scholarly journals Climate change effects on pasture-based dairy systems in south-eastern Australia

2020 ◽  
Author(s):  
K. G. Pembleton ◽  
B. R. Cullen ◽  
R. P. Rawnsley ◽  
T. Ramilan
Keyword(s):  
Climate Change ◽  
Climate Change Effects ◽  
South Eastern ◽  
Eastern Australia ◽  
Dairy Systems ◽  
South Eastern Australia

scholarly journals Distribution of anuran amphibians in massively altered landscapes in south-eastern Australia: effects of climate change in an aridifying region

2009 ◽  
Vol 18 (5) ◽  
pp. 575-585 ◽  
Author(s):  
Ralph Mac Nally ◽  
Gregory Horrocks ◽  
Hania Lada ◽  
P. Sam Lake ◽  
James R. Thomson ◽  
...  
Keyword(s):  
Climate Change ◽  
South Eastern ◽  
Anuran Amphibians ◽  
Eastern Australia ◽  
South Eastern Australia

Are mangroves in Victoria (south-eastern Australia) already responding to climate change?

2017 ◽  
Vol 68 (12) ◽  
pp. 2366 ◽  
Author(s):  
Paul I. Boon
Keyword(s):  
Climate Change ◽  
Sediment Supply ◽  
Small Scale ◽  
Storm Activity ◽  
Plant Vigour ◽  
South Eastern ◽  
Run Off ◽  
Eastern Australia ◽  
Wide Range ◽  
South Eastern Australia

The distribution and productivity of mangroves is directly affected by a wide range of climatic drivers, including temperature, frost, rainfall, evaporation and storm activity, which, in turn, influence a suite of secondary drivers, including changes in freshwater run-off and sediment supply, groundwater dynamics and inter-species competitiveness. The highest-latitude expression of mangroves globally is at Millers Landing, Victoria (38°45′S), and because the vigour and productivity of mangroves across much of Victoria is thought to be limited by low winter temperatures and the incidence and severity of frosts, it is likely that mangroves will be among the first plant communities to be affected by climate change in coastal south-eastern Australia. An increase in plant vigour is likely, but there are almost no historical data with which to compare current rates of primary production. An extension of mangroves to higher latitudes on the mainland is impossible because of the geomorphology of the land that lies further to the south. Small-scale changes in distribution, including the progressive encroachment of mangroves into coastal saltmarsh, are likely to be among the clearest indications of the response of mangroves to a warming climate. Increased effort into tracking changes in mangrove vigour, productivity and distribution is clearly warranted.

Mapping change in key soil properties due to climate change over south-eastern Australia

Soil Research ◽  
2019 ◽  
Vol 57 (5) ◽  
pp. 467 ◽  
Author(s):  
Jonathan M. Gray ◽  
Thomas F. A. Bishop
Keyword(s):  
Climate Change ◽  
Soil Properties ◽  
Management Practices ◽  
Climate Models ◽  
Carbon Accounting ◽  
Depth Interval ◽  
Soil Conditions ◽  
South Eastern ◽  
Eastern Australia ◽  
South Eastern Australia

Climate change will lead to altered soil conditions that will impact on plant growth in both agricultural and native ecosystems. Additionally, changes in soil carbon storage will influence carbon accounting schemes that may play a role in climate change mitigation programs. We applied a digital soil mapping approach to examine and map (at 100-m resolution) potential changes in three important soil properties – soil organic carbon (SOC), pH and sum-of-bases (common macro-nutrients) – resulting from projected climate change over south-eastern Australia until ~2070. Four global climate models were downscaled with three regional models to give 12 climate models, which were used to derive changes for the three properties across the province, at 0–30 and 30–100 cm depth intervals. The SOC stocks were projected to decline over the province, while pH and sum-of-bases were projected to increase; however, the extent of change varied throughout the province and with different climate models. The average changes primarily reflected the complex interplay of changing temperatures and rainfall throughout the province. The changes were also influenced by the operating environmental conditions, with a uniform pattern of change particularly demonstrated for SOC over 36 combinations of current climate, parent material and land use. For example, the mean decline of SOC predicted for the upper depth interval was 15.6 Mg ha–1 for wet–mafic–native vegetation regimes but only 3.1 Mg ha–1 for dry–highly siliceous–cropping regimes. The predicted changes reflected only those attributable to the projected climate change and did not consider the influence of ongoing and changing land management practices.

scholarly journals Modelling and mapping soil organic carbon stocks under future climate change in south-eastern Australia

Geoderma ◽  
2022 ◽  
Vol 405 ◽  
pp. 115442
Author(s):  
Bin Wang ◽  
Jonathan M. Gray ◽  
Cathy M. Waters ◽  
Muhuddin Rajin Anwar ◽  
Susan E. Orgill ◽  
...  
Keyword(s):  
Climate Change ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Stocks ◽  
Future Climate ◽  
Future Climate Change ◽  
South Eastern ◽  
Soil Organic Carbon Stocks ◽  
Eastern Australia ◽  
South Eastern Australia

scholarly journals Interactive effects of climate change and fire on metapopulation viability of a forest-dependent frog in south-eastern Australia

2015 ◽  
Vol 190 ◽  
pp. 142-153 ◽  
Author(s):  
T.D. Penman ◽  
D.A. Keith ◽  
J. Elith ◽  
M.J. Mahony ◽  
R. Tingley ◽  
...  
Keyword(s):  
Climate Change ◽  
Interactive Effects ◽  
South Eastern ◽  
Eastern Australia ◽  
South Eastern Australia

scholarly journals Trophic niches of a seabird assemblage in Bass Strait, south-eastern Australia

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8700 ◽  
Author(s):  
Aymeric Fromant ◽  
Nicole Schumann ◽  
Peter Dann ◽  
Yves Cherel ◽  
John P.Y. Arnould
Keyword(s):  
Climate Change ◽  
Feeding Behaviour ◽  
Stomach Contents ◽  
Breeding Phenology ◽  
South Eastern ◽  
Interspecific Differences ◽  
Eastern Australia ◽  
Prey Remains ◽  
Trophic Niches ◽  
South Eastern Australia

The foraging niches of seabirds are driven by a variety of factors, including competition for prey that promotes divergence in trophic niches. Bass Strait, south-eastern Australia, is a key region for seabirds, with little penguins Eudyptula minor, short-tailed shearwaters Ardenna tenuirostris, fairy prions Pachyptila turtur and common diving-petrels Pelecanoides urinatrix being particularly abundant in the region. The trophic niches of these species were investigated using isotopic values in whole blood and by identifying prey remains in stomach contents. The four species occupied different isotopic niches that varied among years, seasons and regions. Little penguins consumed mainly fish whereas the three procellariforms primarily consumed coastal krill Nyctiphanes australis. The dietary similarities between the procellariforms suggest that food resources are segregated in other ways, with interspecific differences in isotope niches possibly reflecting differential consumption of key prey, divergent foraging locations and depth, and differences in breeding phenology. Because oceanographic changes predicted to occur due to climate change may result in reduced coastal krill availability, adversely affecting these seabird predators, further information on foraging zones and feeding behaviour of small procellariform species is needed to elucidate more fully the segregation of foraging niches, the capacity of seabirds to adapt to climate change and the potential for interspecific competition in the region.

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