Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1371/journal.pone.0202073 |
Floristic and structural assessment of Australian rangeland vegetation with standardized plot-based surveys | |
Baruch, Zdravko1,2; Caddy-Retalic, Stefan2,3; Guerin, Greg R.1,2; Sparrow, Ben1,2; Leitch, Emrys1,2; Tokmakoff, Andrew1,2; Lowe, Andrew J.2 | |
通讯作者 | Baruch, Zdravko |
来源期刊 | PLOS ONE
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ISSN | 1932-6203 |
出版年 | 2018 |
卷号 | 13期号:9 |
英文摘要 | We describe and correlate environmental, floristic and structural vegetation traits of a large portion of Australian rangelands. We analysed 351 one hectare vegetation plots surveyed by Australia’s Terrestrial Ecosystem Research Network (TERN) using the AusPlots Rangelands standardized method. The AusPlots Rangelands method involves surveying 1010 one meter-spaced point-intercepts (IPs) per plot. At each IP, species were scored, categorised by growth-form, converted to percentage cover as the input for the plot(x) species matrix. Vegetation structure is depicted by growth-form configuration and relative importance. The floristic and structural distance matrices were correlated with the Mantel test. Canonical correspondence analysis (CCA) related floristic composition to environmental variables sourced from WorldClim, the Atlas of Living Australia and TERN’s Soil and Landscape Grid. Differences between clusters were tested with ANOVA while principal component analysis (PCA) ordered the plots within the environmental space. Our plot(x) species matrix required segmentation due to sparsity and high beta-diversity. Based on the ordination of plots latitude within environmental space, the matrix was segmented into three "superclusters" : the winter rain and temperate Mediterranean, the monsoonal rain savannas and the arid deserts. Further classification, with the UPGMA linkage method, generated two, four and five clusters, respectively. All groupings are described by species richness, diversity indices and growth form conformation. Several floristic disjunctions were apparent and their possible causes are discussed. For all superclusters, the correspondence between the floristic and the structural or growth form matrices was statistically significant. CCA ordination clearly demarcated all groupings. Aridity, rainfall, temperature, seasonality, soil nitrogen and pH are significant correlates to the ordination of superclusters and clusters. At present, our results are influenced by incomplete sampling. As more sites are surveyed, this pioneer analysis will be updated and refined providing tools for the effective management of Australian rangelands. |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000444093600016 |
WOS关键词 | GRASS CENCHRUS-CILIARIS ; NORTHERN-TERRITORY ; TROPICAL SAVANNAS ; MONSOON TROPICS ; FIRE ; BIODIVERSITY ; ECOSYSTEM ; IMPACTS ; CLASSIFICATION ; CONSERVATION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/212298 |
作者单位 | 1.Univ Adelaide Node, Terr Ecosyst Res Network, North Terrace, Adelaide, SA, Australia; 2.Univ Adelaide, Sch Biol Sci, North Terrace, Adelaide, SA, Australia; 3.Univ Sydney, Sch Life & Environm Sci, Sydney, NSW, Australia |
推荐引用方式 GB/T 7714 | Baruch, Zdravko,Caddy-Retalic, Stefan,Guerin, Greg R.,et al. Floristic and structural assessment of Australian rangeland vegetation with standardized plot-based surveys[J],2018,13(9). |
APA | Baruch, Zdravko.,Caddy-Retalic, Stefan.,Guerin, Greg R..,Sparrow, Ben.,Leitch, Emrys.,...&Lowe, Andrew J..(2018).Floristic and structural assessment of Australian rangeland vegetation with standardized plot-based surveys.PLOS ONE,13(9). |
MLA | Baruch, Zdravko,et al."Floristic and structural assessment of Australian rangeland vegetation with standardized plot-based surveys".PLOS ONE 13.9(2018). |
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