Skip to main content

Search the SPREP Catalogue

Refine Search Results

Related Countries

Tags / Keywords

Language

Available Online

Related Countries

Tags / Keywords

Available Online

14 result(s) found.

Sort by

You searched for

  • Tags / Keywords RMSD meeting report
    X
  • Tags / Keywords ias management piln problem definition prioritization decision-making monitoring measures
    X
Quantifying levels of biological invasion: towards the objective classification of invaded and invasible ecosystems
Available Online

Catford, J.

,

Pysek, P.

,

Richardson, D.

,

Vesk, P.

2011
Biological invasions are a global phenomenon that threatens biodiversity, and few, if any, ecosystems are free from alien species. The outcome of human-mediated introductions is affected by the invasiveness of species and invasibility of ecosystems, but research has primarily focused on defining, characterizing and identifying invasive species; ecosystem invasibility has received much less attention. A prerequisite for characterizing invasibility is the ability to compare levels of invasion across ecosystems. In this paper, we aim to identify the best way to quantify the level of invasion by nonnative animals and plants by reviewing the advantages and disadvantages of different metrics. We explore how interpretation and choice of these measures can depend on the objective of a study or management intervention. Based on our review, we recommend two invasion indices and illustrate their use by applying them to two case studies. Relative alien species richness and relative alien species abundance indicate the contribution that alien species make to a community. They are easy to measure, can be applied to various taxa, are independent of scale and are comparable across regions and ecosystems, and historical data are often available. The relationship between relative alien richness and abundance can indicate the presence of dominant alien species and the trajectory of invasion over time and can highlight ecosystems and sites that are heavily invaded or especially susceptible to invasion. Splitting species into functional groups and examining invasion patterns of transformer species may be particularly instructive for gauging effects of alien invasion on ecosystem structure and function. Establishing standard, transparent ways to define and quantify invasion level will facilitate meaningful comparisons among studies, ecosystem types and regions. It is essential for progress in ecology and will help guide ecosystem restoration and management.
Report of the Fourteenth (14th) and final meeting of the Regional Meteorological Services Directors (RMSD) and the First (1st) Pacific Meteorological Council (PMC-1), 8–12 August 2011, Majuro, Marshall Islands
Available Online

Secretariat of the Pacific Regional Environment Programme (SPREP)

2012
The Regional Meteorological Services Directors (RMSD) Meeting convened for its 14th session at the International Conference Centre in Majuro, Republic of the Marshall Islands from 9–12th August 2011. It was preceded by a Pacific Regional Meteorological Services Directors Workshop in Support of Climate Adaptation Planning in the Pacific Islands on 8th August. The objectives of the meeting were for participants to formulate and establish a clear understanding of the Pacific Meteorological Council (PMC), the Pacific Desk Partnership concept (since renamed as the Pacific Meteorological Desk Partnership, PMDP), and the Pacific Meteorological Strategic Plan (PMSP) (2012– 2015). A total of 54 participants attended the meeting. Primarily the participants were Meteorological Service Directors and representatives from American Samoa, Australia, Cook Islands, Federated States of Micronesia, Fiji, French Polynesia, Guam, Kiribati, New Caledonia, New Zealand, Palau, Papua New Guinea, Marshall Islands, Samoa, Solomon Islands, Tonga, Tuvalu, United States of America and Vanuatu. Representatives of the Finnish Meteorological Institute, SPREP, SPC, WMO, UNESCO-IOC, Institute for Global Environmental Strategies, University of Oklahoma, Pacific ENSO Applications Climate (PEAC) Centre (co-located at the University of Hawaii and the University of Guam) were also present