Journal
ORNITHOLOGY
Volume 139, Issue 2, Pages -Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/ornithology/ukab086
Keywords
atmosphere; climate change; comparative biology; cognition; conservation; evolution; phylogeography; shorebirds
Categories
Funding
- Davidand Lucile Packard Foundation
- WWF-Netherlands
- BirdLife Netherlands
- NWONetherlands Organization for Scientific Research, U.S. Fish and Wildlife Service
- U.S. Geological Survey
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The Pacific Basin provides unique opportunities for studying bird migratory behavior, especially for species like shorebirds. Ancient Polynesians observed the seasonal passage of these birds and incorporated it into their navigation systems. Modern research and tracking technology have revealed the enormity of the individual nonstop flights of these birds, raising questions about their capabilities and evolutionary development. Advances in theory and technology have expanded the field of movement ecology.
The Pacific Basin, by virtue of its vastness and its complex aeroscape, provides unique opportunities to address questions about the behavioral and physiological capabilities and mechanisms through which birds can complete spectacular flights. No longer is the Pacific seen just as a formidable barrier between terrestrial habitats in the north and the south, but rather as a gateway for specialized species, such as shorebirds, to make a living on hemispherically distributed seasonal resources. This recent change in perspective is dramatic, and the research that underpins it has presented new opportunities to learn about phenomena that often challenge a sense of normal. Ancient Polynesians were aware of the seasonal passage of shorebirds and other landbirds over the Pacific Ocean, incorporating these observations into their navigational tool kit as they explored and colonized the Pacific. Some ten centuries later, systematic visual observations and tracking technology have revealed much about movement of these shorebirds, especially the enormity of their individual nonstop flights. This invites a broad suite of questions, often requiring comparative studies with bird migration across other ocean basins, or across continents. For example, how do birds manage many days of nonstop exercise apparently without sleep? What mechanisms explain birds acting as if they possess a Global Positioning System? How do such extreme migrations evolve? Through advances in both theory and tracking technology, biologists are poised to greatly expand the horizons of movement ecology as we know it. In this integrative review, we present a series of intriguing questions about trans-Pacific migrant shorebirds and summarize recent advances in knowledge about migratory behavior operating at temporal scales ranging from immediate decisions during a single flight, to adaptive learning throughout a lifetime, to evolutionary development of migratory pathways. Recent advances in this realm should stimulate future research across the globe and across a broad array of disciplines.
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