The IUCN Red List of Ecosystems Categories and Criteria is a global standard for how we assess the conservation status of ecosystems, applicable at local, national, regional and global levels. The Red List of Ecosystems evaluates whether ecosystems have reached the final stage of degradation (a state of Collapse), whether they are threatened at Critically Endangered, Endangered or Vulnerable levels, or if they are not currently facing significant risk of collapse (Least Concern).
Assessment and evaluation
Tools in this family synthesise and assess knowledge relative to status, function, and drivers of nature, nature’s contributions to people, human well-being, and the connections between these. These include scenarios, management effectiveness evaluations, quantitative modelling, cost–benefit analysis, and trade-off analysis.
The IUCN Red List of Threatened Species™ is the most comprehensive, objective database of the global conservation status of species. It evaluates the extinction risk of thousands of species and subspecies. The IUCN aims to have each species re-evaluated in a peer reviewed manner every five years if possible, or at least every ten years. It provides information about range, population size, habitat and ecology, use, trade, threats, and conservation actions.
The IUCN Environmental Impact Classification of Alien Taxa (EICAT) is a simple, objective and transparent method for classifying alien taxa in terms of the magnitude of their detrimental environmental impacts in recipient areas.
Marxan is a suite of tools designed to help decision makers find good solutions to conservation planning problems. This includes free software that can be used to solve several types of planning problems and extensive documentation and examples describing a framework for approaching conservation planning. Marxan is the most frequently used conservation planning software and has been applied to hundreds of spatial conservation planning problems around the world.
A method providing time-series of marine fisheries catches in the waters within the Exclusive Economic Zones (EEZ) since 1950, the first year that the Food and Agriculture Organization of the United Nations (FAO) produced its annual compendium of global fisheries statistics.
Mapping ecosystem services can show supply, demand, trends and other aspects relating to ecosystem services. There are various techniques for making maps. Several mapping themes are described in this method brief. Manuals, guidelines, and databases are proposed which offer different kinds of guidance on this topic.
Scoping ecosystem services for impact assessment (WRI) is a manual for identifying ecosystem services that have an impact on or could be impacted by project implementation – it is a stepwise approach developed by the World Resource Institute.
Participatory economic valuation methods incorporate stakeholder perceptions, preferences and value categories into ecosystem service valuation approaches.
Scenarios are developed for thinking about the future and longer-term planning - especially useful when considering the links between ecosystem services and development.
Stakeholder analysis is a method used for identifying and characterizing stakeholders, their relationships, resources, and interests related to a project or policy issue. It is particularly useful for initial scoping of an ES assessment.