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The World Parks Congress has been organized by IUCN every decade since . The first two Congresses were held in the USA (Seattle, ; Yellowstone and Grand Teton National Parks, ), with the next three in developing countries (Bali, Indonesia, ; Caracas, Venezuela, ; Durban, South Africa, ). (Full disclosure: I was Deputy Secretary-General at Bali and Secretary-General at Caracas). Sydney, Australia, hosted the sixth Congress on – November , welcoming over , participants from countries. The purpose of the Congresses, broadly speaking, is to review progress in protected areas over the previous decade, assess the current state of protected areas, and chart a course for the coming decade.

Inthe1990's,LittleFireAnts(LFAs)founditswaytotheislandofHawaii,mostlikelytravelingwithashipmentof potted plantsfrom Florida.These plants weresubsequentlysold toconsumers along theeastcoast of theIsland, alongwithLittleFireAntcolonieslivinginthepottingmedium.LFAisnowthrivingandcontinuestospread.Fifteenyearsaftertheinitialdetectionin1999,LFAhasspreadtoover4000locationsontheislandofHawaiiandhas beenfoundinisolatedlocationsonKauai,Maui,andOahuIslands.Currenteffortsareexpectedtocontaintheinfestations on the otherislands but signi cant additional investment isneeded tohalt therapid spread of LFA on the island of Hawaii. Increased management expenditures can suppress infestations; reduce spread between sectors; and decrease long-term management costs, damages, and stings.| Animmediateexpenditureof$8millioninthenext2–3yearsplusfollow-upprevention,monitoring,andmitigation treatments will yield $1.210 billion in reduced control costs, $129 million in lowered economic damages, 315 million fewer human sting incidents, and 102 million less pet sting incidents over 10 years.| Over35years,thebene tsinclude$5.496billioninreducedcontrolcosts,$538millionlesseconomicdamages, 2.161 billion fewer human sting incidents, and 762 million fewer pet sting incidents.

The ocean has recently taken a more prominent role on the international policy stage. In June, the United Nations (UN) initiated development of a treaty for conservation of biodiversity on the High Seas. One of the Sustainable Development Goals (SDGs) adopted by the UN in September focuses on the ocean. In early October, the second Our Ocean Conference (OO-2015) provided a high profile platform for nations to tout progress or make promises to protect and restore the ocean. We discuss recent progress in creating and enforcing strongly protected areas, and we emphasize the need to accelerate the pace and draw on scientific knowledge

News article on 6 of 7 Miss Cook Islands Pageant contestants kick-starting NES Clean Up the World campaign.

News article on Miss Cook Islands contestants learning about the environment and invasive species, etc.

Despite the considerable expansion in the number and extent of marine protected areas during the past century, coverage remains limited amid concerns that many marine protected areas are failing to meet their objectives. New estimates of global marine protected area, based on the database maintained by Sea Around Us, revealed a degree of progress towards protecting at least ??% of the global ocean by ????. It is estimated that . ?,??? marine protected areas, covering c. ?.??% (?? million km? ) of the oceans, had been designated by the end of ????. However, protection is generally weak, with c. one-sixth (?.? million km? ) of the combined area designated as no-take areas (i.e. fishing and other extractive activities are prohibited). Additional large tracts of ocean will need to be protected to reach the ??% target, and we investigate hypothetical scenarios for such expansion. Such scenarios offer a one-dimensional measure of progress as they do not address aspects of other global targets, such as Aichi Target ??, which will help to ensure that marine protected areas meet their objectives and achieve conservation outcomes.

