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Home / Equine Research Bank / PeerJ / Livestock as a potential biological control agent for an inv...
PeerJ2014; 2; e567; doi: 10.7717/peerj.567

Livestock as a potential biological control agent for an invasive wetland plant.

Abstract: Invasive species threaten biodiversity and incur costs exceeding billions of US$. Eradication efforts, however, are nearly always unsuccessful. Throughout much of North America, land managers have used expensive, and ultimately ineffective, techniques to combat invasive Phragmites australis in marshes. Here, we reveal that Phragmites may potentially be controlled by employing an affordable measure from its native European range: livestock grazing. Experimental field tests demonstrate that rotational goat grazing (where goats have no choice but to graze Phragmites) can reduce Phragmites cover from 100 to 20% and that cows and horses also readily consume this plant. These results, combined with the fact that Europeans have suppressed Phragmites through seasonal livestock grazing for 6,000 years, suggest Phragmites management can shift to include more economical and effective top-down control strategies. More generally, these findings support an emerging paradigm shift in conservation from high-cost eradication to economically sustainable control of dominant invasive species.
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Publication Date: 2014-09-23 PubMed ID: 25276502PubMed Central: PMC4178463DOI: 10.7717/peerj.567Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research article is about how the use of livestock (specifically, goats, cows and horses) for grazing can possibly control the spread of the invasive wetland plant, Phragmites australis, in an economical and effective way, instead of resorting to expensive and mostly unsuccessful eradication techniques.

Research Methodology

  • The researchers conducted experimental field tests to ascertain the following hypothesis: the rotational grazing of goats can effectively reduce the coverage of the invasive wetland plant, Phragmites australis.
  • In these tests, goats were given no other grazing alternatives aside from the target plant. Following the grazing tests, Phragmites cover was observed and noted to have dropped from 100% to a drastically reduced 20%.
  • The research also investigated the willingness and effectiveness of other livestock animals such as cows and horses to graze on the invasive plant.

Research Findings

  • From the experimental field tests, it was concluded that goats can drastically reduce the coverage of Phragmites. The forced rotational grazing decreased the plant’s dominance from a complete 100% coverage to just 20%.
  • Apart from goats, it was observed that cows and horses also readily consume the plant, presenting them as potential alternative biological control agents.
  • The study noted that this method of controlling the plant using livestock has been used in its native European range for the last 6,000 years, hence suggesting its effectiveness.

Implications of the Research

  • Based on their research findings, the authors suggest a shift in the management of Phragmites from expensive and ultimately ineffective eradication techniques to more economical and successful top-down control strategies involving the use of livestock for grazing.
  • This sustainable economic strategy is also presented as a potential approach that could be broadened to control other dominant invasive species, indicating a possible paradigm shift in conservational tactics.
  • The research demonstrates that a biological control approach using familiar and readily available agents like livestock could potentially provide an effective and cost-effective solution for controlling invasive species.
  • The practice of using livestock as a control mechanism also aligns with ecological farming and management practices, supporting biodiversity and promoting sustainable land use.

Cite This Article

APA
Silliman BR, Mozdzer T, Angelini C, Brundage JE, Esselink P, Bakker JP, Gedan KB, van de Koppel J, Baldwin AH. (2014). Livestock as a potential biological control agent for an invasive wetland plant. PeerJ, 2, e567. https://doi.org/10.7717/peerj.567

Publication

PeerJ
ISSN: 2167-8359
NlmUniqueID: 101603425
Country: United States
Language: English
Volume: 2
Pages: e567
PII: e567

Researcher Affiliations

Silliman, Brian R
  • Division of Marine Science and Conservation, Nicholas School of the Environment, Duke University , Beaufort, NC , USA.
Mozdzer, Thomas
  • Department of Biology, Bryn Mawr College , Bryn Mawr, PA , USA.
Angelini, Christine
  • Department of Environmental Engineering Sciences, University of Florida , Gainesville, FL , USA.
Brundage, Jennifer E
  • Department of Environmental Science and Technology, University of Maryland , College Park, MD , USA.
Esselink, Peter
  • Community and Conservation Ecology, University of Groningen , Groningen , The Netherlands ; PUCCIMAR Ecological Research and Consultancy , The Netherlands.
Bakker, Jan P
  • Community and Conservation Ecology, University of Groningen , Groningen , The Netherlands.
Gedan, Keryn B
  • Department of Biology, University of Maryland , College Park, MD , USA.
van de Koppel, Johan
  • Community and Conservation Ecology, University of Groningen , Groningen , The Netherlands ; Spatial Ecology Department, Royal Netherlands Institute for Sea Research (NIOZ) , Yerseke , The Netherlands.
Baldwin, Andrew H
  • Department of Environmental Science and Technology, University of Maryland , College Park, MD , USA.

