Penguins as Marine Sentinels

By P. Boersma. 2008

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Happy Feet in a Hostile World? The Future of Penguins Depends on Proactive Management of Current and Expected Threats (2019, background): “, 1994), a situation that only improved when – among other measures – the provincial government moved tanker lanes 40 km farther offshore in 1997 (Boersma, 2008).”
Penguin responses to climate change in the Southern Ocean (2009, background): “…typical of higher latitudes (Ducklow et al., 2007); this has prevented impacts on breeding of early spring storms and snow accumulation which affects the earlier breeding of Adélie penguins (Patterson et al., 2003), although these effects are sometimes difficult to avoid (e.g. Boersma, 2008).”
Marine mammals as ecosystem sentinels (2008, background): “Yet seabirds and marine mammals are conspicuous animals that integrate changes in the ecosystem and reflect the existing state of the environment (Aguirre and Tabor 2004; Boersma 2008; Thiele et al. 2004).”
Foraging distance affects reproductive success in Magellanic penguins (2009, background): “Reproductive 271 Mar Ecol Prog Ser 375: 263–275, 2009 success approached one chick per nest with eggs in only one of 25 years in our long-term study of this colony, and average reproductive success is usually less than half a chick per nest with eggs (Boersma 2008).”
Marine top predators as climate and ecosystem sentinels (2019, unknown): “Boersma PD. 2008.”