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Full-Text Articles in Life Sciences
Effects Of Soil Temperature Regimes After Fire On Seed Dormancy And Germination In Six Australian Fabaceae Species, Victor Santana, Ross A. Bradstock, Mark Ooi, Andrew J. Denham, Tony D. Auld, M Baeza
Effects Of Soil Temperature Regimes After Fire On Seed Dormancy And Germination In Six Australian Fabaceae Species, Victor Santana, Ross A. Bradstock, Mark Ooi, Andrew J. Denham, Tony D. Auld, M Baeza
Faculty of Science - Papers (Archive)
In addition to direct fire cues such as heat, smoke and charred wood, the passage of fire leads indirectly to changes in environmental conditions which may be able to break physical dormancy in hard-coated seeds. After a fire, the open canopy and the burnt material lying on the surface alter the thermal properties of the soil, resulting in elevated soil temperatures for long periods of time. We simulated daily temperature regimes experienced at different depths of soil profile after a summer fire. Our aim was to determine whether these temperature regimes and the duration of exposure (5, 15 and 30 …
Increased Mortality Of Naive Varanid Lizards After The Invasion Of Non-Native Cane Toads (Bufo Marinus), Thomas Madsen, Beata Ujvari
Increased Mortality Of Naive Varanid Lizards After The Invasion Of Non-Native Cane Toads (Bufo Marinus), Thomas Madsen, Beata Ujvari
Faculty of Science - Papers (Archive)
Exotic animal and plant species introduced into the Australian continent often imparted catastrophic effects on the indigenous fauna and flora. Proponents of biological control introduced the South American Cane Toad (Bufo marinus) into the sugar cane fields of Queensland in 1935. The Cane Toad is one of the most toxic bufonids, and when seized by naïve Australian predators, the toxin usually kills the attacker. One group of Australian squamate reptiles that are very susceptible to Cane Toad toxins is varanid lizards. Prior to Cane Toad invasion of our study area, the Adelaide River floodplain of the Northern Territory of Australia, …
Before And After Climate Change: The Snow Country In Australian Imaginaries, Andrew W. Gorman-Murray
Before And After Climate Change: The Snow Country In Australian Imaginaries, Andrew W. Gorman-Murray
Faculty of Science - Papers (Archive)
No abstract provided.
Copper And Zinc Tolerance Of Two Tropical Microalgae After Copper Acclimation, Hilary L. Johnson, Jenny L. Stauber, Merrin Adams S, Dianne F. Jolley
Copper And Zinc Tolerance Of Two Tropical Microalgae After Copper Acclimation, Hilary L. Johnson, Jenny L. Stauber, Merrin Adams S, Dianne F. Jolley
Faculty of Science - Papers (Archive)
Current toxicity tests with microalgae are often criticized as being overly sensitive to metals because algae are cultured in metal-deficient media. If such bioassays overestimate copper toxicity in surface waters, the relevance of water quality guidelines derived from these tests is questionable. In this study, the effect of acclimation to copper at environmentally relevant concentrations, on the sensitivity of the marine diatom Nitzschia closterium and the freshwater green alga Chlorella sp. to copper and zinc was examined. N. closterium was acclimated in culture medium containing 5 or 25 g Cu L-1 for 200 days, while Chlorella sp. was acclimated in …
Comparisons Between Groundbased Ftir And Mipas N2o And Hno3 Profiles Before And After Assimilation In Bascoe, C Vigouroux, M De Maziere, C Errera, S Chabrillat, E Mahieu, P Duchatelet, S. W. Wood, D Smale, S Mikuteit, T Blumenstock, F Hase, Nicholas B. Jones
Comparisons Between Groundbased Ftir And Mipas N2o And Hno3 Profiles Before And After Assimilation In Bascoe, C Vigouroux, M De Maziere, C Errera, S Chabrillat, E Mahieu, P Duchatelet, S. W. Wood, D Smale, S Mikuteit, T Blumenstock, F Hase, Nicholas B. Jones
Faculty of Science - Papers (Archive)
Within the framework of the Network for Detection of Atmospheric Composition Change (NDACC), regular ground-based Fourier transform infrared (FTIR) measurements of many species are performed at several locations. Inversion schemes provide vertical profile information and characterization of the retrieved products which are therefore relevant for contributing to the validation of MIPAS profiles in the stratosphere and upper troposphere. We have focused on the species HNO3 and N2O at 5 NDACC-sites distributed in both hemispheres, i.e., Jungfraujoch (46.5 degrees N) and Kiruna (68 degrees N) for the northern hemisphere, and Wollongong (34 degrees S), Lauder (45 degrees S) and Arrival Heights …
Thermoregulation In Juvenile Red Kangaroos (Macropus Rufus) After Pouch Exit: Higher Metabolism And Evaporative Water Requirements, Adam J. Munn, Terence J. Dawson
Thermoregulation In Juvenile Red Kangaroos (Macropus Rufus) After Pouch Exit: Higher Metabolism And Evaporative Water Requirements, Adam J. Munn, Terence J. Dawson
Faculty of Science - Papers (Archive)
The population dynamics of red kangaroos (Macropus rufus) in the Australian arid zone is tightly linked with environmental factors, which partly operate via the survival of juvenile animals. A crucial stage is the young-at-foot (YAF) stage when kangaroos permanently exit the pouch. We have examined the thermal biology of YAF red kangaroos during ages from permanent pouch exit until weaning. Over a wide range of environmental temperatures (ambient temperature [T-a] -5 degrees to 45 degreesC), YAF red kangaroos had a mass-specific metabolism that was generally twice that of adults, considerably higher than would be expected for an adult marsupial of …