Disentangling plant trait responses to livestock grazing from spatio-temporal variation: The partial RLQ approach

Journal of Vegetation Science

Volumn 23, Issue 1, 2012, Pages 98-113

  Wesuls, Dirk ^a   Oldeland, Jens ^a   Dray, Stéphane ^b,c  

^a UNIVERSITY OF HAMBURG   (Germany)

^b UNIVERSITÉ DE LYON   (France)

^c UNIVERSITÉ LYON 1   (France)

Author keywords

Covariables; Fourth corner analysis; Namibia; Piosphere; Plant functional types; Savanna; Semi arid rangeland; Variation partitioning

Indexed keywords

ENVIRONMENTAL CHANGE; ENVIRONMENTAL CONDITIONS; GRASS; GRAZING; GRAZING PRESSURE; GROWTH FORM; HEIGHT; HETEROGENEITY; LEAF AREA; LIFE HISTORY TRAIT; LIVESTOCK; PERENNIAL PLANT; PLANT COMMUNITY; RANGELAND; SAVANNA; SEMIARID REGION; TEMPORAL VARIATION; ZOOCHORY;

NAMIBIA;

POACEAE;

EID: 84855564140     PISSN: 11009233     EISSN: 16541103     Source Type: Journal    
DOI: 10.1111/j.1654-1103.2011.01342.x     Document Type: Article

References (57)

