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SPREP-Tok : Issue 52. March, 2019.

SPREP Publications

Available Online

Secretariat of the Pacific Regional Environment Programme.

A monthly e-bulletin of activities and assistance from the Secretariat of the Pacific Regional Environment Programme to its member countries.

SPREP-Tok : Issue 51. February, 2019.

SPREP Publications

Available Online

Secretariat of the Pacific Regional Environment Programme.

A monthly e-bulletin of activities and assistance from the Secretariat of the Pacific Regional Environment Programme to its member countries.

A practical guide to the effective design and management of MPAs for sharks and rays.

Biodiversity Conservation

Available Online

Cornish, A

Simpendorfer, C

Shark and ray numbers are declining globally, and a quarter of all species are believed to be threatened with extinction.

Rapid assessment toolkit for sharks and rays.

Biodiversity Conservation

Available Online

Rigby, C L

White, W T

Concerns for the future of sharks and rays have been growing for some time. In 1999, an International Plan of Action for the Conservation and Management of Sharks (IPOA) was adopted.

SPREP-Tok : Issue 54. May, 2019.

SPREP Publications

Available Online

Secretariat of the Pacific Regional Environment Programme (SPREP)

A monthly e-bulletin of activities and assistance from the Secretariat of the Pacific Regional Environment Programme to its member countries.

SPREP-Tok : Issue 55. June, 2019.

SPREP Publications

Available Online

Secretariat of the Pacific Regional Environment Programme (SPREP)

A monthly e-bulletin of activities and assistance from the Secretariat of the Pacific Regional Environment Programme to its member countries.

Life-history comparisons between the native range and an invasive island population of a colubrid snake

Biodiversity Conservation, BRB

Available Online

Alcaraz, S.E.

Fisher, R.N.

Fisher, S.R.

Gallo-Barneto, R.

López Jurado, L.F.

Patino-Martinez, C.

Rochester, C.J.

Invasive snakes can lead to the rapid extinction of endemic vertebrates on insular ecosystems, usually because snakes are an efficient and novel predator. There have been no successful (i.e. complete) eradications to date of invasive snakes on islands. In this study we assess a novel invasion on Gran Canaria in the Canary Islands. The invader, the California king snake (Lampropeltis californiae), arrived from California via several generations in the pet trade. King snakes are captive bred for various phenotypes, and first were detected in the wild on Gran Canaria in the 1990s. Because very little natural history data exist from within their native range, we focused on developing datasets from native habitats to compare with similar data for the introduced snakes in the Canary Islands. We found that most aspects of the snakes life history have not changed since invasion, except that there appears to be a lower level of juvenile recruitment along with an increase in the length and body mass of adult snakes on Gran Canaria. We identified environmental parameters for when capture/trapping could be completed to reduce eff ort and maximize success. Additionally, we show different trap success on the various life stages of the snakes. Risk assessments could be required prior to permitting pet trade or allowing captive bred snakes into regions where they are not native.

Population assessment of a novel island invasive: tegu (Salvator merianae) of Fernando de Noronha

Biodiversity Conservation, BRB

Available Online

Abrahão, C.R.

Dias, R.A.

Ferreira, F.

Russell, J.C.

Silva, J.C.R.

Fernando de Noronha is an oceanic archipelago in the Atlantic Ocean, 345 km off shore from the Brazilian coast. It comprises 21 islands and islets, of which the main island (FN) is 17 km2 with a rapidly growing tourism industry in the last decades. Despite being a protected area and bearing Ramsar and UNESCO World Heritage site status, it is threatened by multiple terrestrial invasive species since its colonisation in the early 16th century. Invasive species and the increasing tourism contributes to a list of at least 15 endangered or critically endangered species according to IUCN criteria. The black and white tegu (Salvator merianae) is the largest lizard in South America, occurring in most of the Brazilian territory and reaching up to 8 kg and 1.6 m from head to tail. As an omnivorous and opportunistic lizard, it feeds on a variety of available items, including smaller vertebrates and eggs. The introduction of the tegu to FN as well as its immediate impact on local fauna were not recorded; however, its ongoing impact is expected to be high. We captured and marked 103 tegu in FN during the months of February and November of 2015 and 2016. We also counted animals by line-transect census in a sparsely inhabited and an uninhabited area of FN. Body size affected the capture probabilities, while season and sex had little or no effect. Densities estimated by capture-recapture in the sparsely inhabited area varied from 2.29 to 8.28 animals/ha according to sampling season. Line transect census in the same area revealed a density of 3.98 (±1.1) animals/ha and in the uninhabited area 13.83 (±3.9) animals/ha. Home range was 10.54 ha, ranging from 7.36 to 15.33 hectares. Tegu activity decreased in the months of July and August of 2015. Results from this study can assist conservation managers and decision makers to implement a science-based tegu management programme in the future.

Five eradications, three species, three islands: overview, insights and recommendations from invasive bird eradications in the Seychelles

Biodiversity Conservation, BRB

Available Online

Agricole, J.

Angell, G.

Banville, P.

Bunbury, N.

Constance A.

Fleischer-Dogley, F.

Friedlander J.

Haverson, P.

Leite, L.

Mahoune, T.

Melton-Durup, E.

Moumou, J.

Page, N.

Raines, K.

van de Crommenacker, J.

Management and eradication techniques for invasive alien birds remain in their infancy compared to invasive mammal control methods, and there are still relatively few examples of successful avian eradications. Since 2011, five separate eradication programmes for invasive birds have been conducted on three islands by the Seychelles Islands Foundation (SIF). Target species were prioritised according to their threat level to the native biodiversity of the UNESCO World Heritage Sites of the Seychelles, Aldabra Atoll and Vallée de Mai, which SIF is responsible for managing and protecting. Red-whiskered bulbuls (Pycnonotus jocosus) and Madagascar fodies (Foudia madagascariensis) occurred on Assumption, the closest island to Aldabra, which, at the time, had no known introduced bird species. The growing population of ring-necked parakeets (Psittacula krameri) on Mahé posed a threat to endemic Seychelles black parrots (Coracopsis barklyi) on Praslin where the Vallée de Mai forms their core breeding habitat. In 2012, red-whiskered bulbuls and Madagascar fodies were detected on Aldabra, so an additional eradication was started. All eradications used a combination of mist-netting and shooting. The intensive part of each eradication lasted three years or less. On Assumption, 5,279 red-whiskered bulbuls and 3,291 Madagascar fodies were culled; on Mahé, 545 parakeets were culled; and on Aldabra 262 Madagascar fodies and one red-whiskered bulbul were culled. Each programme underwent 12 years of follow-up monitoring before eradication was confi rmed, and four of the fi ve eradications have been successful so far. None of these species had previously been eradicated in large numbers from other islands so the successes substantially advance this fi eld of invasive species management. The challenges and insights of these eradications also provide unique learning opportunities for other invasive avian eradications.

Greening the Samoa 2019 Pacific Games (English & Samoan versions)

Waste Management and Pollution Control

Available Online

Secretariat of the Pacific Regional Environment Programme.

Short videos (English & Samoan versions) about Greening the Pacific Games in Samoa in 2019.

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