Arctic Species Trend Index


Recent Submissions

Now showing 1 - 5 of 6
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    The Arctic Species Trend Index: Migratory Birds Index
    (Conservation of Arctic Flora and Fauna (CAFF)., 2015) Deinet, S.; Zöckler, C.; Jacoby, D.; Tresize, E.; Marconi, V.; McRae, L.; Svobods, M.; Barry, T.
    This report aims to describe the broad-scale trends necessary for designing and targeting informed conservation strategies at the flyway level to address these reported declines. To do this, we examine abundance change in selected Arctic breeding bird species, incorporating information from both inside and outside the Arctic (Figure 1) to capture possible influences at different points during a species’ annual cycle. The inclusion of trend information from non-Arctic locations confers a number of other advantages: data are readily available from key sites where individuals congregate in large, easy-to-count flocks; and adding these data allows for better disaggregation of trends due to larger data set size, thus providing the opportunity to elucidate the regional differences that have already been reported in the literature (Zöckler et al. 2013). Importantly, this addition also makes sense politically as the selected species are dependent on interconnected sites across the globe, meaning that suitable and effective conservation strategies can only be devised through international collaboration.
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    Arctic Species Trend Index: Tracking Trends in Arctic Vertebrate Populations Through Space and Time
    (Conservation of Arctic Flora and Fauna (CAFF), 2012-04) Böhm, M,; McRae, L.; Delnet, S.; Gill, M.; Collen, B.; Earner, Joan; Russell, Don
    "Utilizing the ASTI data (890 vertebrate populations from 323 species spanning a time period from 1951 to 2010), we expanded the original investigation to examine broad-scale spatial patterns of biodiversity change across the Arctic. These patterns were looked at in relation to climatic and other environmental data to investigate potential causal mechanisms of biodiversity change. As well, we evaluated the spatial distribution and quality of biodiversity monitoring across the Arctic for use in identifying critical gaps in monitoring coverage. This report builds on The Arctic Species Trend Index 2010: Tracking trends in Arctic wildlife, which provided our first broad measure of trends in vertebrate populations at a pan-Arctic scale."
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    Arctic Species Trend Index: Key Findings from an In-depth Look at Marine Species and Development of Spatial Analysis Techniques
    (Conservation of Arctic Flora and Fauna (CAFF), 2012-04) Earner, J.; Russell, D.E.; McRae, L.; Delnet, S.; Collen, B.; Gill, M.J.; Price, Courtney; Barry, Tom
    "This report builds on the CAFF report The Arctic Species Trend Index 2010: Tracking trends in Arctic wildlife. This report provides an update of the overall index, an exploration of the data sets using spatial analysis techniques, and a more in-depth examination of the data sets for marine vertebrates. The report is based on two technical reports prepared for CAFF. The report contains a plain language summary of the ASTI methods, as well as a table showing the time spans and sample sizes for the various analyses described."
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    Arctic Species Trend Index: Tracking Trends in Arctic Marine Populations
    (Conservation of Arctic Flora and Fauna (CAFF), 2012-04) McRae, L; Delnet, S.; Gill, M.; Collen, B.; Earner, Joan; Russel, Don
    Track the trends in Arctic marine mammals, birds and fish through this analysis of the marine dataset in the revised Arctic Species Trend Index (ASTI).
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    Arctic Species Trend Index 2010: Tracking Trends in Arctic Wildlife
    (Conservation of Arctic Flora and Fauna (CAFF), 2010) McRae, Louise; Zöckler, Christoph; Gill, Michael; Loh, Jonathan; Latham, Julia; Harrison, Nicola; Martin, Jenny; Collen, Ben
    A 2010 analysis of the Arctic Species Trend Index (ASTI) dataset, an index used to track trend in Arctic fish, mammals and birds. In this report, vertebrate population-abundance data were used to produce an indicator of the trends in Arctic biodiversity over the past 34 years (1970 as the baseline1). This index tracks 965 populations of 306 species, representing 35% of all known vertebrate species found in the Arctic.