Resource waves: phenological diversity enhances foraging opportunities for mobile consumers Public Deposited

http://ir.library.oregonstate.edu/concern/articles/kp78gj25c

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article is copyrighted by the Ecological Society of America and published by John Wiley & Sons, Inc. It can be found at:  http://esajournals.onlinelibrary.wiley.com/hub/journal/10.1002/%28ISSN%291939-9170/

Additional supporting information may be found in the online version of this article at  http://onlinelibrary.wiley.com/ doi/10.1890/15-0554.1/suppinfo

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  • Time can be a limiting constraint for consumers, particularly when resource phenology mediates foraging opportunity. Though a large body of research has explored how resource phenology influences trophic interactions, this work has focused on the topics of trophic mismatch or predator swamping, which typically occur over short periods, at small spatial extents or coarse resolutions. In contrast many consumers integrate across landscape heterogeneity in resource phenology, moving to track ephemeral food sources that propagate across space as resource waves. Here we provide a conceptual framework to advance the study of phenological diversity and resource waves. We define resource waves, review evidence of their importance in recent case studies, and demonstrate their broader ecological significance with a simulation model. We found that consumers ranging from fig wasps (Chalcidoidea) to grizzly bears (Ursus arctos) exploit resource waves, integrating across phenological diversity to make resource aggregates available for much longer than their component parts. In model simulations, phenological diversity was often more important to consumer energy gain than resource abundance per se. Current ecosystem-based management assumes that species abundance mediates the strength of trophic interactions. Our results challenge this assumption and highlight new opportunities for conservation and management. Resource waves are an emergent property of consumer– resource interactions and are broadly significant in ecology and conservation
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  • description.peerreviewnotes : Armstrong, J. B., Takimoto, G., Schindler, D. E., Hayes, M. M., & Kauffman, M. J. (2016). Resource waves: phenological diversity enhances foraging opportunities for mobile consumers. Ecology, 97(5), 1099-1112. doi:10.1890/15-0554.1
  • description.provenance : Made available in DSpace on 2016-06-15T14:19:05Z (GMT). No. of bitstreams: 1 ArmstrongResourceWavesPhenological.pdf: 423218 bytes, checksum: c4ec923cefcc39cacc03b0d1c24408cd (MD5) Previous issue date: 2016-05
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-06-15T14:19:05Z (GMT) No. of bitstreams: 1 ArmstrongResourceWavesPhenological.pdf: 423218 bytes, checksum: c4ec923cefcc39cacc03b0d1c24408cd (MD5)
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-06-15T14:18:34Z No. of bitstreams: 1 ArmstrongResourceWavesPhenological.pdf: 423218 bytes, checksum: c4ec923cefcc39cacc03b0d1c24408cd (MD5)

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