The first international goal for establishing marine protected areas (MPAs) to conserve the ocean’s biodiversity was set in 2002. Since 2006, the Convention on Biological Diversity (CBD) has driven MPA establishment, with 193 parties committed to protecting > 10% of marine environments globally by 2020, especially ‘areas of particular importance for biodiversity’ (Aichi target 11). This has resulted in nearly 10 million km2 of new MPAs, a growth of ~360% in a decade. Unlike on land, it is not known how well protected areas capture marine biodiversity, leaving a significant gap in our understanding of existing MPAs and future protection requirements. We assess the overlap of global MPAs with the ranges of 17,348 marine species (fishes, mammals, invertebrates), and find that 97.4% of species have

Intensive commercial whaling caused significant declines in Southern Hemisphere humpback whale (Megaptera novaeangliae) populations. In Fiji, land-based humpback whale surveys undertaken from 1956 to 1958 documented maximum weekly counts of more than 150 humpback whales in parts of the Bligh waters. These records provide an invaluable point of comparison to present-day observations as they occurred immediately prior to very large humpback whale catches in Antarctic waters to the south - and on potential migration - of humpback whales breeding in Fijian waters. We report here on a three-year (2010-2012) land-based survey also conducted in the Bligh waters during which a total of 33 individuals over 480 h were counted from Ovalau Island and 68 individuals over approximately 300 h were observed from Makogai Island. These findings suggest a large decrease in numbers of humpback whales seen in Fiji waters since commercial whaling operations.

The use of rodenticides to control or eradicate invasive rats (Rattus spp.) for conservation purposes has rapidly grown in the past decades, especially on islands. The non-target consequences and the fate of toxicant residue from such rodent eradication operations have not been well explored. In a cooperative effort, we monitored the application of a rodenticide, ‘Brodifacoum 25W: Conservation’, during an attempt to eradicate Rattus rattus from Palmyra Atoll. In 2011, Brodifacoum 25W: Conservation was aerially broadcasted twice over the entire atoll (2.5 km2) at rates of 80 kg/ha and 75 kg/ha and a supplemental hand broadcast application (71.6 kg/ha) occurred three weeks after the second aerial application over a 10 ha area. We documented brodifacoum residues in soil, water, and biota, and documented mortality of non-target organisms. Some bait (14–19% of the target application rate) entered the marine environment to distances 7 m from the shore. After the application commenced, carcasses of 84 animals representing 15 species of birds, fish, reptiles and invertebrates were collected opportunistically as potential non-target mortalities. In addition, fish, reptiles, and invertebrates were systematically collected for residue analysis. Brodifacoum residues were detected in most (84.3%) of the animal samples analyzed. Although detection of residues in samples was anticipated, the extent and concentrations in many parts of the food web were greater than expected. Risk assessments should carefully consider application rates and entire food webs prior to operations using rodenticides.

Seabirds are notoriously sensitive to introduced mammalian predators and eradication programs have benefitted seabird populations and their habitats on numerous islands throughout the world. However, less evidence is available from the tropics as to the benefits of rat eradication. Here, we report the seabird recovery and vegetation dynamics on a small coralline island of the tropical western Indian Ocean, eight years after Norway rat (Rattus norvegicus) eradication. Two species of seabirds were breeding before rat eradication (red-footed and masked boobies, Sula sula and Sula, dactylatra) and, in both species, the number of breeding pairs had an apparent increase of 22?23% per year after rat eradication. Such a high annual growth rate cannot be achieved by auto-recruitment only and our data suggest that immigration from other source populations never occurred in at least one of these species. We suggest that it is rather due to a rapid increase in breeding success, which rapidly increased the observed number of breeders since birds remained in the available-for-counting-as-breeders group for much longer. Two other species, the white tern (Gygis alba) and the brown booby (Sula leucogaster) were recorded breeding in 2014. The former species has not bred on the island since 1856 and the latter has never bred on the island. Plant cover (monospecific formation of the ruderal herb Boerhavia diffusa) dramatically increased from less than 30% of surface coverage to more than 70%. Although the initial restoration project was to eradicate all introduced mammals of the island simultaneously, house mouse (Mus musculus) eradication failed. Mouse density was high 8 years after rat eradication (32 mice/ha in dry season and 52 mice/ha in rainy season) but not higher than at a comparable tropical island of the region (Juan de Nova) where mice coexist with introduced black rats (Rattus rattus) and feral cats (Felis catus). These results are discussed in terms of the direct positive effects of rat eradication on seabirds and plants and the indirect positive effects of post-eradication seabird increase on soil manuring and vegetation recovery. Overall, our results show that on tropical islands, seabird and habitat recovery can be very rapid after rat eradication and should be implemented as a restoration tool wherever possible.