References

This article includes 70 references
  1. Allen SE. Chemical analysis of ecological materials. 2nd edition. Oxford: Blackwell Scientific Publications; 1989. p. 368.
  2. Angradi TR, Hagan SM, Able KW. Vegetation type and the intertidal macroinvertebrate fauna of a brackish marsh: Phragmites vs. Spartina. Wetlands 2001;21:75–92.
    doi: 10.1672/0277-5212(2001)021[0075:VTATIM]2.0.CO;2google scholar: lookup
  3. Australian Research Council. The nutrient requirements of ruminant livestock. Farnham Royal: Commonwealth Agricultural Bureaux; 1980.
  4. Belovsky GE. Optimal foraging and community structure: implications for a guild of generalist grassland herbivores.. Oecologia 1986 Aug;70(1):35-52.
    doi: 10.1007/BF00377109pubmed: 28311285google scholar: lookup
  5. Bertness MD, Ewanchuk PJ, Silliman BR. Anthropogenic modification of New England salt marsh landscapes.. Proc Natl Acad Sci U S A 2002 Feb 5;99(3):1395-8.
    doi: 10.1073/pnas.022447299pmc: PMC122201pubmed: 11818525google scholar: lookup
  6. Bokdam J, Wallis de Vries MF. Forage quality as a limiting factor for cattle grazing in isolated Dutch nature reserves. Conservation Biology 1992;6:399–408.
    doi: 10.1046/j.1523-1739.1992.06030399.xgoogle scholar: lookup
  7. Chambers RM, Meyerson LA, Saltonstall K. Expansion of Phragmites australis into tidal wetlands of North America. Aquatic Botany 1999;64:261–273.
    doi: 10.1016/S0304-3770(99)00055-8google scholar: lookup
  8. Chambers RM, Osgood DT, Bart DJ, Montalto F. Phragmites australis invasion and expansion in tidal wetlands: interactions among salinity, sulfide, and hydrology. Estuaries 2003;26:398–406.
    doi: 10.1007/BF02823716google scholar: lookup
  9. Christian JM, Wilson SD. Long-term ecosystem impacts of an introduced grass in the northern Great Plains. Ecology 1999;80:2397–2407.
    doi: 10.1890/0012-9658(1999)080[2397:LTEIOA]2.0.CO;2google scholar: lookup
  10. Cowie NR, Sutherland WJ, Ditlhogo MKM, James R. The effects of conservation management of reed beds II. The flora and litter disappearance. Journal of Applied Ecology 1992;29:277–284.
    doi: 10.2307/2404496google scholar: lookup
  11. Dijkema KS. Salt and brackish marshes around the Baltic Sea and adjacent parts of the North-Sea—their vegetation and management. Biological Conservation 1990;51:191–209.
    doi: 10.1016/0006-3207(90)90151-Egoogle scholar: lookup
  12. DiTomaso JM. Invasive weeds in rangelands: species, impacts, and management. Weed Science 2000;48:255–265.
    doi: 10.1614/0043-1745(2000)048[0255:IWIRSI]2.0.CO;2google scholar: lookup
  13. Esselink P, Fresco LFM, Dijkema KS. Vegetation change in a man-made salt marsh affected by a reduction in both grazing and drainage. Applied Vegetation Science 2002;5:17–32.
  14. Esselink P, Petersen J, Arens S, Bakker JP, Bunje J, Dijkema KS, Hecker N, Hellwig U, Jensen AV, Kers AS, Körber P, Lammerts EJ, Lüerssen G, Marencic H, Stock M, Veeneklaas RM, Vreeken M, Wolters M. Salt marshes. In: Marencic H, de Vlas J, editors. Quality status report 2009. vol. 25. 2009. pp. 1–54. (Wadden sea ecosystems).
  15. Esselink P, Zijlstra W, Dijkema KS, Van Diggelen R. The effects of decreased management on plant-species distribution patterns in a salt marsh nature reserve in the Wadden Sea. Biological Conservation 2000;93:61–76.
    doi: 10.1016/S0006-3207(99)00095-6google scholar: lookup
  16. Flory SL, Clay K. Non-native grass invasion alters native plant composition in experimental communities. Biological Invasions 2010;12:1285–1294.
    doi: 10.1007/s10530-009-9546-9google scholar: lookup
  17. Gurevich J, Scheiner SM, Fox GA. The ecology of plants. Sunderland, MA: Sinauer; 2006.
  18. Hazelton EL, Mozdzer TJ, Burdick DM, Kettenring KM, Whigham DF. Phragmites australis management in the United States: 40 years of methods and outcomes.. AoB Plants 2014;6(0).
