What are Extensions?

Extensions are modules that plug into the LANDIS-II model, and either represent ecological processes or generate output data. Each ecological process is programmed as an independent extension that interacts with the landscape through an explicit interface with the core LANDIS-II program.

Below is a list of extensions that are currently available to registered users. It is important to check this page frequently. Updates and bug fixes are not uncommon. In exchange for not bombarding users with email, users are responsible for ensuring that they have the latest extension versions. For more information about the status of an extension, contact the developer listed on the individual extension web site.

Installation Requirement (Read This First!)

You MUST BECOME a member of the LANDIS-II Users Group and be logged in to access these files. In order to join the group, you will need to create a Google account. This does NOT require that you have a gmail account. You can create a Google account using your current email address. After you have created your Google account and joined the Users Group, you will automatically be granted access to all extension installers. You do not need to request permission after following these steps.

Succession Extensions: You can install multiple succession extensions although only one operates during a simulation.

 Name Last Updated
 Age-only Succession October 2019
 Biomass Succession January 2020
 Forest Carbon Succession May 2020
 Net Ecosystem Carbon & Nitrogen SuccessionFebruary 2021
 PnET Succession December 2020

Universal Disturbance and Output Extensions: Compatible with ALL succession extensions
Name Last Updated
 Age Reclassification Output September 2018
 Base Biological Disturbance Agents March 2019
 Base Epidemiological Disturbance Agent November 2018
 Base Fire September 2018
 Base Harvest October 2019
 Base Wind September 2018
 BFOLDS Fire May 2020
 Cohort Statistics Output September 2018
 Dynamic Fuels & Fire System September 2018
 Forest Road Simulator October 2020
 Linear Wind September 2018
 Local Habitat Suitability Output September 2018
 Maximum Species Age Output September 2018

Biomass Extensions: Compatible with Biomass, PnET, and NECN Succession
 Name Last Updated
 Biomass-by-Age Output September 2018
 Biomass Browse September 2018
 Biomass Fuels September 2019
 Biomass Harvest October 2019
 Biomass Output September 2018
 Biomass Reclassification Output September 2018
 Land Use Change+ February 2021
 Landscape Habitat Output January 2020
 Biomass Community Output December 2019
 SCRAPPLE February 2020

Other Extensions: Compatible with various
 Name Last Updated
 PnET Output (Compatible with PnET Succession) September 2018

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