Arctic, Circumpolar: projects/activities

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Directory entires that have specified Arctic, Circumpolar as one of the geographic regions for the project/activity and are included in the AMAP, ENVINET, SAON and SEARCH directories. Note that the list of regions is not hierarchical, and there is no relation between regions (e.g. a record tagged with Nunavut may not be tagged with Canada). To see the full list of regions, see the regions list. To browse the catalog based on the originating country (leady party), see the list of countries.

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Displaying: 1 - 4 of 4
1. Lakes; Chemistry

Annual measurements of physical, chemical, and biological variables are taken in small to medium sized, mostly minimally disturbed lakes, situated across the country. Of the 108 lakes that are part of the Trend Station Lake monitoring programme, 20 are situated in AMAP area. The main aim of the monitoring programme is to document long-term changes related to global or regional change and human-generated stressors. To complement the Trend Station Lake monitoring programme, national lake surveys provide spatial data needed to determine regional patterns, and coupled with time-series data, changes in surface water quality. The National Lake Survey (the Surveillance Stations, re-sampled stations) programme for lake water quality, started in 2007 and results in data of all Swedish lake conditions. Each year some 800 new lakes are sampled to determine chemical and physical conditions; lakes are resampled at 6 year intevals. 4824 lakes are sampled in the country during a six-year sampling cycle, with 1270 situated in AMAP area. The variables included in the Trend Station Lake monitoring programme include water chemistry, fish, phytoplankton, macrophytes, zooplankton, and benthic invertebrates, whilst the National Lake Survey is focused solely on chemical and physical parameters.

Absorban acidification Al algae Arctic As Benthos Biological effects Ca Cd conductivity Contaminant transport Cr Cu Data management Discharges Environmental management Epiphyton Eutrophication Fe Fish Food webs Hydrography K Local pollution Long-range transport Mapping Mg Mn N NH4 Ni NO2-NO2 Nutrients Pb pH phytoplankton Sediments Si Spatial trends Temperature Temporal trends TOC Total nitrogen Total phosphor V Zn zooplankton Turbidity Benthic fauna Chlorophyll Secchi depth Litoral zone Sublitoral zone Profundal zone Pelagic zone
2. Metals in reindeer

National Environmental Monitoring Programme in Sweden. The objective of the project is to follow time trends of available metals in vegetation and reindeer (Rangifer tarandus) in Lapland, Sweden. Analysed metals in liver and muscle samples are: Al, Cd, Co, Cr, Cu, Mg, Mn, Ni,Hg, Pb, Zn. Analyses were performed on a continuous basis until 2005. Since then there has only been a collection of samples to be stored in the Environmental Specimen Bank (ESB) at the Swedish Museum of Natural History (NRM).

Al Arctic Biology Ca Cd Contaminant transport Cr Cu DDT Diet Fe Food webs Hg Long-range transport Mapping Mg Mn Mo Ni Pb PCB PCBs Persistent organic pollutants (POPs) Pesticides Rangifer tarandus Reindeer reinder Spatial trends Temporal trends Terrestrial mammals V Zn

Important progress has been made in recent decades to describe and understand how arctic terrestrial vertebrate interact, especially concerning predator-prey interactions. Indirect interactions between different prey species modulated by shared predators (e.g. Arctic fox) are believed to have important impacts on the structure and/or dynamics of some communities. Yet, our understanding of these types of interactions is still fragmentary. To fill that gap, we will build on ongoing projects exploring related questions in Canada (Marie-Andrée Giroux, Nicolas Lecomte, Joël Bêty) and Greenland (Olivier Gilg, Niels M. Schmidt), while taking advantage of existing networks (ADSN in North America and “Interactions” program in Greenland and Eurasia). The aim of the project is to promote the implementation of several common protocols that will (1) improve each collaborator’s knowledge at the site level and, more importantly, that will (2) be merged across sites and years to improve our understanding of the functioning and the influence of indirect interactions on arctic vertebrate communities in general.

Five types of data have been identified (by the 5 initiators of the project already mentioned above) as being mandatories to answer questions related to this topic. These data sets will be collected using 5 specific protocols described in the following chapters:

  1. Monitor predation pressure using artificial nests
  2. Monitor real predation pressure on Calidris nests using Tiny Tags
  3. Observations of predators and lemmings (3b: fox scats DNA barcoding)
  4. Assessing lemming (or “rodent”) relative abundance using different methods
  5. Assessing “herbivores” (excl. rodents) relative abundance using “faeces transects”
Arctic Biodiversity Biological effects Biology Climate change Diet Ecosystems Environmental management Food webs Modelling Populations Reproduction Spatial trends Temporal trends Terrestrial mammals
4. Lake Myvatn and the River Laxá

The aim is to monitor the Lake Myvatn and the river Laxá ecosystem for (1) detecting trends, (2) detecting background variability in the system, (3) assess the efficiency of management measures, (4) observe perturbations in order to generate hypotheses about causal relationships.

Biological effects Biology Populations Catchment studies Fish Spatial trends Environmental management Mining Waterbirds Modelling Biodiversity Arctic Local pollution Food webs Sediments Diet Temporal trends Ecosystems