    doi: 10.1093/aobpla/plu001pmc: PMC4038441pubmed: 24790122google scholar: lookup
  19. Hobbs RJ, Norton DA. Towards a conceptual framework for restoration ecology. Restoration Ecology 1996;4:93–110.
    doi: 10.1111/j.1526-100X.1996.tb00112.xgoogle scholar: lookup
  20. Holdredge C, Bertness MD, von Wettberg E, Silliman BR. Nutrient enrichment enhances hidden differences in phenotype to drive a cryptic plant invasion. Oikos 2010;119:1776–1784.
    doi: 10.1111/j.1600-0706.2010.18647.xgoogle scholar: lookup
  21. Hunter KL, Fox DA, Brown LM, Able KW. Responses of resident marsh fishes to stages of Phragmites australis invasion in three mid Atlantic estuaries. Estuaries and Coasts 2006;29:487–498.
  22. Jutila H. Effect of grazing on the vegetation of shore meadows along the Bothnian Sea, Finland. Plant Ecology 1999;140:77–88.
    doi: 10.1023/A:1009744117329google scholar: lookup
  23. Kareiva P, Marvier M. Conservation science: balancing the needs of people and nature. Greenwood Village, Colorado: Roberts Publishers; 2010.
  24. Karunaratne S, Asaeda T, Yutani K. Shoot regrowth and age-specific rhizome storage dynamics of Phragmites australis subjected to summer harvesting. Ecological Engineering 2004;22:99–111.
    doi: 10.1016/j.ecoleng.2004.02.006google scholar: lookup
  25. Kettenring KM, Adams CR. Lessons learned from invasive plant control experiments: a systematic review and meta-analysis. Journal of Applied Ecology 2011;48:970–979.
    doi: 10.1111/j.1365-2664.2011.01979.xgoogle scholar: lookup
  26. King RS, Deluca WV, Whigham DF, Marra PP. Threshold effects of coastal urbanization on Phragmites australis (common reed) abundance and foliar nitrogen in Chesapeake Bay. Estuaries and Coasts 2007;30:469–481.
    doi: 10.1007/BF02819393google scholar: lookup
  27. Lambert AM, Winiarski K, Casagrande RA. Distribution and impact of exotic gall flies (Lipara sp.) on native and exotic Phragmites australis. Aquatic Botany 2007;86:163–170.
    doi: 10.1016/j.aquabot.2006.09.017google scholar: lookup
  28. Lavergne S, Molofsky J. Reed canary grass (Phalaris arundinacea) as a biological model in the study of plant invasions. Critical Reviews in Plant Sciences 2004;23:415–429.
    doi: 10.1080/07352680490505934google scholar: lookup
  29. Lee SY. Net aerial primary productivity, litter production and decomposition of the reed Phragmites communis in a nature-reserve in Hong-Kong—management implications. Marine Ecology Progress Series 1990;66:161–173.
    doi: 10.3354/meps066161google scholar: lookup
  30. Levin SA. Learning to live in a global commons: socioeconomic challenges for a sustainable environment. Ecological Research 2006;21:328–333.
    doi: 10.1007/s11284-006-0162-1google scholar: lookup
  31. Levine JM, Adler PB, Yelenik SG. A meta-analysis of biotic resistance to exotic plant invasions. Ecology Letters 2004;7(10):975–989.
    doi: 10.1111/j.1461-0248.2004.00657.xgoogle scholar: lookup
  32. Martin LJ, Blossey B. The runaway weed: costs and failures of Phragmites australis management in the USA. Estuaries and Coasts 2013;36:626–632.
    doi: 10.1007/s12237-013-9593-4google scholar: lookup
  33. Marty JT. Effects of cattle grazing on diversity in ephemeral wetlands. Conservation Biology 2005;19:1626–1632.
    doi: 10.1111/j.1523-1739.2005.00198.xgoogle scholar: lookup
  34. Meyerson L, Saltonstall K, Chambers R. Phragmites australis in eastern North America: a historical and ecological perspective. In: Silliman BR, Gorsholz T, Bertness M, editors. Human impacts in salt marshes: a global perspective. California Press; 2009.
  35. Milotic T, Erfanzadeh R, Petillon J, Maelfait JP, Hoffmann M. Short-term impact of grazing by sheep on vegetation dynamics in a newly created salt-marsh site. Grass and Forage Science 2010;65:121–132.
