Climate variability; Dominance hypothesis; Forage production; Functional complementarity; Functional structure of communities; Grazing; Interannual variation; Nutrient and water availability; Response and effect framework
Abstract :
[en] Biomass production in grasslands, a key component of food provision for domestic herbivores, is known to depend on climate, resource availability, and on the functional characteristics of communities. However, the combined effects of these different factors remain largely unknown. The aim of the present study was to unravel the causes of variations in the standing biomass of plant communities using a long-term experiment conducted in a Mediterranean rangeland of Southern France. Two management regimes, sheep grazing and grazing associated with mineral fertilization, were applied to different areas of the study site over the past 25 years. Abiotic (temperature, available water, nutrients) and biotic (components of the functional structure communities) factors were considered to explain interannual and spatial variations in standing biomass in these rangelands.
Standing biomass was highly predictable, with the best model explaining ;80% of variations in the amount of biomass produced, but the variation explained by abiotic and biotic factors was dependent on the season and on the management regime. Abiotic factors were found to have comparable effects in both management regimes: The amount of biomass produced in the spring was limited by cold temperatures, while it was limited by water availability and high temperatures in the summer. In the fertilized community, the progressive change in the functional structure of the communities had significant effects on the amount of biomass produced: the dominance of few productive species which were functionally close led to higher peak standing biomass in spring.
Chollet, Simon; Centre National de la Recherche Scientifique - CNRS > Centre d'Ecologie Fonctionnelle et Evolutive (UMR 5175)
Rambal, Serge; Centre National de la Recherche Scientifique - CNRS > Centre d'Ecologie Fonctionnelle et Evolutive (UMR 5175)
Fayolle, Adeline ; Université de Liège - ULiège > Forêts, Nature et Paysage > Gestion des ressources forestières et des milieux naturels
Hubert, Daniel; Institut Scientifique de Recherche Agronomique - INRA > Elevage des Ruminants en Régions Chaudes
Foulquié, Didier; Institut Scientifique de Recherche Agronomique - INRA > Domaine de La Fage
Garnier, Eric; Centre National de la Recherche Scientifique - CNRS > Centre d'Ecologie Fonctionnelle et Evolutive (UMR 5175)
Language :
English
Title :
Combined effects of climate, resource availability, and plant traits on biomass produced in a Mediterranean rangeland
Publication date :
2014
Journal title :
Ecology
ISSN :
0012-9658
Publisher :
Ecological Society of America, Washington, United States - District of Columbia
Volume :
95
Issue :
3
Pages :
737-748
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
INRA-EcoGer project DivHerbe (Structure, diversité et fonctionnement : des clés multi-échelles pour la gestion des prairies permanentes)
Funders :
INRA - Institut National de la Recherche Agronomique
Commentary :
This study was partially funded by the French national INRA-EcoGer project DivHerbe (Structure, diversite´ et fonctionnement: des cle´ s multi-e´chelles pour la gestion des prairies permanentes) coordinated by Pablo Cruz (INRA Toulouse, France). We thank the technical staff of the La Fage INRA experimental station for facilities and support to carry out the field work. We also thank Olivier Gimenez, Denis Vile, and Cyrille Violle for their useful advice at different stages of the data analyses. This is a publication from the GDR 2574 ‘‘TRAITS’’ (CNRS, France).
Bernard, C. 1996. Flore des Causses. Bulletin de la Socié té Botanique du Centre-Ouest. Nouvelle sé rie. Special issue 31: 1-784.
Bernhardt-Romermann, M., C. Romermann, S. Sperlich, and W. Schmidt. 2011. Explaining grassland biomass: the contribution of climate, species and functional diversity depends on fertilization and mowing frequency. Journal of Applied Ecology 48: 1088-1097.
Boulant, N., G. Kunstler, S. Rambal, and J. Lepart. 2008. Seed supply, drought, and grazing determine spatio-temporal patterns of recruitment for native and introduced invasive pines in grasslands. Diversity and Distributions 14: 862-874.
Briggs, J. M., and A. K. Knapp. 1995. Interannual variability in primary production in tall grass prairie: climate, soilmoisture, topographic position, and fire as determinants of aboveground biomass. American Journal of Botany 82: 1024-1030.
Burnham, K. P., and D. R. Anderson. 2002. Model selection and multimodel inference: a practical information-theoretical approach. Second edition. Springer, New York, New York, USA.
Chapin, F. S., III, P. A. Matson, and H. A. Mooney. 2002. Principles of terrestrial ecosystem ecology. Springer, New York, New York, USA.
Cingolani, A. M., M. Cabido, D. E. Gurvich, D. Renison, and S. Díaz. 2007. Filtering processes in the assembly of plant communities: Are species presence and adundance driven by the same traits? Journal of Vegetation Science 18: 911-920.
Cingolani, A. M., I. Noy-Meir, and S. Diaz. 2005. Grazing effects on rangeland diversity: a synthesis of contemporary models. Ecological Applications 15: 757-773.
