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 2017
 Biomass Succession May 2018
 Forest Carbon Succession March 2017
 Net Ecosystem Carbon & Nitrogen Succession June 2018
 PnET Succession June 2018

Universal Disturbance and Output Extensions: Compatible with ALL succession extensions
Name Last Updated
 Age Reclassification Output June 2017
 Base Biological Disturbance Agents June 2017
 Base Epidemiological Disturbance Agent April 2017
 Base Fire August 2017
 Base Harvest March 2018
 Base Wind June 2017
 BFOLDS Fire Regime Module  March 2014
 Cohort Statistics Output June 2017
 Dynamic Fuels & Fire System June 2017
 Linear Wind September 2016
 Local Habitat Suitability Output November 2017
 Maximum Species Age Output June 2017

Biomass Extensions: Compatible with Biomass, PnET, and NECN Succession
 Name Last Updated
 Biomass-by-Age Output May 2018
Biomass Browse June 2016
 Biomass Fuels May 2018
 Biomass Harvest May 2018
 Biomass Insects June 2017
 Biomass Output May 2018
 Biomass Reclassification Output May 2018
 Land Use Change+ March 2016

Other Extensions: Compatible with various
 Name Last Updated
 PnET Output (Compatible with PnET Succession) June 2018
 SCRAPPLE (Compatible with NECN Succession) June 2018

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