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Volumn 30, Issue 3, 2010, Pages 475-487

Predicting avian abundance within and across tidal marshes using fine-scale vegetation and geomorphic metrics

Author keywords

Aerial imagery; Birds; Remote sensing; Spatial models; Wetland restoration

Indexed keywords

ABUNDANCE; AERIAL PHOTOGRAPH; GEOMORPHOLOGY; MARSH; PASSERINE; PIXEL; REMOTE SENSING; RESTORATION ECOLOGY; SATELLITE DATA; VEGETATION MAPPING;

EID: 77957146008     PISSN: 02775212     EISSN: 19436246     Source Type: Journal    
DOI: 10.1007/s13157-010-0052-8     Document Type: Article
Times cited : (11)

References (60)
  • 1
    • 34247247275 scopus 로고    scopus 로고
    • Linking occurrence and fitness to persistence: Habitat-based approach for endangered greater sage-grouse
    • 10.1890/05-1871 17489256
    • CL Aldridge MS Boyce 2007 Linking occurrence and fitness to persistence: Habitat-based approach for endangered greater sage-grouse Ecological Applications 17 508 526 10.1890/05-1871 17489256
    • (2007) Ecological Applications , vol.17 , pp. 508-526
    • Aldridge, C.L.1    Boyce, M.S.2
  • 2
    • 0018550910 scopus 로고
    • History, landforms, and vegetation of the estuary's tidal marshes
    • T.J. Conomos (eds). American Association for the Advancement of Science San Francisco
    • Atwater BF, Conrad SG, Dowden JN, Hedel CW, MacDonald RL, Savage W (1979) History, landforms, and vegetation of the estuary's tidal marshes. In: Conomos TJ (ed) San Francisco Bay: The urbanized estuary. American Association for the Advancement of Science, San Francisco, pp 347-386
    • (1979) San Francisco Bay: The Urbanized Estuary , pp. 347-386
    • Atwater, B.F.1    Conrad, S.G.2    Dowden, J.N.3    Hedel, C.W.4    MacDonald, R.L.5    Savage, W.6
  • 3
    • 0010370077 scopus 로고
    • Salt water tolerance and the distribution of South San Francisco Bay Song Sparrows
    • 10.2307/1368516
    • MP Basham LR Mewaldt 1987 Salt water tolerance and the distribution of South San Francisco Bay Song Sparrows Condor 89 697 709 10.2307/1368516
    • (1987) Condor , vol.89 , pp. 697-709
    • Basham, M.P.1    Mewaldt, L.R.2
  • 5
    • 0036718644 scopus 로고    scopus 로고
    • Modeling habitat change in salt marshes after tidal restoration
    • 10.1046/j.1526-100X.2002.02032.x
    • RMJ Boumans DM Burdick M Dionne 2002 Modeling habitat change in salt marshes after tidal restoration Restoration Ecology 10 543 555 10.1046/j.1526-100X.2002.02032.x
    • (2002) Restoration Ecology , vol.10 , pp. 543-555
    • Boumans, R.M.J.1    Burdick, D.M.2    Dionne, M.3
  • 6
    • 34247327317 scopus 로고    scopus 로고
    • Updating bird species distribution at large spatial scales: Applications of habitat modelling to data from long-term monitoring programs
    • 10.1111/j.1472-4642.2007.00339.x
    • L Brotons S Herrando M Pla 2007 Updating bird species distribution at large spatial scales: Applications of habitat modelling to data from long-term monitoring programs Diversity and Distributions 13 276 288 10.1111/j.1472-4642. 2007.00339.x
    • (2007) Diversity and Distributions , vol.13 , pp. 276-288
    • Brotons, L.1    Herrando, S.2    Pla, M.3
  • 8
    • 55949129349 scopus 로고    scopus 로고
    • Status and habitat use of the California Black Rail in the southwestern USA
    • 10.1672/0277-5212(2007)27[987:SAHUOT]2.0.CO;2
    • CJ Conway C Sulzman 2007 Status and habitat use of the California Black Rail in the southwestern USA Wetlands 27 987 998 10.1672/0277-5212(2007)27[987: SAHUOT]2.0.CO;2
    • (2007) Wetlands , vol.27 , pp. 987-998
    • Conway, C.J.1    Sulzman, C.2
