Magellanic penguins

Foot darkening with age in Spheniscus penguins: applications and functions

Papers /

Authors: Ginger Rebstock, Pearl Wellington, Dee BoermsaJournal: PeerJDOI: https://doi.org/10.7717/peerj.17937 From the abstract: “We found that Spheniscus penguins have pale feet at hatching and the feet become darker with age throughout the lives of individuals. We showed that we can accurately predict the age structure of a colony of Magellanic penguins Spheniscus magellanicus, but not the ages of individual penguins, based […]

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Increasing environmental variability inhibits evolutionary rescue in a long-lived vertebrate

Abrahms Lab, Papers /

Authors: T. J. Clark-Wolf, P. Dee Boersma, Floriane Plard, Ginger A. Rebstock, and Briana AbrahmsJournal: PNASDOI: https://doi.org/10.1073/pnas.2406314121 “Using a multidecadal dataset on Magellanic penguins, we show that despite strong selection on body size, some environmental conditions favored larger bodies, and others favored smaller bodies, thus preventing consistent evolution in one direction or the other […] Such findings highlight that fluctuating

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Welcome Marie-Pier and Meredith!

Abrahms Lab, News /

The Abrahms Lab is growing! This fall we will have two new grad students join us in the Center: Meredith HonigPenguin Camp Meredith is interested in how species interactions shape ecological communities and wildlife population dynamics, especially in the implications of global climate change on these processes. She received a BS in Wildlife and Conservation Biology from the University of

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A fearful scourge to the penguin colonies: Southern giant petrel (Macronectes giganteus) predation on living Magellanic penguins (Spheniscus magellanicus) may be more common than assumed

Boersma Lab, Papers /

Authors: Dr. Eric Wagner, Dr. Ginger Rebstock and Dr. P Dee BoersmaJournal: Marine Ecology Press SeriesDOI: https://doi.org/10.1002/ece3.11258 Excerpt from abstract: Southern giant petrels (Macronectes giganteus) are important consumers that range across the oceans throughout the southern hemisphere […] Here we describe a predation attempt by a trio of southern giant petrels on a molting adult Magellanic penguin (Spheniscus magellanicus) at

A fearful scourge to the penguin colonies: Southern giant petrel (Macronectes giganteus) predation on living Magellanic penguins (Spheniscus magellanicus) may be more common than assumed Read More »

Dr. Dee Boersma will be a playable character in new board game Waddle Waddle

Boersma Lab, News /

That’s right- Dee will be featured in a board game! Joining her are Dr. Pablo “Popi” Boroboroglu, Dr. Heather Lynch, Dr. Lloyd Spencer Davis, Dylan deNapoli, and Dr. Katrin Ludynia. Get a $5 discount on your own copy of Waddle Waddle by signing up for updates on their GameFound site. Here’s what Brush-Tail Games said about adding Dee to the

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Sex-specific migratory behavior in a marine predator results in higher risks to females

Boersma Lab, Papers /

Metadata Authors: Dr. Ginger Rebstock and Dr. P Dee BoersmaJournal: Marine Ecology Press SeriesDOI: https://doi.org/10.3354/meps14476 Summary Summary written by Sofia Denkovski Protecting Migratory Species Sexual Segregation of Magellanic Penguins Effects of sex-biased distribution on females What does this tell us?

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Field updates: Argentina, September 2023

Boersma Lab, Updates from the Field /

Written by Dr. Dee Boersma The ongoing pinniped (seals and walruses) die-off on Peninsula Valdés is catastrophic. Our contacts in Argentina–two local veterinarians (Marci Uhart and Ralph Vanstreels), and Claudia Campagna of WCS–tell us that hundreds and potentially thousands of sea lions and elephant seals have died. Avian flu (more widely known as bird flu) has devastated seabird populations throughout

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Changing course: Relocating commercial tanker lanes significantly reduces threat of chronic oiling for a top marine predator

Boersma Lab, Papers /

Authors: Eric L. Wagner, Esteban Frere, P. Dee BoersmaJournal: Marine Pollution BulletinDOI: 10.1016/j.marpolbul.2023.11 Photo credit: National Ocean Service Image Gallery Summary Summary written by Sofia Denkovski Argentinian oil and effects on seabirds Surveys from 1982-1990 suggested more than 40,000 penguins died per year in Chubut and Santa Cruz from chronic oiling. This was hypothesized to be due to the colonies’

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