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Declared Rare and Poorly Known Flora in the Geraldton District

Declared Rare and Poorly Known Flora in the Geraldton District

Declared Rare and Poorly Known Flora in the Geraldton District

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Critical taxa for staff liaison with l<strong>and</strong>owners are:Caladenia elegans msGlyceria drummondiiDarw<strong>in</strong>ia masoniiHalosarcia bulbosaDaviesia speciosaHypocalymma longifoliumEremophila nivea Pterostylis sp. Northampton (S.D.Hopper 3349)Eucalyptus crucis subsp. praecipuaStylidium coroniformeEucalyptus cupreaVerticordia spicata subsp. squamosaEucalyptus syn<strong>and</strong>ra(xiii)Monitor<strong>in</strong>gWhere possible, all populations <strong>in</strong> <strong>the</strong> <strong>Geraldton</strong> <strong>District</strong> should be <strong>in</strong>spected annually as a requirement under CALM’sPolicy Statement No. 9 to observe fluctuations <strong>in</strong> population numbers <strong>and</strong> to monitor changes <strong>in</strong> <strong>the</strong> habitat. Wheredetrimental changes are seen, this should be followed by appropriate management actions. Species which require mostfrequent monitor<strong>in</strong>g are those likely to be affected by factors such as weed <strong>in</strong>vasion, accidental damage, drought, fungaldisease <strong>and</strong> those disturbance opportunists which decl<strong>in</strong>e rapidly after <strong>the</strong> <strong>in</strong>itial disturbance event.A network of permanent monitor<strong>in</strong>g quadrats should be established on populations of <strong>the</strong> most threatened taxa of<strong>Declared</strong> <strong>Rare</strong> <strong>Flora</strong> with<strong>in</strong> <strong>the</strong> <strong>District</strong>. Through <strong>the</strong> detailed mapp<strong>in</strong>g of <strong>in</strong>dividual plants <strong>in</strong> small populations, <strong>and</strong>permanent sample plots for smaller species <strong>and</strong> larger populations, subsequent surveys can provide <strong>in</strong>formation onpopulation dynamics, plant longevity <strong>and</strong> regeneration. Monitor<strong>in</strong>g quadrats require annual <strong>in</strong>spection.The follow<strong>in</strong>g taxa are <strong>the</strong> highest priority for annual monitor<strong>in</strong>g:Caladenia elegans ms Pterostylis sp. Northampton (S.D.Hopper 3349)Conostylis dielsii subsp. teresStylidium coroniformeEremophila niveaVerticordia spicata subsp. squamosa(xiv)ResearchOnly a few of <strong>the</strong> <strong>Declared</strong> <strong>Rare</strong> <strong>Flora</strong> with<strong>in</strong> <strong>the</strong> <strong>Geraldton</strong> <strong>District</strong> have been subject to detailed studies. Research <strong>in</strong>to<strong>the</strong> taxonomy, genetic systems, population biology <strong>and</strong> ecology of <strong>the</strong> o<strong>the</strong>r taxa is needed to determ<strong>in</strong>e <strong>the</strong> best meansof protect<strong>in</strong>g <strong>and</strong> manag<strong>in</strong>g populations <strong>and</strong> particularly if re-<strong>in</strong>troduction is considered necessary. Response to fire,drought tolerance <strong>and</strong> impact of exotic bees on native poll<strong>in</strong>ators (particularly of members of <strong>the</strong> Orchidaceae) requirespecial attention.The follow<strong>in</strong>g taxa are most urgently <strong>in</strong> need of research:Population Biology <strong>and</strong> Breed<strong>in</strong>g SystemsBeyeria lepidopetalaDrummondita ericoidesCaladenia bryceana subsp. cracens ms Eremophila micro<strong>the</strong>caCaladenia elegans ms Pterostylis sp. Northampton (S.D.Hopper 3349)Daviesia speciosaVerticordia spicata subsp. squamosaFire ResponseBeyeria lepidopetalaDarw<strong>in</strong>ia masoniiCaladenia bryceana subsp. cracens ms Drummondita ericoidesCaladenia elegans msGrevillea christ<strong>in</strong>eaeConostylis dielsii subsp. teres Pterostylis sp. Northampton (S.D.Hopper 3349)Conostylis micranthaVerticordia spicata subsp. squamosaTaxonomicEremophila micro<strong>the</strong>caHydatella leptogyne(xv)L<strong>in</strong>ear Mark<strong>in</strong>g29

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