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This dataset consists of counts for multiple plant species obtained from the Ethabuka Station and Carlo Reserve in the Simpson Desert, Australia, from 2004-2013 by the Desert Ecology Research Group (DERG) in conjunction with LTERN. It also consists rainfall data obtained from 2004-2012. These datasets were used to perform a Dynamic Factor Analyses for the manuscript, "Life form explains consistent temporal trends across species: the application of dynamic factor analysis". For more information see: DERG; https://www.desertecology.edu.au.
The dataset describes the occurrence of bird species at sites within a burnt woodland. These sites comprise the following design: 5 replicate block. each with 2 large patch sites, 2 small patch sites and 2 matrix sites. One site of each pair was relatively more isolated than the other (surrounded by a higher proportion of unburnt vegetation). In addition, there are also 6 sites located beyond the extent of the fire. The data-set also lists vegetation attributes at each of these sites.
<br>The aim of this project is to compile land use and management practices and their observed and measured impacts and effects on vegetation condition. The results provide land managers and researchers with a tool for reporting and monitoring spatial and temporal transformations of Australia’s native vegetated landscapes due to changes in land use and management practices. Following are the details about Big Scrub, Tintenbar site. </br><br> Pre-European benchmark-analogue vegetation: The site was originally lowland subtropical rainforest on basalt-derived and alluvial soils below 250 m asl and further than 2 km from the coast. </br><br> Brief chronology of changes in land use and management:<ul style="list-style-type: disc;"> <li>1788: Indigenous land management - Goori people</li> <li>1823-25: Explorers Oxley followed by Rous traversed the area</li> <li>1842: Cedar getters ‘moved in’</li> <li>1870: Portion or survey plan prepared for the Tintenbar property</li> <li>1880: Camphor was planted as a shade tree in Lismore 1880s along streets</li> <li>1885: Brush had been largely selected and slightly cleared</li> <li>1900: Clearing done with brush hooks. Small trees were cut down with an axe and large trees were cut down using a cross-cut saw. Brush and fallen timber was burnt</li> <li>1900: Basalt rock removed from paddocks and placed around borders as field stone fencing, Paddock cleared of floaters so it could be ploughed</li> <li>1901: Aggressive pasture grasses established. Initially this was <em>Paspalum</em></li> <li>1901-1978: Dairying and pasture improvement - mainly Kikuyu and fertiliser added</li> <li>1968: Observed incursions of camphor in creeks and gullies but not removed or controlled</li> <li>1979: Changed from dairying to beef cattle production</li> <li>1980-87: Cattle removed - destocked</li> <li>1981-87: Observed incursions of weeds into the former dairy pasture including lantana, barna or elephant (<em>Pennisetum purpureum</em>) grass and tobacco bush and some camphor but not removed or controlled</li> <li>1988: Commenced agisting cattle</li> <li>1990-93: Agisted horses and cattle</li> <li>1993: Ceased agisting cattle and horses</li> <li>1994-2011: Dense stands of camphor left unchecked.</li></ul></br>
This dataset provides understorey herbaceous biomass, ground cover and overstorey woody cover response to different fire regimes over a twenty year period at a grassland and open woodland in the tropical savannas of northern Australia. BOTANAL was used to assess understorey herbaceous biomass. Woody canopy cover was derived from digital analysis of oblique aerial imagery taken from a helicopter at the site in 1995 and again in 2013. Woody cover (tree basal area and canopy cover) was also assessed using a bitterlich gauge on BOTANAL ground based transects in 2009. The data could be used to calibrate models of herbaceous growth and woody cover change in response to long term fire. It may be useful for assessing climate change impacts on aboveground carbon sequestration. The fire regimes tested were of varying frequency (every 2, 4 and 6 years) and season (June vs. October) of fire compared to unburnt controls on woody cover and pasture composition. Sites were open to grazing by cattle.
<br>The aim of this project is to compile land use and management practices and their observed and measured impacts and effects on vegetation condition. The results provide land managers and researchers with a tool for reporting and monitoring spatial and temporal transformations of Australia’s native vegetated landscapes due to changes in land use and management practices. Following are the details about the Taroom Shire Potters Flat. </br><br> Pre-European benchmark-analogue vegetation: The site was originally brigalow <em>Acacia harpophylla</em>, mixed community associated with overstorey several species, including <em>Eucalyptus coolabah</em>, <em>E. cambageana</em>, <em>Casuarina cristata</em>, and a range of understorey species, grassy woodlands and open forests. </br><br> Brief chronology of changes in land use and management:<ul style="list-style-type: disc;"> <li>1860: Area used for sheep grazing by shepherds</li> <li>1870: Permanent fences established</li> <li>1875: Start of continuous or set stocking with sheep</li> <li>1880: Incursion of prickly pear started</li> <li>1904-1929: Continuous grazing with sheep</li> <li>1929-1932: Gradual increase in cattle numbers, decline in sheep</li> <li>1930-1935: Land clearance via ringbarking</li> <li>1932-1970: Almost continuous grazing with cattle - relatively low stock numbers</li> <li>1935: Prickly pear had been destroyed</li> <li>1940-1955: Re-clearing brigalow regrowth with axes and fallen timber burnt</li> <li>1956-1960: Brigalow regrowth left unchecked</li> <li>1960-1962: Brigalow regrowth pulled mechanically and burnt</li> <li>1962-1970: Regrowth commenced restabilising without treatment or control</li> <li>1970: Area/s designated as blocks to be left as shelter belts for cattle</li> <li>1970: Commenced managing areas surrounding the site regrowth (i.e. shelter belt) mechanically</li> <li>1971-2010: Areas surrounding the site regularly and intensively managed with ploughing, fertilising the pasture and cropping</li> <li>1971-2010: Site almost continually used as shelter belt for cattle - high use.</li></ul></br>