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Mitochondrial DMA Profiling to Combat the Illegal Trade in Tortoiseshell Products
Environmental Governance, Biodiversity Conservation
Available Online

Bell, I P

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Dutton, P H

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Frey, A

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Hof, C A M

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Jensen, M P

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LaCasella, E L

2021
Hawksbill turtles (Eretmochelys imbricata) are exploited for their beautiful shell known as tortoiseshell or bekko, making them extremely vulnerable in the illegal global trade of tortoiseshell products. In this study, we developed an effective, standardized method using a commercially available kit to extract DNA and obtain informative mitochondrial DNA (mtDNA) control region sequences (∼800 bp) from hawksbill turtle products in order to trace the sample back to a likely stock origin. We also sequenced additional skin samples from nesting beaches of Milman Island, Australia and Arnavon Island, Solomon Islands to add to the baseline data for hawksbill turtles in the Indo-Pacific. Our results indicate that nine of the 13 tortoiseshell products obtained from Papua New Guinea and Solomon Islands were from turtles with haplotypes found primarily at the Solomon Islands rookery and did not match those from nesting populations in Australia or SE Asia, with the exception of one haplo type also found in 3% of turtles at Milman Island. We also found that 23% of the market samples have haplo types only documented in foraging populations, which illustrates the urgent need for more extensive sampling of rookeries to fill gaps in the reference baseline database. Nevertheless, our study results demonstrate an effective methodology for obtaining DNA of sufficient quantity and quality from hawks bill turtle products.
Global warming and the future of Pacific Island Countries
Climate Change Resilience
Available Online

Tisdell Clem

2007
This article briefly outlines the cause of global warming, its trends and consequences as indicated by the International Panel on Climate Change. Sea-level rise is one consequence of particular concern to Pacific island states. It also reviews the views of economists about connections between economic growth and global warming. Whereas the majority of economists did not foresee a conflict between economic growth and global warming, the possibility of such a conflict is now more widely recognized following the Stem Report. International efforts, such as through the Kyoto Protocol, to reduce greenhouse gas emissions and their atmospheric concentration are discussed and prospects for post-Kyoto policies are considered. It is predicted that a significant reduction in global greenhouse gas emissions is unlikely to be achieved in the foreseeable future due to conflicting national interest (a prisoners' dilemma problem) and because is will take time to develop new technologies which will reduce greenhouse gas emissions. However, payment for greenhouse gas emissions (for example, via tradable permits) will accelerate desirable technological advance. Both international political action and efforts to develop and use technologies that lower greenhouse gas emissions need to be pursued. Given current and likely increases in greenhouse gas emissions, continuing global warming in this century appears to be inevitable and consequently Pacific island states will be adversely affected by sea-level rise and climate change. How they will be affected and to what extent is discussed together with their ability to cope with the emerging problem Ways are also examined of addressing the consequences for Pacific island states of global warming.