Katie Holt

Testing Technology with the Woodland Park Zoo

Since 2015, we have deployed automatic weighbridges to track the foraging success of Magellanic penguins at one of their largest breeding colonies – Punta Tombo, Argentina. These weighbridges weigh penguins noninvasively as they leave the nesting area to forage and when they return to feed their chicks. This helps us track whether these penguins are finding enough food for themselves

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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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Unprecedented heat mortality of Magellanic Penguins

Authors: Katie Holt and Dee BoersmaJournal: Ornithological ApplicationsDOI: https://doi.org/10.1093/ornithapp/duab052 Abstract excerpt: Extreme weather events are becoming more frequent and severe, leading to an increase in direct, adverse thermoregulatory impacts on wildlife. Here, we document an unprecedented, single-day, heat-related mortality event of Magellanic Penguins (Spheniscus magellanicus) at Punta Tombo, Chubut Province, Argentina, one of the largest breeding colonies for this species.

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