  • 9
    • 0004028866 scopus 로고
    • U.S. Department of the Interior, Fish and Wildlife Service, Washington, DC
    • Dahl TE (1990) Wetlands losses in the United States 1780's to 1980's. U.S. Department of the Interior, Fish and Wildlife Service, Washington, DC. http://www.npwrc.usgs.gov/resource/wetlands/wetloss/index.htm. Accessed 23 Nov 2009
    • (1990) Wetlands Losses in the United States 1780's to 1980's
    • Dahl, T.E.1
  • 12
    • 0032938252 scopus 로고    scopus 로고
    • Geostatistics and remote sensing using NOAA-AVHRR satellite imagery as predictive tools in tick distribution and habitat suitability estimations for Boophilus microplus (Acari: Ixodidae) in South America
    • 10.1016/S0304-4017(98)00238-6 1:STN:280:DyaK1M7jtlygsg%3D%3D 9950331
    • A Estrada-Pena 1999 Geostatistics and remote sensing using NOAA-AVHRR satellite imagery as predictive tools in tick distribution and habitat suitability estimations for Boophilus microplus (Acari: Ixodidae) in South America Veterinary Parasitology 81 73 82 10.1016/S0304-4017(98)00238-6 1:STN:280:DyaK1M7jtlygsg%3D%3D 9950331
    • (1999) Veterinary Parasitology , vol.81 , pp. 73-82
    • Estrada-Pena, A.1
  • 13
    • 33745629040 scopus 로고    scopus 로고
    • Abundance, species richness and energy availability in the North American avifauna
    • 10.1111/j.1466-822X.2006.00228.x
    • KL Evans NA James KJ Gaston 2006 Abundance, species richness and energy availability in the North American avifauna Global Ecology and Biogeography 15 372 385 10.1111/j.1466-822X.2006.00228.x
    • (2006) Global Ecology and Biogeography , vol.15 , pp. 372-385
    • Evans, K.L.1    James, N.A.2    Gaston, K.J.3
  • 14
    • 77249168134 scopus 로고
    • Predation on black rails during high tides in salt marshes
    • 10.2307/1367769
    • J Evens GW Page 1986 Predation on black rails during high tides in salt marshes Condor 88 107 109 10.2307/1367769
    • (1986) Condor , vol.88 , pp. 107-109
    • Evens, J.1    Page, G.W.2
  • 15
    • 0000101250 scopus 로고
    • Distribution, relative abundance, and status of the California black rail in western North America
    • 10.2307/3247730
    • J Evens GW Page SA Laymon RW Stallcup 1991 Distribution, relative abundance, and status of the California black rail in western North America Condor 93 952 966 10.2307/3247730
    • (1991) Condor , vol.93 , pp. 952-966
    • Evens, J.1    Page, G.W.2    Laymon, S.A.3    Stallcup, R.W.4
  • 17
    • 0344449397 scopus 로고
    • Adaptations to tidal marshes in breeding populations of the swamp sparrow
    • 10.2307/1368236
    • R Greenberg S Droege 1990 Adaptations to tidal marshes in breeding populations of the swamp sparrow Condor 92 393 404 10.2307/1368236
    • (1990) Condor , vol.92 , pp. 393-404
    • Greenberg, R.1    Droege, S.2
  • 19
    • 33746912692 scopus 로고    scopus 로고
    • Tidal marshes: A global perspective on the evolution and conservation of their terrestrial vertebrates
    • 10.1641/0006-3568 (2006)56[675:TMAGPO]2.0.CO;2
    • R Greenberg J Maldonado S Droege MV McDonald 2006 Tidal marshes: A global perspective on the evolution and conservation of their terrestrial vertebrates Bioscience 56 675 685 10.1641/0006-3568(2006)56[675:TMAGPO]2.0.CO;2
    • (2006) Bioscience , vol.56 , pp. 675-685
    • Greenberg, R.1    Maldonado, J.2    Droege, S.3    McDonald, M.V.4
  • 22
    • 25144433421 scopus 로고    scopus 로고
    • Salt marsh vegetation recovery at salt hay farm wetland restoration sites on Delaware Bay
    • 10.1016/j.ecoleng.2005.04.011
