2014 Kate Brown_Geraldton Carnation Weed.docx
6426 editor - embargo set to be released 13 May
Aboriginal Engagement, Planning and Lands
Paganoni eterracina trials 2005_2010.xlsx
Adrienne Markey's reconciliation of the 1996 sedges identifications (morphotypes) with Russell Barrett’s taxonomy/sheet determinavits in the Herbarium specimen collection.
Creating dataset 20 May with embargo release of 23 May.
Department of Biodiversity, Conservation and Attractions
All metadata public dataset - changes 26/7/24
The original data for the 146 plots that were used in the analysis. The taxonomy is current as of 1997. This dataset was generated by Neil Gibson from 146 plots (4 excluded in analysis). This Excel workbook has additional information including plot locations, species list, and community groups).
Time series (1994-2010) Tributyl Tin (TBT) concentrations in the sediments of the Coral Bay area in Ningaloo Marine Park.
1997 SCARP plot locations in degrees, minutes and seconds as recorded in 1996 on a GPS with 300 m error in AGD66 datum (they may be AGD84 but I [Adrienne Markey] think it was ADG66).
Port Kennedy eterracina trials_2005_2008.xlsx
A flatfile of species records from 150 plots (including 30 plots from the Ridge Hill Shelf collated by Bronwen Keighery et al.)
This data was sourced from a survey of the quadrat based flora and vegetation of the Darling Scarp carried out in 1997. Reference Markey, A. (1997) A floristic survey of the northern Darling Scarp. Report to CALM, EPA & WACC for the AHC.
Terracina spurge or Geraldton carnation weed (Euphorbia terracina) is an invasive weed that impacts native plant communities across southern mainland Australia and in the United States (USA), including southern California and Pennsylvania. There are, however, few published accounts of appropriate control techniques or recovery of native vegetation following removal of this species. We report here on the results of three adaptive management projects investigating effective control of Terracina Spurge and subsequent recovery of Banksia woodlands, coastal shrublands, and sedgeland communities in the Swan Coastal Plain bioregion, south-west Western Australia. change to test activity stream
Recovery of native plant communities following control of Terracina Spurge (Euphorbia terracina): Three case studies from south-west Western Australia
Brown et al, Ecological Restoration 2014.pdf
setting embargo date as 11 May 2024 - today is 10 May 2024 2.46pm AEST
No new data has been collected or collated, therefore data presented here has been carried over from last year. Anti-fouling chemicals used on shipping and other marine structures (e.g. jetties and pylons) are another source of chemical contamination to marine waters (Environmental Protection Authority 1990). Tributyltin (TBT) compounds have been used as biocides incorporated in antifouling paints since the 1960s. TBT has been recorded in coastal waters since the 1980s (Fandry et al. 2006; Terlizzi et al. 2004; Whitney 1991; World Health Organization 1991). The leachates associated with these antifoulants are known to impact water quality condition, which in turn has deleterious effects on marine biota (Gibbs and Bryan 1994; Negri and Heyward 2001; World Health Organization 1990). In Australia, antifoulants containing tributyltin are not allowed to be used on vessels under 25 m in length, however the legacy of its use will be long lived as TBT is persistent in sediments which may be re-suspended due to natural and anthropogenic disturbances (Langston and Burt 2007; Maata and Koshy 2001). In 1994 a survey undertaken by the then Department of Environmental Protection (Simpson and Field 1995) reported high TBT levels in the sediments of Coral Bay. Since then, there have been changes in the usage of TBT antifoulants and implementation of better boating practices in the bay. A small targeted survey undertaken by the Exmouth District with support from the Marine Science Branch, returned below detection limit concentrations of TBT at Mauds Landing, Inner Coral Bay and Moncks Head, indicating that TBT in sediments is no longer of concern and TBT antifoulants are now not considered an anthropogenic pressure on sediment health. There has been no further TBT in sediment surveys.
Tributyltin concentrations in sediments in the Coral Bay area at the Ningaloo MPA