Journal Article 4 climate change velocity Rao index 1 abundance shift 1 bioclimatic variables 1 bird 1 breeding bird survey 1 mehr ... circumpolar forest advance 1 climate change 1 climate change fingerprint 1 climate change metrics 1 climatic analogs 1 demographic models 1 density shift 1 disappearing arctic tundra 1 dispersal 1 elevation 1 forest migration rate 1 forest-tundra ecotone 1 integrodifference equations 1 life-history traits 1 multidirectional distribution shift 1 population spread rate 1 protected areas 1 range expansion 1 range shift 1 rangeShifter 1 slope 1 subarctic 1 systematic conservation planning 1 weniger ...