Species conservation profile and amended distribution of Cousinia knorringiae (Asteraceae), a narrow endemic of the Western Tian-Shan

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Usmonov , M , Tojibaev , K , Jang , C-G & Sennikov , A N 2021 , ' Species conservation profile and amended distribution of Cousinia knorringiae (Asteraceae), a narrow endemic of the Western Tian-Shan ' , Biodiversity Data Journal , vol. 9 , 64115 . https://doi.org/10.3897/BDJ.9.e64115

Title: Species conservation profile and amended distribution of Cousinia knorringiae (Asteraceae), a narrow endemic of the Western Tian-Shan
Author: Usmonov, Mansur; Tojibaev, Komiljon; Jang, Chang-Gee; Sennikov, Alexander N.
Other contributor: University of Helsinki, Botany
Date: 2021-04-27
Language: eng
Number of pages: 16
Belongs to series: Biodiversity Data Journal
ISSN: 1314-2836
DOI: https://doi.org/10.3897/BDJ.9.e64115
URI: http://hdl.handle.net/10138/330323
Abstract: Background Cousinia knorringiae Bornm. (Asteraceae) belongs to C. sect. Subappendiculatae Tscherneva, a group of the species-rich and taxonomically difficult genus Cousinia Cass. This species is narrowly distributed in the Western Tian-Shan and has been known as endemic to Kyrgyzstan. It inhabits bare rocks and screes at elevations of 1200-1500 m above sea level. This species is of conservation interest because of its small population size and limited distribution. New information Cousinia knorringiae is reported for the first time from eastern Uzbekistan on the basis of specimens collected on Ungur-Tepa Mt., a south-western outlier of the Bozbu-Too Mts. (Western Tian-Shan). The conservation status of the species is assessed as Endangered (EN), based on criterion D (estimated population size 200-250 mature individuals), according to the IUCN Red List Categories and Criteria (version 3.1). A new distribution map and a line drawing for C. knorringiae are provided and its type locality is clarified. The new knowledge suggests that the species is endemic to the East Fergana botanical hotspot, which includes a transborder territory shared between Kyrgyzstan and Uzbekistan and should, therefore, be subjected to international conservation measures. The southern extension of Ungur-Tepa Mt. harbours important plant species, which cannot be found elsewhere in Uzbekistan and may, therefore, be proposed for legal protection.
Subject: Central Asia
Compositae
conservation
East Fergana botanical hotspot
IUCN assessment
Kyrgyzstan
narrow endemic
new record
Uzbekistan
VASCULAR PLANTS
RECORDS
FLORA
1181 Ecology, evolutionary biology
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