Dr. Eric Wagner

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

Authors: Dr. Ginger Rebstock and Dr. P Dee BoersmaJournal: Marine Ecology Press SeriesDOI: https://doi.org/10.3354/meps14476 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 the large colony at Punta Tombo, Argentina […] We suggest that living penguins—both fledglings and adults—may constitute a more seasonally significant proportion of the giant petrel diet than previously assumed, and their capture may represent a specialized predation technique.

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. Eric Wagner featured on podcast Raising Kind Humans

Dr. Eric Wagner talked with Katie Doughty, host of the podcast Raising Kind Humans, about parenting, penguins, and protecting the planet. Find the link to the podcast below, or wherever you download your other podcasts. Raising Kind Humans, episode 56 Katie also wrote a couple of children’s books starring penguins. Follow Team Kind Humans on Instagram @katie_doughty

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

Metadata Authors: Eric L. Wagner, Esteban Frere, P. Dee BoersmaJournal: Marine Pollution BulletinDOI: 10.1016/j.marpolbul.2023.11 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’ proximity to oil centers and shipping lanes. Why is oil so bad for birds? Oiled birds lose their ability to thermoregulate and can ingest the toxic oil. Penguins are especially vulnerable due to remote breeding sites and inability to fly. Changes after establishment of 1997 marine

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Should I stay or should I go: factors influencing mate retention and divorce in a colonial seabird

Authors: Eric L. Wagner, Caroline D. Cappello, P. Dee BoersmaJournal: Animal BehaviourDOI: 10.1016/j.anbehav.2022.08.002 Divorce among serially monogamous birds can lead to increased reproductive success if an individual obtains a higher-quality mate or nest site, or it can lead to lower reproductive success due to lack of pair experience or reduced breeding opportunities…

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