits: User Maria Paula Balcazar-Vargas User Gerard Oostermeijer

Attributions: Workflow Transient Dynamics.

License: Creative Commons Attribution-Share Alike 3.0 Unported License

This documentation (tutorial to run the workflow) explains how to run a workflow that belongs to the pack with same name.The Transient dynamics or Calculate population growth rates by projection Workflow provides an environment to calculates the population growth rate and stable stage distribution by repeated projections of the equation n(t+1)=An(t) and to produce plots of the short-term dynamics and convergence to stable stage distribution using stage vector projections.Transient dynamic ana...

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Project Biovel

Blob Resident killer whale-chinook salmon interactions an...

Created: 2014-09-26 12:09:28 | Last updated: 2014-09-26 12:11:12

Credits: User Maria Paula Balcazar-Vargas User Antonio Velez-Espino User Andres Araujo User Jon Giddy User Francisco Quevedo

Attributions: Workflow Exploration of fishing scenarios Workflow Resident killer whale-chinook salmon interactions

License: Creative Commons Attribution-Share Alike 3.0 Unported License

This documentation contains the tutorial to run two related workflows. 1.    Resident killer whale-chinook salmon interactions workflow The Resident killer whale-chinook salmon interactions workflow provides an environment to create calculate a two-sex stage-structured matrix with no density dependence and with vital rates as random variables or as functions of Chinook abundance from specific stock aggregates and to (i) quantify the differences in demographic rates be...

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Packs (2)
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Project Biovel

Pack Transient dynamics pack


Created: 2014-07-04 10:59:17 | Last updated: 2014-07-25 12:17:07

This pack contains a workflow, a file and documentation (tutorial to run the workflow).The Transient dynamics or Calculate population growth rates by projection Workflow provides an environment to calculates the population growth rate and stable stage distribution by repeated projections of the equation n(t+1)=An(t) and to produce plots of the short-term dynamics and convergence to stable stage distribution using stage vector projections.Transient dynamic analysisPopulation projectionLambda o...

3 items in this pack

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Project Biovel

Pack Parametric Bootstrap or Resample a projection matrix...


Created: 2014-07-09 14:03:43 | Last updated: 2014-07-25 09:41:32

This pack contains a workflow, a file and documentation (tutorial to run the workflow). The Parametric Bootstrap or Resample a projection matrix Workflow provides an environment to resample a projection matrix using a multinomial distribution for transitions and a log normal distribution for fertilities (Stubben, Milligan, and Nantel. 2011). The resample is based on number of plants surveyed. The projection matrix A is first split into separate transition and fertility matrices. Dead fates ar...

3 items in this pack

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Workflows (1)

Workflow Killer whale demography (1)

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This workflow analyzes the demography and population growth of resident killer whale populations. Originally created for comparative studies of Northeastern Pacific populations at risk, Southern Resident Killer Whales (SRKW) and the Northern Resident Killer Whales (NRKW), the workflow can be used for other killer whale populations or cetaceans counting with census data and life cycles that can be represented using the matrix models described in this document. This workflow perform the follow...

Created: 2014-09-24

Credits: User Maria Paula Balcazar-Vargas User Antonio Velez-Espino User Andres Araujo User Jon Giddy User Francisco Quevedo

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