Red List
Red
List
categories
categories
The evaluation of the risk of extinction of species based on the criteria of the International Union for Conservation of Nature (International Union for Conservation of Nature – IUCN) can be done both at global and national level.
The assessment of almost 3.000 Greece’s endemic species is done, de facto, at a global level, while non-endemic species are assessed at a national level.
Greek Red List devides species into 11 categories
Extinct
Extinct (EX)
A taxon is Extinct (EX) when there is no reasonable doubt that the last individual has died. A taxon is presumed Extinct when exhaustive survets in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), thoughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon's life cycle and life form.
Extinct in the Wild
Extinct in the Wild (EW)
A taxon is Extinct In The Wild (EW) when it is known only to survive in cultivation, in captivity or as a naturalized population(or populations) well outside the past range. A taxon is presumed Extinct in the Wild when exhaustive surveys in known and/or expected habitat, at appropriate time (diurnal, seasonal, annial), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon's life cycle and life form.
Regionally Extinct
Regionally Extinct (RE)
Category for a taxon when there is no reasonable doubt that the last individual potentially capable of reproduction within the region has died or has disappeared from the wild in the region, or when, if it is a former visiting taxon, the last individual has died or disappeared in the wild from the region.
Critically Endangered
Critically Endangered (CR)
A taxon is Critically Endangeder(CR) when the best available evidence indicates that it meets any of the criteria A to E for Critically Endangered, and it is therefore considered to be facing an extremely high risk of extinction in the wild.
Endangered
Endangered (EN)
A taxon is Endangered (EN) when the best available evidence indicates that it meets any of the criteria A to E for Endangered, and it is therefore considered to be faxing a very high risk of extinction in the wild.
Vulnerable
Vulnerable (VU)
A taxon is a Vulnerable (VU) when the best available evidence indicates that it meets any of the criteria A and E for Vulnerable, and it is therefore considered to be facing a high risk of extinction in the wild.
Near Threatened
Near Threatened (NT)
A taxon in Near Threatened (NT) when it has been evaluated against the criteria but does not qualify for Critically Endangered, Endangered or Vulnerable now, but is close to qualifying for or is likely to qualify for a thretened category in the near future.
Least Concern
Least Concern (LC)
A taxon is a Least Concern(LC) when it has been evaluated against the Red List criteria and does not qualify for Critically Endangered, Vulnerable or Near Threatened.
Data Deficient
Data Deficient (DD)
A taxon is Data Deficient when. there is inadequate information to make a direct, or indirect, assessment of its risk of extinction based on its distibution and/or populaton status. A taxon in this category may be well studied, and its biology we known, but appropriate data on abundance and/ or distribution are lacking.
Not Applicable
Not Applicable (NA)
Category for a taxon deemed to be ineligible for assessment at a regional level. A taxon may be NA because it is not within its natural range in the region, or because it is a vagrant to the region.
Not Evaluated
Not Evaluated (NE)
Category for a taxon deemed to be ineligible for assessment at a regional level. A taxon may be NA because it is not within its natural range in the region, or because it is a vagrant to the region.
Extinct
Extinct (EX)
A taxon is Extinct (EX) when there is no reasonable doubt that the last individual has died. A taxon is presumed Extinct when exhaustive survets in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), thoughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon's life cycle and life form.
Extinct in the Wild
Extinct in the Wild (EW)
A taxon is Extinct In The Wild (EW) when it is known only to survive in cultivation, in captivity or as a naturalized population(or populations) well outside the past range. A taxon is presumed Extinct in the Wild when exhaustive surveys in known and/or expected habitat, at appropriate time (diurnal, seasonal, annial), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon's life cycle and life form.
Regionally Extinct
Regionally Extinct (RE)
Category for a taxon when there is no reasonable doubt that the last individual potentially capable of reproduction within the region has died or has disappeared from the wild in the region, or when, if it is a former visiting taxon, the last individual has died or disappeared in the wild from the region.
Critically Endangered
Critically Endangered (CR)
A taxon is Critically Endangeder(CR) when the best available evidence indicates that it meets any of the criteria A to E for Critically Endangered, and it is therefore considered to be facing an extremely high risk of extinction in the wild.
Endangered
Endangered (EN)
A taxon is Endangered (EN) when the best available evidence indicates that it meets any of the criteria A to E for Endangered, and it is therefore considered to be faxing a very high risk of extinction in the wild.
Vulnerable
Vulnerable (VU)
A taxon is a Vulnerable (VU) when the best available evidence indicates that it meets any of the criteria A and E for Vulnerable, and it is therefore considered to be facing a high risk of extinction in the wild.
Near Threatened
Near Threatened (NT)
A taxon in Near Threatened (NT) when it has been evaluated against the criteria but does not qualify for Critically Endangered, Endangered or Vulnerable now, but is close to qualifying for or is likely to qualify for a thretened category in the near future.
Least Concern
Least Concern (LC)
A taxon is a Least Concern(LC) when it has been evaluated against the Red List criteria and does not qualify for Critically Endangered, Vulnerable or Near Threatened.
Data Deficient
Data Deficient (DD)
A taxon is Data Deficient when. there is inadequate information to make a direct, or indirect, assessment of its risk of extinction based on its distibution and/or populaton status. A taxon in this category may be well studied, and its biology we known, but appropriate data on abundance and/ or distribution are lacking.
Not Applicable
Not Applicable (NA)
Category for a taxon deemed to be ineligible for assessment at a regional level. A taxon may be NA because it is not within its natural range in the region, or because it is a vagrant to the region.
Not Evaluated
Not Evaluated (NE)
Category for a taxon deemed to be ineligible for assessment at a regional level. A taxon may be NA because it is not within its natural range in the region, or because it is a vagrant to the region.
The categories Regionally Extinct (RE) and Not Applicable (NA) are used for national-level assessments only. A taxon is considered threatened when it falls into one of three categories: Critically Endangered (CR), Endangered (EN) or Vulnerable (VU).
Reference to database and assessments.
How to cite the database :
Natural Environment and Climate Change Agency (NECCA) (2024).
The Greek Red List of Threatened Species.
Athens, Greece. Available at redlist.necca.gov.gr, accessed
How to cite assessments:
Author(s)’ name. Species name.
The Greek Red List of Threatened Species (2024),
Available at redlist.necca.gov.gr, accessed (dd/mm/yyyy)