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Trend analysis of indicator time series.

By Martin Lindegren (127611), Vasilis Dakos (150752), Joachim P. Gröger (152838), Anna Gårdmark (152842), Georgs Kornilovs (152846), Saskia A. Otto (152850) and Christian Möllmann (152854)

Abstract

<p>Smoothed time series of <i>Pseudocalanus acuspes</i> and <i>Acartia</i> spp. based on GAMs using df = 10 (A, C) and df = 20 (B, D). Bootstrapped confidence intervals are shown by grey lines. Acceleration in the rate of change (slope) in each year are shown by statistically significant second derivatives (<i>f</i> ’’), where black and white dots represent major downward- and upward trends, respectively. Vertical dashed lines mark the timing of the regime shift in the late 1980s.</p

Topics: Ecology, Inorganic Chemistry, ecology, marine and aquatic sciences
Year: 2012
DOI identifier: 10.1371/journal.pone.0038410.g004
OAI identifier: oai:figshare.com:article/282822
Provided by: FigShare
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