Search the SPREP Catalogue

228 result(s) found.

Sort by

Publication Year
Sort results by
Created
Sort results by
Updated
Sort results by

You searched for

Tags / Keywords management action-management
X

Lime juice and vinegar injections as a cheap and natural alternative to control COTS outbreaks

Available Online

Moutardler, Gregoire ... et al.

Outbreaks of the corallivorous crown-of-thorns seastar Acanthaster planci (COTS) represent one of the greatest disturbances to coral reef ecosystems in the Indo-Pacific, affecting not only coral reefs but also the coastal communities which rely on their resources. While injection approaches are increasingly used in an attempt to control COTS densities, most of them display severe drawbacks including logistical challenges, high residual environmental impacts or low cost-effectiveness. We tested a new alternative control method based upon acidic injections of cheap, 100% natural products. We investigated the lethal doses, intraand inter-specific disease transmission and immune responses of COTS when injected with fresh lime juice (extracted from local Citrus arantifolia) and white spirit vinegar. High COTS mortality was achieved with small volumes: 1020 ml per seastar induced death in 89%/ 97% of injected specimens after an average 34.3 h/29.8 h for lime juice and vinegar respectively. Highest efficiency was reached for both solutions with double shots of (2 × 10 ml) in two different areas on the body: 100% mortality occurred within 1224 h, which is similar or faster compared with other current injection methods. Multiple immune measures suggested that death was very likely caused by pH stress from the acidic solutions rather than a bacterial infection. Contagion to either conspecifics or a variety of other reef species was not observed, even at COTS densities 15 times higher than the highest naturally reported. 10 to 20 l lime juice/vinegar could kill up to a thousand COTS at a cost of less than 0.05 USD per specimen; no permits or special handling procedures are required. We conclude that injections of lime juice and vinegar offer great advantages when compared to current best practises and constitute a cheap and natural option for all reefs affected by COTS

Invasive mammal eradication on islands results in substantial conservation gains

Available Online

Jones, Holly P.

More than US$21 billion is spent annually on biodiversity conservation. Despite their importance for preventing or slowing extinctions and preserving biodiversity, conservation interventions are rarely assessed systematically for their global impact. Islands house a disproportionately higher amount of biodiversity compared with mainlands, much of which is highly threatened with extinction. Indeed, island species make up nearly two-thirds of recent extinctions. Islands therefore are critical targets of conservation. We used an extensive literature and database review paired with expert interviews to estimate the global benefits of an increasingly used conservation action to stem biodiversity loss: eradication of invasive mammals on islands. We found 236 native terrestrial insular faunal species (596 populations) that benefitted through positive demographic and/or distributional responses from 251 eradications of invasive mammals on 181 islands. Seven native species (eight populations) were negatively impacted by invasive mammal eradication. Four threatened species had their International Union for the Conservation of Nature (IUCN) Red List extinction-risk categories reduced as a direct result of invasive mammal eradication, and no species moved to a higher extinction-risk category. We predict that 107 highly threatened birds, mammals, and reptiles on the IUCN Red List6% of all these highly threatened specieslikely have benefitted from invasive mammal eradications on islands. Because monitoring of eradication outcomes is sporadic and limited, the impacts of global eradications are likely greater than we report here. Our results highlight the importance of invasive mammal eradication on islands for protecting the worlds most imperiled fauna.

Improving invasive ant eradication as a conservation tool : a review

Available Online

Hoffman, Benjamin ... et al.

