How old is the Tasmanian cultural landscape? A test of landscape openness using quantitative land-cover reconstructions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10368879" target="_blank" >RIV/00216208:11310/17:10368879 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1111/jbi.13040" target="_blank" >http://dx.doi.org/10.1111/jbi.13040</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jbi.13040" target="_blank" >10.1111/jbi.13040</a>

Result language

angličtina

Original language name

How old is the Tasmanian cultural landscape? A test of landscape openness using quantitative land-cover reconstructions

Original language description

Aim: To test competing hypotheses about the timing and extent of Holocene landscape opening using pollen-based quantitative land-cover estimates. Location: Dove Lake, Tasmanian Wilderness World Heritage Area, Australia. Methods: Fossil pollen data were incorporated into pollen dispersal models and corrected for differences in pollen productivity among key plant taxa. Mechanistic models (REVEALS-Regional Estimates of VEgetation Abundance from Large Sites) employing different models for pollen dispersal (Gaussian plume and Lagrangian stochastic models) were evaluated and applied in the Southern Hemisphere for the first time. Results: Validation of the REVEALS model with vegetation cover data suggests an overall better performance of the Lagrangian stochastic model. Regional land-cover estimates for forest and non-forest plant taxa show persistent landscape openness throughout the Holocene (average landscape openness similar to 50%). Gymnoschoenus sphaerocephalus, an indicator of moorland vegetation, shows higher values during the early Holocene (11.7-9 ka) and declines slightly through the mid-Holocene (9-4.5 ka) during a phase of partial landscape afforestation. Rain forest cover reduced (from similar to 40% to similar to 20%) during the period between 4.2-3.5 ka. Main conclusions: Pollen percentages severely under-represent landscape openness in western Tasmania and this bias has fostered an over-estimation of Holocene forest cover from pollen data. Treeless vegetation dominated Holocene landscapes of the Dove Lake area, allowing us to reject models of landscape evolution that invoke late-Holocene replacement of a rain forest-dominated landscape by moorland. Instead, we confirm a model of Late Pleistocene inheritance of open vegetation. Rapid forest decline occurred after c.4 ka, likely in response to regional moisture decline.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Biogeography

ISSN

0305-0270

e-ISSN

—

Volume of the periodical

44

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

2410-2420

UT code for WoS article

000412074300022

EID of the result in the Scopus database

2-s2.0-85021246423