Cookies

We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.


Durham Research Online
You are in:

The Falkland Islands palaeoecological response to millennial scale climate perturbations during the Pleistocene-Holocene transition : implications for future vegetation stability in Southern Ocean islands.

Scaife, R.G. and Long, A.J. and Monteath, A.J. and Hughes, P.D.M. and Bentley, M.J. and Stone, P. (2019) 'The Falkland Islands palaeoecological response to millennial scale climate perturbations during the Pleistocene-Holocene transition : implications for future vegetation stability in Southern Ocean islands.', Journal of quaternary science., 34 (8). pp. 609-620.

Abstract

Oceanic island flora is vulnerable to future climate warming, which is likely to promote changes in vegetation composition, and invasion of non‐native species. Sub‐Antarctic islands are predicted to experience rapid warming during the next century; therefore, establishing trajectories of change in vegetation communities is essential for developing conservation strategies to preserve biological diversity. We present a Late‐glacial‐early Holocene (16 500–6450 cal a bp) palaeoecological record from Hooker's Point, Falkland Islands (Islas Malvinas), South Atlantic. This period spans the Pleistocene‐Holocene transition, providing insight into biological responses to abrupt climate change. Pollen and plant macrofossil records appear insensitive to climatic cooling during the Late‐glacial, but undergo rapid turnover in response to regional warming. The absence of trees throughout the Late‐glacial‐early Holocene enables the recognition of far‐travelled pollen from southern South America. The first occurrence of Nothofagus (southern beech) may reflect changes in the strength and/or position of the Southern Westerly Wind Belt during the Late‐glacial period. Peat inception and accumulation at Hooker's Point is likely to be promoted by the recalcitrant litter of wind‐adapted flora. This recalcitrant litter helps to explain widespread peatland development in a comparatively dry environment, and suggests that wind‐adapted peatlands can remain carbon sinks even under low precipitation regimes.

Item Type:Article
Full text:Publisher-imposed embargo
(AM) Accepted Manuscript
File format - PDF
(240Kb)
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
Download PDF (Advance online version)
(3985Kb)
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
Download PDF
(3986Kb)
Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1002/jqs.3150
Publisher statement:© 2019 The Authors. Journal of Quaternary Science Published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Date accepted:08 September 2019
Date deposited:11 September 2019
Date of first online publication:08 October 2019
Date first made open access:10 October 2019

Save or Share this output

Export:
Export
Look up in GoogleScholar