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    11048: Invasive weed control along the Hay River

    Remnant riparian vegetation along the Hay River is in need of protection from invasive weeds. Courtesy Lynn Heppell, Wilson Inlet Catchment Committee
    Remnant riparian vegetation along the Hay River is in need of protection from invasive weeds. Courtesy Lynn Heppell, Wilson Inlet Catchment Committee

    The Hay River is one of five river systems that flow into the Wilson Inlet. Of all five rivers, it has the largest catchment, covering 1300 sq km and making up 58 per cent of the Wilson Inlet catchment.

    While most land adjoining the river is cleared for primary production, it does intersect significant areas of national park, smaller nature reserves and pockets of remnant bush, which support a wide variety of native flora and fauna.

    The riparian zone and fringing vegetation of the Hay River therefore represents a significant ecological corridor.

    With the help of State NRM Program funding, this project aims to control 16 ha of watsonia, blackberry and bridal creeper within a 110-ha area of riparian and remnant vegetation along the river.

    Control of these weeds will be undertaken to protect the biodiversity of the ecological corridor as well as provide a buffer zone for declared threatened flora in the adjoining national park. Threatened flora includes:

    • Good's banksia
    • Round-leaf honeysuckle
    • Cossack spider orchid
    • Western giant-leaved moss.
    Investment: $ 10 000
    Delivery organisation: Wilson Inlet Catchment Committee
    Project duration: January 2012 - December 2013
    Location: Hay River, adjoining reserves and national park

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