environmental management
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We used a case study in an Australian wet montane forest to establish how predictive fire simulation models can be interpreted as management tools to identify potential fire refuges. We tested the ability of a topographically based fire prediction model developed by Mackey et al (2002) in the O’Shannassy and Maroondah water catchments, NE north-east of Melbourne, Australia, with fire severity data collected following a large wildfire in 2009 in the same area. We derived our fire severity data from a larger map created by the Department of Sustainability and Environment (2009), using SPOT satellite imagery and the normalised-burnt ratio. We examined the relationship between the probability of fire refuge occurrence as predicted by an existing fire refuge model and fire severity experienced during a large wildfire. We also examined the extent to which local fire severity was influenced by fire severity in the surrounding landscape. We used a combination of statistical approaches including generalised linear modelling, variogram analysis and receiver operating characteristics and area under the curve analysis (ROC AUC). We found that the amount of unburnt habitat and the factors influencing the retention and location of fire refuges varied with fire conditions. Under extreme fire conditions, the distribution of fire refuges was limited to only extremely sheltered, fire-resistant regions of the landscape. During extreme fire conditions, fire severity patterns were largely determined by stochastic factors that could not be predicted by the model. When fire conditions were moderate, physical landscape properties appeared to mediate fire severity distribution. Our study demonstrates that land managers can employ predictive landscape fire models to identify the broader climatic and spatial domain within which fire refuges are likely to be present. It is essential that within these envelopes, forest is protected from logging, roads and other developments so that the ecological processes related to the establishment and subsequent use of fire refuges are maintained. Department of Sustainability and Environment (2009) Remote sensing guideline for assessing landscape-scale fire severity in Victoria’s forest estate. Unpublished technical manual., Department of Sustainability and Environment, Melbourne. Mackey, B., D. Lindenmayer, M. Gill, M. McCarthy, and J. Lindesay. 2002. Wildlife, Fire and Future Climate: A Forest Ecosystem Analysis. CSIRO publishing, Collingwood.
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These data are records of all camera trapping observations during the 2016 Litchfield survey. A total of 220 permanent monitoring plots were established between 1994-2002 across three parks (Kakadu, Litchfield and Nitmiluk) in the Top End of the Northern Territory, representing the Three Parks Savanna Fire-effects Plot Network. A detailed flora and fauna survey has been conducted at each plot on a 5-6 year cycle to monitor biotic changes. Plots represent a variety of landforms and vegetation types. Litchfield National Park contains 40 plots. In 2016, 20 plots were surveyed for terrestrial vertebrate fauna using a range of survey methods. A 5 camera array was installed during the 4 day fauna survey, operational for a 5 week period. Current methodology has been adopted to balance maximising detection of feral cats and native mammals, including dogs, in an integrated fashion. A synopsis of related data packages which have been collected as part of the Three Park Savanna Fire-effects Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/three-parks-savanna
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These data are records of all vertebrates trapped at a set of sites within Nitmiluk National Park surveyed in either 2017 or 2018. A total of 20 sites were surveyed for terrestrial vertebrate fauna using a range of survey methods. Thirteen sites have prior monitoring through the Three Parks (Kakadu, Litchfield and Nitmiluk) Savanna Fire-effects Plot Network which involved sampling at 5-6 year intervals at 220 plots established from 1996 – 2002. Seven sites have no prior monitoring. In 2017/18 a paired plot design was implemented at all sites, involving the duplication of some but not all survey methods at a second plot directly adjacent to the traditional plot. Cage and Elliott traps were operated at plot 1 (the traditional plot at those sites with prior sampling). Three pit traps were installed and operated within both plot 1 and plot 2. In addition, two funnel traps were installed on each pit trap. A synopsis of related data packages which have been collected as part of the Three Park Savanna Fire-effects Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/three-parks-savanna
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These data are records of all vertebrates trapped at a set of sites within Nitmiluk National Park surveyed in either 2017 or 2018. A total of 20 sites were surveyed for terrestrial vertebrate fauna using a range of survey methods. Thirteen sites have prior monitoring through the Three Parks (Kakadu, Litchfield and Nitmiluk) Savanna Fire-effects Plot Network which involved sampling at 5-6 year intervals at 220 plots established from 1996 – 2002. Seven sites have no prior monitoring. In 2017/18 a paired plot design was implemented at all sites, involving the duplication of some but not all survey methods at a second plot directly adjacent to the traditional plot. Cage and Elliott traps were operated at plot 1 (the traditional plot at those sites with prior sampling). Three pit traps were installed and operated within both plot 1 and plot 2. In addition, two funnel traps were installed on each pit trap. A synopsis of related data packages which have been collected as part of the Three Park Savanna Fire-effects Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/three-parks-savanna
