Reconciling 22,000 years of landscape openness in a renowned wilderness

Fletcher, Michael‐Shawn; Romano, Anthony; Lisé‐Pronovost, Agathe; Mariani, Michela; Henriquez, William; Gadd, Patricia; Heijnis, Hendrik; Hodgson, Dominic; Blaauw, Maarten; Sculthorpe, Andry

Abstract

Here, we explore the profound impact of the Tasmanian Aboriginal (Palawa) people on Tasmanian landscapes by examining a 22,000-year record of landscape change from Lake Selina in western Tasmania, Australia. We analysed a sediment core for palaeoecological proxies, namely, pollen (vegetation), charcoal (fire), and geochemical data (landscape weathering). This study reveals that the contemporary landscape is a product of Palawa people’s intentional and strategic fire management practices characterised by fire-dependent buttongrass moorland and the absence of climax rainforest. Specifically, our data show that rainforest failed to re-establish a dominance at Lake Selina following the end of the Last Glacial Maximum, as temperature and moisture increased as a result of Palawa cultural fire for at least 18,000 years. This finding challenges the long-held notion that Tasmania’s wilderness is a product of the absence of human activity. Rather, archaeological sites across western and central Tasmania demonstrate long term presence, with some of the highest artefact and faunal bone densities in the world. The study contributes to the recognition of Tasmania’s west as a cultural landscape shaped by generations of Aboriginal care for Country and fire practices.

Citation

Fletcher, M., Romano, A., Lisé‐Pronovost, A., Mariani, M., Henriquez, W., Gadd, P., Heijnis, H., Hodgson, D., Blaauw, M., & Sculthorpe, A. (2024). Reconciling 22,000 years of landscape openness in a renowned wilderness. Geographical Research, https://doi.org/10.1111/1745-5871.12658

• Journal Article Type: Article
• Acceptance Date: May 19, 2024
• Online Publication Date: Jul 14, 2024
• Publication Date: Jul 14, 2024
• Deposit Date: Jul 22, 2024
• Publicly Available Date: Jul 22, 2024
• Journal: Geographical Research
• Print ISSN: 1745-5863
• Electronic ISSN: 1745-5871
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1111/1745-5871.12658
• Keywords: Aboriginal Australia; cultural burning; cultural landscape; fire; Tasmania; wilderness
• Public URL: https://nottingham-repository.worktribe.com/output/37320188
• Publisher URL: https://onlinelibrary.wiley.com/doi/10.1111/1745-5871.12658