While invasive species eradications are at the forefront of biodiversity conservation, ant eradication failures are common. We reviewed ant eradications worldwide to assess the practice and identify knowledge gaps and challenges. We documented 316 eradication campaigns targeting 11 species, with most occurring in Australia covering small areas (b10 ha). Yellow crazy ant was targeted most frequently, while the bigheaded ant has been eradicated most often. Of the eradications with known outcomes, 144 campaigns were successful, totaling approximately 9500 ha, of which 8300 ha were from a single campaign that has since been partially re-invaded. Three active ingredients, often in combination, are most commonly used: fipronil, hydramethylnon, and juvenile hormone mimics. Active ingredient, bait, and method varied considerablywith respect to species targeted,which made assessing factors of eradication success challenging. We did, however, detect effects by active ingredient, number of treatments, and method on eradication success. Implementation costs increased with treatment area, and median costs were high compared to invasive mammal eradications. Ant eradications are in a phase of increased research and development, and a logical next step for practitioners is to develop best practices. A number of research themes that seek to integrate natural history with eradication strategies and methodologies would improve the ability to eradicate ants: increasing natural history and taxonomic knowledge, increasing the efficacy of active ingredients and baits, minimizing and mitigating non-target risks, developing better tools to declare eradication success, and developing alternative eradication methodologies. Invasive ant eradications are rapidly increasing in both size and frequency, and we envisage that eradicating invasive ants will increase in focus in coming decades given the increasing dispersal and subsequent impacts.

Pig Trap - Model CEN NC - Cage Trap : effective multi capture, durable, easy to assemble, effective day and night

Available Online

Conservatoire d'espaces Naturels (CEN)

Setting up pig traps.

Pig Trap - Model CEN NC - Rope snare (Brochure) / Piége á cochons - Modéle CEN - Collet-corde

Island and Ocean Ecosystems, BRB

Conservatoire d'espaces Naturels (CEN)

Brochure (French & English) on setting up pig traps.

Awareness Strategy - Management of Water Lettuce (Pistia stratiotes) Aquatic plant

Island and Ocean Ecosystems, BRB

Available Online

Divison of Environment and Conservation

Water lettuce is a free floating aquatic plant in rosettes of green leaves, rosettes occuring singly or connected to others by short stolons whose origins are uncertain. It forms large, dense floating mats. The plant can adapt to life in ponds, dams, lakes and quiet areas of rivers and streams, but cannot withstand salt water. Still continue with observation whether it is to survive in winter.

National Ballast Water Management Strategy 2016-2020 Cook Islands

Waste Management and Pollution Control, BRB

Available Online

Government of Cook Islands

The importance of coastal and marine environments to every aspect of the lives of Pacific Islanders cannot be overstated. Pacific Island Countries (PICs) maintain resource rights and management responsibilities for over 30million square kilometres of ocean, equivalent to the total land area of Canada, China and the USA. The total population of coastal pacific islanders is only 2.6 million. There are 11 square kilometres of ocean for each Pacific Islander. Jurisdictionally, the ocean is 200 times more significant to the average Pacific Islander than it is to the average global citizen.

International Symposium: Managing vertebrate invasive species

U.S. Department of Agriculture, National Wildlife Research Center

International Symposium on, Managing vertebrate invasive species. August 7-9, 2007, Hilton Fort Collins, Fort Collins, Colorado, USA.

Report on Niue Feral Pig Management Pilot Programme, October 2015

Island and Ocean Ecosystems, BRB

Available Online

Craw, Jack

Progress report from Jack Craw to Josie Tamate (Directory General, Ministry of Natural Resources), Brendon Pasisi (Director DAFF), Sauni Tongatule (Director Department of Environment), David Moverly (SPREP) and Huggard Tongatule (Department of Environment).|This is the final progress report on the pilot programme. It covers the visit to Niue September 8 to September 18 2015, with master hunters Glen Osborne and Peter Peeti. The purposes of this trip were to continue the hunting training, progress the toxin trial and attempt to progress the lured enclosure trial.

Plan for the Eradication of Myna Birds from Kiribati 31 March 2015. Draft

Island and Ocean Ecosystems, BRB

Available Online

Dr. Butler, David J.

The Ministry of Environment, Lands and Agricultural Development (MELAD) has received funds through the regional GEF-PAS Invasives project coordinated by the Secretariat for the Pacific Regional Environment Programme (SPREP) to eradicate two species of myna found in Kiribati. The Common Myna (Acridotheres tristis) and the Jungle Myna (A. fuscus) are two of the worlds most destructive invasive species, originally from Asia. They damage food crops such as papaya and breadfruit, attack native birds, nest in the roofs of houses where they make a mess with their droppings, are very noisy, and can carry diseases and parasites.

www.sprep.org © 2021 - 2024. All rights reserved