The following international scientific events and conferences have opened their registrations and are calling for paper submissions: The R User Conference 2011 will take place at the University of Warwick , Coventry on 16-18 August 2011. The conference is organized by the Department of Statistics, University of Warwick and supported by the R Foundation for Statistical Computing . Prior to the conference, on Monday 15 August 2011, tutorials will be offered at the conference website . Each tutorial has a length of 3 hours and takes place either in the morning or afternoon. Early registration & abstracts submission deadline: 1st April 2011. Registration deadline: 27th May 2011 The 2011 IASC European conference is organized by the International Association for the Study of the Commons (IASC) . This year’s conference will be hosted by the Agricultural University of Plovdiv , Bulgaria on 14-18 September 2011 under the topic “Shared Resources in a Rapidly Changing World”. Prominent keynote speakers, including Jouni Paavola, Konrad Hagedorn, Marco Janssen, Ruth Meinzen-Dick, Susan Buck and Tine de Moore, have agreed to participate. Abstract submission deadline: 18th February 2011 The 5th World Congress on Conservation Agriculture , incorporating the 3rd Farming Systems Design Conference will take place in Brisbane, Australia on 26-29th September 2011. The co-location of WCCA and FSD provides a great opportunity to explore the application of conservation agriculture practices and principles in a systems context. The common objective is the design of more productive, economic, and sustainable farming systems to meet the challenges of expanding population, global change, and environmental degradation. Abstract submission deadline: 18th February 2011 The International Conference on Integrated Water Resources Management , will take place in Dresden, Germany on 12-13 October 2011. This year’s conference topic is: “Management of Water in a Changing World: Lessons Learnt and Innovative Perspectives”. Abstract submission deadline: 28th February 2011