    doi: 10.1111/j.1365-2494.2009.00725.xgoogle scholar: lookup
  36. Minchinton TE, Bertness MD. Disturbance-mediated competition and the spread of Phragmites australis in a coastal marsh. Ecological Applications 2003;13:1400–1416.
    doi: 10.1890/02-5136google scholar: lookup
  37. Morrison WE, Hay ME. Herbivore preference for native vs. exotic plants: generalist herbivores from multiple continents prefer exotic plants that are evolutionarily naïve.. PLoS One 2011 Mar 4;6(3):e17227.
    doi: 10.1371/journal.pone.0017227pmc: PMC3048865pubmed: 21394202google scholar: lookup
  38. Mozdzer TJ, Brisson J, Hazelton ELG. Physiological ecology and functional traits of North American native and Eurasian introduced Phragmites australis lineages. AoB Plants 2013;5:e567.
    doi: 10.1093/aobpla/plt048google scholar: lookup
  39. Mozdzer TJ, Megonigal JP. Jack-and-master trait responses to elevated CO2 and N: a comparison of native and introduced Phragmites australis.. PLoS One 2012;7(10):e42794.
    doi: 10.1371/journal.pone.0042794pmc: PMC3485286pubmed: 23118844google scholar: lookup
  40. Mozdzer TJ, Megonigal JP. Increased methane emissions by an introduced Phragmites australis lineage under global change. Wetlands 2013;33(4):609–615.
    doi: 10.1007/s13157-013-0417-xgoogle scholar: lookup
  41. Mozdzer TJ, Zieman JC. Ecophysiological differences between genetic lineages facilitate the invasion of non-native Phragmites australis in North American Atlantic coast wetlands. Journal of Ecology 2010;98(2):451–458.
    doi: 10.1111/j.1365-2745.2009.01625.xgoogle scholar: lookup
  42. McCormick MK, Kettenring KM, Baron HM, Whigham DF. Extent and reproductive mechanisms of Phragmites australis spread in brackish wetlands in Chesapeake Bay, Maryland (USA). Wetlands 2010;30:67–74.
    doi: 10.1007/s13157-009-0007-0google scholar: lookup
  43. Neira C, Grosholz ED, Levin LA, Blake R. Mechanisms generating modification of benthos following tidal flat invasion by a Spartina hybrid.. Ecol Appl 2006 Aug;16(4):1391-404.
    doi: 10.1890/1051-0761(2006)016[1391:MGMOBF]2.0.CO;2pubmed: 16937806google scholar: lookup
  44. Parker JD, Burkepile DE, Hay ME. Opposing effects of native and exotic herbivores on plant invasions.. Science 2006 Mar 10;311(5766):1459-61.
    doi: 10.1126/science.1121407pubmed: 16527979google scholar: lookup
  45. Peet RK, Wentworth TR, White PS. A flexible, multi-purpose method for recording vegetation composition and structure. Castanea 1998;63:262–274.
  46. Pimentel D, Zuniga R, Morrison D. Update on the environmental and economic costs associated with alien-invasive species in the United States. Ecological Economics 2005;52:273–288.
    doi: 10.1016/j.ecolecon.2004.10.002google scholar: lookup
  47. Reiner R, Craig A. Conservation easements in California blue oak woodlands: testing the assumption of livestock grazing as a compatible use. Natural Areas Journal 2011;31:408–413.
    doi: 10.3375/043.031.0411google scholar: lookup
  48. Rooth J, Stevenson JC, Cornwell JC. Increased sediment accretion rates following invasion by Phragmites australis: the role of litter. Estuaries 2003;26:475–483.
    doi: 10.1007/BF02823724google scholar: lookup
  49. Saltonstall K. Cryptic invasion by a non-native genotype of the common reed, Phragmites australis, into North America.. Proc Natl Acad Sci U S A 2002 Feb 19;99(4):2445-9.
    doi: 10.1073/pnas.032477999pmc: PMC122384pubmed: 11854535google scholar: lookup
  50. Sammul M, Kauer K, Koster T. Biomass accumulation during reed encroachment reduces efficiency of restoration of Baltic coastal grasslands. Applied Vegetation Science 2012;15:219–230.
    doi: 10.1111/j.1654-109X.2011.01167.xgoogle scholar: lookup
  51. Sax DF, Stachowicz JJ, Gaines SD. Species invasions: insights into ecology, evolution and biogeography. Sunderland, MA: Sinauer; 2005.
