干旱区生态环境知识资源中心(Arid): Growth dynamics of endemic Dracaena cinnabari Balf. f. of Socotra Island suggest essential elements for a conservation strategy

Arid

DOI	10.2478/s11756-018-0152-0
	Growth dynamics of endemic Dracaena cinnabari Balf. f. of Socotra Island suggest essential elements for a conservation strategy
	Madera, Petr 1; Habrova, Hana 1; Senfeldr, Martin 1; Kholova, Irena 1; Lvoncik, Samuel 1; Ehrenbergerova, Lenka 1; Roth, Matej 1; Nadezhdina, Nadezhda 1; Nemec, Petr 1; Rosenthal, Jonathan 2; Pavlis, Jindrich 1
通讯作者	Madera, Petr
会议名称	27th Congress of the IAVS-Working-Group of the European-Vegetation-Survey
会议日期	MAY 23-26, 2018
会议地点	Wroclaw, POLAND
英文摘要	Dragon's blood tree, a flagship endemic species of Socotra, is threatened with extinction due to lack of natural regeneration, likely because of goat herbivory and/or climatic factors. Loss of dragon's blood tree would result in loss of other native flora, heightening the importance of formulating a conservation strategy for it. Although artificial afforestation might be used to offset the lack of natural regeneration, it would have to overcome the same threats faced by naturally occurring seedlings. Moreover, there is no published information on the growth dynamics of seedlings in plantations in situ on Socotra. To fill this information gap, we compared seedling growth (total plant height, leaves number, stem height, stem diameter) over an 8-year period after planting at three sites that differed in the degree to which goats were excluded and in whether they were watered regularly over the period. In addition to developing a new classification of the growth stages, which will enable better tracking of population dynamics, we found that continuous goat exclusion was necessary to prevent seedling mortality. Also, although seedling growth overall was slow, growth parameters of regularly irrigated seedlings ranged from 156% to 446% of those not regularly watered, suggesting that this treatment can speed seedlings' escape from goat browsing. For the dragon's blood tree and likely for other taxa within this group, extremely slow growth and long generation times suggest that conservation and restoration efforts will require a commitment to active management that will last decades, rather than a short-term approach.
英文关键词	Afforestation Browsing dragon's blood tree Regeneration Semi-arid tropical zone Soqotra
来源出版物	BIOLOGIA
ISSN	0006-3088
EISSN	1336-9563
出版年	2019
卷号	74
期号	4
页码	339-349
出版者	SPRINGER
类型	Article; Proceedings Paper
语种	英语
国家	Czech Republic;USA
收录类别	CPCI-S
WOS记录号	WOS:000463168000002
WOS关键词	DRAGON TREE ; SAP FLOW ; DRACO ; ASPARAGACEAE ; POPULATIONS ; VEGETATION ; AGE
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/308207
作者单位	1.Mendel Univ Brno, Dept Forest Bot Dendrol & Geobiocoenol, Fac Forestry & Wood Technol, Zemedelska 1, Brno 61300, Czech Republic; 2.Inst Ecol Res, Kingston, NY USA
推荐引用方式 GB/T 7714	Madera, Petr,Habrova, Hana,Senfeldr, Martin,et al. Growth dynamics of endemic Dracaena cinnabari Balf. f. of Socotra Island suggest essential elements for a conservation strategy[C]:SPRINGER,2019:339-349.