Noticias del proyecto South African Red List: Plants - Extinct and Extinct in the Wild

02 de diciembre de 2019

Current Status

The current status of plant species listed as extinct in the wild can be found here:
https://www.inaturalist.org/projects/extinct-in-the-wild/journal/14609-extinct-plant-species-in-south-africa

This list is current. The following Extinct species are no longer Extinct because survivors have been found. These fall into two categories:
* Species lost and presumed extinct - usually because of lack of data and their never having been seen for more than 50 years, in some cases hundreds of years. Their rediscovery could quite well result in them being declared Least Concern, if their locality was remote but unthreatened. However, a some species are not hidden in locality, but in time: they only flower for a month or two in the year or two following a fire, and as a consequence their presence may easily be missed. Until their behaviour is understood, and people search in the right places at the right season in the right age after a fire: when they might well be found to be quite common.
*The living dead. These are species whose rediscovery is of an isolated and small remnant of a once larger habitat, now all transformed. These species no longer have a viable home that can sustain a minimum viable population, and their future is entirely dependent on some restoration project to create some habitat for their future survival.

The following species are no longer considered extinct (EW: extinct in wild, but in cultivation):

Extinct
Psoralea cataracta Waterfall Fountainbush (1790s) - found Oct 2019
Polhillia ignota Whocares Syrupbush (1900s) - found Nov 2016
Helichrysum outeniquense Joubertinia Everlasting (1947) - found 2016
Mimetes stokoei Mace Pagoda (1950)- re-emerged after hot fire 2000
Aspalathus cordicarpa (1950s) - found March 2016 (only confirmed 2019)
Pleiospilos simulans (2007) - found 2016 by Outramps (EW)

Presumed Extinct:
Polycarena silenoides Cape Granite Flax (1940s) - rediscovered August 2015
Aspalathus amoena Bree Capegorse (1970s) - rediscovered May 2013

Taxonomically revised, and therefore now considered just a population of another species.
Drosanthemum insolitum (CR PE) - is now sunk into Drosanthemum boerhavii
Haworthia venosa subsp. woolleyi (CR PE) - is now sunk into Haworthiopsis woolleyi

Anotado en diciembre 02, lunes 12:25 por tonyrebelo tonyrebelo | 1 comentarios | Deja un comentario

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