  52. Schrama M, Heijning P, Bakker JP, van Wijnen HJ, Berg MP, Olff H. Herbivore trampling as an alternative pathway for explaining differences in nitrogen mineralization in moist grasslands.. Oecologia 2013 May;172(1):231-43.
    doi: 10.1007/s00442-012-2484-8pubmed: 23271034google scholar: lookup
  53. Silliman BR, Bertness MD. Shoreline development drives invasion of Phragmites australis and the loss of plant diversity on New England salt marshes. Conservation Biology 2004;18:1424–1434.
    doi: 10.1111/j.1523-1739.2004.00112.xgoogle scholar: lookup
  54. Sturm M. Assessment of the effects of feral horses, sika deer and white-tailed deer on Assateague Island’s forest and shrub habitats. Berlin, MD: Assateague Island National Seashore; 2007.
  55. Tesauro J. The effects of livestock grazing on the bog turtle (Clemmys muhlenbergii). New Brunswick, NJ: Rutgers University; 2002.
  56. Tesauro J, Ehrenfeld D. The effects of livestock grazing on the bog turtle [Glyptemys (= Clemmys) muhlenbergii]. Herpetologica 2007;63:293–300.
    doi: 10.1655/0018-0831(2007)63[293:TEOLGO]2.0.CO;2google scholar: lookup
  57. Tewksbury L, Casagrande R, Blossey B, Häfliger P, Schäwrzlander M. Potential for biological control of Phragmites australis in North America. Biological Control 2002;23:191–212.
    doi: 10.1006/bcon.2001.0994google scholar: lookup
  58. Tilley JM, Terry RA. A two stage technique for the in vitro digestion of forage crops. Journal of the British Grassland Society 1963;18:104–111.
    doi: 10.1111/j.1365-2494.1963.tb00335.xgoogle scholar: lookup
  59. Tulbure MT, Ghioca DM, Whigham CA. Comparative ecology of native and non-native Phragmites australis (common reed) genotypes. Sacramento, CA: Society of Wetland Scientists; 2007.
  60. Turner MG. Effects of grazing by feral horses, clipping, trampling, and burning on a Georgia salt-marsh. Estuaries 1987;10:54–60.
    doi: 10.2307/1352025google scholar: lookup
  61. URS. Phragmites control alternatives assessment report. Wayne, New Jersey: Prepared for PSEG Services Corporation Estuary Enhancement Program; 2005.
  62. Van der Putten WH. Die-back of Phragmites australis in European wetlands: an overview of the European Research Programme on Reed Die-Back and Progression (1993–1994). Aquatic Botany 1997;59(3–4):263–275.
    doi: 10.1016/S0304-3770(97)00060-0google scholar: lookup
  63. Van Driesche R, Blossey B, Hoddle M, Lyon S, Reardon R. Biological control of invasive plants in the eastern United States. USDA forest service publication FHTET-2002-04. 2002; p. 413.
  64. Van Soest PJ. Nutritional ecology of the ruminant. Corvallis, Oregon: O&B Books Inc; 1982.
  65. Vestergaard P. Vegetation ecology of coastal meadows in Southeastern Denmark. Opera Botanica 1998;134:5–69.
  66. Vulink JT. Hungry herds. Management of temperate lowland wetlands by grazing. Van Zee tot Land 2001;66:1–385.
  67. Vulink JT, Drost HJ. Nutritional characteristics of cattle forage plants in the eutrophic nature reserve Oostvaardersplassen, the Netherlands. Netherland Journal of Agricultural Science 1991a;39:263–272.
  68. Vulink JT, Drost HJ. A causal analysis of diet composition in free ranging cattle in reed-dominated vegetation.. Oecologia 1991 Oct;88(2):167-172.
    doi: 10.1007/BF00320807pubmed: 28312128google scholar: lookup
  69. Windham L, Ehrenfeld JG. Net impact of a plant invasion on nitrogen-cycling processes within a brackish tidal marsh. Ecological Applications 2003;13:883–896.
    doi: 10.1890/02-5005google scholar: lookup
  70. Zedler JB, Kercher S. Causes and consequences of invasive plants in wetlands: opportunities, opportunists, and outcomes. Critical Reviews in Plant Sciences 2004;23(5):431–452.
    doi: 10.1080/07352680490514673google scholar: lookup

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