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Landscape Ecology

, Volume 30, Issue 9, pp 1767–1782 | Cite as

Selective grazing and seasonal precipitation play key roles in shaping plant community structure of semi-arid grasslands

  • Hongwei WanEmail author
  • Yongfei Bai
  • David U. Hooper
  • Philipp Schönbach
  • Martin Gierus
  • Anne Schiborra
  • Friedhelm Taube
Research Article

Abstract

Context

Many studies have examined how intensity of grazing and patterns of precipitation individually and interactively influence the spatial and temporal dynamics of grassland vegetation, such as dominance, succession, coexistence, and spatial heterogeneity. However existing models have rarely considered the diet preferences of grazers and how they interact with variation in precipitation amount and timing.

Objective and methods

We examined how plant community structure responds to the individual and combined effects of grazing intensity, selective grazing, and patterns of precipitation, based on a six-year grazing experiment with seven levels of field-manipulated grazing intensity in a typical steppe of Inner Mongolia.

Results

The palatable species, mainly forbs, were most severely damaged at intermediate levels of grazing intensity; given that these species are the major contributors to plant community diversity, a U-shaped diversity-grazing intensity relationship resulted. In contrast, spatial heterogeneity of aboveground biomass and species composition peaked at intermediate levels of grazing intensity. Cold season precipitation positively correlated with the abundance of the dominant C3 grasses and correlated negatively with the subdominant forbs and C4 plants. Thus, when cold season precipitation increased, plant community species diversity decreased. Grazing intensity and precipitation did not interact in their effects on species richness.

Conclusions

These findings contrast with the predictions from current disturbance–diversity models and indicate that diet selection of grazing animals is an important factor shaping the diversity-grazing intensity relationship in semi-arid grasslands. Future grassland biodiversity conservation and management practices should take diet preference of grazing animals into account.

Keywords

Species richness Spatial heterogeneity Precipitation seasonality Diversity-grazing intensity relationship Intermediate disturbance hypothesis Dynamic equilibrium model C3/C4 abundance 

Notes

Acknowledgments

We are very grateful for the very helpful comments from two anonymous reviewers. We thank Jun Hui Chen and Yang Wang for their helps with statistics. This work was supported by the Natural Science Foundation of China (30825008, 31300354) and the Deutsche Forschungsgemeinschaft (DFG) for the research group 536 MAGIM (Matter fluxes of grasslands in Inner Mongolia as influenced by stocking rate). We appreciate the Inner Mongolia Grassland Ecosystem Research Station (IMGERS) of the Chinese Academy of Sciences for providing lab and field facilities, accommodation and the precious long term climatic dataset. DUH received partial support from the Chinese Academy of Sciences through the fellowship program for Visiting Senior International Scientists.

Supplementary material

10980_2015_252_MOESM1_ESM.docx (2.2 mb)
Supplementary material 1 (DOCX 2254 kb)

