The political biogeography of migratory marine predators

Last modified: 
March 12, 2019 - 9:23am
Type: Journal Article
Year of publication: 2018
Date published: Mar-09-2018
Authors: Autumn-Lynn Harrison, Daniel Costa, Arliss Winship, Scott Benson, Steven Bograd, Michelle Antolos, Aaron Carlisle, Heidi Dewar, Peter Dutton, Salvador Jorgensen, Suzanne Kohin, Bruce Mate, Patrick Robinson, Kurt Schaefer, Scott Shaffer, George Shillinger, Samantha Simmons, Kevin Weng, Kristina Gjerde, Barbara Block
Journal title: Nature Ecology & Evolution

During their migrations, marine predators experience varying levels of protection and face many threats as they travel through multiple countries’ jurisdictions and across ocean basins. Some populations are declining rapidly. Contributing to such declines is a failure of some international agreements to ensure effective cooperation by the stakeholders responsible for managing species throughout their ranges, including in the high seas, a global commons. Here we use biologging data from marine predators to provide quantitative measures with great potential to inform local, national and international management efforts in the Pacific Ocean. We synthesized a large tracking data set to show how the movements and migratory phenology of 1,648 individuals representing 14 species—from leatherback turtles to white sharks—relate to the geopolitical boundaries of the Pacific Ocean throughout species’ annual cycles. Cumulatively, these species visited 86% of Pacific Ocean countries and some spent three-quarters of their annual cycles in the high seas. With our results, we offer answers to questions posed when designing international strategies for managing migratory species.

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Approximate cost to purchase or rent this item from the publisher: US $32.00

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