Preventative measures: A Risk Assessment of Paspalum vaginatum for Hawaii and other Pacific islands was prepared by Dr. Curtis Daehler (UH Botany) with funding from the Kaulunani Urban Forestry Program and US Forest Service. The alien plant screening system is derived from Pheloung et al. (1999) with minor modifications for use in Pacific islands (Daehler et al. 2004). The result is a score of 7 and a recommendation of: "Likely to cause significant ecological or economic harm in Hawaii and on other Pacific Islands as determined by a high WRA score, which is based on published sources describing species biology and behavior in Hawaii and/or other parts of the world."
Mechanical control and grazing is not an option, as plants will resprout from fragments. Shaw and Allen (2003) recommend that vegetation development be monitored with permanent plots before control is considered. The information available for control of cord grass (Spartina spp.) in New Zealand is probably also applicable to P. vaginatum. Please follow these links to view complete profiles of Spartina alterniflora and Spartina anglica, including management information.
Location Specific Management Information
Seashore paspalum (Paspalum vaginatum) is considered invasive at the Hapuna Golf Course in Hawaii. It is currently outcompeting the established Bermuda turf, and a three year study is to be conducted into how to remove P. vaginatum from the course (Gates, 2003).
Two Rivers Urban Park
Seashore paspalum (Paspalum vaginatum) is identified as a species recommended for removal in an alien plant clearing programme at Two Rivers Urban Park (Cape Town, South Africa) (City of Cape Town, 2002).
1. City of Cape Town. 2002. Two Rivers Urban Park spatial development framework and phase 1 management plan. Final Draft. Cape Town Administration, Environmental Branch.
Summary: This management plan details the restoration aims for Two Rivers Urban Park in Cape Town, South Africa.
2. Guezou, A., Pozo, P. and Buddenhagen, C. 2007. Preventing establishment: an inventory of introduced plants in Puerto Villamil, Isabela Island, Galapagos. PLoS. 2 (10): e1042.
Summary: This paper discusses invasive plant species on Isabela Island (Galapagos) and makes recommendations for control and eradication.
3. IUCN/SSC Invasive Species Specialist Group (ISSG)., 2010. A Compilation of Information Sources for Conservation Managers.
Summary: This compilation of information sources can be sorted on keywords for example: Baits & Lures, Non Target Species, Eradication, Monitoring, Risk Assessment, Weeds, Herbicides etc. This compilation is at present in Excel format, this will be web-enabled as a searchable database shortly. This version of the database has been developed by the IUCN SSC ISSG as part of an Overseas Territories Environmental Programme funded project XOT603 in partnership with the Cayman Islands Government - Department of Environment. The compilation is a work under progress, the ISSG will manage, maintain and enhance the database with current and newly published information, reports, journal articles etc.
4. Shaw, W.B. and Allen, R.B. 2003. Ecological impacts of sea couch and saltwater paspalum in Bay of Plenty estuaries. Department of Conservation Science Internal Series, No. 112-118, p. 18. May-June 2003.
Summary: This report describes the ecological impact of P. vaginatum and makes control recommendations.
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