Social and Behavioral Sciences Commons^™

Virtual Communities Of Practice: Overcoming Barriers Of Time And Technology, Kieran Walsh, Stephen Barnett

Faculty of Science, Medicine and Health - Papers: part A

Letter to the Editor.

Earth Is (Mostly) Flat: Apportionment Of The Flux Of Continental Sediment Over Millennial Time Scales: Reply, J K. Willenbring, Alexandru T. Codilean, B Mcelroy

Faculty of Science, Medicine and Health - Papers: part A

We thank Warrick et al. (2014) for the Comment on our recent synthesis of 10Be-derived denudation rates (Willenbring et al., 2013), in which we suggested that gently sloping areas, representing ∼90% of the Earth’s land surface, have sufficiently high rates of denudation to produce a majority of mass fluxes to the world’s ocean.

First, Warrick et al. take issue with labeling our global cosmogenic nuclide denudation fluxes “sediment” and with the inferred comparisons to other sediment yield apportionment studies. We apologize for instances of unclear wording related to the terms: sediment production, sediment to the oceans, and mass flux. Unlike …

Dominating The Antarctic Environment: Bryophytes In A Time Of Change, Jessica Bramley-Alves, Diana H. King, Sharon A. Robinson, Rebecca E. Miller

Faculty of Science, Medicine and Health - Papers: part A

Polar ecosystems, and particularly Antarctica, are one of the few environs in which bryophytes dominate the flora. Their success in these regions is due to bryophytes’ ability to withstand an array of harsh conditions through their poikilohydric lifestyle. However, the unique conditions that allow bryophytes to proliferate over other forms of vegetation also create considerable limitations to growth and photosynthetic activity. High latitude areas are already experiencing some of the most pronounced and rapid climatic change, especially in the Arctic, the Sub-Antarctic Islands and Maritime Antarctica, and these are predicted to continue over the next century. This climatic change is …