Data

Measurement of moss growth rates in Antarctica

Australian Antarctic Division
Selkirk, P. ; SELKIRK, PATRICIA
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.aad.gov.au/metadata/ASAC_1104&rft.title=Measurement of moss growth rates in Antarctica&rft.identifier=http://data.aad.gov.au/metadata/ASAC_1104&rft.publisher=Australian Antarctic Data Centre&rft.description=Metadata record for data from ASAC Project 1104See 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.Progress Code: completedStatement: Values provided in temporal and spatial coverage are approximate only. From the referenced paper: Measurement sites were established in 1982, in an area of abundant moss growth near Casey Station on the shore of Vincennes Bay, Wilkes Land, Antarctica. The study sites are within the area that has since been designated ASPA 135 (SCAR 2004). The study area was roughly level, with higher ground to the south from which a small drainage line carried melt water. Beyond a low ridge to the east was a small lake with a rocky margin. The area was scattered with rocks, and three species of moss, Bryum pseudotriquetrum, Ceratodon purpureus, and Schistidium antarctici, formed continuous turfs amongst the rocks in parts of the study area. Plants growing on the higher ground to the south and east formed discontinuous cover, often bolsters, in drier habitats than those along the drainage line or at the lake margin. The level of available moisture at a site influenced the occurrence of species at the site, and morphology of the mosses. Morphology of B. pseudotriquetrum and S. antarctici was strikingly different at wet and dry sites. Method 1: measurements against cranked wires (or pins). Method 2: measurements of stems cut from a turf, bagged or tied into bundles, replaced and remeasured. Method 3: measurement of growth above a stain applied to stems.&rft.creator=Selkirk, P. &rft.creator=SELKIRK, PATRICIA &rft.date=2000&rft.coverage=westlimit=62; southlimit=-67; eastlimit=110; northlimit=-66&rft.coverage=westlimit=62; southlimit=-67; eastlimit=110; northlimit=-66&rft_rights=An excel spreadsheet of locations of measurement pins, plus a pdf copy of the referenced paper are available for download from the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_1104 when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=biota&rft_subject=EARTH SCIENCE > BIOSPHERE > VEGETATION > LEAF CHARACTERISTICS&rft_subject=EARTH SCIENCE > BIOSPHERE > VEGETATION > BIOMASS&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MOSSES/HORNWORTS/LIVERWORTS&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > TERRESTRIAL ECOSYSTEMS > DESERTS&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA&rft_subject=moss&rft_subject=Bryum pseudotriquetrum&rft_subject=growth rate&rft_subject=measurements&rft_subject=pins&rft_subject=Schistidium antarctici&rft_subject=Ceratodon purpureus&rft_subject=NOT APPLICABLE&rft_subject=FIELD SURVEYS&rft_subject=FIELD INVESTIGATION&rft_subject=CEOS&rft_subject=AMD/AU&rft_subject=AMD&rft_subject=CONTINENT > ANTARCTICA > Casey&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Open Licence view details
CC-BY

Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

An excel spreadsheet of locations of measurement pins, plus a pdf copy of the referenced paper are available for download from the provided URL.

This data set conforms to the CCBY Attribution License
(http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_1104 when using these data.

This metadata record is publicly available.

Access:

Other

Full description

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.

Lineage

Progress Code: completed
Statement: Values provided in temporal and spatial coverage are approximate only. From the referenced paper: Measurement sites were established in 1982, in an area of abundant moss growth near Casey Station on the shore of Vincennes Bay, Wilkes Land, Antarctica. The study sites are within the area that has since been designated ASPA 135 (SCAR 2004). The study area was roughly level, with higher ground to the south from which a small drainage line carried melt water. Beyond a low ridge to the east was a small lake with a rocky margin. The area was scattered with rocks, and three species of moss, Bryum pseudotriquetrum, Ceratodon purpureus, and Schistidium antarctici, formed continuous turfs amongst the rocks in parts of the study area. Plants growing on the higher ground to the south and east formed discontinuous cover, often bolsters, in drier habitats than those along the drainage line or at the lake margin. The level of available moisture at a site influenced the occurrence of species at the site, and morphology of the mosses. Morphology of B. pseudotriquetrum and S. antarctici was strikingly different at wet and dry sites. Method 1: measurements against cranked wires (or pins). Method 2: measurements of stems cut from a turf, bagged or tied into bundles, replaced and remeasured. Method 3: measurement of growth above a stain applied to stems.

Data time period: 1982-09-30 to 2006-03-31

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related Organisations

110,-66 110,-67 62,-67 62,-66 110,-66

86,-66.5

text: westlimit=62; southlimit=-67; eastlimit=110; northlimit=-66

Subjects
AMD | AMD/AU | Bryum pseudotriquetrum | CEOS | CONTINENT > ANTARCTICA > Casey | Ceratodon purpureus | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MOSSES/HORNWORTS/LIVERWORTS | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > TERRESTRIAL ECOSYSTEMS > DESERTS | EARTH SCIENCE > BIOSPHERE > VEGETATION > BIOMASS | EARTH SCIENCE > BIOSPHERE > VEGETATION > LEAF CHARACTERISTICS | FIELD INVESTIGATION | FIELD SURVEYS | GEOGRAPHIC REGION > POLAR | NOT APPLICABLE | Schistidium antarctici | biota | growth rate | measurements | moss | pins |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Other Information
Download point for the data (GET DATA > DIRECT DOWNLOAD)

uri : https://data.aad.gov.au/eds/2533/download

Public information for ASAC project 1104 (PROJECT HOME PAGE)

uri : https://projects.aad.gov.au/search_projects_results.cfm?project_no=1104

Citation reference for this metadata record and dataset (VIEW RELATED INFORMATION)

uri : http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_1104

Identifiers