Dryandra Woodland - Department of Environment and Conservation ...
Dryandra Woodland - Department of Environment and Conservation ...
Dryandra Woodland - Department of Environment and Conservation ...
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Under the Agriculture <strong>and</strong> Related Resources Protection Act 1976, foxes <strong>and</strong> pigs are declared as<br />
,animals subject to control <strong>and</strong> restricted introductions <strong>and</strong> keeping', whilst the rabbit is categorised as<br />
a 'prohibited animal'.<br />
The fox is a major predator <strong>of</strong> fauna, <strong>and</strong> has been implicated in the decline <strong>of</strong> many threatened<br />
animals (Kinnear et al. 1988, Friend 1990a). In parts <strong>of</strong> <strong>Dry<strong>and</strong>ra</strong>, foxes are controlled by monthly<br />
baiting with 1080-impregnated meat baits. This has resulted in population increases <strong>of</strong> Numbats,<br />
Woylies <strong>and</strong> Tammar Wallabies (Friend 1990b, Kinnear 1992). <strong>Dry<strong>and</strong>ra</strong> was one <strong>of</strong> the areas where<br />
current foxcontrol methods were developed <strong>and</strong> researched. Research continues on optimising<br />
methods <strong>of</strong> fox control. Cats are also present in <strong>Dry<strong>and</strong>ra</strong> <strong>and</strong> could have a similar impact to that <strong>of</strong><br />
foxes. They appear not to be controlled by the current method <strong>of</strong> 1080 baiting.<br />
Rabbits can cause erosion, weed invasion, loss <strong>of</strong> native plant species by overgrazing, <strong>and</strong> compete<br />
with native fauna for food <strong>and</strong> shelter. Rabbits are present in low numbers within <strong>Dry<strong>and</strong>ra</strong>,<br />
occurring at the Settlement <strong>and</strong> on some boundaries. Rabbits are currently controlled by intermittent<br />
baiting with 1080 when it is considered necessary.<br />
There have been reports <strong>of</strong> feral pigs in <strong>Dry<strong>and</strong>ra</strong>. Rooting in soil by pigs has the potential to spread<br />
plant diseases, <strong>and</strong> physically damage the habitats <strong>of</strong> native fauna. Pigs can also predate on lambs<br />
<strong>and</strong> damage agricultural crops.<br />
Feral Honeybees are also present in <strong>Dry<strong>and</strong>ra</strong>. Feral populations originate from poorly maintained<br />
commercial hives. Favourable conditions in the hive can lead to a rapid increase in bee numbers,<br />
causing the queen bee <strong>and</strong> many <strong>of</strong> her workers to leave the hive <strong>and</strong> establish a feral colony. There<br />
has been considerable debate over the possible effects <strong>of</strong> Honeybees on native flora <strong>and</strong> fauna (see<br />
also Section 16. Apiculture). In summary, the effects attributed include:<br />
- interference with recreation sites<br />
- competition for nectar <strong>and</strong> pollen resources with native pollinators;<br />
- inefficient pollination <strong>of</strong> native plants; <strong>and</strong><br />
- displacement <strong>of</strong> native birds <strong>and</strong> mammals from nesting hollows by feral colonies.<br />
House Mice are very common in <strong>Dry<strong>and</strong>ra</strong> <strong>and</strong> throughout Western Australia, sometimes reaching<br />
plague numbers. Their impact on native flora <strong>and</strong> fauna is unknown.<br />
The impact <strong>of</strong> other introduced animals in <strong>Dry<strong>and</strong>ra</strong> is not well documented.<br />
7 The term feral' is generally accepted as referring to domesticated or captive animals gone wild.<br />
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