Population Survey methods Consensus on the best survey methods High WS/NE; I/G status e.g. aerial or for accurate population size estimates Population Data analysis Medium WS/NE; I/G Can datasets from aerial ship status surveys be combined for accurate estimation of population size and trend Demography Annual breeding Population scale estimates of annual High WS/NE; I/G success breeding success (based on winter ratios of adult males, young males, and females) Demography Annual breeding Estimates of clutch size, hatching Medium WS/NE; I/G success success, fledging success and breeding season parameters Demography Annual breeding Estimate of breeding propensity of High WS/NE success individual females in WS/NE population Demography Annual breeding Estimate of breeding propensity of Medium I/G success individual females in I/G population Demography Survival Estimate of survival rates for all age/sex Medium WS/NE; I/G cohorts in both populations Population Limitations to Clarify causes of apparent low breeding High WS/NE; I/G dynamics productivity success, e.g. faltering lemming cycles Population Limitations to Extent to breeding success governed High WS/NE; I/G dynamics productivity by food availability in spring staging, and potentially wintering areas Ecology Diet during spring Proportional representation of prey types, Medium WS/NE; I/G e.g. Bivalves, fish, in spring diet Ecology Limitations to Extent of 'drying-out' of tundra pools in Medium WS/NE; I/G food availability key breeding areas, and effects on invertebrate abundance Ecology Limitations to Evidence of phenological mismatch Medium WS/NE; I/G food availability relating to arrival of females, hatching, and emergence of aquatic invertebrates Ecology Limitations to Identify key limitations to food High WS/NE; I/G food availability availability in wintering and staging areas Methods Consensus on census methodology Medium WS/NE; I/G Methods Can datasets from aerial and ship surveys Medium WS/NE; I/G be combined for accurate estimation of population size and trend 1 WS/NE = West Siberia/North Europe population; I/G = Iceland/Greenland population.
Population status Survey methods Consensus on the best survey methods e.g. aerial or for accurate population size estimates High WS/NE; I/G Population status Data analysis Can datasets from aerial ship surveys be combined for accurate estimation of population size and trend Medium WS/NE; I/G Demography Annual breeding success Population scale estimates of annual breeding success (based on winter ratios of adult males, young males, and females) High WS/NE; I/G Demography Annual breeding success Estimates of clutch size, hatching success, fledging success and breeding season parameters Medium WS/NE; I/G Demography Annual breeding success Estimate of breeding propensity of individual females in WS/NE population High WS/NE Demography Annual breeding success Estimate of breeding propensity of individual females in I/G population Medium I/G Demography Survival Estimate of survival rates for all age/sex cohorts in both populations Medium WS/NE; I/G Population dynamics Limitations to productivity Clarify causes of apparent low breeding success, e.g. faltering lemming cycles High WS/NE; I/G Population dynamics Limitations to productivity Extent to breeding success governed by food availability in spring staging, and potentially wintering areas High WS/NE; I/G Ecology Diet during spring Proportional representation of prey types, e.g. Bivalves, fish, in spring diet Medium WS/NE; I/G Ecology Limitations to food availability Extent of 'drying-out' of tundra pools in key breeding areas, and effects on invertebrate abundance Medium WS/NE; I/G Ecology Limitations to food availability Evidence of phenological mismatch relating to arrival of females, hatching, and emergence of aquatic invertebrates Medium WS/NE; I/G Ecology Limitations to food availability Identify key limitations to food availability in wintering and staging areas High WS/NE; I/G Methods Consensus on census methodology Medium WS/NE; I/G Methods Can datasets from aerial and ship surveys be combined for accurate estimation of population size and trend Medium WS/NE; I/G 1 WS/NE = West Siberia/North Europe population; I/G = Iceland/Greenland population.
mop6_27_draft_issap_ltd.docx