Talk:List of invasive species in Portugal

Decrees used
There are two decrees referenced in this article to justify inclusion of species. The first has a number of lists
 * list 1 - introduced species in mainland Portugal considered Invasive
 * list 2 - Non-indigenous species not considered invasive
 * list 3 - Non-indigenous species with known ecological risk (potentially invasive)

The second is, and is desgined to prevent species from becoming invasive. It has a list of species that are considered invasive in mainland Portugal. But the definition here is "alien species whose introduction into nature or propagation in a given territory threatens or has an adverse impact on biological diversity and ecosystem services associated with it, or has other adverse impacts;" also "The holding, cultivation, breeding, trade, introduction into nature and repopulation of specimens of species included in the National List of Invasive Species referred to in the following article is prohibited." The list in particular consists of "a) Exotic species for which there is scientific and technical information that allows classifying them as invasive in mainland Portugal; b) Exotic species in relation to which there is scientific and technical information that allows classifying them as invasive in the Autonomous Regions of the Azores and Madeira, considering the provisions of paragraph 3 of article 43; c) Exotic species considered ecological risk or classified as invasive in national norms or in international instruments ratified by Portugal; d) Invasive alien species that raise concern in the Union, identified in a list adopted under Regulation" It is clear that the list is actually includes potentially invasive species that have yet to become established, and thus cannot be used alone to substantiate inclusion in this list. Jameel the Saluki (talk) 05:05, 24 January 2023 (UTC)