Be sure to check out Eric Wagner’s newest essay for The Last Word On Nothing, called “Snapshot: The Penguins at Twilight” ! Featured image photo credit: Eric Wagner
Eric Wagner’s newest essay – “Snapshot: The Penguins at Twilight” Read More »
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 on a sample of foot colors.” Authors: Ginger Rebstock,
Foot darkening with age in Spheniscus penguins: applications and functions Read More »
“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 selection can be driven by environmental variability, and these processes could eliminate the possibility of evolutionary rescue
Thanks to the generous support of Zoo Augsburg in Germany, Dr. Eric Wagner and Katie Holt were able to return to Punta Tombo for a couple of weeks in April. There, they put twenty satellite tags on penguins—ten females and ten males—that were about to start their post-breeding migration. As of today 18 satellite tags are still transmitting to our
Field updates: Argentina, April 2024 Read More »
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
Welcome Marie-Pier and Meredith! Read More »
We continued our Punta Tombo field season this winter with graduate student Erik Johansson, former undergrad lab member Chloe Rabinowitz, and program coordinator Kalyna Durbak staying on site from January 12 through February 21. Our goal for this trip was to attach GTA* and GPS tags on adult penguins who were actively feeding chicks in order to log their foraging
Field Updates: Tombo Jan-Feb 2024 Read More »
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
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
Dr. Dee Boersma will be a playable character in new board game Waddle Waddle Read More »
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?
Sex-specific migratory behavior in a marine predator results in higher risks to females Read More »
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
Field updates: Argentina, September 2023 Read More »
