Local dominance of exotic plants declines with residence time: a role for plant-soil feedback?
| Autor: | Wim H. van der Putten, Tanja A.A. Speek, Jeltje M. Stam, Wim A. Ozinga, Joop H.J. Schaminée, L.A.P. Lotz |
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| Přispěvatelé: | Terrestrial Ecology (TE) |
| Rok vydání: | 2014 |
| Předmět: |
0106 biological sciences
local dominance Bos- en Landschapsecologie Exotic species Local dominance Introduced species Plant Ecology and Nature Conservation Plant Science Biology 010603 evolutionary biology 01 natural sciences SPECIAL ISSUE: The Role of Below-Ground Processes in Mediating Plant Invasions soil-borne enemy Dominance (ecology) Forest and Landscape Ecology Laboratory of Entomology Applied Ecology Laboratorium voor Nematologie Vegetatie Research Articles residence time Plant–soil feedback Exotic plant Vegetation Ecology Soil pathogen Residence time fungi national Toegepaste Ecologie food and beverages macro ecology 15. Life on land Macro ecology PE&RC Laboratorium voor Entomologie Soil-borne enemy introduced species Plant species Plantenecologie en Natuurbeheer Vegetatie Bos- en Landschapsecologie Vegetation Forest and Landscape Ecology Laboratory of Nematology 010606 plant biology & botany |
| Zdroj: | AoB Plants AoB Plants, 7 AoB PLANTS, 7:plv021. Oxford University Press AoB Plants 7 (2015) |
| ISSN: | 2041-2851 |
| Popis: | Exotic plant species have shown boom-bust patterns, first becoming invasive, but then over a longer time period declining in dominance. Exotic plant species may escape from their native enemies, but might become increasingly exposed to enemies in the new range as time since introduction increases. We investigated whether soil interactions could explain a pattern in the Netherlands where exotic plant species with a longer residence time are less dominant, by performing a plant soil feedback experiment. We found no evidence that plant-soil interactions explain this pattern. Recent studies have shown that introduced exotic plant species may be released from their native soil-borne pathogens, but that they become exposed to increased soil pathogen activity in the new range when time since introduction increases. Other studies have shown that introduced exotic plant species become less dominant when time since introduction increases, and that plant abundance may be controlled by soil-borne pathogens; however, no study yet has tested whether these soil effects might explain the decline in dominance of exotic plant species following their initial invasiveness. Here we determine plant–soil feedback of 20 plant species that have been introduced into The Netherlands. We tested the hypotheses that (i) exotic plant species with a longer residence time have a more negative soil feedback and (ii) greater local dominance of the introduced exotic plant species correlates with less negative, or more positive, plant–soil feedback. Although the local dominance of exotic plant species decreased with time since introduction, there was no relationship of local dominance with plant–soil feedback. Plant–soil feedback also did not become more negative with increasing time since introduction. We discuss why our results may deviate from some earlier published studies and why plant–soil feedback may not in all cases, or not in all comparisons, explain patterns of local dominance of introduced exotic plant species. |
| Databáze: | OpenAIRE |
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