Data associated with "Vegetative growth drives the negative effects of an invasive species on resident community diversity and is not limited by plant-soil feedbacks: a temporal assessment"

Holden, Emily M.; Salimbayeva, Karina; Brown, Charlotte; Stotz, Gisela C.; Cahill, James F.

doi:https://doi.org/10.7939/r3-carh-jh51

Data associated with "Vegetative growth drives the negative effects of an invasive species on resident community diversity and is not limited by plant-soil feedbacks: a temporal assessment"

dc.contributor.author	Holden, Emily M.
dc.contributor.author	Salimbayeva, Karina
dc.contributor.author	Brown, Charlotte
dc.contributor.author	Stotz, Gisela C.
dc.contributor.author	Cahill, James F.
dc.date.accessioned	2025-05-01T20:46:54Z
dc.date.available	2025-05-01T20:46:54Z
dc.date.issued	2024-05-17
dc.description	1. Many pathways of invasion have been posited, but ecologists lack an experimental framework to identify which mechanisms are dominant in a given invasion scenario. Plant-soil feedbacks (PSFs) are one such mechanism that tend to initially facilitate, but over time attenuate, invasive species’ impacts on plant diversity and ecosystem function. PSFs are typically measured under greenhouse conditions and are often assumed to have significant effects under field conditions that change over time. However, direct tests of PSFs effects in natural settings and their change over time are rare. 2. Here we compare the role of PSFs to the effects of biomass in limiting the dominance of an invasive species and impacts on resident species diversity. We characterized the effects of the invader Bromus inermis (Leyss.) on native plant communities over time and measured changes its PSFs and vegetative growth to understand their integrated effects on community diversity. To do so, we combined data from a six-year field study documenting the rate and impacts of invasion with a short-term greenhouse experiment quantifying PSF as a function of time since invasion in the field. 3. We found that the nature and strength of B. inermis PSFs did not change over time and were not mediated by soil microbial communities. Though PSFs decreased B. inermis reproduction, they did not significantly limit vegetative growth nor diminish the negative impacts of B. inermis biomass on native species. 4. B. inermis experienced the full strength of its negative PSFs immediately upon invasion, but they were ineffective at reducing B. inermis vigour to facilitate the recovery of the native plant community. We recommend that conservation efforts focus on limiting B. inermis vegetative growth to facilitate community recovery.
dc.identifier.doi	https://doi.org/10.7939/r3-carh-jh51
dc.language.iso	en
dc.rights.uri	http://creativecommons.org/licenses/by-nc/4.0/
dc.subject	biodiversity
dc.subject	community assembly
dc.subject	smooth brome
dc.subject	soil biota
dc.subject	invasion
dc.subject	conservation
dc.title	Data associated with "Vegetative growth drives the negative effects of an invasive species on resident community diversity and is not limited by plant-soil feedbacks: a temporal assessment"
dc.type	http://purl.org/coar/resource_type/c_ddb1
ual.jupiterAccess	http://terms.library.ualberta.ca/public