干旱区生态环境知识资源中心(Arid): Marine influence controls plant phenological dynamics in Mediterranean Mexico

Arid

	Marine influence controls plant phenological dynamics in Mediterranean Mexico
	Vanderplank Sula E; Ezcurra Exequiel
来源期刊	Journal of Plant Ecology
ISSN	1752-9921
出版年	2016
卷号	9 期号:4 页码:410-420
英文摘要	Aims To assess the role of moisture in phenological timing in the mediterranean coastal flora of Baja California, and specifically to assess the role of coastal fog and ocean-derived moisture in plant phenology. Moisture seems to be the primary driver of flowering times and durations at the arid end of the mediterranean-climate region, where rainfall is often sporadic (temperature and day length can be expected to play a much lesser role as they are not growth limiting). We aimed to understand: What factors drive climatic variation between sites? Are there general flowering patterns allowing us to identify phenological categories? Do flowering patterns vary in relation to site-specific weather? and most importantly, does maritime influence on weather affect flowering dynamics in coastal mediterranean ecosystems? Methods The southernmost extent of the California Floristic Province (in Baja California, Mexico) is a biological diversity hotspot of high end-emism and conservation value, with two steep moisture gradients: rainfall (N-S) and coastal fogs (W-E), providing an ideal study system. We installed five weather stations across the moisture gradients, recording data hourly. We monitored flowering phenology in the square kilometer surrounding each weather station from 2010 to 2013. About 86 plant taxa were monitored across the five sites, every 6-8 weeks. Averaged climatic data is presented with general trends in flowering, and specific flowering syndromes were observed. Data for flowering intensity across the sites was analyzed using a principal components analysis. Important Findings Data analysis demonstrates a general seasonal pattern in flowering times, but distinct differences in local weather and phenology between the five study sites. Three flowering syndromes are revealed in the flora: (i) water responders or spring bloomers, (ii) day-length responders or fall-blooming taxa and (iii) aseasonal bloomers with no seasonal affinity. The two moisture gradients are the strongest drivers of flowering times. Inland sites showed higher phenological variation than coastal sites where seasonality is dampened by ocean-derived moisture, which extends and buffers perennial plant phenology and is a probable driver of local endemism. Phenological controls vary globally with climate and geography; moisture is the primary driver of phenology in mediterranean climates and fog is an important climatic variable in coastal Mexico.
英文关键词	flowering times Baja California maritime succulent scrub moisture gradient
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5784210
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335700
作者单位	Vanderplank Sula E, Botanical Research Institute of Texas, 1700 University Drive, Fort Worth, 76107, USA.; Ezcurra Exequiel, Department of Botany and Plant Sciences, University of California, 900 University Ave, Riverside, 92521, USA.
推荐引用方式 GB/T 7714	Vanderplank Sula E,Ezcurra Exequiel. Marine influence controls plant phenological dynamics in Mediterranean Mexico[J],2016,9(4):410-420.
APA	Vanderplank Sula E,&Ezcurra Exequiel.(2016).Marine influence controls plant phenological dynamics in Mediterranean Mexico.Journal of Plant Ecology,9(4),410-420.
MLA	Vanderplank Sula E,et al."Marine influence controls plant phenological dynamics in Mediterranean Mexico".Journal of Plant Ecology 9.4(2016):410-420.