Warra Tall Eucalypt Relative Vascular Plant Cover Data
This data contains relative species cover of vascular plants in plots of either mature tall, wet eucalypt forest or of 25-50 year-old silvicultural regeneration following clearfell harvesting in the Warra Tall Eucalypt site between 2010 - 2011
Simple
Identification info
- Date (Creation)
- 2010-01-01
- Date (Publication)
- 2023-05-23
- Date (Revision)
- 2025-12-11
- Edition
- 1.0
Identifier
Publisher
Author
University of Tasmania - Wardlaw, Tim (Dr)
Churchill Avenue, Hobart, Tasmania, 7005, Australia
Hobart
Tasmania
7005
Australia
- Website
- https://www.tern.org.au/
- Purpose
- The dataset was collected as part of a broader study examining the responses of bird, plant and beetle species to the intensity of disturbance in the landscape. The study tested the null hypotheses that species persisting in patches of mature forest or recolonising patches of silvicultural regeneration would be insensitive to the intensity of disturbance in the surrounding landscape.
- Credit
- We at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
- Status
- Completed
Point of contact
University of Tasmania - Wardlaw, Tim (Dr)
Churchill Avenue, Hobart, Tasmania, 7005, Australia
Churchill Avenue
Hobart
Tasmania
7005
Australia
- Topic category
-
- Biota
- Environment
Extent
- Description
- The Warra Tall Eucalypt site is approximately 60 km west south-west of Hobart, Tasmania. It lies partly within the Tasmanian Wilderness World Heritage Area.
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Temporal extent
- Time period
- 2010-01-01 2011-12-31
- Maintenance and update frequency
- Not planned
- GCMD Science Keywords
- ANZSRC Fields of Research
- TERN Platform Vocabulary
- TERN Parameter Vocabulary
- QUDT Units of Measure
- GCMD Horizontal Resolution Ranges
- GCMD Temporal Resolution Ranges
- Keywords (Discipline)
-
- Warra
- Southern Forests Experimental Forest Landscape
- Vascular plants
- Forest management
- Disturbance
- Mature forest
- Eucalypt obliqua
Resource constraints
- Use limitation
- The Creative Commons Attribution 4.0 International (CC BY 4.0) license allows others to copy, distribute, display, and create derivative works provided that they credit the original source and any other nominated parties. Details are provided at https://creativecommons.org/licenses/by/4.0/
- File name
- 88x31.png
- File description
- CCBy Logo from creativecommons.org
- File type
- png
- Title
- Creative Commons Attribution 4.0 International Licence
- Alternate title
- CC-BY
- Edition
- 4.0
- Access constraints
- License
- Use constraints
- Other restrictions
- Other constraints
- TERN services are provided on an "as-is" and "as available" basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure. <br />Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN. <br /><br />Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting
- Other constraints
- Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}.
- Other constraints
- Please note: This data has been migrated “as is” from TERN’s SuperSite data portal. Minimal quality assessment has been applied to this data. Please contact the dataset authors for queries regarding the data
Resource constraints
- Classification
- Unclassified
Distribution Information
- Distribution format
-
- NetCDF
Distributor
Distributor
- OnLine resource
- Warra_Tall_cover_of_vascular_plants_data_dictionary
Distribution Information
- Distribution format
-
- NetCDF
Distributor
Distributor
- OnLine resource
- Warra_Tall_cover_of_vascular_plants_data
Distribution Information
- Distribution format
-
Distributor
Distributor
Terrestrial Ecosystem Research Network
Building 1019, 80 Meiers Rd, Indooroopilly, QLD, Australia, 4068
Indooroopilly
QLD
4068
Australia
- OnLine resource
- ro-crate-metadata.json
Resource lineage
- Statement
