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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
In Vivo Measurement Of Plant Respiration, M. Ribas-Carbo, J. Flexas, Sharon A. Robinson, G. G.B. Tcherkez
In Vivo Measurement Of Plant Respiration, M. Ribas-Carbo, J. Flexas, Sharon A. Robinson, G. G.B. Tcherkez
Sharon Robinson
Respiration is vital; it is the essence of life. Respiration is the mechanism by which energy obtained during the photosynthesis process is transformed into biochemical energy, in the form of ATP. This transformation of energy keeps all cells in all organisms alive. While energy conversion is the main function of respiration in animals, respiration has several other functions in plants. Among them, interactions with photosynthesis such as photorespiration and the production of carbon skeletons for the many compounds synthesized in plants (e.g., pigments, proteins and secondary metabolites). Therefore, it comes as no surprise that such a key role of respiration …
Using An Unmanned Aerial Vehicle (Uav) For Ultra-High Resolution Mapping Of Antarctic Moss Beds, Arko Lucieer, Sharon A. Robinson, Darren Turner
Using An Unmanned Aerial Vehicle (Uav) For Ultra-High Resolution Mapping Of Antarctic Moss Beds, Arko Lucieer, Sharon A. Robinson, Darren Turner
Sharon Robinson
This study is the first to use an unmanned aerial vehicle (UAV) for mapping moss beds in Antarctica. Mosses can be used as indicators for the regional effects of climate change. Mapping and monitoring their extent and health is therefore important. UAV aerial photography provides ultra-high resolution spatial data for this purpose. In addition, we collected highly accurate and GPS transects to generate a detailed DEM. We calculated a topographic wetness index based on the DEM and compared it to the UAV photography to evaluate local growing conditions. This preliminary study shows that a UAV is an ideal platform for …
Light Interception And Utilisation, Sharon A. Robinson, J. R. Watling
Light Interception And Utilisation, Sharon A. Robinson, J. R. Watling
Sharon Robinson
Initial steps of photosynthesis involve interception and absorption of photons by photosynthetic organs; subsequent steps are involved with utilisation or dissipation of quantum energy so derived. Interception of light varies according to size, angle, orientation and surface features of the photosynthetic organ(s) and is also influenced by changes in the arrangement of photosynthetic tissue within those organs.
Casey: The Daintree Of Antarctica, Dana Bergstrom, Sharon A. Robinson
Casey: The Daintree Of Antarctica, Dana Bergstrom, Sharon A. Robinson
Sharon Robinson
Antarctica is at the edge of life on the planet. Less than 0.5% of the Antarctic continent is ice-free rock or soil and therefore only tiny pockets of land are available for plants to establish. The Australian Antarctic Territory is home to some of the rarest ecosystems on the planet and the plant life at Casey is as good as it gets - Casey has the most extensive and best developed plant communities in continental Antarctica: it is the 'Daintree' of Antarctica. The largest plants are the mosses and they are like miniature old growth forests, growing incredibly slowly. A …
Aerial ‘Oktokopter’ To Map Antarctic Moss, Arko Lucieer, Sharon A. Robinson, Dana Bergstrom
Aerial ‘Oktokopter’ To Map Antarctic Moss, Arko Lucieer, Sharon A. Robinson, Dana Bergstrom
Sharon Robinson
Polar regions are experiencing rapid and severe climatic shifts with major changes in temperature, wind speed and UV-B radiation already observed in Antarctica. As climatic records only extend back 50 years, we urgently need new proxies to determine if coastal climate has changed over the past century.