Between 2001 and 2003, heightened levels of research activity resulted in an increase in the number of species registered as threatened. However, research in 2003 revealed that in the Northern Slopes Bioregion two invertebrate species were no longer classified as threatened and in the Central Highlands one invertebrate species was no longer classified as threatened.
As at May 2003, the greatest number of species that were classified vulnerable, rare or endangered were in the South East Bioregion of Tasmania, for which 342 threatened species were listed, an increase of 42 since 2001.
In 2003, the highest number of threatened invertebrate species was recorded in the Northern Slopes Bioregion (25). The Flinders Bioregion had the greatest number of threatened vertebrate species (27). The South East Bioregion had the highest number of threatened lower plant species (9) and vascular plant species (296).
THREATENED SPECIES, Tasmanian Bioregions
|
 | | Invertebrates | Vertebrates | Lower plants | Vascular plants | Total species |
Bioregion(a)(b) |
| | | | |
no. | no. | no. | no. | no. |
|
| King | | | | | |
| 2001 | 13 | 14 | na | 104 | 131 |
| 2003 | 14 | 20 | 2 | 115 | 151 |
| Northern Slopes | | | | | |
| 2001 | 27 | 14 | na | 109 | 150 |
| 2003 | 25 | 18 | - | 116 | 159 |
| Flinders | | | | | |
| 2001 | 8 | 20 | na | 198 | 226 |
| 2003 | 9 | 27 | - | 215 | 251 |
| West | | | | | |
| 2001 | 21 | 13 | na | 94 | 128 |
| 2003 | 22 | 17 | 1 | 84 | 124 |
| Central Highlands | | | | | |
| 2001 | 18 | 8 | na | 125 | 151 |
| 2003 | 17 | 13 | 2 | 118 | 150 |
| Northern Midlands | | | | | |
| 2001 | 13 | 7 | na | 164 | 184 |
| 2003 | 13 | 10 | 4 | 179 | 206 |
| Ben Lomond | | | | | |
| 2001 | 13 | 10 | na | 143 | 166 |
| 2003 | 14 | 15 | 1 | 138 | 168 |
| Southern Ranges | | | | | |
| 2001 | 17 | 11 | na | 130 | 158 |
| 2003 | 17 | 15 | 1 | 119 | 152 |
| South East | | | | | |
| 2001 | 14 | 16 | na | 270 | 300 |
| 2003 | 17 | 20 | 9 | 296 | 342 |
- nil or rounded to zero
na not available
(a) Refer to the Map of Tasmanian Bioregions that relate to these data.
(b) Species may inhabit more than one bioregion; therefore it is not appropriate to deduce state totals from these data.
(c) Data available as at April 2001 and May 2003.
(d) Numbers have increased for 2003 because of increased surveys, the number of new listing of species and correction of data during 2001 and 2003.
Source: Department of Primary Industries, Water and Environment. |
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