Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats.
Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification.
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) went into force in 1975.
It aims to ensure that international trade in specimens of wild animals and plants does not threaten their survival.
NatureServe conservation status focuses on Latin America, the United States, Canada, and the Caribbean.
NatureServe adds a qualifier for captive or cultivated only (C), which has a similar meaning to the IUCN Red List extinct in the wild (EW) status.
The codes for the Western Australian conservation system are given at Declared Rare and Priority Flora List (abbreviated to DECF when using in a taxobox).
[7] In Germany, the Federal Agency for Nature Conservation publishes "red lists of endangered species".
The National Park, Wildlife and Plant Conservation Department of the Ministry of Natural Resources and Environment is responsible for the regulation of these activities.
The Marine Conservation Society has five levels of ratings for seafood species, as displayed on their FishOnline website.