1. Adler, P.B., Milchunas, D.G., Lauenroth, W.K., Sala, O.E. & Burke, I.C. 2004. Functional traits of graminoids in semi-arid steppes: a test of grazing histories. Journal of Applied Ecology 41: 653-663.
2. Amiaud, B., Touzard, B., Bonis, A. & Bouzillé, J.-B. 2008. After grazing exclusion, is there any modification of strategy for two guerrilla species: Elymus repens (L.) Gould and Agrostis stolonifera (L.)? Plant Ecology 197: 107-117.
3. Andrew, M.H. 1988. Grazing impact in relation to livestock watering points. Trends in Ecology & Evolution 3: 336-339.
4. Aubin, I., Ouellette, M.H., Legendre, P., Messier, C. & Bouchard, A. 2009. Comparison of two plant functional approaches to evaluate natural restoration along an old-field-deciduous forest chronosequence. Journal of Vegetation Science 20: 185-198.
5. de Bello, F., Leps, J. & Sebastià, M.T. 2005. Predictive value of plant traits to grazing along a climatic gradient in the Mediterranean. Journal of Applied Ecology 42: 824-833.
6. Benot, M.-L., Bonis, A., Rossignol, N. & Mony, C. 2011. Spatial patterns in defoliation and the expression of clonal traits in grazed meadows. Botany 89: 43-54.
7. Bernhardt-Römermann, M., Römermann, C., Nuske, R., Parth, A., Klotz, S., Schmidt, W. & Stadler, J. 2008. On the identification of the most suitable traits for plant functional trait analyses. Oikos 117: 1533-1541.
8. Cingolani, A.M., Posse, G. & Collantes, M.B. 2005. Plant functional traits, herbivore selectivity and response to sheep grazing in Patagonian steppe grasslands. Journal of Applied Ecology 42: 50-59.
9. Cingolani, A.M., Cabido, M., Gurvich, D.E., Renison, D. & Diaz, S. 2007. Filtering processes in the assembly of plant communities: are species presence and abundance driven by the same traits? Journal of Vegetation Science 18: 911-920.
10. Cornelissen, J.H.C., Lavorel, S., Garnier, E., Diaz, S., Buchmann, N., Gurvich, D.E., Reich, P.B., ter Steege, H., Morgan, H.D., van der Heijden, M.G.A., Pausas, J.G. & Poorter, H. 2003. A handbook of protocols for standardised and easy measurement of plant functional traits worldwide. Australian Journal of Botany 51: 335-380.
11. Craven, P. (ed.) 1999. A checklist of Namibian plant species. Southern African Biodiversity Network, Windhoek, Namibia.
12. Diaz, S., Lavorel, S., McIntyre, S., Falczuk, V., Casanoves, F., Milchunas, D.G., Skarpe, C., Rusch, G., Sternberg, M., Noy-Meir, I., Landsberg, J., Zhang, W., Clark, H. & Campbell, B.D. 2007. Plant trait responses to grazing - a global synthesis. Global Change Biology 13: 313-341.
13. Dolédec, S. & Chessel, D. 1987. Rythmes saisonniers et composantes stationnelles en milieu aquatique I - Description d'un plan d'observations complet par projection de variables. Acta Oecologica - Oecologia Generalis 8: 403-426.
14. Dolédec, S. & Chessel, D. 1994. Co-inertia analysis - an alternative method for studying species-environment relationships. Freshwater Biology 31: 277-294.
15. Dolédec, S., Chessel, D., terBraak, C.J.F. & Champely, S. 1996. Matching species traits to environmental variables: a new three-table ordination method. Environmental and Ecological Statistics 3: 143-166.
16. Dray, S. & Dufour, A.B. 2007. The ade4 package: implementing the duality diagram for ecologists. Journal of Statistical Software 22: 1-20.
17. Dray, S. & Legendre, P. 2008. Testing the species traits-environment relationships: the fourth-corner problem revisited. Ecology 89: 3400-3412.
18. Dray, S., Chessel, D. & Thioulouse, J. 2003. Co-inertia analysis and the linking of ecological data tables. Ecology 84: 3078-3089.
19. Germishuizen, G. & Meyer, N.L. (eds.) 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14. National Botanical Institute, Pretoria, South Africa.
20. Giess, W. 1971. A preliminary vegetation map of South-West Africa. Dinteria 4: 1-114.
21. Gitay, H. & Noble, I.R. 1997. What are functional types and how should we seek them? In: Smith, T.M., Shugart, H.H. & Woodward, F.I. (eds.) Plant functional types, pp. 3-19. Cambridge University Press, Melbourne, AU.
22. Golodets, C., Sternberg, M. & Kigel, J. 2009. A community-level test of the leaf-height-seed ecology strategy scheme in relation to grazing conditions. Journal of Vegetation Science 20: 392-402.
23. Grime, J.P., Thompson, K., Hunt, R., Hodgson, J.G., Cornelissen, J.H.C., Rorison, I.H., Hendry, G.A.F., Ashenden, T.W., Askew, A.P., Band, S.R., Booth, R.E., Bossard, C.C., Campbell, B.D., Cooper, J.E.L., Davison, A.W., Gupta, P.L., Hall, W., Hand, D.W., Hannah, M.A., Hillier, S.H., Hodkinson, D.J., Jalili, A., Liu, Z., Mackey, J.M.L., Matthews, N., Mowforth, M.A., Neal, A.M., Reader, R.J., Reiling, K., RossFraser, W., Spencer, R.E., Sutton, F., Tasker, D.E., Thorpe, P.C. & Whitehouse, J. 1997. Integrated screening validates primary axes of specialisation in plants. Oikos 79: 259-281.
24. Haarmeyer, D.H., Bösing, B.M., Schmiedel, U. & Dengler, J. 2010. The role of domestic herbivores in endozoochorous plant dispersal in the arid Knersvlakte, South Africa. South African Journal of Botany 76: 359-364.
25. Hill, M.O. & Smith, A.J.E. 1976. Principal components analysis of taxonomic data with multistate discrete characters. Taxon 25: 249-255.
26. Hoshino, A., Yoshihara, Y., Sasaki, T., Okayasu, T., Jamsran, U., Okuro, T. & Takeuchi, K. 2009. Comparison of vegetation changes along grazing gradients with different numbers of livestock. Journal of Arid Environments 73: 687-690.
27. Jauffret, S. & Lavorel, S. 2003. Are plant functional types relevant to describe degradation in arid, southern Tunisian steppes? Journal of Vegetation Science 14: 399-408.
