DARLING RIVERINE PLAINS BIOREGION Background Report

More documents

Recommendations

Info

16/08/02 Darling Riverine Plains Bioregion Background Report known from the DRP have a completed recovery plan. Most threatened species records are concentrated around Menindee (Map 27). A large number of introduced plant species have been recorded from the bioregion but there is little information about their abundance, distribution or environmental impact. The diversity and abundance of introduced species can be used as an indicator of community disturbance (Commissioner for the Environment 2000). The result of the survey by Dick (1993) indicated a low abundance of these species in the Wombeira landsystem but relative abundances of these species may be higher on the eastern alluvial fans and wetlands of the bioregion. Research into this area is of high priority given the extent of occurrence of some weed species, such as Eichhornia crassipes, Phyla canescens and Lycium ferocissimum. The impact of native woody weed species on the distribution and abundance of fauna is currently being investigated. 4.4.2 Proposed further work Further work required in relation to flora within the DRP includes the following: collation and analysis of all datasets from previous surveys in the DRP; systematic floristic surveys across the DRP using a stratified sampling procedure based on a gap analysis of existing data (such as map sheets with less than ten records), to provide information about the patterns of plant distribution and abundance at the bioregional level; targeted surveys to locate species of conservation concern unlikely to be recorded in systematic surveys as a result of factors such as low abundance, seasonal conditions and habitat preferences; assessment of the status of each species and populations to identify those that may require listing under the TSC Act; identification of declining species, assessment of their rate of decline and measures required to prevent them becoming threatened species; preparation of species profiles for priority species (including threatened and declining species) to identify distribution and abundance, status and threats; population viability analysis and predictive habitat modelling for selected priority plant species; identification of areas of significance for threatened species and populations; preparation and implementation of recovery plans for threatened species and populations not already being prepared; and research into the abundance, impact and control of exotic plant species in the DRP. 92
16/08/02 Darling Riverine Plains Bioregion Background Report 5 TERRESTRIAL VERTEBRATE FAUNA 5.1 AVAILABLE INFORMATION 5.1.1 Sources of data Datasets Records of terrestrial vertebrate fauna from the DRP have been obtained from the Atlas of NSW Wildlife (NPWS), Australian Museum, CSIRO, Australian Bird and Bat Banding Scheme, Birds Australia and various fauna survey reports. Not all of these datasets cover all faunal groups. Records from other sources were not included in this initial analysis and all records were subjected to expert review to identify dubious records. Any records considered to be dubious have been removed from the database used in this analysis. Records for which the location information appears correct but which appear doubtful are identified in the list of native fauna in Appendix E. Surveys Fauna surveys using systematic techniques that have been carried out in the DRP prior to this study are listed in Table 5.1. This table lists the study area, methods of site selection and fauna survey, the number of sites and the survey period for each of these studies. Table 5.1 Summary of systematic fauna surveys conducted within the DRP Dataset Site selection Survey methods Number of Survey period (* = incidental data) sites Midkin Nature Reserve Flora Fauna Stratified based on Elliots, pitfalls, spotlighting, 6 26/5/93 – 30/5/93 Survey veg types identified bird census Hunt (1993b) through photography aerial Boronga Nature Reserve Biodiversity Stratified based on Elliots, cages, pitfalls, harp 14 16/9/93 – 20/9/93 Survey veg types identified traps, bird census, Hunt (1993a) through photography aerial spotlighting Lumeah – Biodiversity and Resource Systematically Elliots, cages, pitfalls, bird 5 19/10/98 – 28/10/98 Survey selected based on census*, spotlighting, herp Henderson (1998) veg types search* Boomi and Boomi West Nature Stratified based on Elliots, pitfalls, bird census, 6 6/12/96 – 14/12/96 Reserves Biodiversity Survey veg types identified herp searches Butler (1996) through photography aerial 93
Page 1 and 2:
DARLING RIVERINE PLAINS BIOREGION B
Page 3 and 4:
For more information data contact t
Page 5 and 6:
3.2 Vegetation Mapping and Descript
Page 7 and 8:
10 APPENDICES 166 A CLIMATIC DATA B
Page 9 and 10:
List of Maps Chapter 1 Map 1 Locati
Page 11 and 12:
PROJECT SUMMARY This report forms p
Page 13 and 14:
abbits are listed as key threatenin
Page 15 and 16:
16/08/02 Darling Riverine Plains Bi
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
ainfall (mm) 900 800 700 600 500 40
Page 33 and 34:
Page 35 and 36:
1500 1000 500 0 -500 -1000 -1500 -2
Page 37 and 38:
Page 39 and 40:
Page 41 and 42: 16/08/02 Darling Riverine Plains Bi
Page 91: 16/08/02 Darling Riverine Plains Bi
Page 133 and 134: Initial Phase Assessment Phase 16/0
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Appendix A: Mean Monthly Rainfall a
Page 169 and 170:
80 70 60 50 40 30 20 10 0 25 20 15
Page 171 and 172:
Major Rangetype Rangetype Physiogra
Page 173 and 174:
Appendix C : Native Flora Other Tha
Page 175 and 176:
Family Scientific Name Common Name
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Family Scientific Name cretica Comm
Page 205 and 206:
Page 207 and 208:
APPENDIX E: Fauna Other than Those
Page 209 and 210:
Common Name Scientific Name No Reco
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Common 1983 1984 1985 1986 1987 198
Page 219 and 220:
Common Name 1983 1984 1985 1986 198
Page 221 and 222:
Taxa No Records Dataset Class Arach
Page 223 and 224:
Taxa No Records Dataset Family Hebr
Page 225 and 226:
Taxa No Records Dataset Tabanidae s
Page 227:
Taxa No Records Dataset Berosus sp
show all

DARLING RIVERINE PLAINS BIOREGION Background Report

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?