Arid
DOI10.1080/17550874.2016.1211192
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
ISSN1755-0874
EISSN1755-1668
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
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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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