References

  1. Adler PB, Levine JM (2007) Contrasting relationships between precipitation and species richness in space and time. Oikos 116(2):221–232CrossRefGoogle Scholar
  2. Adler PB, HilleRisLambers J, Kyriakidis PC, Guan Q, Levine JM (2006) Climate variability has a stabilizing effect on the coexistence of prairie grasses. Proc Natl Acad Sci 103(34):12793–12798PubMedCentralCrossRefPubMedGoogle Scholar
  3. Anderson TM, Ritchie ME, McNaughton SJ (2007) Rainfall and soils modify plant community response to grazing in Serengeti National Park. Ecology 88(5):1191–1201CrossRefPubMedGoogle Scholar
  4. Ash AJ, McIvor JG (1998) How season of grazing and herbivore selectivity influence monsoon tall-grass communities of northern Australia. J Veg Sci 9(1):123–132CrossRefGoogle Scholar
  5. Auerswald K, Wittmer MHOM, Bai Y, Yang H, Taube F, Susenbeth A, Schnyder H (2012) C4 abundance in an Inner Mongolia grassland system is driven by temperature–moisture interaction, not grazing pressure. Basic Appl Ecol 13(1):67–75CrossRefGoogle Scholar
  6. Augustine DJ (2003) Spatial heterogeneity in the herbaceous layer of a semi-arid savanna ecosystem. Plant Ecol 167(2):319–332CrossRefGoogle Scholar
  7. Augustine DJ, McNaughton SJ (1998) Ungulate effects on the functional species composition of plant communities: herbivore selectivity and plant tolerance. J Wildl Manag 62(4):1165–1183CrossRefGoogle Scholar
  8. Avolio ML, Koerner SE, La Pierre KJ, Wilcox KR, Wilson GWT, Smith MD, Collins SL (2014) Changes in plant community composition, not diversity, during a decade of nitrogen and phosphorus additions drive above-ground productivity in a tallgrass prairie. J Ecol 102(6):1649–1660CrossRefGoogle Scholar
  9. Bai YF, Wu JG, Pan QM, Huang JH, Wang QB, Li FS, Buyantuyev A, Han XG (2007) Positive linear relationship between productivity and diversity: evidence from the Eurasian Steppe. J Appl Ecol 44(5):1023–1034CrossRefGoogle Scholar
  10. Bailey DW, Gross JE, Laca EA, Rittenhouse LR, Coughenour MB, Swift DM, Sims PL (1996) Mechanisms that result in large herbivore grazing distribution patterns. J Range Manag 49(5):386–400CrossRefGoogle Scholar
  11. Bakker ES, Ritchie ME, Olff H, Milchunas DG, Knops JMH (2006) Herbivore impact on grassland plant diversity depends on habitat productivity and herbivore size. Ecol Lett 9(7):780–788CrossRefPubMedGoogle Scholar
  12. Bestelmeyer BT, Okin GS, Duniway MC, Archer SR, Sayre NF, Williamson JC, Herrick JE (2015) Desertification, land use, and the transformation of global drylands. Front Ecol Environ 13(1):28–36CrossRefGoogle Scholar
  13. Borer ET, Seabloom EW, Gruner DS, Harpole WS, Hillebrand H, Lind EM, Adler PB, Alberti J, Anderson TM, Bakker JD, Biederman L, Blumenthal D, Brown CS, Brudvig LA, Buckley YM, Cadotte M, Chu C, Cleland EE, Crawley MJ, Daleo P, Damschen EI, Davies KF, DeCrappeo NM, Du G, Firn J, Hautier Y, Heckman RW, Hector A, HilleRisLambers J, Iribarne O, Klein JA, Knops JMH, La Pierre KJ, Leakey ADB, Li W, MacDougall AS, McCulley RL, Melbourne BA, Mitchell CE, Moore JL, Mortensen B, O'Halloran LR, Orrock JL, Pascual J, Prober SM, Pyke DA, Risch AC, Schuetz M, Smith MD, Stevens CJ, Sullivan LL, Williams RJ, Wragg PD, Wright JP, Yang LH (2014) Herbivores and nutrients control grassland plant diversity via light limitation. Nature 508(7497):517–520CrossRefPubMedGoogle Scholar
