11 heritage living | south australia 5 8 10 13 - National Trust of ...

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places Left to right Xanthorrhoea semiplana ssp tateana, Oleraia rudus, Ancient Eucalyptus cneorifolia. Photos: Glenn Williams Zelling Reserve Native Vegetation Survey – Kangaroo Island Glenn Williams & Marcus Beresford | NTSA Councillor A survey to update basic biological data for the Trust’s largest nature reserve (Zelling Reserve 397 ha), on the lower portion of the Dudley Peninsula at the eastern end of Kangaroo Island, was carried out with volunteer help late last year. Glenn Williams, Andrew Crompton and June Plush took part. Three infrared cameras were deployed at separate sites on the first evening, along with a borrowed bat detector. A few images of wildlife were captured, but no bat calls due to technical issues. Birds and animals were not formally recorded as the team was focussed on the vegetation, though it was impossible to ignore large flocks of Yellow-tailed Black Cockatoos, groups of White-winged Choughs and populations of Kangaroos, Tamar Wallabies; a veritable minefield of Echidna diggings, the odd Brush-tail Possum and one stunning Rosenberg’s Goanna. The 160 plants species recorded include the nationally vulnerable Kangaroo Island Turpentine Bush (Beyeria subtecta), while the 5 gum tree species include the rare Crimson Mallee (Eucalyptus lansdowneana). Other trees include the Southern Cypress Pine (Callitris gracilis) and Stalked Oak Bush (Allocasuarina striata). There are rare Tate’s Grass-trees or yaccas (Xanthorrhoea semiplana ssp tateana) various orchids, heaths, wallaby and spear grasses, and banksias. As is often the case with islands, there are a number of plant species unique to Kangaroo Island, plus others which are local sub-species or recognised variations of mainland species. In Zelling Reserve there are six Kangaroo Island-named plant species, such as the Kangaroo Island Gland Flower (Adenanthos macropodianus), Kangaroo Island Conesticks (Petrophile multisecta,) Kangaroo Island Brush Heath (Brachyloma ericoides ssp bicolour) and Kangaroo Island Dampiera (Dampiera lanceolata var insularis). The Reserve contains seven species of plants which are formally classified to be of conservation importance either nationally, in SA or regionally. In addition to a general list of native plant species compiled from the team’s observations, eight survey sites were established. An fire scar from October 2006 was mapped using a GPS survey and a site map and sample images prepared. Alien plant species were restricted to a few highly disturbed edges adjacent to the southern boundary with agricultural land, the entrance to nearby Simpson Conservation Park and minor kangaroo tracks. There is barely any evidence of weed ingress from the impact of the 2006 fire and bulldozed fire-break. Much of the adjacent roadside vegetation is in Category 1 condition. A Heritage Agreement for this Reserve is warranted, and options for future management with the government Parks service are to be explored. Heritage living | 8 | south Australia
...there are a number of plant species unique to Kangaroo Island, plus others which are local sub-species or recognised variations of mainland species. In Zelling Reserve there are six Kangaroo Island-named plant species... Main photo Callistemon rugulosus. Insert Adriana quadripartite. Photos: Glenn Williams Heritage living | 9 | south Australia
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