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Pacific Islands Roundtable for Nature Conservation 24th Annual meeting - Friday 26 November 2021

Island and Ocean Ecosystems

Available Online

This report reflects the key outcomes of the 24th PIRT Annual Meeting and is provided for the information of PIRT Members and Working groups as well as other interested organisations, partners and stakeholders.

Becoming Generation Restoration - Ecosystem Restoration for People, Nature and Climate

Environmental Monitoring and Governance, Climate Change Resilience, Island and Ocean Ecosystems

Available Online

The world is facing severe challenges. Billions of people around the world are suffering the consequences of the climate emergency, food and water insecurity and the COVID-19 pandemic. Ecosystems are an indispensable ally as we meet these challenges. Protecting them and managing their resources in a sustainable manner is essential. But just increasing the protection and sustainable management of our remaining natural landscapes and oceans will not be enough, the planet's degraded ecosystems and the huge benefits that they provide must also be restored.

Nature and COVID-19: The Pandemic, the Environment, and the way ahead

Environmental Monitoring and Governance, Island and Ocean Ecosystems

Available Online

McNeely, Jeffrey A.

The COVID-19 pandemic has brought profound social, political, economic, and environmental challenges to the world. The virus may have emerged from wildlife reservoirs linked to environmental disruption, was transmitted to humans via the wildlife trade, and its spread was facilitated by economic globalization. The pandemic arrived at a time when wildfires, high temperatures, floods, and storms amplified human suffering. These challenges call for a powerful response to COVID-19 that addresses social and economic development, climate change, and biodiversity together, offering an opportunity to bring transformational change to the structure and functioning of the global economy. This bio defense can include a ‘‘One Health’’ approach in all relevant sectors; a greener approach to agriculture that minimizes greenhouse gas emissions and leads to healthier diets; sustainable forms of energy; more effective international environmental agreements; post-COVID development that is equitable and sustainable; and nature-compatible international trade. Restoring and enhancing protected areas as part of devoting 50% of the planet’s land to environmentally sound management that conserves biodiversity would also support adaptation to climate change and limit human contact with zoonotic pathogens. The essential links between human health and well being, biodiversity, and climate change could inspire a new generation of innovators to provide green solutions to enable humans to live in a healthy balance with nature leading to a long-term resilient future.

Session 7: How we can better use data & traditional knowledge to make decisions that affect nature (Video)

SPREP Publications, Island and Ocean Ecosystems

Available Online

Monitoring and Informed Decision Making In the context of the pacific Region, this session will explore: 1. The role of targets and indicators in farming information gathered for decision-making regarding how nature is used and protected; 2. Issues around information availability and quality; 3. The range of data platforms and tools for aggregating, housing and making sense of scientific data and traditional knowledge; 4. How decisions are actually made that impact Pacific biodiversity and ecosystems and what sorts of information, if any, are decision-makers using.

Making Peace with Nature : A scientific blueprint to tackle the climate, biodiversity and pollution emergencies

Environmental Monitoring and Governance, Climate Change Resilience, Island and Ocean Ecosystems

Available Online

United Nations Environment Programme

Humanity is waging war on nature. This is senseless and suicidal. The consequences of our recklessness are already apparent in human suffering, towering economic losses and the accelerating erosion of life on Earth. This report represents a scientific blueprint for howclimate change, biodiversity loss and pollution can be tackled jointly within the framework of the Sustainable Development Goals. The report is a synthesis based on evidence from global environmental assessments.

On the verge of a biological crisis: the state of invasive species in the Pacific

Island and Ocean Ecosystems, BRB

Available Online

Cas Vanderwoude

A report prepared by the Invasive Partnership for the Pacific Islands Forum Leaders Meeting, Palau July 2014 as requested by the Micronesian Chief Executives in Resolution 19-01

Predation pressures on sooty terns by cats, rats and common mynas on Ascension Island in the South Atlantic

Island and Ocean Ecosystems, BRB

Available Online

Dickey, R.C.

Hughes, B.J.

Reynolds, S.J.

