Search the SPREP Catalogue

757 result(s) found.

Sort by

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

You searched for

Tags / Keywords invasive species
X

A technical assessment of the current agricultural conditions of Angaur Island Palau: with recommendations for the sustainable use of the islands natural resources.

Available Online

Bishop, Robert V

McGregor, Andrew M

Angaur is a 8.4 sq. km island located (654' N, 134 09' E) in the southwestern Palau Islands. The island makes up one of the Republic of Palaus 16 states. Angaur has suffered considerable land degradation due to past phosphate mining as well as military action during WWII. Land degradation problems in recent years have been compounded by El NiñoSouthern Oscillation (ENSO) high tides exacerbated by a gradual increase in average sea level attributed to climate change.

Costs and benefits of rodent eradication on Lord Howe Island Australia

Island and Ocean Ecosystems, BRB

Available Online

Bennett, Jeff

Gillespie, Robert

Invasive species compete with endemic species and if successful can displace native species in the host region (Cororaton et al., 2009).

Solomon Islands - National Biodiversity Strategic Action Plan (NBSAP) 2016-2020

Available Online

The biodiversity within the Solomon Island's geographical and political boundary are continuously under pressure from habitat destruction, overexploitation, waste, invasive species and climate change. Capacity constraints emanating from the absence of biodiversity values, institutional constraints, inadequate finance and the lack of scientific information are consequently undermining effort to lessen these pressures on biodiversity.

Guidelines for invasive species planning and management on islands

Island and Ocean Ecosystems, BRB

Available Online

What are the guidelines for? Provide a comprehensive framework for invasive species management on islands.

Potential impact of climate change on the distribution of six invasive alien plants in Nepal.

Available Online

Shrestha Uttam Babu

The biological invasions have been increasing at multiple spatial scales and the management of invasive alien species is becoming more challenging due to confounding effects of climate change on the distribution of those species. Identification of climatically suitable areas for invasive alien species and their range under future climate change scenarios areessentialfor long-term management planningofthesespecies. Using occurrence data of six of the most problematic invasive alien plants (IAPs) of Nepal (Ageratum houstonianum Mill., Chromolaenaodorata (L.) R.M. King & H. Rob., Hyptis suaveolens (L.) Poit., Lantana camara L., Mikania micrantha Kunth, and Parthenium hysterophorus L.), we have predicted their climatically suitable areas across the country under the current and two future climate change scenarios (RCP 4.5 scenarios for 2050 and 2070). We have developed an ensemble of eight different species distribution modelling approaches to predict the location of climatically suitable areas. Under the current climatic condition, P. hysterophorus had the highest suitable area (18% of the total countrys area) while it was the lowest for M. micrantha (12%). A predicted increase in the currently suitable areas ranges from 3% (M. micrantha) to 70% (A. houstonianum) with the mean value for all six species being 29% under the future climate change scenario for 2050. For four species (A. houstonianum, C. odorata, H.suaveolens and L. camara), additional areas at elevations higher than the current distribution will provide suitable habitat under the projected future climate. In conclusion, all six IAPs assessed are likely to invade additional areas in future due to climate change and these scenarios need to be considered while planning for IAPs management as well as climate change adaptation.

Insects of Samoa and other Samoan terrestrial arthropoda. Part IV

Available Online

Aurivillius, Chr.

Blair, K.G.

Fleutiaux, E.

Jordan, Karl

Kleine, R.

Perkins, R.C.L.

Van Zwaluwenberg, R.H.

Although a monograph, or series of papers, dealing comprehensively with the land arthropod fauna of any group of islands in the South Pacific may be expected to yield valuable results, in connection with distribution, modification due to isolation, and other problems, no such work is at present in existence.

Economic and environmental threats of alien plant, animal, and microbe invasions

Available Online

Aquino, T.

Janecka, J.

McNair, S.

O'Connel, C.

Pimentel, David.

Russel, L.

Simmonds, C.

Tsomondo, T.

Wightman, J.

Wong, E.

Zern, J.

Quantifying the environmental damage and loss of biodiversity due to alien species invasions worldwide is complicated by the fact that only some 1.5 million of the estimated 10 million species on earth have been identified and described. The total numbers of introduced species in the United States, the United Kingdom, Australia, South Africa, India, and Brazil range about 2000 to 50,000 species

Prognosis for ecosystem recovery following rodent eradication and seabird restoration in an island archipelago.

