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Annual Report 2010-2011 (PDF - 2.47 mb) - Royal Botanic Gardens ...

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Contents<br />

OUR achievements – Strategic Priority 2C<br />

Business Plan specific outcomes<br />

(and associated Corporate Plan actions)<br />

Progress against specific outcomes and actions<br />

Specific Outcome 34<br />

Display wild-collected Victorian plant species at<br />

RBG Melbourne to benefit conservation and<br />

community awareness and to conserve water<br />

resources by reducing irrigation through use of<br />

indigenous species.<br />

Additional wild-collected Victorian plant species<br />

have been introduced into the landscape including<br />

additional planting into the Rare and Threatened<br />

Species Beds, Australian Forest Walk, Herbarium<br />

Bed and Conifer Border.<br />

Specific Outcome 35<br />

Advance the integrated conservation of plant<br />

biodiversity, with an emphasis on management<br />

and eradication of, and education about,<br />

environmental weeds.<br />

Specific Outcome 36<br />

Continue implementation of the RBG Cranbourne<br />

remnant vegetation management program, including<br />

woody and herbaceous weed management, and<br />

prescribed burns covering six hectares annually.<br />

Specific Outcome 37<br />

Implement year four of the Grassy Woodland<br />

grassy weed control program.<br />

Through collaboration with colleagues in<br />

the USA, Switzerland, Chile, and the Canary Islands,<br />

a global analysis of invasive species of mountains<br />

has been identified and several papers published by<br />

the group MIREN (Mountain Invasions Research<br />

Network). This work has the potential to identify<br />

species likely to become problematic should<br />

they establish in Australian montane and alpine<br />

vegetation, allowing for sensible targeting of<br />

eradication effort.<br />

The grassy weed control program continued to be a<br />

focus (see Specific Outcome 37 below), as did the<br />

control of disturbance-loving taxa such as Inkweed,<br />

thistles and Nightshade within sites of recent<br />

prescribed burns. Control of highly invasive species<br />

site-wide included Blackberry, Sallow Wattle, Sweet<br />

Pittosporum, Sweet Vernal Grass and Kikuyu.<br />

Three prescribed burn sites were prepared and burn<br />

plans completed and approved. Two prescribed<br />

burns were conducted, totalling 17 hectares. These<br />

burns were located to the south-west of RBG<br />

Cranbourne’s entrance and north-east of the<br />

Australian Garden Stage 2.<br />

An integrated control program of grassy weeds, in<br />

particular Sweet Vernal Grass, within the highly<br />

significant and diverse Grassy Woodland Ecological<br />

Vegetation Class continued to be a management focus.<br />

page 78

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