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Ecology Center Publications

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Field experiment

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Full-Text Articles in Life Sciences

Plant–Soil Feedback Effects Altered By Aboveground Herbivory Explain Plant Species Abundance In The Landscape, Johannes Heinze, Alexander Wacker, Andrew Kulmatiski Feb 2020

Plant–Soil Feedback Effects Altered By Aboveground Herbivory Explain Plant Species Abundance In The Landscape, Johannes Heinze, Alexander Wacker, Andrew Kulmatiski

Ecology Center Publications

Relatively little is known about how plant–soil feedbacks (PSFs) may affect plant growth in field conditions where factors such as herbivory may be important. Using a potted experiment in a grassland, we measured PSFs with and without aboveground insect herbivory for 20 plant species. We then compared PSF values to plant landscape abundance. Aboveground herbivory had a large negative effect on PSF values. For 15 of 20 species, PSFs were more negative with herbivory than without. This occurred because plant biomass on “home” soils was smaller with herbivory than without. PSF values with herbivory were correlated with plant landscape abundance, …


Plant-Soil Feedbacks Predict Native But Not Non-Native Plant Community Composition: A 7-Year Common-Garden Experiment, Andrew Kulmatiski Aug 2019

Plant-Soil Feedbacks Predict Native But Not Non-Native Plant Community Composition: A 7-Year Common-Garden Experiment, Andrew Kulmatiski

Ecology Center Publications

Plant-soil feedbacks (PSFs) have gained attention as a potential mechanism of plant growth and coexistence, however, because they are typically measured using plant monocultures in greenhouse conditions, the link between PSFs and plant growth in field communities remains poorly tested. Here, PSFs for six native and four non-native species were measured in a 7-year, common-garden experiment. A plant community growth model was then parameterized either with PSF data (PSF model) or without PSF data (Null model). PSF and Null model predictions were compared to plant ground cover in experimental and natural communities. For eight of 10 species, plant cover at …


Greenhouse- And Field-Measured Plant-Soil Feedbacks Are Not Correlated, Leslie Forero, Josephine Grenzer, Johannes Heinze, Conrad Schittko, Andrew Kulmatiski Jan 2019

Greenhouse- And Field-Measured Plant-Soil Feedbacks Are Not Correlated, Leslie Forero, Josephine Grenzer, Johannes Heinze, Conrad Schittko, Andrew Kulmatiski

Ecology Center Publications

Plant-soil feedbacks (PSFs) have become a commonly invoked mechanism of plant coexistence and abundance. Yet, most PSF experiments have been performed in greenhouse conditions. To test whether or not greenhouse-measured PSF values are of similar magnitude and positively correlated with field-measured PSFs, we compared PSF values from five different studies that measured PSF values in both greenhouse and field conditions. For 36 plant species, greenhouse-measured PSF values were larger than and not positively correlated with field-measured PSF values. Similarly, these 36 species produced 269 soil-specific PSF values, and for each site there was no positive correlation between these greenhouse- and …