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The TGB Osborn Vegetation Reserve (or Koonamore Vegetation Reserve (KVR)) is a protected area on Koonamore Station which has been fenced off from grazing since the mid 1920's. In 1925, Professor Theodore George Bentley (TGB) Osborn and his colleagues established a vegetation reserve by fencing off 400 ha of a badly overgrazed portion of the Koonamore station to study the process of recovery of vegetation in the arid zone of South Australia after the removal of grazing pressure. The fence was established to initially keep sheep and later also rabbits from the reserve and allow vegetation regeneration. The resulting long-term vegetation monitoring project at Koonamore is now over 80 years old, making it one of the longest-running monitoring series of its type in the world.; Reserve History: In the mid 1920's Professor TGB Osborn and his colleagues extended their interests in ecology and field physiology of vegetation to the arid zone of South Australia. In 1892 Dixon had warned the Royal Society of South Australia of serious degradation of the soils and vegetation resulting from pastoralism and other alien influences in the region. Equally important to the origin of KVR was the new theory of vegetation succession derived from North American work early in the century. Osborn was particularly concerned with the question as to whether overgrazing by domestic and feral herbivores would result in return of the original vegetation via recognisable 'seral' stages, or whether the changes were ?artificial, mere destructions and as such outside the ecologist's proper field?. Although the concepts of 'succession' and the scope of ecology have developed and changed much since that time, nevertheless it was interest in 'succession to climax' that gave the initial impetus to KVR and many other long-term vegetation studies from that time. The theory of vegetation succession gave rise to the permanent charted quadrat as a technique for observing vegetation change. An extensive series of permanent quadrats was set up on KVR and supplemented by a series of fixed photopoints, in order to pursue the first aim. Although some of these were allowed to lapse within five years, many others were sampled more or less regularly, some almost annually up to the present. Several early publications reviewing the progress of vegetation change resulted. Nothing was done towards the second aim but autecological and population dynamics studies are still being carried out, based on KVR and its records. The Bibliography contains a complete listing of research publications arising from work done on the Reserve. Much of the continuity of the earlier records is due to the efforts of Miss Constance Eardley, who while a lecturer in the Department of Botany, organised annual visits of students and staff to take records and maintain KVR. However, after 1950 the rate of sampling had begun to decline and in the mid 1960's ceased altogether for a period of several years. In the 1970's Dr Russell Sinclair reactivated the recording programme and also began a sustained effort at rabbit control. Although the Reserve was originally fenced with rabbit-proof netting, the rabbits were never eradicated and the population has fluctuated greatly with the seasons. Beginning in 1975, numbers have been kept very low by careful annual inspection and control. Since that time there has been marked seedling establishment of several tree and shrub species which showed little previous regeneration. The Reserve records now contain a history of the vegetation over 50 years without sheep grazing followed by over 30 years without significant grazing by either sheep or rabbits. Kangaroos and emus have never been excluded from the Reserve, as they can jump the fence, and their numbers vary with the seasons. The monitoring work at KVR and the curation of its records is continuing under the direction of Dr Sinclair. The Reserve is also used for post-graduate study and complements the arid-zone research interests of Environmental Biology at the Middleback Field Sation near Whyalla.; Site Description: The Reserve is located in the centre of Koonamore Station, a sheep-grazing lease 400 km north-east of Adelaide, South Australia (Lat. 32º07'S, Long. 139º20'E) in predominantly chenopod shrubland with mean annual rainfall of about 200mm. The area consists of a complex of low sand dunes alternating with sand plain and harder loam soils with travertine limestone on the intervening flats. The tree cover is a low open woodland formation. The sand dunes carry Acacia aneura (mulga), A. burkittii and Eremophila spp., the sand plain a dense stand of Casuarina pauper (blackoak, belah), and the harder loam soils a mixed community of Myoporum platycarpum (false sandalwood) and Alectryon oleifolius (bullock bush, rosewood). Understorey shrubs, which also form low chenopod shrubland communities in some areas, include Atriplex vesicaria (bladder saltbush), A. stipitata and Maireana sedifolia (bluebush). Numerous other chenopodiaceous shrubs also occur, and grass and ephemeral herb cover varies with the seasons. Several species of Senna, Eremophila and other shrubs also occur.; Monitoring activities: Some or all of the following monitoring activities are carried out during visits to the TGB Osborn Vegetation Reserve: Vegetation Quadrats, Photopoints, Senna Quadrat (Cassia Corner), Myoporum platycarpum Plants, Saltbush Transects, Senna Populations, Kangaroo Transects, Rabbit Activity Monitoring and Control.; Rabbit Activity Monitoring and Control: For each visit to the TGB Osborn Vegetation Reserve, a group of 3 or 4 observers walk the whole reserve in strips, identifying rabbit warrens. Each encountered warren is marked on a reserve map, fumigated and filled in. A rabbit warren count for each monitored quadrat along the strips as well as the total number is recorded.
