This report reviews available information on the adverse effects of 14 alien vertebrates considered to be ‘significant invasive species’ on islands of the South Pacific and Hawaii.
Invasive Species Taskforce of Pohnpei (iSTOP) strives to enhance and preserve the natural biodiversity of Pohnpei State through collaborative efforts at all levels of our society while cooperating with neighboring states and countries to identify, prevent, and eradicate or manage/control invasive species.
This is Volume I of the Regional Biosecurity Plan for Micronesia and Hawaii.
Citation:
United States Department of the Navy. 2015. Regional Biosecurity Plan for Micronesia and Hawaii, Volume I. Eds. University of Guam and the Secretariat of the Pacific Community.
Palau's National Invasive Species and Biosecurity Strategic Action Plan 2018-2022 describes goals, objectives, and actions for the National Invasive Species Committee (NISC) and associated members.
Little Fire Ant is now finally detected in our neighboring island of American Samoa.
(THIS IS ONLY TEST - PLEASE DO NOT REPLY)
A team from Manaaki Whenua Landcare Research travelled to Rarotonga during July/August 2023 to carry out monitoring of biocontrols released in previous years. The team used drones to conduct monitoring surveillance for the invasive African Tulip tree species, using LiDAR and other imagery techniques.
This newsletter also provides an update on the control of the biocontrols.
The botany of four small, relatively undisturbed tuff cone islands off the east coast of Upolu, Western Samoa, is examined. During a series of visits to the islands, the vegetation was studied in nine sample plots, and a checklist of the 260 species comprising the flora was compiled. Six types of native vegetation are recognized, one of which (Diospyros coastal forest) appears to be unique to tuff cone islands. Casual observations were made on the avifauna and turtle
species, and the ecological significance of the islands is discussed.
Since 1987, I have assisted the Cook Islands Conservation/Environment Service and, more recently, the Takitumu Conservation Area Project and the Avifauna Conservation Programme of the South Pacific Regional Environment Programme (SPREP) to plan and implement a recovery programme for the kakerori, a critically endangered forest bird endemic to Rarotonga. In 1989, the kakerori was one of the 10 rarest birds in the world, and classified as 'critically endangered' (Collar et al. 1994) with a population of just 29 birds. I calculated
The biodiversity of the Pacific region is recognised as being globally significant. The Solomon Islands was recently included into the famous "Coral Triangle", the area of ocean considered to have the highest marine biodiversity in the world. This includes the waters of the Philippines, Indonesia and Papua New Guinea. The Solomon Islands Rainforest Ecoregion is recognised as "one of the world's great Centres of Plant Diversity"
This is a continuation of the survey of islands in Micronesia and American Samoa for invasive plant species requested by the Pacific Islands Committee. Council of Western State Foresters. A
survey of other Micronesian islands was conducted in 1998 and was discussed in a previous report2. This report summarizes a survey of the island of Rota. Commonwealth of the Northern
Mariana Islands, on 5 April 2000. The objectives, as with the previous survey. were three-fold: (1) To identify plant species on the island that are presently causing problems to natural and
The Government of the Cook Islands requested assistance from the US Department of Agriculture, Forest Service, Institute of Pacific Islands Forestry, to conduct a survey of invasive
plant species of environmental concern, similar to surveys previously conducted in Micronesia, American Samoa, Nine, Samoa and Tonga. The survey was carried out from 11 March through
Williamson and Sabath (1982) have demonstrated a significant relationship between modern population size and environment by examining atoll area and rainfall in the Marshall Islands. The present work seeks to extend that argument into prehistory by examining the relationship of ancient habitation sites and size of aroid pit agricultural systems to atoll land area and rainfall regime along the 1,500-3,500 mm precipitation gradient in the Marshall Islands.
Henderson island, a World Heritage Site in the Pitcairn group, south-central Pacific Ocean, has often been thought to have a pristine vegetation. Our archaeological investigations and field observations in 1991-1992, supported by recent observations in
1997, suggest the occurrence of former areas of Polynesian cultivation near to the North and East Beaches, and indicate that about 17 non-native vascular plant taxa have occurred.
The study of dispersal processes of small mammals, and especially of rodents, has a wide range of applications and until recent years there were few publications discussing the
colonisation of 'oceanic' islands by small mammals (cf. Crowell, 1986; Diamond, 1987; Hanski, 1986;Heany, 1986; Lomolino, 1986).
The Tokelau Islands consist of three atolls (Atafu, Nukunonu and Fakaofo) approximately 500 km north of Western Samoa. Their numerous islets are formed mainly of coral sand and rubble with no standing freshwater. Sixty-one plant species have been recorded, 13 of these being introduced and 10 being adventives. There are three vegetation zones, the beach, the beach-crest, and the interior coconut/fern zone with the physiognomy of a humid tropical forest. Marine invertebrates have not been studied.
At the time of the POBSP visit, cats (Felis domestica), dogs
In June/July 2002 an eradication programme to remove Pacific rats from Maninita Island in the Vava'u group of the Kingdom of Tonga was initiated. The techniques used were similar to those
used in successful rat eradications in New Zealand, in that Pestoff 20R pellets and a network of bait stations were used.
Conditions on the island were not what was expected, the forest having been adversely affected by cyclone Waka and subsequent defoliation by caterpillars, resulting in an open forest canopy. Rats were found to be present on the island in high numbers and were breeding.
For one of the species potentially at some risk of poisoning under the proposed rat eradication regime, the Friendly Ground Dove, Nuutele and Nuulua hold populations that are nationally significant. The complete loss of these populations would threaten the survival of the taxon in Samoa. Some authors consider the Samoan doves to be a separate race (Gallicolumba s. stairi) from those in Fiji and Tonga (Watling, 2001). Outside Samoa, the race is only found on the small island of Ofu,