Conservation in Papua New Guinea
Papua New Guinea together with the West Papua region of Indonesia (New Guinea) make up a major tropical wilderness area that still contains 5% of the original and untouched tropical high-biodiversity terrestrial ecosystems. PNG in itself contains over 5% of the world's biodiversity in less than 1% of the world's total land area. The flora of New Guinea is unique because it has two sources of origin" The Gondwana flora from the south and flora with Asian origin from the west, as a result New Guinea shares major family and genera with Australia and the East Asia, but is rich in local endemic species. The endemicity is a result of mountainous isolation, topographic and soil habitat heterogeneity, high forest disturbance rates and abundant aseasonal rainfall year-round. PNG boasts some 15-21,000 higher plants, 3,000 species of orchids, 800 species of coral, 600 species of fish, 250 species of mammals and 760 species of birds and 8 species of tree-kangaroos out of which 84 genera of animals are endemic. Ecosystems range from lowland forests to montane forests, alpine flora down to coastal areas which contains some of the most extensive pristine mangrove areas in the world. Much of this biodiversity has remained intact for thousands of years because the ruggedness of the terrain made the interior lands inaccessible; furthermore low population density and restrictions on the effectiveness of traditional tools, ensured that these biodiversity was never overexploited.
Even though this biodiversity is on just 1% of the world land mass, it has both global and local value. Most of the ecosystem service provided by the forests and oceans (e.g. water cycling, carbon cycling) is impartial to political boundaries. Within the country, about 79% of the PNG population depend on the biological resource to sustain their physical, spiritual and social livelihoods. The biological resources are a source of food, building material, medicine for minor ailments, logs for canoes. The traditional society revered, and respected nature because it was considered a gift from some ancestor". Currently, the harvesting of natural resource for export is a source of income that sustains the modern PNG economy.
The PNG government recognized the relationship between the people and nature and at independence, provision was made in the constitution for “…all necessary steps to be taken to give adequate protection to all our valued birds, animals, fish, insects, plants and trees”". Currently, biodiversity is explicitly protected by the following legislation: Fauna Act/1982, Conservation areas Act/1980, 1992, the Crocodile Trade Act/1982 and the International Trade Act/1982. The Department of Environment and Conservation (DEC) is the government agency responsible for biodiversity conservation.
The PNG government’s effort to conserve biodiversity is supported by international environment conservation Non-governmental organizations (NGOs). The major government research organizations include the Forestry Research Institute (FRI), and the National Agriculture Research Institute (NARI). The government owned universities: the University of Papua New Guinea (UPNG) and the University of Technology (UNITECH) also contribute to novel researches into the PNG biodiversity. The government research organizations tend to place emphasis on species with economical value to PNG. The NGOs, on the other hand are the driving force for biodiversity conservation for the sake of conservation. The major international NGO's assistng in biodiversity conservation include: Conservation International (CI), The Binatang Research Centre (BRC), Wildlife Conservation Society (WCS), World Wildlife Fund (WWF) and The Nature Conservancy (TNC). Indigenous PNG NGO's which had active conservation programmes (Conservation Melanesia, Melanesian Environment Foundation, PNG Research & Conservation Foundation, Village Development Trust, Pacific Heritage Foundation, Partners with Melanesia) have largely faded from the scene, leaving conservation today mostly to the PNG offices of the large international conservation organisations; blame for the demise of the homegrown organisations has, in at least one instance, been placed on the afore-mentioned international conservation organisations.
Status of biodiversity protection
The effort by the PNG government to protect biodiversity has resulted in 44 existing terrestrial protected areas using the International Union for the Conservation of Nature and Natural Resources (IUCN) categories. These protected areas account for 1.6% of the total land area. A study of biodiversity identified a further 398 areas as candidates for conservation. This would increase the total protected areas to 16.8% of the total country area.
Included in the PNG protected area list, but not formally recognized by IUCN is the terrestrial Wildlife Management Area (WMA). WMA is an Integrated Conservation and Development Project (ICAD), which seeks to conserve biological diversity by involving landowners. The idea behind the project is that income generating activities, from the biological diversity would encourage people living in these areas to conserve, because such projects would link the value of these resources to living standard and also access to markets. The progress of WMA’s is yet to be evaluated.
