Lima, ÉFDC, Ribeiro, SC, Mews, HA et al. (15 more authors) (2022) Primary modes of tree mortality in southwestern Amazon forests. Trees, Forests and People, 7. 100180. ISSN 2666-7193
Abstract
Tree mortality rates and the modes of tree death have recently been extensively investigated in the Amazon. However, efforts to describe these processes have not been well distributed across the basin. No study has yet investigated in depth tree mortality process in the unique low, open, bamboo-dominated forests of southwestern Amazonia, a region with a distinct climate and the epicenter of recent severe drought events. Here, we investigated the leading ways that trees die in the terra-firme forests of the southwestern Brazilian Amazon, to understand whether the dynamics of mortality differ from those recorded in other parts of the basin. Using data from six permanent plots located in southwestern Amazonia, we calculated the mortality rate for three main modes of tree death: standing, broken and uprooted. We thus identified the predominant mode of death over a 14 year period (2002–2016). We found that trees in the southwestern Amazon died mainly standing (325 trees, 0.8% year−1) and broken (362 trees, 0.8% year−1); significantly fewer trees died uprooted (156 trees, 0.4% year−1, equivalent to less than one in five of all trees dying). During the study period, the tree mode of death with the greatest proportion in the region alternated between standing and broken trees. Forest characteristics of the southwestern Amazon, like presence and high density of bamboo culms, and the fact that the region was subject to severe droughts in 2005 and 2010, may be affecting how trees die in southwestern Amazon. The presence of these factors makes the forest dynamics of the southwestern Amazon different from other regions of the Amazon basin.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
Keywords: | Tree mortality; Forest dynamics; Amazon rainforest |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Geography (Leeds) > Ecology & Global Change (Leeds) |
Funding Information: | Funder Grant number NERC (Natural Environment Research Council) NE/B503384/1 Gordon & Betty Moore Foundation N/A NERC (Natural Environment Research Council) NE/I02982X/1 NERC (Natural Environment Research Council) NE/D01025X/1 Gordon & Betty Moore Foundation N/A Royal Society No External Ref EU - European Union 291585 (ERC 2011 ADG) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Jan 2022 11:57 |
Last Modified: | 25 Jun 2023 22:52 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.tfp.2021.100180 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:182615 |