    • RL Hinkle WJ Mitsch 2005 Salt marsh vegetation recovery at salt hay farm wetland restoration sites on Delaware Bay Ecological Engineering 25 240 251 10.1016/j.ecoleng.2005.04.011
    • (2005) Ecological Engineering , vol.25 , pp. 240-251
    • Hinkle, R.L.1    Mitsch, W.J.2
  • 23
    • 0041629027 scopus 로고    scopus 로고
    • Hyperspectral image data for mapping wetland vegetation
    • 10.1672/18-20
    • A Hirano M Madden R Welch 2003 Hyperspectral image data for mapping wetland vegetation Wetlands 23 436 448 10.1672/18-20
    • (2003) Wetlands , vol.23 , pp. 436-448
    • Hirano, A.1    Madden, M.2    Welch, R.3
  • 24
    • 3843074126 scopus 로고    scopus 로고
    • Species-energy relationships and habitat complexity in bird communities
    • 10.1111/j.1461-0248.2004.00630.x
    • AH Hurlbert 2004 Species-energy relationships and habitat complexity in bird communities Ecology Letters 7 714 720 10.1111/j.1461-0248.2004.00630.x
    • (2004) Ecology Letters , vol.7 , pp. 714-720
    • Hurlbert, A.H.1
  • 25
    • 77957118202 scopus 로고    scopus 로고
    • ITT Boulder, CO
    • ITT (2003) ENVI, v. 3.6. Boulder, CO
    • (2003) ENVI , vol.3-6
  • 27
    • 53149095910 scopus 로고    scopus 로고
    • Mapping salt marsh vegetation using aerial hyperspectral imagery and linear unmixing in Humboldt Bay, California
    • 10.1672/0277-5212(2007) 27[1144:MSMVUA]2.0.CO;2
    • C Judd S Steinberg F Shaughnessy G Crawford 2007 Mapping salt marsh vegetation using aerial hyperspectral imagery and linear unmixing in Humboldt Bay, California Wetlands 27 1144 1152 10.1672/0277-5212(2007)27[1144:MSMVUA]2.0. CO;2
    • (2007) Wetlands , vol.27 , pp. 1144-1152
    • Judd, C.1    Steinberg, S.2    Shaughnessy, F.3    Crawford, G.4
  • 29
    • 0037500103 scopus 로고    scopus 로고
    • From space to species: Ecological applications for remote sensing
    • 10.1016/S0169-5347(03)00071-5
    • J Kerr M Ostrovsky 2003 From space to species: Ecological applications for remote sensing Trends in Ecology and Evolution 18 299 314 10.1016/S0169-5347(03)00071-5
    • (2003) Trends in Ecology and Evolution , vol.18 , pp. 299-314
    • Kerr, J.1    Ostrovsky, M.2
  • 30
    • 4043171349 scopus 로고    scopus 로고
    • The effects of habitat resolution on models of avian diversity and distributions: A comparison of two land-cover classifications
    • 10.1023/B:LAND.0000036151.28327.01
    • JJ Lawler RJ O'Connor CT Hunsaker KB Jones TR Loveland D White 2004 The effects of habitat resolution on models of avian diversity and distributions: A comparison of two land-cover classifications Landscape Ecology 19 517 532 10.1023/B:LAND.0000036151.28327.01
    • (2004) Landscape Ecology , vol.19 , pp. 517-532
    • Lawler, J.J.1    O'Connor, R.J.2    Hunsaker, C.T.3    Jones, K.B.4    Loveland, T.R.5    White, D.6
  • 31
    • 0026490966 scopus 로고
    • Modeling survival and testing biological hypotheses using marked animals: A unified approach with case studies
    • 10.2307/2937171
    • J-D Lebreton KP Burnham J Clobert DR Anderson 1992 Modeling survival and testing biological hypotheses using marked animals: A unified approach with case studies Ecological Monographs 62 67 118 10.2307/2937171
    • (1992) Ecological Monographs , vol.62 , pp. 67-118
    • Lebreton, J.-D.1    Burnham, K.P.2    Clobert, J.3    Anderson, D.R.4
  • 32
    • 43249102416 scopus 로고    scopus 로고
    • Leica Geosystems Inc
    • Leica Geosystems Inc. (2006) ERDAS Imagine
    • (2006) ERDAS Imagine
  • 33
    • 33751243626 scopus 로고    scopus 로고
    • Factors affecting habitat use and distribution of desert mule deer in an arid environment