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These data are records of all vertebrates trapped during the 2015 Nitmiluk survey. A total of 220 permanent monitoring plots were established between 1994-2002 across three parks (Kakadu, Litchfield and Nitmiluk) in the top end of the Northern Territory, representing the Three Parks Savanna Fire-effects Plot Network. A detailed flora and fauna survey has been conducted at each plot on a 5-6 year cycle to monitor biotic changes. Plots represent a variety of landforms and vegetation types. Nitmiluk National Park contains 46 plots, each with a paired plot located within 1 km of the primary plot. In 2015, 23 paired plots were surveyed for terrestrial vertebrate fauna using a range of survey methods. A synopsis of related data packages which have been collected as part of the Three Park Savanna Fire-effects Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/three-parks-savanna
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Central Tablelands survey sites commissioned by Coalpac. The COALPAC13(Central Tablelands survey sites commissioned by Coalpac) Survey is part of the Vegetation Information System Survey Program of New South Wales which is a series of systematic vegetation surveys conducted across the state between 1970 and the present.
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The TGB Osborn Vegetation Reserve (or Koonamore Vegetation Reserve (KVR)) is a protected area on Koonamore Station which has been fenced off from grazing since the mid 1920's. In 1925, Professor Theodore George Bentley (TGB) Osborn and his colleagues established a vegetation reserve by fencing off 400 ha of a badly overgrazed portion of the Koonamore station to study the process of recovery of vegetation in the arid zone of South Australia after the removal of grazing pressure. The fence was established to initially keep sheep and later also rabbits from the reserve and allow vegetation regeneration. The resulting long-term vegetation monitoring project at Koonamore is now over 80 years old, making it one of the longest-running monitoring series of its type in the world.; Reserve History: In the mid 1920's Professor TGB Osborn and his colleagues extended their interests in ecology and field physiology of vegetation to the arid zone of South Australia. In 1892 Dixon had warned the Royal Society of South Australia of serious degradation of the soils and vegetation resulting from pastoralism and other alien influences in the region. Equally important to the origin of KVR was the new theory of vegetation succession derived from North American work early in the century. Osborn was particularly concerned with the question as to whether overgrazing by domestic and feral herbivores would result in return of the original vegetation via recognisable 'seral' stages, or whether the changes were ?artificial, mere destructions and as such outside the ecologist's proper field?. Although the concepts of 'succession' and the scope of ecology have developed and changed much since that time, nevertheless it was interest in 'succession to climax' that gave the initial impetus to KVR and many other long-term vegetation studies from that time. The theory of vegetation succession gave rise to the permanent charted quadrat as a technique for observing vegetation change. An extensive series of permanent quadrats was set up on KVR and supplemented by a series of fixed photopoints, in order to pursue the first aim. Although some of these were allowed to lapse within five years, many others were sampled more or less regularly, some almost annually up to the present. Several early publications reviewing the progress of vegetation change resulted. Nothing was done towards the second aim but autecological and population dynamics studies are still being carried out, based on KVR and its records. The Bibliography contains a complete listing of research publications arising from work done on the Reserve. Much of the continuity of the earlier records is due to the efforts of Miss Constance Eardley, who while a lecturer in the Department of Botany, organised annual visits of students and staff to take records and maintain KVR. However, after 1950 the rate of sampling had begun to decline and in the mid 1960's ceased altogether for a period of several years. In the 1970's Dr Russell Sinclair reactivated the recording programme and also began a sustained effort at rabbit control. Although the Reserve was originally fenced with rabbit-proof netting, the rabbits were never eradicated and the population has fluctuated greatly with the seasons. Beginning in 1975, numbers have been kept very low by careful annual inspection and control. Since that time there has been marked seedling establishment of several tree and shrub species