Apart from local conservation efforts, PNG is also a signatory to international conventions and treaties. These international treaties include ". The International Plant protection Convention (1951),The Convention on the prevention of Marine Pollution by Dumping of Wastes and other matter (1972); The convention on the International Trade in Endangered Species of Wild Flora and Fauna (CITES); The RAMSAR Convention on Wetlands of International Importance (1992); Convention on Biological Diversity (1992) and the Convention on the Conservation of Migratory Species of Wild Animals. PNG is also in partnership with other nations in the Oceania region and is a signatory to the regional convention, The Convention on Conservation of Nature in the South Pacific (APIA Convention).
Challenges to the conservation efforts
Despite the provision for conservation in the legal framework, as well as interest shown by the international organizations, it is still a challenge to carry out conservation in PNG.
The land tenure, wherein the communities own 97% of the land makes it difficult for the government or any conservation organisation to procure land for conservation. The land is believed to be an inheritance from some mystical ancestor and therefore, cannot be sold. Therefore, involving communities in WMA was identified as being compatible with the PNG land tenure system. The PNG constitution recognised this and empowered the landowners to be involved with conservation on their own land. However, the progress of WMA’s is yet to be evaluated.
PNG raises most of its revenue from the extraction of natural resources; as such environmental destructive developmental projects have always taken precedence over environmental protection. For instance, the logging industry in PNG has been identified as the main source of widespread overexploitation of forest as well as species dependent on the forests. About 23% of the 50,000-60,000 ha cleared permanently is done by industrial logging. The forest that took millions of years to grow is deforested at an average rate of 1% per year. The reluctance of government support for conservation can be seen in government documents containing recommendations which are very general with no defined goal for the future of conservation.
The increase in human population (3.2 % children per child bearing female) has increased the per capita consumption of the biological resources. For instance, the pressure to hunt big game for food has increased with the growth of population, this situation is exacerbated by the fact that when these animals become rarer, their value will resulting in added pressure to acquire them. The rate and efficiency of harvesting has also increased, aided by modern and efficient harvesting implements.
Furthermore is the misconception by the populace that natural resource is infinite. For instance, some coastal communities practice “dynamite fishing”, without knowing that this practice not only kills fish and other marine organisms indiscriminately, it also destroys the coral reefs. Most coastal communities have little understanding how fish stocks are recruited and maintained in the oceans.
There has been strong debate about whether conservation driven by international NGOs is truly sustainable in PNG; certain large integrated conservation-development projects operated by the local offices of these international NGOs has come under fire, and broader complaints have surfaced. The criticism is that international conservation NGOs have become corporate entities in a way that no longer mirrors the way indigenous conservation initiative has naturally evolved in countries prior to their existence.
The effects of climate change and the introduction of exotic species add another dimension on to the challenge of conservation. The potential impacts from climate change (changes in geographical range, morphology, physiology and phenology) on terrestrial species are shown to be happening elsewhere; however no formal studies have been conducted on PNG terrestrial species as yet. However, the effects of climate change are definitely showing on the coastlines. Rise in sea level is starting to displace people in low lying islands. Furthermore, coral bleaching, an effect of high temperatures and increased carbon dioxide in oceans was observed from the PNG waters in 1996. In the case of the introduced species, since the 1950s, 26 species of fresh water fish were introduced into PNG, out of which 11 species are now established in the fresh water systems and competes for resources with the 214 native fresh water species. The Mozambique tilapia (Oreochromomis mossambica) was introduced in 1954, as a protein supplement. Currently, the tilapia is very widespread and important as food for some communities. However, it has a negative effect on indigenous fauna in lakes and rivers because of its prolific breeding and bottom feeding habit. Furthermore, studies have shown that the over the years the there has been a decrease in the native fish catch and an increase in the introduced tilapia.
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Conservation in Oceania Sovereign states Dependencies and
- American Samoa
- Christmas Island
- Cocos (Keeling) Islands
- Cook Islands
- Easter Island
- French Polynesia
- New Caledonia
- Norfolk Island
- Northern Mariana Islands
- Pitcairn Islands
- Wallis and Futuna
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