Biological Invasions

, Volume 7, Issue 4, pp 699–709 | Cite as

Dispersal of non-native plants by introduced bison in an island ecosystem

  • J. M. Constible
  • R. A. Sweitzer
  • D. H. Van Vuren
  • P. T. Schuyler
  • D. A. Knapp


An understanding of the mechanisms of seed dispersal is critical to effectively managing populations of non-native plants. We investigated whether introduced bison on Santa Catalina Island, California, have the potential to spread non-native plants through the shedding of clumps of seed-laden hair and/or ingesting and later excreting seeds. We collected clumps of hair shaved from bison during a roundup and dislodged by wallowing activity. Greenhouse and field trials were used to test for seed viability and persistence of hair clumps in wallows. In addition to trials with bison hair, we collected samples of bison dung and tested for seed germination in a greenhouse. The majority of seeds extracted from bison hair clumps were of non-native forbs. There was a significant positive relationship between the size of hair clumps and the number of seeds extracted from the clumps, suggesting that managing the introduced bison population at a lower level will help minimize the spread of non-native plants by the species. Seeds of non-native plants were capable of germinating under conditions similar to those on Santa Catalina Island. Clumps of bison hair persisted in wallows, but did not remain intact and lost nearly 40% of their original mass. The number of germinable seeds contained in bison dung was low: 18 seeds germinated from 6 of 18 dung samples. Introduced bison appear to facilitate the dispersal of non-native plants over native plants on Santa Catalina Island. Our study suggests that a comprehensive strategy to control non-native plants must involve the management of the animal agents of plant dispersal.


Bison bison endozoochory epizoochory invasive plant management non-native herbivores seed dispersal 


