Erik Johansson

Field update: Argentina, December 2024 – January 2025

This field season is the first time we’ve been at Punta Tombo, Argentina persistently from October to March since before the pandemic! We’ve seen chicks hatch and watched them grow into chubby fledglings. Unfortunately many died in December with their bellies full; we suspect it was due to toxic algae, which could also be the cause of the 71 southern […]

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Plasticity syndromes in wild vertebrates: Patterns and consequences of individual variation in plasticity across multiple behaviours

From abstract:“Using a 40-year dataset on free-ranging Magellanic penguins, we find evidence of both positively and negatively correlated behavioural plasticities. Plasticity did not strongly affect lifetime reproductive success, but its effect on interannual performance varied significantly by environmental context: plasticity reduced success in average oceanic conditions, increased success in anomalously productive conditions and, contrary to expectation, did not buffer against

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The capacity of sentinel species to detect changes in environmental conditions and ecosystem structure

Authors: T. J. Clark-Wolf, Katie A. Holt, Erik Johansson, Anna C. Nisi, Kasim Rafiq, Leigh West, P. Dee Boersma, Elliott L. Hazen, Sue E. Moore, Briana AbrahmsJournal: Journal of Applied EcologyDOI: https://doi.org/10.1111/1365-2664.14669 “A major obstacle to preventing and reversing biodiversity loss in the Anthropocene lies in the scarcity of tools and data for monitoring the health and trajectory of ecosystems. Sentinel species can provide insight into unobserved ecosystem change,

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A blue whale underwater

Climate change as a global amplifier of human–wildlife conflict

Authors: Briana Abrahms, Neil H. Carter, T. J. Clark-Wolf, Kaitlyn M. Gaynor, Erik Johansson, Alex McInturff, Anna C. Nisi, Kasim Rafiq & Leigh WestJournal: Nature Climate ChangeDOI: 10.1038/s41558-023-01608-5Coverage: KUOW, NPR, The Guardian, Newsweek, Scientific American Climate change and human–wildlife conflict are both pressing challenges for biodiversity conservation and human well-being in the Anthropocene…

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