globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12954
Scopus记录号: 2-s2.0-85044738362
论文题名:
Opposing effects of floral visitors and soil conditions on the determinants of competitive outcomes maintain species diversity in heterogeneous landscapes
作者: Lanuza J.B.; Bartomeus I.; Godoy O.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期:6
起始页码: 865
结束页码: 874
语种: 英语
英文关键词: Coexistence ; community assembly ; demography ; fitness ; multitrophic interactions ; mutualism ; niche ; pollinators ; salinity ; spatial structure
英文摘要: Theory argues that both soil conditions and aboveground trophic interactions have equivalent potential to limit or promote plant diversity. However, it remains unexplored how they jointly modify the niche differences stabilising species coexistence and the average fitness differences driving competitive dominance. We conducted a field study in Mediterranean annual grasslands to parameterise population models of six competing plant species. Spatially explicit floral visitor assemblages and soil salinity variation were characterised for each species. Both floral visitors and soil salinity modified species population dynamics via direct changes in seed production and indirect changes in competitive responses. Although the magnitude and sign of these changes were species-specific, floral visitors promoted coexistence at neighbourhood scales, while soil salinity did so over larger scales by changing the superior competitors’ identity. Our results show how below and aboveground interactions maintain diversity in heterogeneous landscapes through their opposing effects on the determinants of competitive outcomes. © 2018 John Wiley & Sons Ltd/CNRS
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107448
Appears in Collections:气候减缓与适应

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作者单位: School of Environmental and Rural Science, University of New England, Armidale, NSW, Australia; Estacion Biologica de Doñana (EBD-CSIC), C/Americo Vespucio 26, Sevilla, Spain; Instituto de Recursos Naturales y de Agrobiología de Sevilla (IRNAS-CSIC), Avda. Reina Mercedes 10, Sevilla, Spain

Recommended Citation:
Lanuza J.B.,Bartomeus I.,Godoy O.. Opposing effects of floral visitors and soil conditions on the determinants of competitive outcomes maintain species diversity in heterogeneous landscapes[J]. Ecology Letters,2018-01-01,21(6)
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