Brief description
This data collection contains the tabular data and R scripts used to generate three biodiversity indicators for the NSW biodiversity baseline 2017: a) Expected survival of listed threatened species; b) Expected existence of listed threatened ecological communities; and c) Expected survival of phylogenetic diversity of listed threatened species (for mammals, birds and amphibians). The indicators are an application of the ‘expected diversity’ framework. Expected Diversity, as a measure of biodiversity status and trend, was applied to the lists of threatened species and ecological communities as determined by the NSW Threatened Species Scientific Committee (TSS-C) between 1995 and 2017 (prior to 25th August 2017m the date of commencement of the Biodiversity Conservation Act 2016. The data and scripts provided in the data collection will allow the pre-commencement analyses of these indicators to be re-run. The method as applied in the scripts is designed to allow future iterations of the indicators to be run on an annual basis, if desired. Changes to taxonomy, future determinations of the NSW TSS-C, and future reporting on the effectiveness of threatened species management will require revision of the underlying data used in the indicators. Guidelines on how to re-run the analyses using the scripts and adapt the data package for future iterations of the indicators is provided in the implementation report (Nipperess DA, Faith DP, Auld TD, Brazill-Boast J, Williams KJ & King D (2020) Expected survival of listed and threatened species and ecological communities. Biodiversity Indicator Program Implementation Report, Department of Planning Industry and Environment NSW, Sydney, Australia.), and relevant guidelines extracted from the report are attached with this data package.Lineage
Expected Diversity measures rate of loss by determining the amount of biodiversity expected to still exist at some point in the future (e.g., 100 years from now). From this basis, three indicators were developed: Expected survival of listed threatened species; Expected existence of listed threatened ecological communities; and Expected survival of phylogenetic diversity of listed threatened species (for selected groups). Expected survival was estimated from the listed status (Vulnerable, Endangered, Critically Endangered or Extinct) of species and ecological communities. Phylogenetic Diversity measures evolutionary heritage by quantifying the amount of evolutionary history (sum of “branch lengths” on a phylogenetic tree) for any given set of species. The expected survival of Phylogenetic Diversity quantifies the amount or proportion of the tree expected to survive. Determining temporal trends in the indicators required the interpolation of the listed status of threatened species and ecological communities over time. In the ‘best case’ scenario, species and ecological communities were assumed to maintain the same status over time unless specifically changed by a determination of the NSW Threatened Species Scientific Committee (or its predecessor). In the ‘worst case’ scenario, species and ecological communities were assumed to be secure (not threatened) prior to being first listed as threatened. Baseline values (at the time of the commencement of the Act) and temporal trends (from the inception of threatened species legislation in NSW in 1995 to the baseline) for each indicator are reported. Declines, robust to assumptions, have occurred in the expected survival of listed threatened species and Phylogenetic Diversity, but not of listed ecological communities, since 1995. Phylogenetic Diversity analysis was only conducted on selected vertebrate groups (birds, mammals and frogs). Additional lineage is provide in the report (Nipperess DA, Faith DP, Auld TD, Brazill-Boast J, Williams KJ & King D (2020) Expected survival of listed and threatened species and ecological communities. Biodiversity Indicator Program Implementation Report, Department of Planning Industry and Environment NSW, Sydney, Australia.), and relevant guidelines extracted from the report are attached with this data package (IndicatorExplanatoryNotes_ExpectedDiversityMethods.docx).Data time period: 1995-01-01 to 2016-01-01
Subjects
Animal Systematics and Taxonomy |
Biological Sciences |
BIP |
Biodiversity Conservation Act 2016 |
Biodiversity Indicator Program |
Biodiversity Outlook Report |
Conservation and Biodiversity |
Environmental Science and Management |
Environmental Sciences |
Evolutionary Biology |
Environmental Monitoring |
Expected Diversity |
Expected survival |
NSW Threatened Species Scientific Committee |
New South Wales |
Phylogenetic Diversity |
Phylogeny and Comparative Analysis |
Plant Systematics and Taxonomy |
baseline |
biodiversity assessment |
biodiversity indicator |
birds |
frogs |
mammals |
plants |
reptiles |
threatened ecological communities |
threatened species |
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Identifiers
- Local : 102.100.100/336965
- DOI : 10.25919/5e661012983fc
