干旱区生态环境知识资源中心(Arid): Patterns and drivers of plant diversity across Australia

Arid

DOI	10.1111/ecog.06426
	Patterns and drivers of plant diversity across Australia
	Mokany, Karel; McCarthy, James K.; Falster, Daniel S.; Gallagher, Rachael, V; Harwood, Thomas D.; Kooyman, Robert; Westoby, Mark
通讯作者	Mokany, K
来源期刊	ECOGRAPHY
ISSN	0906-7590
EISSN	1600-0587
出版年	2022
卷号	2022 期号:11
英文摘要	Biodiversity analyses across continental extents are important in providing comprehensive information on patterns and likely drivers of diversity. For vascular plants in Australia, community-level diversity analyses have been restricted by the lack of a consistent plot-based survey dataset across the continent. To overcome these challenges, we collated and harmonised plot-based vegetation survey data from the major data sources across Australia and used them as the basis for modelling species richness (alpha-diversity) and community compositional dissimilarity (beta-diversity), standardised to 400 m(2), with the aim of mapping diversity patterns and identifying potential environmental drivers. The harmonised Australian vegetation plot (HAVPlot) dataset includes 219 552 plots, of which we used 115 083 to analyse plant diversity. Models of species richness and compositional dissimilarity both explained approximately one-third of the variation in plant diversity across Australia (D-2 = 33.0% and 32.7%, respectively). The strongest environmental predictors for both aspects of diversity were a combination of temperature and precipitation, with soil texture and topographic heterogeneity also important. The fine-resolution (approximate to 90 m) spatial predictions of species richness and compositional dissimilarity identify areas expected to be of particular importance for plant diversity, including south-western Australia, rainforests of eastern Australia and the Australian Alps. Arid areas of central and western Australia are predicted to support assemblages that are less speciose or unique; however, these areas are most in need of additional survey data to fill the spatial, environmental and taxonomic gaps in the HAVPlot dataset. The harmonised data and model predictions presented here provide new insight into plant diversity patterns across Australia, enabling a wide variety of future research, such as exploring changes in species abundances, linking compositional patterns to functional traits or undertaking conservation assessments for selected components of the flora.
英文关键词	alpha-diversity beta-diversity biodiversity community composition dissimilarity plot richness species survey uniqueness vegetation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000863604800001
WOS关键词	SPECIES-RICHNESS ; BETA-DIVERSITY ; ENVIRONMENTAL HETEROGENEITY ; CLIMATE-CHANGE ; VEGETATION ; CONSERVATION ; EVOLUTIONARY ; IMPACTS ; FUTURE ; SCALE
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/2XILL650/392284
推荐引用方式 GB/T 7714	Mokany, Karel,McCarthy, James K.,Falster, Daniel S.,et al. Patterns and drivers of plant diversity across Australia[J],2022,2022(11).
APA	Mokany, Karel.,McCarthy, James K..,Falster, Daniel S..,Gallagher, Rachael, V.,Harwood, Thomas D..,...&Westoby, Mark.(2022).Patterns and drivers of plant diversity across Australia.ECOGRAPHY,2022(11).
MLA	Mokany, Karel,et al."Patterns and drivers of plant diversity across Australia".ECOGRAPHY 2022.11(2022).