USGS - science for a changing world

South Florida Information Access (SOFIA)

projects > collection of information on the old world climbing fern for use in a model for control of this invading vine

Collection of Information on the Old World Climbing Fern for Use in a Model for Control of this Invading Vine

boardwalk at Loxahatchee Refuge
Project Investigators: Donald L. DeAngelis, Laura A. Brandt

Project Start Date: 2002 End Date: 2005

Recent Funding: (FY05) USFWS, USGS/BRD


The results of this study will provide core information needed for the control of Old World climbing fern on the Loxahatchee National Wildlife Refuge and throughout the South Florida Ecosystem.

Lygodium microphyllum (Old World climbing fern) is an aggressive and destructive Exotic Pest Plant Council (EPPC) category I invasive plant. It has spread, unabated, across the South Florida landscape compromising and destroying a plethora of habitats along the way. Lygodium's ability to spread rapidly and over a long range is a function of its reproductive structures, small spores that can be carried great distance by air currents. While one study has addressed the seasonality of Lygodium spore production, no one has examined the range of spore dispersal. If the bulk of spores produced land near the source, then eradication efforts can be concentrated in and around dense infestations, but if the majority of the spores are carried a great distance then additional efforts may need to be expended to detect and treat small patches before they become reproductive. There is a need to know the distribution of Old World climbing fern (a category I invasive exotic) on the Arthur R. Marshall Loxahatchee National Wildlife Refuge and throughout South Florida, what factors affect its spread, and the most effective strategies for its control.

Project Summaries



Journal Articles



Project Location Map

Google Map showing project area. This map requires enabled JavaScript to view; if you cannot fully access the information on this page, please contact Heather Henkel.

References to non-U.S. Department of the Interior (DOI) products do not constitute an endorsement by the DOI. By viewing the Google Maps API on this web site the user agrees to these TERMS of Service set forth by Google.

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
This page is:
Comments and suggestions? Contact: Heather Henkel - Webmaster
Script last updated: 02 December 2016 @ 02:34 PM by THF. Record creator: BJM. Record last updated by: KP.