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NESSC Quarterly Meeting No. 5, Thursday 25 August, 2016

Final report for Samoa's 2015 national water and sanitation baseline survey, on methods, results and outcomes.

Before you leave Samoa, stop and think... Could you be breaking wildlife laws? Souvenirs and handicrafts can sometimes include plant and animal products that are protected under the Convention on International Trade of Endangered Species of Wild Fauna and Flora (CITES).

Before you leave Samoa, stop and think... Could you be breaking wildlife laws? Souvenirs and handicrafts can sometimes include plant and animal products that are protected under the Convention on International Trade of Endangered Species of Wild Fauna and Flora (CITES).

Samoa is home to many threatened species including corals, marine turtles, whales, dolphins and more. The survival of these species is further endangered by the global trade in plants, animals and products that may be made from them.

Breeding success of 5 Cory’s shearwater Calonectris diomedea sub-colonies of Lavezzu Island (Lavezzi Archipelago, Corsica) was checked annually for 25 consecutive years from 1979 to 2004. Between 1989 and 1994, 4 ship rat Rattus rattus controls were performed in several subcolonies. In November 2000, rats were eradicated from Lavezzu Island and its 16 peripheral islets (85 ha) using traps then toxic baits. We compare cost (number of person-hours required in the field) and benefit (Cory’s shearwater breeding success) of control and eradication. The average breeding success doubled when rats were controlled or eradicated (0.82) compared to the situation without rat management (0.45). Moreover, the average breeding success after eradication (0.86) was significantly (11%) higher than after rat controls (0.75). Furthermore, the great variation in breeding success recorded among sub-colonies both with and without rat control declined dramatically after eradication, suggesting that rats had a major impact on breeding success. The estimated effort needed to perform eradication and checking of the permanent bait-station system during the year following eradication was 1360 person-hours. In contrast, rat control was estimated to require 240 or 1440 person-hours per year when implemented by trained and untrained staff, respectively. Within 6 yr, eradication cost is lower than control cost performed by untrained staff and confers several ecological advantages on more ecosystem components than Cory’s shearwater alone. Improved eradication tools such as hand or aerial broadcasting of toxic baits instead of the fairly labour-intensive eradication strategy we used would dramatically increase the economic advantage of eradication vs. control. Therefore, when feasible, we recommend eradication rather than control of non-native rat populations. Nevertheless, control remains a useful management tool when eradication is not practicable.

Samoa's National Environmental Capacity Strategy (NECS) is drawn on the assessment and analysis of priority thematic and cross-cutting capacity needs. These needs have identified priority actions for capacity development and opportunities to promote synergies across the 3 Conventions which are highlighted as project profiles in the NECS. Strategies to implement these project profiles including means of monitoring and evaluation of outcomes are also highlighted in the NECS.

Protecting a species is an aspect of conservation which many organizations and individuals have put effort into so that the balance within the ecosystem can be maintained. Protection implement when factors of threats have been identify. Factors of pressure or predatory that may lead to competition and results in extinction. These are the sequence our world works since the beginning

The community based conservation (CBC)paradigm predicts that sustainable biodiversity can only be achieved if local people perceive benefits from conservation. Through interviews, the situation in Samoa portrays that the CBC of mangroves was received with apprehension because the mangrove biodiversity was more significant than sustaining the livelihood of the local communities. In contrast, Iriomote Island residents were able to achieve maximum socio-economic benefits but to the extent that they were over commercializing the mangrove ecosystem. More research is imperative to find out how biodiversity conservation can be married with sustainable development objectives to sustain the local communities' livelihood.