  14. Bray JR, Curtis JT (1957) An ordination of upland forest communities of southern Wisconsin. Ecol Monogr 27(4):325–349CrossRefGoogle Scholar
  15. Briske DD (1991) Developmental morphology and physiology of grasses. In: Heitschmidt RK, Stuth JW (eds) Grazing management: an ecological perspective. Timber Press, Portland, pp 85–108Google Scholar
  16. Briske DD, Fuhlendorf SD, Smeins FE (2005) State-and-transition models, thresholds, and rangeland health: a synthesis of ecological concepts and perspectives. Rangel Ecol Manag 58(1):1–10CrossRefGoogle Scholar
  17. Brown JR, Stuth JW (1993) How herbivory affects grazing tolerant and sensitive grasses in a central texas grassland—integrating plant-response across hierarchical levels. Oikos 67(2):291–298CrossRefGoogle Scholar
  18. Cardinale BJ, Duffy JE, Gonzalez A, Hooper DU, Perrings C, Venail P, Narwani A, Mace GM, Tilman D, Wardle DA, Kinzig AP, Daily GC, Loreau M, Grace JB, Larigauderie A, Srivastava D, Naeem S (2012) Impoverishing our planet: biodiversity loss and its impact on humanity. Nature 486:59–67CrossRefPubMedGoogle Scholar
  19. Chen SP, Bai YF, Zhang LX, Han XG (2005) Comparing physiological responses of two dominant grass species to nitrogen addition in Xilin River Basin of China. Environ Exp Bot 53(1):65–75CrossRefGoogle Scholar
  20. Chen ZJ, Li JB, Fang KY, Davi NK, He XY, Cui MX, Zhang XL, Peng JJ (2012) Seasonal dynamics of vegetation over the past 100 years inferred from tree rings and climate in Hulunbei’er steppe, northern China. J Arid Environ 83:86–93CrossRefGoogle Scholar
  21. Concha MA, Nicol AM (2000) Selection by sheep and goats for perennial ryegrass and white clover offered over a range of sward height contrasts. Grass Forage Sci 55(1):47–58Google Scholar
  22. Connell JH (1978) Diversity in tropical rain forests and coral reefs—high diversity of trees and corals is maintained only in a non-equilibrium state. Science 199(4335):1302–1310CrossRefPubMedGoogle Scholar
  23. Cornelissen P, Vulink JT (2015) Density-dependent diet selection and body condition of cattle and horses in heterogeneous landscapes. Appl Anim Behav Sci 163:28–38CrossRefGoogle Scholar
  24. De Bello F, LepŠ JAN, SebastiÀ M-T (2005) Predictive value of plant traits to grazing along a climatic gradient in the Mediterranean. J Appl Ecol 42(5):824–833CrossRefGoogle Scholar
  25. Diaz S, Lavorel S, McIntyre S, Falczuk V, Casanoves F, Milchunas DG, Skarpe C, Rusch G, Sternberg M, Noy-Meir I, Landsberg J, Zhang W, Clark H, Campbell BD (2007) Plant trait responses to grazing—a global synthesis. Glob Change Biol 13(2):313–341CrossRefGoogle Scholar
  26. Dumont B (1997) Diet preferences of herbivores at pasture. Annal De Zootechnie 46(2):105–116CrossRefGoogle Scholar
  27. Dumont B, Rook AJ, Coran C, Roever KU (2007) Effects of livestock breed and grazing intensity on biodiversity and production in grazing systems. 2. Diet selection. Grass Forage Sci 62(2):159–171CrossRefGoogle Scholar
  28. Fanselow N, Schonbach P, Gong XY, Lin S, Taube F, Loges R, Pan QM, Dittert K (2011) Short-term regrowth responses of four steppe grassland species to grazing intensity, water and nitrogen in Inner Mongolia. Plant Soil 340(1–2):279–289CrossRefGoogle Scholar
  29. Fox JW (2013) The intermediate disturbance hypothesis should be abandoned. Trends Ecol Evol 28(2):86–92CrossRefPubMedGoogle Scholar