- Selection of sample plots:<br> The three-scale consistent LDI map of the SFEFL was overlain with the mapped extent of two forest age-classes: (i) mature eucalypt forest > 110 years old and never harvested; and (ii) older (25–50 years-old) wet eucalypt forest that had been silviculturally regenerated after clearfell harvesting. Patches of these age-classes coinciding with pixels that were three-scale consistent for LDI class were identified. All locations of scale-consistent patches of mature eucalypt forest and older silvicultural regeneration were prioritised for field validation according to the following criteria:i. Low altitude (below 600 m); ii. Forest dominated by <em>Eucalyptus obliqua</em>, <em>Eucalyptus regnans </em>, or a mixture of these species; iii. At least 75 m from a road, vehicle track, or edge of a strongly contrasting vegetation type; and iv. Forest patch of an age-class was at least 150 m wide at a point where a plot could be located. The final experimental design comprised seven replicate 50 x 50 m square plots of mature eucalypt forest (MAT plots) at each of four LDI classes (4–7), and seven replicate plots of older silvicultural regeneration (SILV plots) at each of four LDI classes (5–8). Mature forest within highly disturbed areas with LDI class 8 was rare, as was older silvicultural regeneration within relatively undisturbed areas with LDI class 4, so these combinations were not sampled.<br> Calculation of landscape disturbance intensity:<br> A vegetation map of the SFEFL representing the 2009 distribution of nine broad vegetation classes was produced at 1:20,000 scale from forest-types interpreted from aerial photography acquired in the 2000s (Forestry Tasmania, Forest Class 2005 mapping), and converted to 50 m pixel raster format using the open-source GIS software SAGA©. Each vegetation class was assigned a disturbance rating between 1 (least disturbed) for rainforest and 10 (most disturbed) for agricultural land, and each pixel was assigned the disturbance rating corresponding to its vegetation class. Using a moving-window algorithm, the Landscape Disturbance Index (LDI) for each pixel was then calculated by averaging the disturbance rating of all pixels within a given radius of that pixel. Separate LDIs were calculated for radii of 500 m, 1 km and 2 km, to give separate LDI values for each pixel at these three landscape-scales. All LDI values were rounded down to the nearest integer and the raster maps of integer LDIs at each of the three spatial scales were overlaid to identify pixels with the same integer LDI at each of the three spatial scales to produce a “three-scale-consistent LDI” map of the SFEFL.<br>Vascular plant surveys:<br> Six 10 x 10 m subplots were selected within each of the 56 plots for detailed floristic assessment using a method of non-replacement random sampling subject to two conditions: (i) subplots were excluded if they shared a 10-m boundary with a previously selected subplot; and (ii) at least two 10 x 10 m corner regions were sampled. Plot percentage foliage cover (PFC) for each observed species was estimated as the mean PFC of all six subplots at 14 plots, of five of the six subplots at 38 plots, and of four of the six subplots in the remaining four plots. A presence/absence species list was recorded in the subplots where PFC was not estimated, and species that were in presence/absence subplots but not in any of the PFC subplots were assigned a plot cover of 0.5% (the minimum cover score typical of infrequently occurring species). Relative cover was calculated for each species as the PFC of the species as a proportion of the total PFC of all species.
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
- Reference system type
- Geodetic Geographic 2D
Metadata
- Metadata identifier
-
urn:uuid/f35144b8-c38b-4bf2-ac1f-52f36bf7981b
- Title
- TERN GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/f35144b8-c38b-4bf2-ac1f-52f36bf7981b
Point-of-truth metadata URL
- Date info (Creation)
- 2023-05-23T00:00:00.000000+00:00
- Date info (Revision)
- 2025-12-11T22:44:05.199150+00:00
Metadata standard
- Title
- ISO 19115-1:2014/AMD 1:2018 Geographic information - Metadata - Fundamentals
- Edition
- 1
Metadata standard
- Title
- ISO/TS 19115-3:2016
- Edition
- 1.0
Metadata standard
- Title
- ISO/TS 19157-2:2016
- Edition
- 1.0
- Title
- Terrestrial Ecosystem Research Network (TERN) Metadata Profile of ISO 19115-3:2016 and ISO 19157-2:2016
- Date (published)
- 2021
- Edition
- 1.0
Identifier
Overviews
Spatial extent
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Provided by
Associated resources
Not available