Yahoo Search Busca da Web

Resultado da Busca

  1. Há 3 dias · As of September 2016, the International Union for Conservation of Nature (IUCN) lists 1674 data deficient plant species. 7.6% of all evaluated plant species are listed as data deficient. The IUCN also lists 18 subspecies and 57 varieties as data deficient. No subpopulations of plants have been evaluated by the IUCN.

  2. 16 de mai. de 2024 · Additionally 1674 plant species (7.6% of those evaluated) are listed as Data Deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. [2]

  3. 10 de mai. de 2024 · Data Deficient (DD), a condition applied to species in which the amount of available data related to its risk of extinction is lacking in some way. Consequently, a complete assessment cannot be performed.

  4. Há 5 dias · There are 6147 plant species which are endangered or critically endangered. Additionally 1674 plant species (7.6% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status.

  5. 1 de mai. de 2024 · The IUCN maintains the IUCN Red List of Threatened Species, a comprehensive assessment of the current risk of extinction of thousands of plant and animal species. The organization also publishes or coauthors hundreds of books, reports, and other documents each year.

    • The Editors of Encyclopaedia Britannica
  6. Há 5 dias · Challenges Facing the IUCN Red List. While the Red List is a powerful tool, it faces its own set of challenges, including limited resources and the vast number of species yet to be assessed. 08. Only a fraction of the world's species have been evaluated, leaving many potentially at risk species unassessed. 09.

  7. Há 2 dias · 28% of red list species are threatened with extinction The study, which involves 250 experts in 44 countries, was released on the U.N.'s International Day for Biodiversity. It shows a third of the world's mangrove systems are threatened by climate change.