  30. Gang C, Zhou W, Chen Y, Wang Z, Sun Z, Li J, Qi J, Odeh I (2014) Quantitative assessment of the contributions of climate change and human activities on global grassland degradation. Environ Earth Sci 72(11):4273–4282CrossRefGoogle Scholar
  31. Gaston KJ (2000) Global patterns in biodiversity. Nature 405(6783):220–227CrossRefPubMedGoogle Scholar
  32. Goldewijk KK (2001) Estimating global land use change over the past 300 years: the HYDE Database. Global Biogeochem Cycles 15(2):417–433CrossRefGoogle Scholar
  33. Green RH (1979) Sampling design and statistical methods for environmental biologists. Wiley Interscience, ChichesterGoogle Scholar
  34. Han JG, Zhang YJ, Wang CJ, Bai WM, Wang YR, Han GD, Li LH (2008) Rangeland degradation and restoration management in China. Rangel J 30(2):233–239CrossRefGoogle Scholar
  35. Hedges LV, Gurevitch J, Curtis PS (1999) The meta-analysis of response ratios in experimental ecology. Ecology 80(4):1150–1156CrossRefGoogle Scholar
  36. Hixon MA, Beets JP (1993) Predation, prey refuges, and the structure of coral-reef fish assemblages. Ecol Monogr 63(1):77–101Google Scholar
  37. Holechek JL, Pieper RD, Herbel CH (2004) Range management. Principles and practices, 5th edn. Pearson-Prentice Hall, Upper Saddle RiverGoogle Scholar
  38. Hooper DU, Adair EC, Cardinale BJ, Byrnes JEK, Hungate BA, Matulich KL, Gonzalez A, Duffy JE, Gamfeldt L, O’Connor MI (2012) A global synthesis reveals biodiversity loss as a major driver of ecosystem change. Nature 486:105–108PubMedGoogle Scholar
  39. Hughes AR, Byrnes JE, Kimbro DL, Stachowicz JJ (2007) Reciprocal relationships and potential feedbacks between biodiversity and disturbance. Ecol Lett 10(9):849–864CrossRefPubMedGoogle Scholar
  40. Huston M (1979) General hypothesis of species-diversity. Am Nat 113(1):81–101CrossRefGoogle Scholar
  41. Huston M (2014) Disturbance, productivity, and species diversity: empiricism vs. logic in ecological theory. Ecology 95(9):2382–2396CrossRefGoogle Scholar
  42. IUSS Working Group WRB (ed) (2006) World reference base for soil resources. World soil resources reports, FAO, RomeGoogle Scholar
  43. Keady TWJ, Murphy JJ (1998) A note on the preferences for, and rate of intake of, grass silages by dairy cows. Irish J Agric Food Res 37(1):87–91Google Scholar
  44. Koerner SE, Burkepile DE, Fynn RWS, Burns CE, Eby S, Govender N, Hagenah N, Matchett KJ, Thompson DI, Wilcox KR, Collins SL, Kirkman KP, Knapp AK, Smith MD (2014a) Plant community response to loss of large herbivores differs between North American and South African savanna grasslands. Ecology 95(4):808–816CrossRefPubMedGoogle Scholar
  45. Koerner SE, Collins SL, Blair JM, Knapp AK, Smith MD (2014b) Rainfall variability has minimal effects on grassland recovery from repeated grazing. J Veg Sci 25(1):36–44CrossRefGoogle Scholar
  46. Kondoh M (2001) Unifying the relationships of species richness to productivity and disturbance. Proc R Soc Lond B Biol Sci 268(1464):269–271CrossRefGoogle Scholar
  47. Li M, Yi X, Zhang X, Li L (2005) The list of C4 plants in alpine locality of Qinghai plateau. Acta Bot Boreal Occident Sin 25(5):1046–1050Google Scholar
  48. Liu J, Feng C, Wang D, Wang L, Wilsey BJ, Zhong Z (2015) Impacts of grazing by different large herbivores in grassland depend on plant species diversity. Journal of Applied Ecology (in press)Google Scholar
  49. Mackey RL, Currie DJ (2001) The diversity-disturbance relationship: is it generally strong and peaked? Ecology 82(12):3479–3492Google Scholar
