Patch occupancy of stream fauna across a land cover gradient in the southern Appalachians, USA Public Deposited

http://ir.library.oregonstate.edu/concern/articles/8623j0380

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 published article is copyrighted by Springer and can be found at:  http://link.springer.com/journal/10750

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  • We modeled patch occupancy to examine factors that best predicted the prevalence of four functionally important focal stream consumers (Tallaperla spp., Cambarus spp., Pleurocera proxima, and Cottus bairdi) among 37 reaches within the Little Tennessee River basin of the southern Appalachian Mountains, USA. We compared 34 models of patch occupancy to examine the association of catchment and reach scale factors that varied as a result of converting forest to agricultural or urban land use. Occupancy of our taxa was linked to parameters reflecting both catchment and reach extent characteristics. At the catchment level, forest cover or its conversion to agriculture was a major determinant of occupancy for all four taxa. Patch occupancies of Tallaperla, Cambarus, and C. bairdi were positively, and Pleurocera negatively, correlated with forest cover. Secondarily at the reach level, local availability of large woody debris was important for Cambarus, availability of large cobble substrate was important for C. bairdi, and stream calcium concentration was important for P. proxima. Our results show the abundance of stream organisms was determined by the taxon-dependent interplay between catchment- and reach-level factors.
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  • Frisch, J. R., Peterson, J. T., Cecala, K. K., Maerz, J. C., Jackson, C. R., Gragson, T. L., & Pringle, C. M. (2016). Patch occupancy of stream fauna across a land cover gradient in the southern Appalachians, USA. Hydrobiologia, 773(1), 163-175. doi:10.1007/s10750-016-2695-9
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-06-20T16:19:50Z (GMT) No. of bitstreams: 1 FrischPatchOccupancyStream.pdf: 663374 bytes, checksum: 497bb0953144bdcb7016d53e8ae7edaa (MD5)
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-06-20T16:19:17Z No. of bitstreams: 1 FrischPatchOccupancyStream.pdf: 663374 bytes, checksum: 497bb0953144bdcb7016d53e8ae7edaa (MD5)
  • description.provenance : Made available in DSpace on 2016-06-20T16:19:50Z (GMT). No. of bitstreams: 1 FrischPatchOccupancyStream.pdf: 663374 bytes, checksum: 497bb0953144bdcb7016d53e8ae7edaa (MD5) Previous issue date: 2016-06

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