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Investigating constraints on direct seeding for native revegetation in the Tasmanian Midlands


Bailey, TG and Harrison, PA and Hanusch, Y and Ranyard, C and Hooghkirk, C and Davidson, NJ and Pinkard, EA and Potts, BM, Investigating constraints on direct seeding for native revegetation in the Tasmanian Midlands, Ecological Management & Restoration, 22, (S2) pp. 106-117. ISSN 1839-3330 (2021) [Refereed Article]

Copyright Statement

Copyright 2021 Ecological Society of Australia and John Wiley & Sons Australia, Ltd

DOI: doi:10.1111/emr.12498


Direct-seeding trials in Tasmania tested the effectiveness of five treatments: a clear polymer film removed at three time intervals; insecticide; wetting agent; irrigation; and caging to exclude all mammal herbivores. The most effective treatment in improving early establishment of 15 native species across 2 years and at five sites was the application of the insecticide Bifenthrin to reduce seed predation by ants. The polymer film removed after 10 weeks also improved germination of a range of shrubby but not tree species. However, these early advantages were eroded over time at the first trial site due to damage from herbivores and at subsequent sites due to weed competition and mortality of seedlings over summer. Caging was beneficial to the ongoing persistence of tree and shrub species but also protected weeds. Further work on seed testing and timely weed control is needed.

Item Details

Item Type:Refereed Article
Keywords:clear polymer film, direct seeding, herbivory, insecticide, seed predation
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Terrestrial ecology
Objective Division:Environmental Management
Objective Group:Terrestrial systems and management
Objective Field:Rehabilitation or conservation of terrestrial environments
UTAS Author:Bailey, TG (Dr Tanya Bailey)
UTAS Author:Harrison, PA (Dr Peter Harrison)
UTAS Author:Hanusch, Y (Ms Yolanda Hanusch)
UTAS Author:Ranyard, C (Ms Claire Ranyard)
UTAS Author:Davidson, NJ (Dr Neil Davidson)
UTAS Author:Potts, BM (Professor Brad Potts)
ID Code:148347
Year Published:2021
Funding Support:Australian Research Council (IC150100004)
Web of Science® Times Cited:4
Deposited By:Plant Science
Deposited On:2022-01-02
Last Modified:2022-04-07

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