  50. Milchunas DG, Sala OE, Lauenroth WK (1988) A generalized model of the effects of grazing by large herbivores on grassland community structure. Am Nat 132(1):87–106CrossRefGoogle Scholar
  51. Milchunas DG, Lauenroth WK, Chapman PL, Kazempour MK (1989) Effects of grazing, topography, and precipitation on the structure of a semiarid grassland. Vegetatio 80(1):11–23CrossRefGoogle Scholar
  52. Murphy BP, Bowman DMJS (2007) Seasonal water availability predicts the relative abundance of C3 and C4 grasses in Australia. Glob Ecol Biogeogr 16(2):160–169CrossRefGoogle Scholar
  53. Odadi WO, Karachi MK, Abdulrazak SA, Young TP (2011) African wild ungulates compete with or facilitate cattle depending on season. Science 333(6050):1753–1755CrossRefPubMedGoogle Scholar
  54. Paine RT (1966) Food web complexity and species diversity. Am Nat 100(910):65–75CrossRefGoogle Scholar
  55. Pakeman RJ (2004) Consistency of plant species and trait responses to grazing along a productivity gradient: a multi-site analysis. J Ecol 92(5):893–905CrossRefGoogle Scholar
  56. Paruelo JM, Lauenroth WK (1996) Relative abundance of plant functional types in grasslands and shrublands of north America. Ecol Appl 6(4):1212–1224CrossRefGoogle Scholar
  57. Peters DPC, Havstad KM, Archer SR, Sala OE (2015) Beyond desertification: new paradigms for dryland landscapes. Front Ecol Environ 13(1):4–12CrossRefGoogle Scholar
  58. Potts DL, Huxman TE, Enquist BJ, Weltzin JF, Williams DG (2006) Resilience and resistance of ecosystem functional response to a precipitation pulse in a semi-arid grassland. J Ecol 94(1):23–30CrossRefGoogle Scholar
  59. Proulx M, Mazumder A (1998) Reversal of grazing impact on plant species richness in nutrient-poor vs. nutrient-rich ecosystems. Ecology 79(8):2581–2592CrossRefGoogle Scholar
  60. Ren H, Schönbach P, Wan H, Gierus M, Taube F (2012) Effects of grazing intensity and environmental factors on species composition and diversity in typical steppe of Inner Mongolia, China. PLoS ONE 7(12):e52180PubMedCentralCrossRefPubMedGoogle Scholar
  61. Rueda M, Rebollo S, Garcia-Salgado G (2013) Contrasting impacts of different-sized herbivores on species richness of Mediterranean annual pastures differing in primary productivity. Oecologia 172(2):449–459CrossRefPubMedGoogle Scholar
  62. Sala OE, Chapin  FS III, Armesto JJ, Berlow E, Bloomfield J, Dirzo R, Huber-Sanwald E, Huenneke LF, Jackson RB, Kinzig A, Leemans R, Lodge DM, Mooney HA, Oesterheld Mn, Poff NL, Sykes MT, Walker BH, Walker M, Wall DH (2000) Biodiversity—global biodiversity scenarios for the year 2100. Science 287(5459):1770–1774CrossRefPubMedGoogle Scholar
  63. Sasaki T, Okubo S, Okayasu T, Jamsran U, Ohkuro T, Takeuchi K (2009) Two-phase functional redundancy in plant communities along a grazing gradient in Mongolian rangelands. Ecology 90(9):2598–2608CrossRefPubMedGoogle Scholar
  64. Schönbach P, Wan H, Gierus M, Bai Y, Müller K, Lin L, Susenbeth A, Taube F (2011) Grassland responses to grazing: effects of grazing intensity and management system in an Inner Mongolian steppe ecosystem. Plant Soil 340(1):103–115CrossRefGoogle Scholar
  65. Sternberg M, Gutman M, Perevolotsky A, Ungar ED, Kigel J (2000) Vegetation response to grazing management in a Mediterranean herbaceous community: a functional group approach. J Appl Ecol 37(2):224–237CrossRefGoogle Scholar