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  1. Andrews, TS 1995Dispersal of seeds of giant Sporobolus spp. after ingestion by grazing cattleAustralian Journal of Experimental Agriculture35353356CrossRefGoogle Scholar
  2. Bakker, JP, Poschlod, P, Strykstra, J, Bekker, RM, Thompson, K 1996Seed banks and seed dispersal: important topics in restoration ecologyActa Botanica Neerlandica45461490Google Scholar
  3. Bekker, RM, Verweij, GL, Bakker, JP, Fresco, LFM 2000Soil seed bank dynamics in hayfield successionJournal of Ecology88594607CrossRefGoogle Scholar
  4. Berger, J, Cunningham, C 1994Bison: Mating and Conservation in Small PopulationsColumbia University PressNew York330Google Scholar
  5. Bossard, CC 1991The role of habitat disturbance, seed predation, and ant dispersal on establishment of the exotic shrub Cytisus scoparius in CaliforniaAmerican Midland Naturalist126113Google Scholar
  6. Byers, JE, Reichard, S, Randall, JM, Parker, IM, Smith, CS, Lonsdale, WM, Atkinson, IAE, Seastedt, TR, Williamson, M, Chornesky, E, Hayes, D 2002Directing research to reduce the impacts of nonindigenous speciesConservation Biology16630640CrossRefGoogle Scholar
  7. Cain, ML, Milligan, BG, Strand, AE 2000Long-distance seed dispersal in plant populationsAmerican Journal of Botany8712171227PubMedGoogle Scholar
  8. Campbell, JE, Gibson, DJ 2001The effect of seeds of exotic species transported via horse dung on vegetation along trail corridorsPlant Ecology1572335CrossRefGoogle Scholar
  9. Castillo-Flores, AA, Calvo-Irabien, LM 2003Animal dispersal of two secondary-vegetation herbs into the evergreen rain forest of south-eastern MexicoJournal of Tropical Ecology19271278CrossRefGoogle Scholar
  10. Coppedge, BR, Fuhlendorf, SD, Engle, DM, Carter, BJ, Shaw, JH 1999Grassland soil depressions: relict bison wallows or inherent landscape heterogeneity?American Midland Naturalist142382392Google Scholar
  11. Crooks, JA 2002Characterizing ecosystem-level consequences of biological invasions: the role of ecosystem engineersOikos97153166CrossRefGoogle Scholar
  12. D’Antonio, CM, Vitousek, PM 1992Biological invasions by exotic grasses, the grass/fire cycle, and global changeAnnual Review of Ecology and Systematics236387Google Scholar
  13. Fagan, WF, Lewis, MA, Neubert, MG, Driessche, P 2002Invasion theory and biological controlEcology Letters5148157CrossRefGoogle Scholar
  14. Gallet, C, Pellissier, F 2001Allelopathy in forest ecosystemsRevue Forestiere Francaise54567576Google Scholar
  15. Godoy, G, Vega, J, Pitty, A 1995The type of tillage affects the flora and the vertical distribution in a weed seed bankCEIBA36217229Google Scholar
  16. Gordon, DR, Welker, JM, Menke, JW, Rice, KJ 1989Competition for soil water between annual plants and blue oak (Quercus douglasii) seedlingsOecologia79533541CrossRefGoogle Scholar
  17. Hickman, JC. eds. 1993The Jepson Manual: Higher Plants of CaliforniaUniversity of California PressBerkeley, CA1400Google Scholar
  18. Hobbs, RJ, Huenneke, LF 1992Disturbance, diversity, and invasion: Implications for conservationConservation Biology6324337CrossRefGoogle Scholar
  19. International Seed Testing Association1985International rules for seed testing: Annexes 1985Seed Science and Technology13356513Google Scholar
  20. Jackson, LE 1985Ecological origins of California’s Mediterranean grassesJournal of Biogeography12349361Google Scholar
  21. Junak, S, Ayers, T, Scott, R, Wilken, D, Young, D 1995A Flora of Santa Cruz IslandSanta Barbara Botanic GardenSanta Barbara, CA397Google Scholar
  22. Keith, LD 2002California island assesses impact of bison boomThe Sunday OregonianPortland, OR17 February 2002Google Scholar
  23. Kiviniemi, K, Eriksson, O 1999Dispersal, recruitment and site occupancy of grassland plants in fragmented habitatsOikos86241253Google Scholar
  24. Kiviniemi, K, Telenius, A 1998Experiments on adhesive dispersal by wood mouse: seed shadows and dispersal distances of 13 plant species from cultivated areas in southern SwedenEcography21108116Google Scholar
  25. Knapp, AK, Blair, JM, Briggs, JM, Collins, SL, Hartnett, DC, Johnson, LC, Towne, EG 1999The keystone role of bison in North American tallgrass prairieBioscience493950Google Scholar