Available Online

Holly P. JonES

Invasive species are widespread and can have devastating effects on biota, especially insular biota. Invasive species eradications are increasingly employed to promote island recovery to preinvasion states. However, it remains unclear if additional restoration actions may be required on islands that were once heavily reliant on seabird guano for ecosystem functions. Active seabird augmentation has been suggested as necessary to exact ecosystem recovery on contemporary timescales in some cases. I use two experiments on offshore islands in Cook Strait, New Zealand, to test the hypothesis that seabird restoration will restore island ecosystem functioning following invasive rodent removal. The first is a small-scale single-island fertilization experiment that simulates seabird recovery.

Global rise in emerging alien species results form increased accessibility of new source pools

Island and Ocean Ecosystems, BRB

Available Online

Alain, Roques

Alexander, Mosena

Andrew M, Liebhold

Barbara, Tokarska-Guzik

Benoit, Guenard

Bernd, Blasius

Bernd, Lenzner

Cesar, Capinha

Charlotte, E Causton

Darren, F Ward

David, Pearman

Dietmar, Moser

Eckehard, G Brockerhoff

Ellie, E Dyer

Evan, PEconomo

Franz, Essl

Giuseppe, Brundu

Hanno, Seebens

Heinke, Jager

Helen E, Roy

Ingolf, Kuhn

Jan, Pergl

John, Kartesz

Jonathan, M Jeschke

Julissa, Rojas-Sandoval

Katerina, Stjerova

Kevin Walker

Laura, Celesti-Grapow

Marc, Kenis

Margarita, Arianoutsou

Mark, van Kleunen

Marten, Winter

Michael, Ansong

Misako, Nishino

Nicol, Fuentes

Petr, Pysek

Philip, E Hulme

Piero, Genovesi

Riccardo, Scalera

Shyama, Pagad

Silvia, Rossinelli

Stefan, Dullinger

Stefan, Schindler

Stephanie, Rorke

Sven, Bacher

Takehiko, Yamanaka

Tim M, Blackburn

Wayne, Dawson

Wolfgang, Nentwig

Wolfgang, Rabitsch

Our ability to predict the identity of future invasive alien species is largely based upon knowledge of prior invasion history. Emerging alien speciesthose never encountered as aliens beforetherefore pose a significant challenge to biosecurity interventions worldwide. Understanding their temporal trends, origins, and the drivers of their spread is pivotal to improving prevention and risk assessment tools. Here, we use a database of 45,984 first records of 16,019 established alien species to investigate the temporal dynamics of occurrences of emerging alien species worldwide. Even after many centuries of invasions the rate of emergence of new alien species is still high: One-quarter of first records during 20002005 were of species that had not been previously recorded anywhere as alien, though with large variation across taxa. Model results show that the high proportion of emerging alien species cannot be solely explained by increases in well-known drivers such as the amount of imported commodities from historically important source regions. Instead, these dynamics reflect the incorporation of new regions into the pool of potential alien species, likely as a consequence of expanding trade networks and environmental change. This process compensates for the depletion of the historically important source species pool through successive invasions. We estimate that 116% of all species on Earth, depending on the taxonomic group, qualify as potential alien species. These results suggest that there remains a high proportion of emerging alien species we have yet to encounter, with future impacts that are difficult to predict.

Zero-tolerance biosecurity protects high-conservation-value island nature reserve.

Available Online

Scott,John K. McKirdy, Simon J. van der Merwe, Johann Green, Roy Burbidge, Andrew A. Pickles, Greg Hardie,Darryl C. Morris, Keith Kendrick, Peter G. Thomas, Melissa L. Horton, Kristin L. OConner, Simon Downs, Justin Stoklosa, Richard Lagdon, Russell Marks, Barbara Naim, Malcolm Mengersen, Kerrie

Barrow Island, north-west coast of Australia, is one of the worlds significant conservation areas, harboring marsupials that have become extinct or threatened on mainland Australia as well as a rich diversity of plants and animals, some endemic. Access to construct a Liquefied Natural Gas (LNG) plant, Australias largest infrastructure development, on the island was conditional on no non-indigenous species (NIS) becoming established. We developed a comprehensive biosecurity system to protect the islands biodiversity. From 2009 to 2015 more than 0.5 million passengers and 12.2 million tonnes of freight were transported to the island under the biosecurity system, requiring 1.5 million hrs of inspections. No establishments of NIS were detected. We made four observations that will assist development of biosecurity systems. Firstly, the frequency of detections of organisms corresponded best to a mixture log-normal distribution including the high number of zero inspections and extreme values involving rare incursions. Secondly, comprehensive knowledge of the islands biota allowed estimation of false positive detections (62% native species). Thirdly, detections at the border did not predict incursions on the island. Fourthly, the workforce detected more than half post-border incursions (59%). Similar approaches can and should be implemented for all areas of significant conservation value.

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