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2009 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Laysan Island Restoration
Region: 1
Station: Papahanaumokuakea Marine National Monument
Contact Person:
Name and Phone Number
Cindy Rehkemper 808-792-9487
Project Description:
(Up to 250 words)
This project will support restoration activities at Laysan Island . Staff and volunteers continue efforts to eradicate alien invasive species such as Indian dropseed (Sporobolus pyramidatus), Bermuda grass (Cynadon dactylon), and Indian fleabane (Pluchea indica) by removing the plants and conducting post-monitoring and treatment of the sites to prevent reestablishment. Another component of the project is native plant propagation and outplanting in areas free of alien invasive species. In addition to the habitat restoration, crew members conduct regular monitoring on the vertebrate species for population health and invertebrate species for new invasives.
List of Invasives Species Targeted:Common NameScientific Name
  Indian Dropseed Sporobolus pyramidatus
Indian Fleabane Pluchea indica
Bermuda Grass Cynadon dactylon
Common Sandbur Cenchrus echinatus
Swinecress Coronopus didymus
Tobacco Nicotonia tobaccum
Project Status: InProgress
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
Each year we treat approximately 55.2 acres for 500,000 Indian dropseed and 50,000 Bermuda grass, and we are increasing the number of Indian Fleabane targeted from over 7000 in 2009 to a targeted 10,000 in 2010 on 9.35 acres. As a part of our long term monitoring and control projects of the Common Sandbur and Swinecress (Coronopus didymus) will continue to monitor the island for new plants. We will conduct 2 Ant surveys to assess the current species on the island and monitor for new introductions. Lastly, we opportunistically monitor and remove Tobacco (Nicotannia tobaccum) and Hairy horseweed (Conyza bonariensis), these are low priority invasive species that will be targeted once other species are controlled.
Total Number of Volunteers: 2
Total Number of Volunteer Hours: 1817
List both new and existing partnerships utilized in this project. (Up to 150 words).
It cannot be overstated that our work would not be possible without the efforts of dedicated volunteers and the assistance of partner conservation organizations. In 2009 the number of full time volunteers utilized by FWS in Papahanaumokuakea for conservation exceeded the number of paid personnel on staff. The FWS Ecological Services continues to provide assistance with threatened and endangered species, specifically risk assessment and mitigation of human activites. The Hawaii State Department of Land and Natural Resources is involved in consultation for invasive species removal and native plant propagation. The USDA is involved in consulting on invasive species management, identification and native plant propagation. The University of Hawaii, Lyon Arboretum contributes to education and maintenance of ex-situ seed storage facilities. National Marine Fisheries aids Laysan in monitoring the endangered Hawaiian Monk Seal population. The National Center for Genetic Resource Preservation is providing long term seed storage for the endangered plants found in Papahanaumokuakea.


Project Results:
Give an overview of the results of the project. Include quantifiable measure of success, such as maps produced, efficacy of control measures, number of sites where invasions were detected early and responded to, number of community contacts, etc. (Up to 250 words).
The Cenchrus echinatus removal, started in 1991, has been a major success, and only one plant has been found in the last year. A total of 250 person hours have been spent in removal of Sporobolus pyramidatus and Cynadon dactylon maintaining a total of 55.2 acres of treated area. There is an estimated 10 acres of uncontrolled Sporobolus and all known Cynadon areas are controlled. April 29 2010 marked 1 year free of Coronopus and no plants have been found since. In 86 person hours an estimated 6861 Pluchea indica have been removed and the all efforts are ongoing.
Number of Acres Treated: 60.2
Number of Acres Inventoried and/or Mapped: 794.822
Number of Acres Restored: 5


Budget: Account for funds in broad categories such as equipment, volunteer stipends, travel, coordinator salary/contract, etc.

Total Grant Amount:

$ $20,000

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies 1579.86 7.9%
Biocontrol Agents
Travel 2755.59 13.8%
Volunteer Stipends
Volunteer Coordinator Salary/Contract 9958.08 49.8%
Restoration Materials
TOTAL 20000.00 100.0%

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?
Assistance with invasive species work from volunteers and contributions to funding is the only way we can maky any real progress in invasive species removal. The problem is huge and pressing even for this small land mass at Laysan Island. Laysan is utilized by many breeding migratory birds and endangered land birds.


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