Measurement of moss growth rates in Antarctica

Metadata record for data from ASAC Project 1104 See the link below for public details on this project. --- Public Summary from Project --- Mosses are dominant plants in the vegetation of continental Antarctica. This projects measurements of moss growth rates in several habitats will allow estimates...

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Bibliographic Details
Other Authors: SELKIRK, PATRICIA (hasPrincipalInvestigator), SELKIRK, PATRICIA (processor), Australian Antarctic Data Centre (publisher)
Format: Dataset
Language:unknown
Published: Australian Antarctic Data Centre
Subjects:
biota
MOSSES/HORNWORTS/LIVERWORTS
EARTH SCIENCE
BIOLOGICAL CLASSIFICATION
PLANTS
ALPINE/TUNDRA
BIOSPHERE
TERRESTRIAL ECOSYSTEMS
BIOMASS
VEGETATION
LEAF CHARACTERISTICS
DESERTS
moss
growth rate
measurements
pins
Bryum pseudotriquetrum
Schistidium antarctici
Ceratodon purpureus
FIELD SURVEYS
FIELD INVESTIGATION
CONTINENT &gt
ANTARCTICA &gt
Casey
GEOGRAPHIC REGION &gt
POLAR
Casey Station
Wilkes Land
Antarc*
Antarctica
Tundra
Online Access:https://researchdata.ands.org.au/measurement-moss-growth-rates-antarctica/699425
https://data.aad.gov.au/metadata/records/ASAC_1104
http://nla.gov.au/nla.party-617536
Description
Summary:Metadata record for data from ASAC Project 1104 See the link below for public details on this project. --- Public Summary from Project --- Mosses are dominant plants in the vegetation of continental Antarctica. This projects measurements of moss growth rates in several habitats will allow estimates of the ages of stands of moss, predictions of the rate of recovery from disturbance, and predictions of moss growth rates under changed climatic conditions. From the abstract of the referenced paper: Using steel pins inserted into growing moss colonies near Casey Station, Wilkes Land, continental Antarctica, we have measured the growth rate of three moss species: Bryum pseudotriquetrum and Schistidium antarctici over 20 years and Ceratodon purpureus over 10 years. This has provided the first long term growth measurements for plants in Antarctica, confirming that moss shoots grow extremely slowly in Antarctica, elongating between 1 and 5 mm per year. Moss growth rates are dependent on availability of water. Antheridia were observed on some stems of B. pseudotriquetrum; no archegonia or sporophytes were observed. Stems bearing antheridia elongated much more slowly than vegetative stems in the same habitat. Two other methods of growth rate measurement were tested, and gave similar rates of elongation over shorter periods of time. However, for long-term measurements, the steel pin measurements proved remarkably reproducible and reliable.

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