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Regional Trends
  • Low Arctic species populations have increased between 1970 and 2004
  • Sub Arctic species peaked in the mid-1980s and have been on the decline ever since
  • Sub Arctic species show no overall change between 1970 and 2004
  • High Arctic species have decreased by an average of 26% between 1970 and 2004

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Graphs: ASTI Trends
1 Figure 4 Arctic Species Trend Index with confidence intervals and sample size
2 Figure 2 Data coverage by taxonomic class
3 Figure 5 Arctic Species Trend Index disaggregated into High, Low and Sub Arctic regions
4 Figure 6 Trends in Arctic summer sea-ice extent
5 Figure 7 Population Trends in western Hudson Bay Polar Bears (Ursus maritimus)
6 Figure 8 Index of terrestrial species disaggregated by Arctic boundary
7 Figure 9 Overall index of marine species and index of north Pacific Ocean species
8 Figure 10 Indices of all herbivore species and all herbivores, excluding the waterbird species
9 Figure 11 Indices for all Caribou (Rangifer tarandus) populations, disaggregated into North American and European populations
10 Figure 12 Index of ASTI species disaggregated by taxonomic class
11 Figure 13 Index of all bird species disaggregated into indices of freshwater, marine and terrestrial birds
12 Figure 14 Index of all terrestrial birds disaggregated into an index without goose species and an index of goose species alone
13 Figure 15 Index of all bird species disaggregated into indices of migrant and non-migrant bird populations
14 Figure 16 Global Living Planet Index (LPI) disaggregated into temperate and tropical indices and the Arctic Species Trend Index