Warra Site Beetle Survey Data, Southern Forests Experimental Forest Landscape, 2010-2011
This record is on the beetle survey conducted at the Warra Site, as part of the Southern Forests Experimental Forest Landscape (SFEFL). The data set contains information on beetle sample and species identification details, the number of individual specimens sampled, the age class of individuals and any relevant comments for each observation in the data set.
Simple
Identification info
- Date (Creation)
- 2010-03-01
- Date (Publication)
- 2010-04-15
- Date (Revision)
- 2025-12-11
- Edition
- 1
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 data set 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 surrounding plots of either mature tall, wet eucalypt forest or of 25–50 year-old silvicultural regeneration following clearfell harvesting. The study tested the null hypotheses that species persisting in patches of mature forest or re-colonising patches of silvicultural regeneration would be insensitive to the intensity of disturbance in the surrounding landscape. The study was done in 2010–2011 in the Southern Forests Experimental Forest Landscape (SFEFL) a 32 x 35 area anchored on the Warra Long-Term Ecological Research site and extending eastwards to the estuary of the Huon River.
- 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
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
- 2010-03-01 2010-04-15
- 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)
-
- Beetle Survey
- Warra
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
- <br>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.</br>
Resource constraints
- Classification
- Unclassified
Distribution Information
- Distribution format
-
- NetCDF
Distributor
Distributor
- OnLine resource
- Warra_Site_Beete_Survey_Data_2010-2011
Distribution Information
- Distribution format
-
- NetCDF
Distributor
Distributor
- OnLine resource
- Warra_Site_Beetle_Survey_DataDictionary
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
- The surveys of the three taxonomic groups were done in fifty-six, 50x50 m plots – 28 each in mature eucalypt forest and silvicultural regeneration. Those plots were located to sample the measured range of average disturbance intensity (based on the mix of vegetation classes) at three scales, 0.5, 1 and 2 km – in the circular landscapes surrounding the plots. The beetle data set was based on window intercept trap sampling to collect beetles at each 50 x 50 m plot-corner done on over a six-week period in March – April 2010.<br></br> Methods used: <ul style="list-style-type: disc;"> <li>1) Calculation of landscape disturbance intensity: A vegetation map of the SFEFL representing the 2009 distribution of nine broad vegetation classes (asn_wrra_SFEFL_vegetation_class.csv) was produced at 1:20,000 scale from forest-types interpreted from aerial photography (Stone, 1998, Tasforests, 10: 15-32) 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 (asn_wrra_SFEFL_vegetation_class.csv), 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. </li> <li>2)Selection of sample plots: 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 <i>E. obliqua</i>, <i>E. regnans</i>, 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.</li> <li>3) Beetle surveys: Single triangular-window intercept traps, each with a rain diverter mounted in the funnel above the collection bottle, were installed at each corner of each plot in early summer 2009–10. The position of each trap was adjusted to provide as open a flight-line as possible for insects travelling at trap height (about 0.5–1.0 m above ground-level). Collection bottles were charged with 100 ml of 95% ethanol and left for a 6-week period in March–April 2010. At the end of this period, collection bottles were removed, topped up with 95% ethanol, and stored in a cool room at 3°C until specimen identification and pinning. The data from the four traps at each plot were aggregated to give the number of specimens of each taxon collected on each plot. All beetles collected have been pinned and incorporated into the Tasmanian Forest Insect Collection housed at the Tasmanian Museum and Art Gallery.</li> <li>4) Study Extent Description: The three-scale consistent LDI map 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 <i>E. obliqua</i>, <i>E. regnans</i>, 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.</li></ul>
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
- Reference system type
- Geodetic Geographic 2D
Metadata
- Metadata identifier
-
urn:uuid/46076a71-d76c-466a-807c-38c0b8fd9980
- 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/46076a71-d76c-466a-807c-38c0b8fd9980
Point-of-truth metadata URL
- Date info (Creation)
- 2023-04-11T00:00:00.000000+00:00
- Date info (Revision)
- 2025-12-11T22:30:22.005555+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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W
Provided by
Associated resources
Not available