"What does it mean for an bird to be sick? How does this affect not only survival but also reproduction. In short, the aim of the project is: The role of parasites and pathogens in determining the size and distribution of arctic and antarctic bird populations. 1. Study geographic variation in infections, parasite loads, viral prevalence, immune system functioning 2. Study the effects of infections, parasites, viruses and immune response on fitness parameters and energetics of individually marked birds 3. Link the observed trends to pathogen-host (or parasite-host) interaction, dynamics of the pool of pathogens and pollution levels. 4. Modelling future scenario’s of geographic variation and relating the findings to climate change, nature management and human health."

PPS Arctic: Present day processes, Past changes, and Spatiotemporal variability of biotic, abiotic and socio-environmental conditions and resource components along and across the Arctic delimitation zone. PPS Arctic investigates the causes and consequences of changes in the circumarctic treeline zone, using fieldwork and remote sensing to study and model temporal and spatial aspects of ecological, social and cultural factors. Changes in the zone affect Arctic ecosystem processes, resource availability and the entire Arctic climate through changes in tree and shrub cover and in albedo, with global consequences.

Three terrestrial components of the cryosphere: snow cover, permafrost, and small glaciers will be studied as well as their interactions with society and potential feedbacks to the Global Earth System. Within each area of research the foci of studies will be on the models’ development and creation of conditions for seamless their implementation to improve understanding and projections of environmental change and to serve numerous practical applications.

The Arctic coastal zone is sensitive to changes in marine, atmospheric, and terrestrial systems. Variations in sea ice extent, wave and storm intensity, air and water temperatures, and ground ice content affect the rate and magnitude of coastal change. A very sparsely populated region, the Arctic coastline is poorly observed when compared to temperate and tropical coastal zones, despite the fact that human systems in the Arctic are located in and dependent on processes in the coastal zone. The Arctic coastal zone needs to be monitored, both as a barometer for global change and for its human relevance. The international effort to align coastal observations in the Arctic is led by the Arctic Circumpolar Coastal Observatory Network (ACCO-Net). ACCO-Net includes a network of key sites setup by the Arctic Coastal Dynamics (ACD) project of the IASC, and 17 International Polar Year (IPY) projects from around the Arctic. ACCO-Net provides three categories of support to an SAON: 1) a network of regional experts responsible for running observations; 2) historical and current data in an Arctic circumpolar GIS database; and 3) a catalogue of site characteristics based on remotely sensed products. The regional experts have been assembled through IASC’s Arctic Coastal Dynamics project, and through the IPY project cluster on Arctic coastal observatories, which ACCO-Net leads. The coastal database is currently available in beta form, and includes a segmentation and classification of the circumpolar Arctic coastline. The current coastline used is the World Vector Shoreline, which has been divided into over 8000 segments on the basis of geomorphology, coastline position change rate, and ground composition, as well as other parameters. The GIS format allows searching and querying, and the database is currently mounted as an internet map server. The catalogue of site characteristics has two principle aspects: i) a monitoring template describing the primary and secondary monitoring parameters for each observatory site, and including links to standard operating procedures for each, and ii) standardized coastline position and digital elevation models for each observatory site, based on optical and infrared satellite data collected during IPY as part of the European Space Agency’s IPY program. ACCO-Net partner projects are currently selecting imagery for the catalogue and will co-ordinate their activities via a series of workshops supported by the International Space Science Institute.

The Network for ARCtic Climate and Biological DIVersity Studies (ARCDIV) is a multidisciplinary international research initiative. The project explores the diversity of ecosystem on Arctic archipelago Svalbard, central part of Isfjorden, Billefjorden and Petuniabukta, by integrating existing and new intensive measurements of key biological and physical variables and processes.

Origin, evolution and setting of the Gamburtsev subglacial highlands
Discovered during International Geophysical Year 1957-1958, Antarctica’s Gamburtsev Mountains extend for more than 1,200 km and rise to heights of over 3,000 m. These mountains, however, have never been seen by humans because they are covered by ice up to 600 m thick. Using aircraft and field expeditions, this ambitious project will collect major new data sets – including offshore marine, gravity, magnetics, ice radar and a wealth of geological observations – to produce a four-dimensional history of the evolution of the Gamburtsev mountains. As well as recovering samples from this last great unknown region of Antarctica, the project will shed new light on the origins of the Antarctic ice sheet and its role in future climate change.

ArcticWOLVES is an international initiative developed for the International Polar Year (IPY) 2007-2008. The project will build a network of circumpolar wildlife observatories in order to assess the current state of arctic terrestrial food webs over a large geographical range. The network will provide baseline information to evaluate current and future population trends for a large number of species at several locations using standard protocols. Another aim of the project is to determine the relative importance of bottom-up (resources) and top-down (predators) forces in structuring arctic food webs, and how climate affects these trophic linkages.