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Social and Behavioral Sciences Commons

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Life Sciences

2005

Effects

Articles 1 - 5 of 5

Full-Text Articles in Social and Behavioral Sciences

Environmental Effects Of Ozone Depletion And Its Interactions With Climate Change: Progress Report, 2004, A Andrady, P Aucamp, A Bais, C. Ballare, L Bjorn, J R. Bornman, M Caldwell, T Callaghan, A P. Cullen, D J. Erickson, F R. De Gruijl, D P. Hader, Mohammad Ilyas, G Kulandaivelu, H D. Kumar, J Longstreth, Richard L. Mckenzie, M Norval, H Redhwi, R C. Smith, Keith R. Solomon, B Sulzberger, Y Takizawa, Xiaoyan Tang, A H. Teramura, A Torikai, J C. Van Der Leun, Stephen R. Wilson, R C. Worrest, R. G. Zepp Jan 2005

Environmental Effects Of Ozone Depletion And Its Interactions With Climate Change: Progress Report, 2004, A Andrady, P Aucamp, A Bais, C. Ballare, L Bjorn, J R. Bornman, M Caldwell, T Callaghan, A P. Cullen, D J. Erickson, F R. De Gruijl, D P. Hader, Mohammad Ilyas, G Kulandaivelu, H D. Kumar, J Longstreth, Richard L. Mckenzie, M Norval, H Redhwi, R C. Smith, Keith R. Solomon, B Sulzberger, Y Takizawa, Xiaoyan Tang, A H. Teramura, A Torikai, J C. Van Der Leun, Stephen R. Wilson, R C. Worrest, R. G. Zepp

Faculty of Science - Papers (Archive)

The complexity of the linkages between ozone depletion, UV-B radiation and climate change has become more apparent.


Effects Of Javan Rusa Deer (Cervus Timorensis) On Native Plant Species In The Jibbon-Bundeena Area, Royal National Park, New South Wales, David Keith, Belinda Pellow Jan 2005

Effects Of Javan Rusa Deer (Cervus Timorensis) On Native Plant Species In The Jibbon-Bundeena Area, Royal National Park, New South Wales, David Keith, Belinda Pellow

Faculty of Science - Papers (Archive)

A reconnaissance survey and exclosure experiment were carried out to examine the effects of Javan rusa deer on native flora and vegetation in Royal National Park on the southern outskirts of Sydney, Australia. Of 78 native plant species examined during the survey, only nine showed no evidence of vertebrate herbivory or physical damage and the majority of these plants were ferns and sedges. The other 69 species showed effects that included defoliation (young and/or old leaves), removal of shoots, bark-stripping, stem breakages and destruction or consumption of reproductive material. These effects varied in severity between species and from place to …


Combined Effects Of Solar Radiation And Desiccation On The Mortality And Development Of Encapsulated Embryos Of Rocky Shore Gastropods, R. Przeslawski Jan 2005

Combined Effects Of Solar Radiation And Desiccation On The Mortality And Development Of Encapsulated Embryos Of Rocky Shore Gastropods, R. Przeslawski

Faculty of Science - Papers (Archive)

Intertidal encapsulated embryos may be synchronously exposed to many environmental stressors, but interactions between some of these factors remain poorly understood. Here, the effects of solar radiation and desiccation on embryonic mortality and developmental rates were assessed using laboratory and field experiments. Egg masses of 3 intertidal gastropod species were exposed for 72 h to combinations of spectral (full spectrum, UV-blocked, dark) and daily emersion treatments (control, 15, 30, 60 min). Siphonaria denticulata and Bembicium nanum embryos were expected to be tolerant to emersion and UVR as they are routinely deposited on exposed rock platforms. In contrast, Dolabrifera brazieri embryos …


The Effects Of Continuous And Fluctuating Copper Exposures On The Marine Alga Phaeodactylum Tricornutum, Brad Angel, Stuart L. Simpson, Jenny L. Stauber, Dianne Jolley Jan 2005

The Effects Of Continuous And Fluctuating Copper Exposures On The Marine Alga Phaeodactylum Tricornutum, Brad Angel, Stuart L. Simpson, Jenny L. Stauber, Dianne Jolley

Faculty of Science - Papers (Archive)

Contaminant concentrations in aquatic systems are seldom constant. Erratic inputs such as industrial discharges, rain water flushing, and random spills may cause concentrations to increase rapidly. Environmental processes may contribute through the dispersive actions of tides and currents, adsorptive losses to or release from resuspended sediments, and contaminant losses due to photo-degradation and volatilization. Despite such variability in contaminant concentrations, environmental guidelines are derived from toxicity test data using continuous exposure, where contaminant concentrations at the beginning of the exposure are assumed to remain relatively constant over the test duration. Responses of organisms exposed to fluctuating contaminant concentrations may differ …


Rotational Effects In The Band Oscillator Strengths And Predissociation Linewidths For The Lowest 1pi U X 1sigma + G Transitions Of N2, V. E. Haverd, B.R. Lewis, S.T. Gibson, G. Stark Jan 2005

Rotational Effects In The Band Oscillator Strengths And Predissociation Linewidths For The Lowest 1pi U X 1sigma + G Transitions Of N2, V. E. Haverd, B.R. Lewis, S.T. Gibson, G. Stark

Faculty of Science - Papers (Archive)

A coupled-channel Schrödinger equation (CSE) model of photodissociation, which includes the effects of all interactions between the , , and and the and states, is employed to study the effects of rotation on the lowest- band oscillator strengths and predissociationlinewidths. Significant rotational dependences are found which are in excellent agreement with recent experimental results, where comparisons are possible. New extreme-ultraviolet (EUV)photoabsorption spectra of the key transition of are also presented and analyzed, revealing apredissociationlinewidth peaking near . This behavior can be reproduced only if the triplet structure of the state is included explicitly in the CSE-model calculations, with a spin-orbit …