which showed little previous regeneration. The Reserve records now contain a history of the vegetation over 50 years without sheep grazing followed by over 30 years without significant grazing by either sheep or rabbits. Kangaroos and emus have never been excluded from the Reserve, as they can jump the fence, and their numbers vary with the seasons. The monitoring work at KVR and the curation of its records is continuing under the direction of Dr Sinclair. The Reserve is also used for post-graduate study and complements the arid-zone research interests of Environmental Biology at the Middleback Field Sation near Whyalla.; Site Description: The Reserve is located in the centre of Koonamore Station, a sheep-grazing lease 400 km north-east of Adelaide, South Australia (Lat. 32º07'S, Long. 139º20'E) in predominantly chenopod shrubland with mean annual rainfall of about 200mm. The area consists of a complex of low sand dunes alternating with sand plain and harder loam soils with travertine limestone on the intervening flats. The tree cover is a low open woodland formation. The sand dunes carry Acacia aneura (mulga), A. burkittii and Eremophila spp., the sand plain a dense stand of Casuarina pauper (blackoak, belah), and the harder loam soils a mixed community of Myoporum platycarpum (false sandalwood) and Alectryon oleifolius (bullock bush, rosewood). Understorey shrubs, which also form low chenopod shrubland communities in some areas, include Atriplex vesicaria (bladder saltbush), A. stipitata and Maireana sedifolia (bluebush). Numerous other chenopodiaceous shrubs also occur, and grass and ephemeral herb cover varies with the seasons. Several species of Senna, Eremophila and other shrubs also occur.; Monitoring activities: Some or all of the following monitoring activities are carried out during visits to the TGB Osborn Vegetation Reserve: Vegetation Quadrats, Photopoints, Senna Quadrat (Cassia Corner), Myoporum platycarpum Plants, Saltbush Transects, Senna Populations, Kangaroo Transects, Rabbit Activity Monitoring and Control.; Myoporum platycarpum: A group of Myoporum platycarpum plants, located in and outside of the vegetation quadrats, have been measured and monitored in the TGB Osborn Vegetation Reserve since they were identified in 1962.
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This package represents all data from Burramys trapping surveys within the Alpine Long Term Monitoring - Burramys Population Surveys project. The surveys began in 1982, and the most recent addition is from 2017. This data package contains data collected at a sub-set of the 481 long term monitoring plots which have been established in Australian Alps and in Tasmania. The sampling regime within the Victorian Network generally consists of multiple randomly positioned transects within sites, (rather than ‘plots’ sensu stricto), with each site, and/or transect geo-located. Point quadrats are taken at fixed intervals along each transect. The number of transects within sites, and sampling frequency varies from annual to decadal, depending on site and purpose. This general array of sampling transects, point quadrats along transects and floristic quadrats is consistent between grassland and snowpatch monitoring sites, although the number of transects and floristic quadrats needed to detect change in key variables (vegetation cover, bare ground, etc) at each site varies over time. There are also long-term monitoring sites in wetlands. The Victorian Alpine Plot Network research plots are revisited on a 2-10 years basis. A synopsis of related data packages which have been collected as part of the Victorian Alpine Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/victorian-alpine
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These data are records of all bird observations at a set of sites within Nitmiluk National Park surveyed in either 2017 or 2018. A total of 20 sites were surveyed for terrestrial vertebrate fauna using a range of survey methods. Thirteen sites have prior monitoring through the Three Parks (Kakadu, Litchfield and Nitmiluk) Savanna Fire-effects Plot Network which involved sampling at 5-6 year intervals at 220 plots established from 1996 – 2002. Seven sites have no prior monitoring. In 2017/18 a paired plot design was implemented at all sites, involving the duplication of some but not all survey methods at a second plot directly adjacent to the traditional plot. At each 100 x 100 m plot 9 x 10 minute meander walking searches were performed during daylight hours at different times of the day (morning, midday and late afternoon) during a 4 day period. A synopsis of related data packages which have been collected as part of the Three Park Savanna Fire-effects Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/three-parks-savanna