11.07.2015 Views

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

PART TWO: DECLARED RARE FLORA IN THE GERALDTON DISTRICTIn 1996, 35 taxa of <strong>Declared</strong> <strong>Rare</strong> <strong>Flora</strong> were known to be extant with<strong>in</strong> <strong>the</strong> boundaries of <strong>the</strong> <strong>Geraldton</strong> <strong>District</strong>. Twospecies listed as presumed ext<strong>in</strong>ct on <strong>the</strong> <strong>Declared</strong> <strong>Rare</strong> <strong>Flora</strong> Schedule are also <strong>in</strong>cluded. While <strong>the</strong>y have beencollected from <strong>the</strong> <strong>Geraldton</strong> <strong>District</strong> <strong>in</strong> <strong>the</strong> past, no extant populations are recorded.A brief description of <strong>the</strong> morphology, distribution, habitat, <strong>and</strong> conservation status is provided for each taxon. Whereappropriate, <strong>the</strong> impact of certa<strong>in</strong> factors such as fire, mechanical disturbance, weed <strong>in</strong>vasion <strong>and</strong> Phytophthora diebackis noted from observations made <strong>in</strong> <strong>the</strong> field dur<strong>in</strong>g rout<strong>in</strong>e monitor<strong>in</strong>g <strong>and</strong> from discussion with <strong>District</strong> <strong>and</strong> researchstaff. Recommendations are made for management <strong>and</strong> protection action to ensure <strong>the</strong> cont<strong>in</strong>ued survival ofpopulations of each taxon.Descriptions of taxa were compiled by consult<strong>in</strong>g references <strong>and</strong> from discussion with botanists. Distribution <strong>and</strong>habitat were recorded from Departmental <strong>Rare</strong> <strong>Flora</strong> files <strong>and</strong> records <strong>in</strong> <strong>the</strong> Western Australian Herbarium. Emphasiswas placed on <strong>the</strong> particular habitat characteristics of locations <strong>in</strong> <strong>the</strong> <strong>Geraldton</strong> <strong>District</strong>. Conservation status wasdeterm<strong>in</strong>ed from field observations, <strong>and</strong> population <strong>and</strong> location data on Departmental files. It is a brief summary of <strong>the</strong>number <strong>and</strong> condition of populations throughout <strong>the</strong> range of <strong>the</strong> taxon <strong>and</strong> threats to population survival. A table foreach taxon lists <strong>the</strong> location, l<strong>and</strong> status, date of last survey, number of plants <strong>and</strong> condition for populations. The list ofknown populations generally refers to those <strong>in</strong> <strong>the</strong> <strong>Geraldton</strong> <strong>District</strong> only <strong>and</strong> populations that occur outside <strong>the</strong><strong>District</strong> are not listed but referred to <strong>in</strong> <strong>the</strong> description of <strong>the</strong> species’ distribution. Not only populations that have beensurveyed are <strong>in</strong>cluded, but also those represented only by a Herbarium specimen if <strong>the</strong>y are from a different locality.These are denoted by an asterisk <strong>and</strong> are <strong>in</strong>cluded because <strong>the</strong>y <strong>in</strong>dicate <strong>the</strong> former wider range of <strong>the</strong> species, where itmay still occur <strong>in</strong> as yet undiscovered populations, although some are known to have been destroyed s<strong>in</strong>ce <strong>the</strong> time ofcollection.Precise locality details are conta<strong>in</strong>ed on Departmental files <strong>and</strong> a computerised database.Of <strong>the</strong> 35 extant taxa <strong>in</strong>cluded <strong>in</strong> <strong>the</strong> program, 18 are endemic to <strong>the</strong> <strong>Geraldton</strong> <strong>District</strong>. Dur<strong>in</strong>g <strong>the</strong> course of <strong>the</strong>program, several species listed as presumed ext<strong>in</strong>ct on <strong>the</strong> <strong>Declared</strong> <strong>Rare</strong> <strong>Flora</strong> Schedule have been found to be extantwith<strong>in</strong> <strong>the</strong> <strong>District</strong>. These are Beyeria lepidopetala, Glyceria drummondii, Menkea draboides <strong>and</strong> Phlegmatospermumdrummondii. Survey work has also resulted <strong>in</strong> <strong>the</strong> discovery of 19 new populations of <strong>Declared</strong> <strong>Rare</strong> <strong>Flora</strong>.23

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!