    • 10.2193/0091-7648 (2006)34[609:FAHUAD]2.0.CO;2
    • JP Marshal VC Belich PR Krausman ML Reed NG Andrew 2006 Factors affecting habitat use and distribution of desert mule deer in an arid environment Wildlife Society Bulletin 34 609 619 10.2193/0091-7648(2006)34[609:FAHUAD]2.0. CO;2
    • (2006) Wildlife Society Bulletin , vol.34 , pp. 609-619
    • Marshal, J.P.1    Belich, V.C.2    Krausman, P.R.3    Reed, M.L.4    Andrew, N.G.5
  • 34
    • 0000937756 scopus 로고
    • Endemic song sparrows and yellowthroats of San Francisco Bay
    • J Marshall K Dedrick 1994 Endemic song sparrows and yellowthroats of San Francisco Bay Studies in Avian Biology 15 316 327
    • (1994) Studies in Avian Biology , vol.15 , pp. 316-327
    • Marshall, J.1    Dedrick, K.2
  • 35
    • 85041150778 scopus 로고
    • FRAGSTATS: Spatial pattern analysis program for quantifying landscape structure
    • McGarigal K, Marks BJ (1995) FRAGSTATS: Spatial pattern analysis program for quantifying landscape structure. USDA Forest Service GTR PNW-351. http://www.umass.edu/landeco/research/fragstats/fragstats.html. Accessed 23 Nov 2009
    • (1995) USDA Forest Service GTR PNW-351
    • McGarigal, K.1    Marks, B.J.2
  • 36
    • 0033666509 scopus 로고    scopus 로고
    • Habitat models of bird species' distribution: An aid to the management of coastal grazing marshes
    • 10.1046/j.1365-2664.2000.00529.x
    • TP Milsom SD Langton WK Parkin S Peel JD Bishop JD Hart NP Moore 2000 Habitat models of bird species' distribution: An aid to the management of coastal grazing marshes Journal of Applied Ecology 37 706 727 10.1046/j.1365-2664.2000.00529.x
    • (2000) Journal of Applied Ecology , vol.37 , pp. 706-727
    • Milsom, T.P.1    Langton, S.D.2    Parkin, W.K.3    Peel, S.4    Bishop, J.D.5    Hart, J.D.6    Moore, N.P.7
  • 37
    • 0036718645 scopus 로고    scopus 로고
    • A monitoring protocol to assess tidal restoration of salt marshes on local and regional scales
    • 10.1046/j.1526-100X.2002.02033.x
    • HA Neckles M Dionne DM Burdick CT Roman R Buchsbaum E Hutchins 2002 A monitoring protocol to assess tidal restoration of salt marshes on local and regional scales Restoration Ecology 10 556 563 10.1046/j.1526-100X.2002.02033.x
    • (2002) Restoration Ecology , vol.10 , pp. 556-563
    • Neckles, H.A.1    Dionne, M.2    Burdick, D.M.3    Roman, C.T.4    Buchsbaum, R.5    Hutchins, E.6
  • 38
    • 0022554870 scopus 로고
    • The modification of an estuary
    • 10.1126/science.231.4738.567 17750968
    • FH Nichols JE Cloern SN Luoma DH Peterson 1986 The modification of an estuary Science 231 567 573 10.1126/science.231.4738.567 17750968
    • (1986) Science , vol.231 , pp. 567-573
    • Nichols, F.H.1    Cloern, J.E.2    Luoma, S.N.3    Peterson, D.H.4
  • 39
    • 77957117347 scopus 로고    scopus 로고
    • Tidal marsh birds of the San Francisco Bay region: Status, distribution, and conservation of five Category 2 taxa
    • Point Reyes Bird Observatory, Stinson Beach, CA
    • Nur N, Zack S, Evens J and Gardali T (1997) Tidal marsh birds of the San Francisco Bay region: Status, distribution, and conservation of five Category 2 taxa. Final draft report to National Biological Survey (now US Geological Survey). Point Reyes Bird Observatory, Stinson Beach, CA. http://www.prbo.org/ cms/docs/wetlands/tmreport1997.pdf. Accessed 23 Nov 2009
    • (1997) Final Draft Report to National Biological Survey (Now US Geological Survey)
    • Nur, N.1    Zack, S.2    Evens, J.3    Gardali, T.4
  • 40
    • 0030755543 scopus 로고    scopus 로고