  26. Knapp DA (2002) The status of island scrub oak (Quercus pacifica) on Catalina Island, California. In: Standiford RB, McCreary D and Purcell KL (eds) Proceedings of the Fifth Symposium on Oak Woodlands: Oaks in California’s Changing Landscape. USDA Forest Service General Technical Report PSW-GTR-184Google Scholar
  27. Kotanen, PM 1997Effects of experimental soil disturbance on revegetation by natives and exotics in coastal Californian meadowsJournal of Applied Ecology34631644Google Scholar
  28. Laughlin, DC 2003Geographic distribution and dispersal mechanisms of Bouteloua curtipendula in the Appalachian MountainsAmerican Midland Naturalist149268281Google Scholar
  29. Lepart, J., Debussche, M. 1991Invasion processes as related to succession and disturbanceGroves, RH.DiCastri, F. eds. Biogeography of Mediterranean InvasionsCambridge University PressCambridge, UK159178Google Scholar
  30. Liddle, MJ, Elgar, MA 1984Multiple pathways in diaspore dispersal, exemplified by studies of Noogoora Burr (Xanthium occidentale Bertol., Compositae)Botanical Journal of the Linnean Society88303315Google Scholar
  31. Lott, DF, Minta, SC 1983Random individual association and social group instability in American bison (Bison bison)Z. Tierpsychol61153172Google Scholar
  32. Mack, RN, Simberloff, D, Lonsdale, WM, Evans, H, Clout, M, Bazzaz, FA 2000Biotic invasions: causes, epidemiology, global consequences, and controlEcological Applications10689710Google Scholar
  33. Malo, JE, Suárez, F 1995aHerbivorous mammals as seed dispersers in a Mediterranean dehesaOecologia104246255CrossRefGoogle Scholar
  34. Malo, JE, Suárez, F 1995bCattle dung and the fate of Biserrula pelecinus L. (Leguminosae) in a Mediterranean pasture: seed dispersal, germination, and recruitmentBotanical Journal of the Linnean Society118139148CrossRefGoogle Scholar
  35. Malo, JE, Suárez, F 1997Dispersal mechanisms and transcontinental naturalization proneness among Mediterranean herbaceous speciesJournal of Biogeography24391294CrossRefGoogle Scholar
  36. Marambe, B, Nagaoka, T, Ando, T 1993Identification and biological activity of germination-inhibiting long-chain fatty acids in animal-waste compostsPlant Cell Physiology34605612PubMedGoogle Scholar
  37. Masters, RA, Sheley, RL 2001Principles and practices for managing rangeland invasive plantsJournal of Range Management54502517Google Scholar
  38. McHugh, T 1958Social behavior of the American Buffalo (Bison bison bison)Zoologica43141Google Scholar
  39. McMillan, BR, Cottam, MR, Kaufman, DW 2002Wallowing behavior of American Bison (Bos bison) in tallgrass prairie: an examination of alternate explanationsAmerican Midland Naturalist144159167Google Scholar
  40. Mecoy, L 2002Island of the brown bisonThe Sacramento BeeSacramento, CA3 November 2002Google Scholar
  41. Minnich, RA. 1980Vegetation of Santa Cruz and Santa Catalina IslandsPower, DM. eds. The California Islands: Proceedings of a Multidisciplinary SymposiumSanta Barbara Museum of Natural HistorySanta Barbara, CA123137Google Scholar
  42. National Research Council (2002) Predicting Invasions of Nonindigenous Plants and Plant Pests. Committee on the Scientific Basis for Predicting the Invasive Potential of Nonindigenous Plants and Plant Pests in the United States. National Academy Press, Washington, DC, 194 ppGoogle Scholar
  43. Olson, BE. 1999aImpacts of noxious weeds on ecologic and economic systemsSheley, RL.Petroff, JK. eds. Biology and Management of Noxious Rangeland WeedsOregon State University PressCorvallis, OR418Google Scholar
  44. Olson, BE. 1999bGrazing and weedsSheley, RL.Petroff, JK. eds. Biology and Management of Noxious Rangeland WeedsOregon State University PressCorvallis, OR8596Google Scholar
  45. Polley, HW, Collins, SL 1984Relationships of vegetation and environment in buffalo wallowsAmerican Midland Naturalist112178186Google Scholar
  46. Polley, HW, Wallace, LL 1986The relationship of plant species heterogeneity to soil variation in buffalo wallowsSouthwestern Naturalist31493501Google Scholar
  47. Radford, IJ, Nicholas, DM, Brown, JR, Kriticos, DJ 2001Paddock-scale patterns of seed production and dispersal in the invasive shrub Acacia niltotica (Mimosaceae) in northern Australian rangelandsAustral Ecology26338348CrossRefGoogle Scholar
  48. Radosevich, SR, Stubbs, MM, Ghersa, CM 2003Plant invasions – process and patternsWeed Science51254259Google Scholar
  49. Reynolds, HW, Glaholt, RD., Hawley, AWL. 1982Bison: Bison bisonChapman, JA.Feldhamer, GA. eds. Wild Mammals of North America: Biology, Management, EconomicsJohn Hopkins University PressBaltimore, MD9721006Google Scholar
