Applications I.- K2: A System for Campaign Deployments of Wireless Sensor Networks.- TigerCENSE: Wireless Image Sensor Network to Monitor Tiger Movement.- Motes in the Jungle: Lessons Learned from a Short-Term WSN Deployment in the Ecuador Cloud Forest.- Deploying Wireless Sensor Networking Technology in a Rescue Team Context.- OS Support and Programming.- Visibility Levels: Managing the Tradeoff between Visibility and Resource Consumption.- Flexible Online Energy Accounting in TinyOS.- TikiriDev: A UNIX-Like Device Abstraction for Contiki.- Applications II.- Location Based Wireless Sensor Services in Life Science Automation.- Hallway Monitoring: Distributed Data Processing with Wireless Sensor Networks.- senSebuddy: A Buddy to Your Wireless Sensor Network.- Communication and MAC.- Evaluation of an Electronically Switched Directional Antenna for Real-World Low-Power Wireless Networks.- Implementation and Evaluation of Combined Positioning and Communication.- SPIDA: A Direction-Finding Antenna for Wireless Sensor Networks.- Testing Selective Transmission with Low Power Listening.- An Experimental Study on IEEE 802.15.4 Multichannel Transmission to Improve RSSI-Based Service Performance.- Poster and Demonstration Abstracts.- Multicasting Enabled Routing Protocol Optimized for Wireless Sensor Networks.- GINSENG - Performance Control in Wireless Sensor Networks.- LynxNet: Wild Animal Monitoring Using Sensor Networks.- Demo Abstract: Bridging the Gap between Simulated Sensor Nodes and the Real World.- A Mote-in-the-Loop Approach for Exploring Communication Strategies for Sensor Networks.- The Deployment of TikiriDB for Monitoring Palm Sap Production.- Cooperative Virtual Memory for Sensor Nodes.- GinConf: A Configuration and Execution Interface for Wireless Sensor Networkin Industrial Context.- EdiMote: A Flexible Sensor Node Prototyping and Profiling Tool.- Virtual Sensor WPAN on Demand.- TikiriAC: Node-Level Equally Distributed Access Control for Shared Sensor Networks.