28. Keddy, P.A. 1992. Assembly and response rules: two goals for predictive community ecology. Journal of Vegetation Science 3: 157-164.
29. Lacourse, T. 2009. Environmental change controls postglacial forest dynamics through interspecific differences in life-history traits. Ecology 90: 2149-2160.
30. Landsberg, J., Lavorel, S. & Stol, J. 1999. Grazing response groups among understorey plants in arid rangelands. Journal of Vegetation Science 10: 683-696.
31. Landsberg, J., James, C.D., Morton, S.R., Müller, W.J. & Stol, J. 2003. Abundance and composition of plant species along grazing gradients in Australian rangelands. Journal of Applied Ecology 40: 1008-1024.
32. Lang, H. 2005. The farm system of the Rehoboth Basters (Namibia): the situation in 1999/2000. Zeitschrift für Ethnologie 130: 223-243.
33. Lange, R.T. 1969. The piosphere: sheep track and dung patterns. Journal of Range Management 22: 396-400.
34. Lavorel, S., Diaz, S., Cornelissen, J.H.C., Garnier, E., Harrison, S.P., Mc Intyre, S., Pausas, J.G., Perez-Harguindeguy, N., Roumet, G. & Urceley, G. 2007. Plant functional types: are we getting any closer to the Holy Grail? In: Canadell, J., Pitelka, L.F. & Pataki, D. (eds.) Terrestrial ecosystems in a changing world, pp. 149-164. Springer, Berlin, DE.
35. Legendre, P., Galzin, R. & HarmelinVivien, M.L. 1997. Relating behavior to habitat: solutions to the fourth-corner problem. Ecology 78: 547-562.
36. Manthey, M. & Peper, J. 2010. Estimation of grazing intensity along grazing gradients - the bias of nonlinearity. Journal of Arid Environments 74: 1351-1354.
37. McIntyre, S. & Lavorel, S. 2001. Livestock grazing in subtropical pastures: steps in the analysis of attribute response and plant functional types. Journal of Ecology 89: 209-226.
38. Mendelsohn, J., Jarvis, A., Roberts, C. & Robertson, T. 2002. Atlas of Namibia. David Philip Publishers, Cape Town, ZA.
39. Milchunas, D.G., Sala, O.E. & Lauenroth, W.K. 1988. A generalized model of the effects of grazing by large herbivores on grassland community structure. The American Naturalist 132: 87.
40. Nygaard, B. & Ejrnaes, R. 2004. A new approach to functional interpretation of vegetation data. Journal of Vegetation Science 15: 49-56.
41. Owen-Smith, N. & Danckwerts, J.E. 1997. Herbivory. In: Cowling, R.M., Richardson, D.M. & Pierce, S.M. (eds.) Vegetation of Southern Africa, pp. 397-420. Cambridge University Press, Cambridge, UK.
42. Pakeman, R.J. & Marriott, C.A. 2010. A functional assessment of the response of grassland vegetation to reduced grazing and abandonment. Journal of Vegetation Science 21: 683-694.
43. Perkins, J.S. & Thomas, D.S.G. 1993. Environmental responses and sensitivity to permanent cattle ranching, semi-arid western central Botswana. In: Thomas, D.S.G. & Allison, R.J. (eds.) Landscape sensitivity, pp. 273-286. Wiley, Chichester, UK.
44. Pillar, V. 1999. On the identification of optimal plant functional types. Journal of Vegetation Science 10: 631-640.
45. Pringle, H.J.R. & Landsberg, J. 2004. Predicting the distribution of livestock grazing pressure in rangelands. Austral Ecology 29: 31-39.
46. Römermann, C., Bernhardt-Römermann, M., Kleyer, M. & Poschlod, P. 2009. Substitutes for grazing in semi-natural grasslands - do mowing or mulching represent valuable alternatives to maintain vegetation structure? Journal of Vegetation Science 20: 1086-1098.
47. Rutherford, M.C. & Westfall, R.H. 1994. Biomes of southern Africa: an objective categorization. 2nd ed. National Botanical Institute, Pretoria, ZA.
48. Sasaki, T., Okayasu, T., Jamsran, U. & Takeuchi, K. 2008. Threshold changes in vegetation along a grazing gradient in Mongolian rangelands. Journal of Ecology 96: 145-154.
49. Skarpe, C. 2000. Desertification, no-change or alternative states: can we trust simple models on livestock impact in dry rangelands? Applied Vegetation Science 3: 261-268.
50. Smet, M. & Ward, D. 2005. A comparison of the effects of different rangeland management systems on plant species composition, diversity and vegetation structure in a semi-arid savanna. African Journal of Range & Forage Science 22: 59-71.
51. Smet, M. & Ward, D. 2006. Soil quality gradients around water-points under different management systems in a semi-arid savanna, South Africa. Journal of Arid Environments 64: 251-269.
52. Todd, S.W. 2006. Gradients in vegetation cover, structure and species richness of Nama-Karoo shrublands in relation to distance from livestock watering points. Journal of Applied Ecology 43: 293-304.
53. Vesk, P.A., Leishman, M.R. & Westoby, M. 2004. Simple traits do not predict grazing response in Australian dry shrublands and woodlands. Journal of Applied Ecology 41: 22-31.
54. Wardle, D.A. & Bardgett, R.D. 2004. Human-induced changes in large herbivorous mammal density: the consequences for decomposers. Frontiers in Ecology and the Environment 2: 145-153.
55. Weiher, E., van der Werf, A., Thompson, K., Roderick, M., Garnier, E. & Eriksson, O. 1999. Challenging Theophrastus: a common core list of plant traits for functional ecology. Journal of Vegetation Science 10: 609-620.
56. Westoby, M. 1999. The LHS strategy scheme in relation to grazing and fire. In: Eldridge, D. & Freudenberger, D. (eds.) Proceedings of the VIth International Rangeland Congress Vol 2, pp. 893-896. International Rangeland Congress, Townsville, AU.
57. Yeaton, R.I. & Flores, J.L.F. 2009. Community structure of a southern Chihuahuan Desert grassland under different grazing pressures. South African Journal of Botany 75: 510-517.