2026-04-16T08:33:53Zhttps://repository.lib.bcit.ca/oai/requestoai:repository.lib.bcit.ca:node-15582025-05-14T16:28:41Znode:28oai_pmh:all_repository_itemsThe effect of time-since-burning and hand-pulling on the growth and stem density of Centaurea stoebe and Linaria dalmatica
Prescribed burning and hand-pulling are used to manage invasive plants but treatments can deferentially affect species. My objective is to determine the effect of time-since-burning and hand-pulling on stem density and growth of Centaurea stoebe (spotted knapweed) and Linaria dalmatica (Dalmatian toadflax). Prescribed burns occurred in March 2015 and 2016, while hand-pulling occurred in April and May of 2017. I conducted vegetation surveys in May, June, and July 2017. Growth rates differed among treatments and by species. Centaurea stoebe was not detected in the prescribed burn treatments. Hand-pulling increased stem density of C. stoebe, but individuals were smaller and 60% remained as basal rosettes compared to control. Linaria dalmatica were significantly taller in the burn treatments, and the stem density of L. dalmatica was greater in the prescribed burn and hand-pull treatments compared to control. The tallest L. dalmatica occurred in the 2-year post-burn site, indicating a time-since-burning interaction.
2018-04-18
English
Hindley, Gabrielle
Harrison, Scott
British Columbia Institute of Technology School of Construction and the Environment
2548
Ashley, Ken
Ransome, Douglas
PDF
British Columbia Institute of Technology
Text
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Invasive plants
Prescribed fire