IUCN Red List Sample Clauses

IUCN Red List. Data on threats to species represent a core part of Red List assessments, and BirdLife International collates and compiles the latest information on threats to species through its ongoing programme to reassess all bird species every four years. The assessment of threats is done at species level via a combination of expert consultation (in collaboration with e.g. the respective IUCN Species Survival Commission (SSC) Specialist Groups) and bibliographic searches for studies reporting threats to each species. AEWA has applied the Red List threat assessment system in its action planning process. Information on major threats to all Globally Threatened and Near Threatened species is required (coded to the lowest level) using a standard hierarchal Threats Classification Scheme developed by the IUCN . This threat classification scheme is based on a hierarchal scheme of three levels, with 11, 31 and 99 nested categories respectively, and was developed to improve information sharing and learning among conservation practitioners (Xxxxxxxx et al. 2008) aiming to help practitioners, managers and/ or decisionmakers to: • Identify threats occurring at a site or affecting species. • Tally the frequency of threats across sites, at various scales. • Link targets, threats, contributing factors and actions, and to be able to share these datasets. An overall Impact score for each threat and species is estimated as the sum of individual scores of timing (when the threat is taking place), scope (extent of the population affected) and severity (rate of reduction of the population). Each of these factors is scored between 0 and 3 (Table 4.1). The overall level of impact for each is assigned as: • High impact (score 8-9) • Medium impact (score 6-7) • Low impact (score 3-5) • Negligible/ no impact (score 0-2) Table 4.1: Scoring of timing, scope and severity for the IUCN Red List14