干旱区生态环境知识资源中心(Arid): Using drone imagery analysis in rare plant demographic studies

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DOI	10.1016/j.jnc.2021.126020
	Using drone imagery analysis in rare plant demographic studies
	Rominger, Kody R.; DeNittis, Alyson; Meyer, Susan E.
通讯作者	Meyer, SE (corresponding author), US Forest Serv, USDA, Rocky Mt Res Stn, Shrub Sci Lab, 735 North 500 East, Provo, UT 84606 USA.
来源期刊	JOURNAL FOR NATURE CONSERVATION
ISSN	1617-1381
EISSN	1618-1093
出版年	2021
卷号	62
英文摘要	For plant species of conservation concern, knowledge of changes in abundance through time is a minimum requirement for informed management. This information is usually acquired through on-the-ground monitoring, which entails counting individuals in defined areas over multiple years. Demographic studies, which involve tracking individual plants through time, are usually carried out at limited spatial scales and over shorter time frames than monitoring, but are more useful to management. In this study we explored the use of drone (UAV or unmanned aerial vehicle) imagery analysis as a tool for collecting demographic data for dwarf bear poppy (Arctomecon humilis), an endangered species restricted to gypsum outcrops in the northeastern Mojave Desert, USA. We obtained imagery at 15 m altitude during peak flowering at four populations in spring 2019. Each poppy plant in the imagery was georeferenced, measured and scored for flowering. To estimate reproductive output, we developed independent data sets relating plant diameter to flower number, then sampled to determine mean fruit set per flower and seeds per fruit. We used these relationships along with plant diameter and reproductive status for each plant in the drone imagery to estimate seed rain on an area basis across nine 0.6 ha demography plots at each population. This method enabled us to collect demographic data on >3,000 plants, including estimated production of ca. 3.7 million seeds, across >20 ha of habitat. We also analyzed imagery acquired in both 2018 and 2019 at two of the four populations and quantified recruitment, growth, and mortality of individual georeferenced plants. Our study is among the first to demonstrate the utility of drone imagery analysis in plant demographic studies. The method is most applicable for non-clonal perennial species with distinctive morphology that occur in habitats with low vegetative cover.
英文关键词	Arctomecon humiliss Dwarf bear poppy Population monitoring Rare plant conservation Unmanned aerial vehicle (UAV)
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000679274100011
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363701
作者单位	[Rominger, Kody R.; DeNittis, Alyson] Utah Valley Univ, Dept Biol, 800 West Univ Pkwy, Orem, UT 84058 USA; [Meyer, Susan E.] US Forest Serv, USDA, Rocky Mt Res Stn, Shrub Sci Lab, 735 North 500 East, Provo, UT 84606 USA
推荐引用方式 GB/T 7714	Rominger, Kody R.,DeNittis, Alyson,Meyer, Susan E.. Using drone imagery analysis in rare plant demographic studies[J],2021,62.
APA	Rominger, Kody R.,DeNittis, Alyson,&Meyer, Susan E..(2021).Using drone imagery analysis in rare plant demographic studies.JOURNAL FOR NATURE CONSERVATION,62.
MLA	Rominger, Kody R.,et al."Using drone imagery analysis in rare plant demographic studies".JOURNAL FOR NATURE CONSERVATION 62(2021).