  50. Russi, L, Cocks, PS, Roberts, EH 1992Seed bank dynamics in a Mediterranean grasslandJournal of Applied Ecology29763771Google Scholar
  51. Salisbury, FB., Ross, CW. 1992Plant Physiology4Wadsworth Publishing CompanyBelmont, CA682Google Scholar
  52. Santa Catalina Island Conservancy (2002) Rainfall data.␣Retrieved from on 28 December 2002Google Scholar
  53. Schiffman, PM. 1997Animal-mediated dispersal and disturbance: driving forces behind alien plant naturalizationLuken, JOThieret, JW. eds. Assessment and Management of Plant InvasionsSpringer-VerlagNew York8794Google Scholar
  54. Schoenherr, AA, Feldmeth, CR., Emerson, MJ. 1999Natural History of the Islands of CaliforniaUniversity of California PressBerkeley, CA491Google Scholar
  55. Schupp, EW 1993Quantity, quality and the effectiveness of seed dispersal by animalsVegetatio107/1081529Google Scholar
  56. Schuyler, PT, Garcelon, DK., Escover, S. 2002Eradication of feral pigs (Sus scrofa) on Santa Catalina Island, California, USAVietch, CR.Clout, MN. eds. Turning the Tide: The Eradication of Invasive Species. IUCN SSC Invasive Species Specialist GroupIUCN, GlandSwitzerland and Cambridge, UK274286Google Scholar
  57. Seabloom, EW, Harpole, WS, Reichman, O, Tilman, D 2003Invasion, competitive dominance, and resource use by exotic and native California grassland speciesProceedings of the National Academy of Science1001338413389CrossRefGoogle Scholar
  58. Smith, CE 1976A Flora of the Santa Barbara Region, CaliforniaSanta Barbara Museum of Natural HistorySanta Barbara, CA331Google Scholar
  59. Sorenson, AE 1986Seed dispersal by adhesionAnnual Review of Ecology and Systematics17443463CrossRefGoogle Scholar
  60. Souto, XC, Bolano, JC, Gonzalez, L, Reigosa, MJ 2001Allelopathic effects of tree species on some soil microbial populations and herbaceous plantsBiologia Plantarum44269275CrossRefGoogle Scholar
  61. Springer, TL, Dewald, CL, Aiken, GE 2001Seed germination and dormancy in eastern gamagrassCrop Science4119061910Google Scholar
  62. Stratton L (2002) Oak restoration trials: Santa Catalina Island. In: Standiford RB, McCreary D, and Purcell KL (eds) Proceedings of the Fifth Symposium on Oak Woodlands: Oaks in California’s Changing Landscape. USDA Forest Service General Technical Report PSW-GTR-184Google Scholar
  63. Stromberg, MR, Griffin, JR 1996Long-term patterns in coastal California grasslands in relation to cultivation, gophers, and grazingEcological Applications611891211Google Scholar
  64. Thorne, RF 1967A flora of Santa Catalina IslandCalifornia. Aliso6177Google Scholar
  65. Trammell, MA, Butler, JL 1995Effects of exotic plants on native ungulate use of habitatJournal of Wildlife Management59808816Google Scholar
  66. Weaver, SE, Lechowicz, MJ 1982The biology of Canadian weeds. 56. Xanthium strumarium LCanadian Journal of Plant Science63211225Google Scholar
  67. Welch, D 1985Studies in the grazing of heather moorland in north-east Scotland. IV. Seed dispersal and plant establishment in dungJournal of Applied Ecology22461472Google Scholar
  68. Wenny, DG 2001Advantages of seed dispersal: a re-evaluation of directed dispersalEvolutionary Ecology Research35174Google Scholar
  69. Williamson, M 1996Biological InvasionsChapman HallLondon, UKGoogle Scholar
  70. With, KA 2002The landscape biology of invasive spreadConservation Biology1611921203CrossRefGoogle Scholar
  71. Van Vuren, DH 2001Spatial relations of American bison (Bison bison) and domestic cattle in a montane environmentAnimal Biodiversity and Conservation24117124Google Scholar
  72. Zar, JH 1996Biostatistical Analysis4Prentice-HallUpper Saddle River, NJ918Google Scholar
  73. Zavaleta, ES, Hobbs, RJ, Mooney, HA 2001Viewing invasive species removal in a whole-ecosystem contextTrends in Ecology and Evolution16454459CrossRefGoogle Scholar

Copyright information

© Springer 2005

Authors and Affiliations

  • J. M. Constible
    • 1
  • R. A. Sweitzer
    • 1
  • D. H. Van Vuren
    • 2
  • P. T. Schuyler
    • 3
  • D. A. Knapp
    • 3
  1. 1.Department of BiologyUniversity of North DakotaGrand ForksUSA
  2. 2.Department of Wildlife, Fish, and Conservation BiologyUniversity of CaliforniaDavisUSA
  3. 3.Santa Catalina Island ConservancyAvalonUSA

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