CAFF Assessment Series No. 7. The Arctic Species Trend Index: Tracking trends in Arctic marine populations

McRae, Louise and Deinet, S and Gill, M.J. and Collen, Ben (2012) CAFF Assessment Series No. 7. The Arctic Species Trend Index: Tracking trends in Arctic marine populations. Project Report. Conservation of Arctic Flora and Fauna, Iceland.

Preview

PDF - Published Version Download (1MB) | Preview

Abstract

Due to the complex temporal dynamics of wildlife populations and fish stocks, long-term monitoring data measuring change in population trends is a necessary and revealing way to track the effect of environmental changes on wildlife. The Arctic Species Trend Index (ASTI) tracks the temporal abundance in 890 populations of 323 vertebrate species. This represents an update of the index first reported on in 2010 (McRae et al. 2010) and shows that average species population abundance in the Arctic has increased over the time period between 1970 and 2007. This pattern, however, is not consistent among regions as vertebrate abundance has increased on average in the low Arctic but not in the high Arctic and sub Arctic. The marine component of the ASTI shows a greater increase – and evidence is presented that the trends in marine species are driving the pan-Arctic index. The marine trend varies according to taxonomic class and ocean basin, among other variables.

Item Type:	Monograph (Project Report)
Related URLs:
Subjects:	Natural Environment > Fauna Natural Environment > Oceans Research and Education > Projects
Organizations:	Arctic Council > Conservation of Arctic Flora and Fauna Working Group (CAFF)
Date Deposited:	23 Apr 2012 08:46
URI:	https://library.arcticportal.org/id/eprint/1665

Actions (login required)

View Item