Despite the presence of invasive black rats (Rattus rattus), common mynas (Acridotheres tristis), and feral domestic cats (Felis catus), sooty terns (Onychoprion fuscatus) breed in large numbers on Ascension Island in the tropical South Atlantic Ocean. These introduced predators impact the terns by destroying eggs or interrupting incubation (mynas), eating eggs (mynas and rats), eating chicks (rats and cats), or eating adults (cats). Between 1990 and 2015, 26 censuses of sooty terns and five of mynas were completed and myna predation was monitored on 10 occasions. Rat relative abundance indices were determined through trapping around the tern colonies and rat predation was monitored by counting chick carcasses. Cat predation was quantified by recording freshly killed terns. Prior to their eradication in 2003, cats had the greatest impact on sooty terns and were depredating 5,800 adults and 3,600 near-fledging chicks (equivalent to the loss of 71,000 eggs) each breeding season. We estimated that 26,000 sooty tern eggs (13% of all those laid) were depredated by approximately 1,000 mynas. Rats were not known to depredate sooty terns prior to cat eradication but in 2005, 131 of 596 ringed (monitored) chicks (22%) were depredated by rats. In 2009 chick carcass density was 0.16 per m2. Predation by rats hugely increased in the absence of cats and was the equivalent of 69,000 eggs. Care is needed when applying our findings to seabirds globally. The scarcity of alternative food sources and seasonally high density of easily available prey in the sooty tern colony may have magnified predation by cats, rats and mynas.

Wetlands of Wallis and Futuna.

Island and Ocean Ecosystems, BRB

Available Online

Secretariat of the Pacific Regional Environment Programme.

In 2014, with support from the French Government, Wallis and Futuna informed SPREP of its intention to identify nationally significant wetlands for future designation as wetlands of international importance (Ramsar Sites) under the Convention on Wetlands (Ramsar, Iran, 1971).

Scaling down (cliffs) to meet the challenge: the Shiants black rat eradication

Island and Ocean Ecosystems, BRB

Available Online

Bambini, L.

Bell, E.

Campbell, G.

Churchyard, T.

Douse, A.

Floyd, K.

Ibbotson, J.

Main, C.E.

Nicolson, T.

Reid, R.

Taylor, P.R.

Tayton, J.

Varnham, K.

Whittington, W.

A successful ground-based eradication of black rats (Rattus rattus) was undertaken on the remote, uninhabited Shiant Isles of north-west Scotland over winter (14 October28 March) 201516. The rat eradication was carried out as part of the Shiants Seabird Recovery Project, which aims to secure long-term breeding habitat for protected seabirds and to attract European storm petrels and Manx shearwaters to nest on the Shiants. Throughout the eradication operation, teams were stationed on two of the three main Shiant islands (Eilean an Tighe, Eilean Mhuire), with access to the third (Garbh Eilean) via a boulder causeway from Eilean an Tighe. Bait (Contrac® blocks containing the anticoagulant bromadiolone 0.005% w/w), was deployed in a grid of 1,183 bait stations covering all areas of the islands and sea stacks. Bait stations were set 50 m apart, with intervals reduced to 25 m in coastal areas of predicted high rat density. Difficult areas were accessed by boat and cliff s of ~120 m in height were accessed by abseiling down ropes made safe using either bolted anchors or ground stakes. The team of staff and volunteers worked through difficult conditions, deploying bait and monitoring intensively for any surviving rats using a combination of tools. The islands were declared rat free in March 2018. This ambitious and challenging project has greatly enhanced UK capacity in rodent eradications for the purposes of conservation.

Long term rodent control in Rdum tal-Madonna yelkouan shearwater colony

Island and Ocean Ecosystems, BRB

Available Online

Cabello, J.S. Santiago

Lago, P.

Varnham, K.

Rodent predation on eggs and chicks is one of the main threats to procellariiform species in the Mediterranean, where the black rat (Rattus rattus) and brown rat (R. norvegicus) have been present on many islands for centuries. The yelkouan shearwater (Puffinus yelkouan) is an endemic Mediterranean seabird species classified as vulnerable. Malta holds up to 10% of the global population; the largest colony, Rdum tal-Madonna (RM), protected as a Natura 2000 site, hosts around 500 breeding pairs. This colony has been monitored since its discovery in 1969. A very low reproductive success due to rat predation was noticed in the late 1990s to early 2000s. In 2007 a seasonal rodent control programme was established during the breeding season of yelkouan shearwater to reduce rat predation on eggs and chicks. Rodent control took place between 2007 and 2010 and was reviewed and continued from 2012 to 2017. Breeding success since 2007 has been higher than 80%. In two other colonies with rat presence and where rodent control did not take place, the breeding success in 2016 and 2017 was substantially lower than in the colony with the rodent control programme. The European storm-petrel (Hydrobates pelagicus melitensis) only breeds in rat-free areas like remote sea caves or islets around the Maltese islands. In 2014, the first breeding attempt by European storm-petrel was recorded on the Maltese mainland at RM with a chick fledging successfully for the first time in 2016. The ongoing LIFE Arcipelagu Garnija project is assessing rat predation in all Maltese yelkouan shearwater colonies in order to establish predator control in the most important yelkouan shearwater breeding sites in 2018.

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