    • A spatial habitat model for the marsh-breeding red-winged blackbird (Agelaius phoeniceus L.) in coastal Lake Erie wetlands
    • 10.1016/S0304-3800(97)01983-2
    • U Ozesmi WJ Mitsch 1997 A spatial habitat model for the marsh-breeding red-winged blackbird (Agelaius phoeniceus L.) in coastal Lake Erie wetlands Ecological Modelling 101 139 152 10.1016/S0304-3800(97)01983-2
    • (1997) Ecological Modelling , vol.101 , pp. 139-152
    • Ozesmi, U.1    Mitsch, W.J.2
  • 41
    • 0030316920 scopus 로고    scopus 로고
    • Monitoring wetland habitat restoration in southern California using airborne multispectral video data
    • 10.1111/j.1526-100X.1996.tb00194.x
    • S Phinn D Stow J Zedler 1996 Monitoring wetland habitat restoration in southern California using airborne multispectral video data Restoration Ecology 4 412 422 10.1111/j.1526-100X.1996.tb00194.x
    • (1996) Restoration Ecology , vol.4 , pp. 412-422
    • Phinn, S.1    Stow, D.2    Zedler, J.3
  • 42
    • 35748932852 scopus 로고    scopus 로고
    • R Development Core Team. R Foundation for Statistical Computing Vienna, Austria
    • R Development Core Team (2007) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria
    • (2007) R: A Language and Environment for Statistical Computing
  • 44
    • 0034013878 scopus 로고    scopus 로고
    • The influence of tidal channels on the distribution of salt marsh plant species in Petaluma Marsh, CA, USA
    • 10.1023/A:1009882110988
    • EW Sanderson SL Ustin TC Foin 2000 The influence of tidal channels on the distribution of salt marsh plant species in Petaluma Marsh, CA, USA Plant Ecology 146 29 41 10.1023/A:1009882110988
    • (2000) Plant Ecology , vol.146 , pp. 29-41
    • Sanderson, E.W.1    Ustin, S.L.2    Foin, T.C.3
  • 45
    • 77957161904 scopus 로고    scopus 로고
    • SFEI version 1.5b4. San Francisco Estuary Institute, Oakland, CA
    • SFEI (1998) EcoAtlas beta release, version 1.5b4. San Francisco Estuary Institute, Oakland, CA. http://www.sfei.org/ecoatlas/index.html. Accessed 2 June 2008
    • (1998) EcoAtlas Beta Release
  • 46
    • 1242321264 scopus 로고    scopus 로고
    • Urbanization and spider diversity: Influences of human modification of habitat structure and productivity
    • 10.1890/02-5341
    • E Shochat WL Stefanov MEA Whitehouse SH Faeth 2004 Urbanization and spider diversity: Influences of human modification of habitat structure and productivity Ecological Applications 14 268 280 10.1890/02-5341
    • (2004) Ecological Applications , vol.14 , pp. 268-280
    • Shochat, E.1    Stefanov, W.L.2    Whitehouse, M.E.A.3    Faeth, S.H.4
  • 49
    • 33845420617 scopus 로고    scopus 로고
    • Multiple-scale habitat relationships of tidal marsh breeding birds in the San Francisco Bay estuary
    • H Spautz N Nur D Stralberg Y Chan 2006 Multiple-scale habitat relationships of tidal marsh breeding birds in the San Francisco Bay estuary Studies in Avian Biology 32 247 269
    • (2006) Studies in Avian Biology , vol.32 , pp. 247-269
    • Spautz, H.1    Nur, N.2    Stralberg, D.3    Chan, Y.4
  • 50
    • 0033243874 scopus 로고    scopus 로고
    • Effects of temporal and environmental factors on the probability of detecting California Black Rails
    • L Spear SB Terrill C Lenihan P Delevoryas 1999 Effects of temporal and environmental factors on the probability of detecting California Black Rails Journal of Field Ornithology 70 465 480
    • (1999) Journal of Field Ornithology , vol.70 , pp. 465-480
    • Spear, L.1    Terrill, S.B.2    Lenihan, C.3    Delevoryas, P.4
  • 51
    • 0036786240 scopus 로고    scopus 로고