  66. Stevens CJ, Dise NB, Mountford JO, Gowing DJ (2004) Impact of nitrogen deposition on the species richness of grasslands. Science 303(5665):1876–1879CrossRefPubMedGoogle Scholar
  67. Sullivan S, Rohde R (2002) On non-equilibrium in arid and semi-arid grazing systems. J Biogeogr 29(12):1595–1618CrossRefGoogle Scholar
  68. Tang H, Liu S (2001) The list of C4 plants in NeiMongol area. Acta Sci Nat Univ Nei Mongol 32(4):431–438Google Scholar
  69. Walter J, Grant K, Beierkuhnlein C, Kreyling J, Weber M, Jentsch A (2012) Increased rainfall variability reduces biomass and forage quality of temperate grassland largely independent of mowing frequency. Agric Ecosyst Environ 148:1–10CrossRefGoogle Scholar
  70. Wan H, Bai Y, Schönbach P, Gierus M, Taube F (2011) Effects of grazing management system on plant community structure and functioning in a semiarid steppe: scaling from species to community. Plant Soil 340(1):215–226CrossRefGoogle Scholar
  71. Wang SP (2000) The dietary composition of fine wool sheep and plant diversity in Inner Mongolia steppe. Acta Ecol Sin 20(6):951–957Google Scholar
  72. Wang SP (2001) The dietary composition of fine wool sheep under different stocking rates and relationship between dietary diversity and plant diversity in Inner Mongolia steppe. Acta Ecol Sin 21(2):237–243Google Scholar
  73. Whalley RDB, Hardy MB (2000) Measuring botanical composition of grasslands. In: ‘t Mannetje L, Jones RM (eds) Field and laboratory methods for grassland and animal production research. CABI Publishing, London, pp 67–102CrossRefGoogle Scholar
  74. Winslow JC, Hunt ER Jr, Piper SC (2003) The influence of seasonal water availability on global C3 versus C4 grassland biomass and its implications for climate change research. Ecol Model 163(1–2):153–173CrossRefGoogle Scholar
  75. Zhang K, Yu Z, Li X, Zhou W, Zhang D (2007) Land use change and land degradation in China from 1991 to 2001. Land Degrad Dev 18(2):209–219CrossRefGoogle Scholar
  76. Zheng S, Lan Z, Li W, Shao R, Shan Y, Wan H, Taube F, Bai Y (2011) Differential responses of plant functional trait to grazing between two contrasting dominant C3 and C4 species in a typical steppe of Inner Mongolia, China. Plant Soil 340(1–2):141–155CrossRefGoogle Scholar
  77. Zhong ZW, Wang DL, Zhu H, Wang L, Feng C, Wang ZN (2014) Positive interactions between large herbivores and grasshoppers, and their consequences for grassland plant diversity. Ecology 95(4):1055–1064CrossRefPubMedGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Hongwei Wan
    • 1
    Email author
  • Yongfei Bai
    • 1
  • David U. Hooper
    • 2
  • Philipp Schönbach
    • 3
  • Martin Gierus
    • 4
  • Anne Schiborra
    • 5
  • Friedhelm Taube
    • 3
  1. 1.State Key Laboratory of Vegetation and Environmental Change, Institute of BotanyThe Chinese Academy of SciencesBeijingPeople’s Republic of China
  2. 2.Department of BiologyWestern Washington UniversityBellinghamUSA
  3. 3.Institute of Crop Science and Plant Breeding - Grass and Forage Science/Organic AgricultureChristian-Albrechts-UniversityKielGermany
  4. 4.Institute of Animal Nutrition, Products, and Nutrition PhysiologyUniversity of Natural Resources and Life SciencesViennaAustria
  5. 5.Animal Husbandry in the Tropics and SubtropicsUniversity of Kassel and Georg-August-Universität GöttingenGöttingenGermany

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