干旱区生态环境知识资源中心(Arid): Distribution, reproductive potential and conservation assessment of the rare and endemic Dionysia mira in the Hajar Mountains, Sultanate of Oman

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DOI	10.1111/njb.03192
	Distribution, reproductive potential and conservation assessment of the rare and endemic Dionysia mira in the Hajar Mountains, Sultanate of Oman
	Lupton, Darach A.; Patzelt, Annette; Anderson, Andrew; Harder, Henning; Zacharias, Dietmar
通讯作者	Lupton, DA (corresponding author), Oman Bot Garden, Dept Bot & Conservat, Muscat, Oman.
来源期刊	NORDIC JOURNAL OF BOTANY
ISSN	0107-055X
EISSN	1756-1051
出版年	2022
英文摘要	Dionysia mira (Jaub. & Spach.) Wendelbo is endemic to the northern mountains of Oman, where it is restricted to a few isolated populations in the eastern and western Hajar Mountains; the extent of populations has not been accurately documented. Here we investigate the population size and distribution, habitat preferences, reproductive biology and potential threats, and ex-situ conservation initiatives at Oman Botanic Garden are discussed. In 2017, 4045 flowering plants were recorded; of which 3595 were concentrated around the village of Shnoot on Jabal Al Akhdar in the western Hajar mountains. Plants are found between 1700 m and 2500 m a.s.l. on north facing limestone gravel slopes and fissures on vertical outcrops and cliff faces within Sideroxylon mascatense - Olea europaea and Teucrium mascatense - Juniperus seravschanica vegetation communities. Plant density within the core population at Shnoot is 52 plants/100 m(2); 46% of which were mature plants, 32% semi-mature and 15% seedlings. The mean number of seeds per plant was 14 000; bee-flies (Bombyliidae) are suggested as likely pollinators. Using freshly collected seeds under controlled conditions between 10 degrees C and 30 degrees C a 90% germination rate was recorded; there was no difference in the germination rates between stratified and non-stratified seeds. Dionysia mira is under threat from predicted climate change scenarios in the region and habitat loss through widespread development within its core range. Long-term ex-situ conservation programme at Oman Botanic Garden maintains a seed and living plant collection.
英文关键词	conservation Dionysia endemic generative reproduction Oman threats
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000725076100001
WOS关键词	SEED-GERMINATION ; EVOLUTIONARY RESPONSES ; PLANT-COMMUNITIES ; DESERT PLANTS ; VEGETATION ; RECRUITMENT ; ECOLOGY ; ESTABLISHMENT ; EXTINCTION ; TAJIKISTAN
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374680
作者单位	[Lupton, Darach A.; Patzelt, Annette; Anderson, Andrew] Oman Bot Garden, Dept Bot & Conservat, Muscat, Oman; [Harder, Henning; Zacharias, Dietmar] City Univ Appl Sci, Fac Nat & Technol 5, Bremen, Germany
推荐引用方式 GB/T 7714	Lupton, Darach A.,Patzelt, Annette,Anderson, Andrew,et al. Distribution, reproductive potential and conservation assessment of the rare and endemic Dionysia mira in the Hajar Mountains, Sultanate of Oman[J],2022.
APA	Lupton, Darach A.,Patzelt, Annette,Anderson, Andrew,Harder, Henning,&Zacharias, Dietmar.(2022).Distribution, reproductive potential and conservation assessment of the rare and endemic Dionysia mira in the Hajar Mountains, Sultanate of Oman.NORDIC JOURNAL OF BOTANY.
MLA	Lupton, Darach A.,et al."Distribution, reproductive potential and conservation assessment of the rare and endemic Dionysia mira in the Hajar Mountains, Sultanate of Oman".NORDIC JOURNAL OF BOTANY (2022).