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European Red List of Vascular Plants - European Commission

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level, and species complexes have been split into multiple<br />

species. Therefore, the taxonomy used in the <strong>European</strong><br />

<strong>Red</strong> <strong>List</strong> <strong>of</strong> <strong>Vascular</strong> <strong>Plants</strong> is not concurrent with all the<br />

recent developments and in some cases reflects the available<br />

taxonomic knowledge at the time <strong>of</strong> assessment.<br />

The situation is made even more complicated by the<br />

molecular work that has been conducted on flowering<br />

plants by a team <strong>of</strong> researchers across the world (known<br />

as the Angiosperm Phylogeny Group – APG) in recent<br />

years. Based on the findings from both molecular and<br />

morphological studies the APG team have been developing<br />

a new and completely revised phylogeny <strong>of</strong> the world’s<br />

plants. The latest version <strong>of</strong> this phylogenetic arrangement,<br />

known as APG3, has gained widespread acceptance across<br />

the botanical community with many herbaria rearranging<br />

their collections to match this new treatment. The new<br />

treatment has resulted in the complete reordering <strong>of</strong> plant<br />

Orders and Families, new Families have been created, some<br />

have been lumped and genera have been moved between<br />

them and in some cases even split between families.<br />

The IUCN <strong>Red</strong> <strong>List</strong> has up until now been using the<br />

more traditional approach followed at RBG Kew which<br />

involved a mixture <strong>of</strong> Cronquist’s Orders and Brummitt’s<br />

treatment <strong>of</strong> Families and Genera. This has been mainly<br />

followed in this project but not exclusively. However, now<br />

that the APG approach has reached a fairly stable point<br />

and is widely accepted and used, it is envisaged that this<br />

approach will be followed by the IUCN <strong>Red</strong> <strong>List</strong>. When<br />

this happens, it will have consequences for the <strong>European</strong><br />

<strong>Red</strong> <strong>List</strong> <strong>of</strong> <strong>Vascular</strong> <strong>Plants</strong> as the numbers <strong>of</strong> species<br />

previously recorded in various Genera, Families and Orders<br />

will change considerably as the changes are implemented.<br />

Distinct subspecies were only assessed as part <strong>of</strong> this<br />

project when they were listed in the EC Habitats Directive<br />

or the Bern Convention, or in cases where a species is only<br />

represented in its wild form at subspecies level. However,<br />

due to the taxonomic developments described above, a<br />

few species selected in 2008 have since been reclassified as<br />

subspecies and are therefore included in this <strong>Red</strong> <strong>List</strong>. Other<br />

species from the original selection were discarded during<br />

the assessment process as they were not taxonomically<br />

valid anymore. More notes on the taxonomy followed for<br />

the specific groups can be found in chapters 3, 4 and 5.<br />

■■<br />

■■<br />

■■<br />

■■<br />

■■<br />

■■<br />

■■<br />

■■<br />

■■<br />

Geographic range (including a distribution map)<br />

<strong>Red</strong> <strong>List</strong> Category and Criteria<br />

Population information<br />

Habitat preferences<br />

Use and trade information<br />

Major threats<br />

Conservation measures<br />

Other general information<br />

Key literature references<br />

2.5 Review workshop and evaluation <strong>of</strong><br />

assessments<br />

Two workshops involving around 25 national and taxon<br />

experts each were organised on 12-16 April 2010 in<br />

Cascais/Portugal for crop wild relatives and 21-24 June<br />

2010 in Brest/France for the policy and a selection<br />

<strong>of</strong> the aquatic plant species. During the workshops,<br />

focussed working groups were organised to discuss the<br />

preliminary assessments and to add new information to<br />

the species summaries and maps. <strong>Red</strong> <strong>List</strong> Categories<br />

were then defined for each species at the <strong>European</strong> and<br />

EU 27 levels.<br />

Following the review workshop, the data were edited,<br />

and outstanding questions were resolved through<br />

communications with the experts. Consistency in the<br />

use <strong>of</strong> IUCN Criteria was checked by IUCN staff from<br />

the IUCN <strong>Red</strong> <strong>List</strong> Unit. The resulting finalised IUCN<br />

<strong>Red</strong> <strong>List</strong> assessments are a product <strong>of</strong> scientific consensus<br />

concerning species status and are backed by relevant<br />

literature and data sources.<br />

Chaenorhinum serpyllifolium ssp. lusitanicum is endemic to the southwestern coast <strong>of</strong><br />

Portugal, occupying an area smaller than 300 km². The subpopulations are isolated<br />

and this fragmentation will increase due to the high pressure from urban and tourism<br />

development at the coast. It is therefore listed as Endangered. Photograph © Pedro<br />

Arsénio.<br />

2.4 Assessment protocol<br />

For the selected plant species that are part <strong>of</strong> this study,<br />

the following data were entered into the database (IUCN<br />

Species Information Service – SIS):<br />

■■ Species’ taxonomic classification<br />

6

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