Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/17550874.2016.1211192 |
Soil depth shapes plant functional diversity in granite outcrops vegetation of Southwestern Australia | |
Ottaviani, Gianluigi1; Marcantonio, Matteo2,3; Mucina, Ladislav1,4 | |
通讯作者 | Ottaviani, Gianluigi |
来源期刊 | PLANT ECOLOGY & DIVERSITY
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ISSN | 1755-0874 |
EISSN | 1755-1668 |
出版年 | 2016 |
卷号 | 9期号:3页码:263-276 |
英文摘要 | Background: The arid and nutrient-poor Southwestern Australia is one of the global biodiversity hotspots. Embedded in this landscape, granite outcrops are considered terrestrial insular habitats supporting habitat heterogeneity when compared to the more homogenous surrounds. Ecology of plant species and communities on granite outcrops has been addressed in numerous studies. However, functional diversity (FD) in context of the environmental heterogeneity remained unexplored.Aims: We tested whether mesic deep-soil habitats on granite outcrops can sustain larger FD than dry shallow-soil habitats.Methods: We calculated FD for dominant species for five single traits (leaf dry matter content, foliar C-13, foliar C:N ratio, plant height and specific leaf area) and their combinations. We employed Generalized Additive Mixed Models to quantify the relationship between selected climate and soil depth variables, and FD.Results: More benign (deep-soil) habitats supported larger FD for foliar C:N, plant height and for multiple traits than did shallow-soil habitats.Conclusions: We suggest that: (1) functional diversification, likely aimed at avoiding intra- and interspecific competition for light and nutrients acquisition, might be the important factor in deep-soil habitats; (2) deep-soils patches on and around granite outcrops may serve as ecological microrefugia for biota associated with resource-rich environments. |
英文关键词 | aridity functional diversity gradient-analysis mass ratio hypothesis physiological tolerance hypothesis refugia soil depth |
类型 | Article |
语种 | 英语 |
国家 | Australia ; Italy ; Germany ; South Africa |
收录类别 | SCI-E |
WOS记录号 | WOS:000384308300003 |
WOS关键词 | SOUTH-WESTERN-AUSTRALIA ; CLIMATE-CHANGE ; COMMUNITY COMPOSITION ; BIOTIC INTERACTIONS ; ASSEMBLY PROCESSES ; TRAIT CONVERGENCE ; SPECIES RICHNESS ; BIODIVERSITY ; PATTERNS ; CONSERVATION |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | University of Western Australia |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195534 |
作者单位 | 1.Univ Western Australia, Sch Plant Biol, Crawley, Australia; 2.Fdn Edmund Mach, Dept Biodivers & Mol Ecol, GIS & Remote Sensing Unit, Res & Innovat Ctr, Michele Alladige, Italy; 3.Tech Univ Berlin, Geoinformat Environm Planning Lab, Berlin, Germany; 4.Univ Stellenbosch, Dept Geog & Environm Studies, Matieland, South Africa |
推荐引用方式 GB/T 7714 | Ottaviani, Gianluigi,Marcantonio, Matteo,Mucina, Ladislav. Soil depth shapes plant functional diversity in granite outcrops vegetation of Southwestern Australia[J]. University of Western Australia,2016,9(3):263-276. |
APA | Ottaviani, Gianluigi,Marcantonio, Matteo,&Mucina, Ladislav.(2016).Soil depth shapes plant functional diversity in granite outcrops vegetation of Southwestern Australia.PLANT ECOLOGY & DIVERSITY,9(3),263-276. |
MLA | Ottaviani, Gianluigi,et al."Soil depth shapes plant functional diversity in granite outcrops vegetation of Southwestern Australia".PLANT ECOLOGY & DIVERSITY 9.3(2016):263-276. |
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