    • Large-scale habitat selection by agricultural steppe birds in Spain: Identifying species-habitat responses using generalized additive models
    • 10.1046/j.1365-2664.2002.00751.x
    • S Suarez-Seoane PE Osborne JC Alonso 2002 Large-scale habitat selection by agricultural steppe birds in Spain: Identifying species-habitat responses using generalized additive models Journal of Applied Ecology 39 755 771 10.1046/j.1365-2664.2002.00751.x
    • (2002) Journal of Applied Ecology , vol.39 , pp. 755-771
    • Suarez-Seoane, S.1    Osborne, P.E.2    Alonso, J.C.3
  • 52
    • 0024897596 scopus 로고
    • Landscape ecology: The effect of pattern on process
    • Turner MG (1989) Landscape ecology: The effect of pattern on process. Annual Review of Ecology and Systematics 20:171-197
    • (1989) Annual Review of Ecology and Systematics , vol.20 , pp. 171-197
    • Turner, M.G.1
  • 53
    • 0035163093 scopus 로고    scopus 로고
    • Restoration principles emerging from one of the world's largest tidal marsh restoration projects
    • 10.1023/A:1012058713910
    • MP Weinstein JM Teal JH Balletto KA Strait 2001 Restoration principles emerging from one of the world's largest tidal marsh restoration projects Wetlands Ecology and Management 9 387 407 10.1023/A:1012058713910
    • (2001) Wetlands Ecology and Management , vol.9 , pp. 387-407
    • Weinstein, M.P.1    Teal, J.M.2    Balletto, J.H.3    Strait, K.A.4
  • 54
    • 40349116286 scopus 로고    scopus 로고
    • Animal habitat quality and ecosystem functioning: Exploring seasonal patterns using NDVI
    • 10.1890/06-1870.1
    • T Wiegand J Naves MF Garbulsky N Fernandez 2008 Animal habitat quality and ecosystem functioning: Exploring seasonal patterns using NDVI Ecological Monographs 78 87 103 10.1890/06-1870.1
    • (2008) Ecological Monographs , vol.78 , pp. 87-103
    • Wiegand, T.1    Naves, J.2    Garbulsky, M.F.3    Fernandez, N.4
  • 56
    • 4944226585 scopus 로고    scopus 로고
    • Stable and efficient multiple smoothing parameter estimation for generalized additive models
    • 10.1198/016214504000000980
    • SN Wood 2004 Stable and efficient multiple smoothing parameter estimation for generalized additive models Journal of the American Statistical Association 99 673 686 10.1198/016214504000000980
    • (2004) Journal of the American Statistical Association , vol.99 , pp. 673-686
    • Wood, S.N.1
  • 58
    • 1842483410 scopus 로고    scopus 로고
    • Effects of changing scale on landscape pattern analysis: Scaling relations
    • 10.1023/B:LAND.0000021711.40074.ae
    • J Wu 2004 Effects of changing scale on landscape pattern analysis: Scaling relations Landscape Ecology 19 125 138 10.1023/B:LAND.0000021711.40074. ae
    • (2004) Landscape Ecology , vol.19 , pp. 125-138
    • Wu, J.1
  • 59
    • 0002571152 scopus 로고    scopus 로고
    • Coastal mitigation in southern California: The need for a regional restoration strategy
    • 10.2307/2269555
    • JB Zedler 1996 Coastal mitigation in southern California: The need for a regional restoration strategy Ecological Applications 6 84 93 10.2307/2269555
    • (1996) Ecological Applications , vol.6 , pp. 84-93
    • Zedler, J.B.1
  • 60
    • 0032871120 scopus 로고    scopus 로고
    • Tracking wetland restoration: Do mitigation sites follow desired trajectories?
    • 10.1046/j.1526-100X.1999.07108.x
    • JB Zedler JC Callaway 1999 Tracking wetland restoration: Do mitigation sites follow desired trajectories? Restoration Ecology 7 69 73 10.1046/j.1526-100X.1999.07108.x
    • (1999) Restoration Ecology , vol.7 , pp. 69-73
    • Zedler, J.B.1    Callaway, J.C.2


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