Conti, G., and S. Díaz. 2013. Plant functional diversity and carbon storage: an empirical test in semi-arid forest ecosystems. Journal of Ecology 101: 18-28.
Cornelissen, J. H. C., et al. 2003. A handbook of protocols for standardised and easy measurement of plant functional traits worldwide. Australian Journal of Botany 51: 335-380.
Craine, J. M., J. B. Nippert, A. J. Elmore, A. M. Skibbe, S. L. Hutchinson, and N. A. Brunsell. 2012. Timing of climate variability and grassland productivity. Proceedings of the National Academy of Sciences USA 109: 3401-3405.
Crawley, M. J., A. E. Johnston, J. Silvertown, M. Dodd, C. de Mazencourt, M. S. Heard, D. F. Henman, and G. R. Edwards. 2005. Determinants of species richness in the Park Grass Experiment. American Naturalist 165: 179-192.
Daget, P., and J. Poissonet. 1971. Une méthode d'analyse phytologique des prairies. Criteres d'application. Annales Agronomiques 22: 5-41.
Davis, C. E., J. E. Hyde, S. I. Bangdiwala, and J. J. Nelson. 1986. An example of dependencies among variables in a conditional logistic regression. Pages 140-147 in S. H. Moolgavkar and R. L. Prentice, editors. Modern statistical methods in chronic disease epidemiology. Wiley, New York, New York, USA.
di Castri, F. 1981. Mediterranean-type shrublands of the world. Pages 1-52 in F. Di Castri, D. W. Goodall, and R. L. Specht, editors. Mediterranean-type shrublands. Elsevier Scientific, Amsterdam, The Netherlands.
Di'az, S., S. Lavorel, F. de Bello, F. Quetier, K. Grigulis, and M. Robson. 2007a. Incorporating plant functional diversity effects in ecosystem service assessments. Proceedings of the National Academy of Sciences USA 104: 20684-20689.
Díaz, S., et al. 2007b. Plant trait responses to grazing: a global synthesis. Global Change Biology 13: 313-341.
Dray, S., and A. B. Dufour. 2007. The ade4 package: Implementing the duality diagram for ecologists. Journal of Statistical Software 22: 1-20.
Duru, M., G. Lemaire, and P. Cruz. 1997. Grasslands. Pages 59-72 in G. Lemaire, editor. Diagnosis of the nitrogen status in crops. Springer-Verlag, Berlin, Germany.
Fay, P. A., J. D. Carlisle, A. K. Knapp, J. M. Blair, and S. L. Collins. 2003. Productivity responses to altered rainfall patterns in a C-4-dominated grassland. Oecologia 137: 245-251.
Garnier, E., et al. 2004. Plant functional markers capture ecosystem properties during secondary succession. Ecology 85: 2630-2637.
Garnier, E., and M.-L. Navas. 2011. Assessing the functional role of plant diversity in grasslands: a trait-based approach. Pages 138-147 in G. Lemaire, J. G. Hodgson, and A. Chabbi, editors. Grassland productivity and ecosystem. CAB International, Wallingford, UK.
Garnier, E., and M.-L. Navas. 2012. A trait-based approach to comparative functional plant ecology: concepts, methods and applications for agroecology. A review. Agronomy for Sustainable Development 32: 365-399.
Gaujour, E., B. Amiaud, C. Mignolet, and S. Plantureux. 2012. Factors and processes affecting plant biodiversity in permanent grasslands. A review. Agronomy for Sustainable Development 32: 133-160.
Gibson, D. J. 2009. Grasses and grassland ecology. Oxford University Press, Oxford, UK.
Gough, L., C. W. Osenberg, K. L. Gross, and S. L. Collins. 2000. Fertilization effects on species density and primary productivity in herbaceous plant communities. Oikos 89: 428-439.
Grigulis, K., et al. 2013. Relative contributions of plant traits and soil microbial properties to mountain grassland ecosystem services. Journal of Ecology 101: 47-57.
Grime, J. P. 1998. Benefits of plant diversity to ecosystems: immediate, filter and founder effects. Journal of Ecology 86: 902-910.
Hodgson, J. G., et al. 2011. Is leaf dry matter content a better predictor of soil fertility than specific leaf areäAnnals of Botany 108: 1337-1345.
Jobbagy, E. G., and O. E. Sala. 2000. Controls of grass and shrub aboveground production in the Patagonian steppe. Ecological Applications 10: 541-549.
Klumpp, K., and J. F. Soussana. 2009. Using functional traits to predict grassland ecosystem change: a mathematical test of the response-and-effect trait approach. Global Change Biology 15: 2921-2934.
Knapp, A. K., and M. D. Smith. 2001. Variation among biomes in temporal dynamics of aboveground primary production. Science 291: 481-484.
Kutner, M. H., C. J. Nachtsheim, J. Neter, and W. Li. 2004. Applied linear regression models. McGraw-Hill Irwin, New York, New York, USA.
La Pierre, K. J., S. H. Yuan, C. C. Chang, M. L. Avolio, L. M. Hallett, T. Schreck, and M. D. Smith. 2011. Explaining temporal variation in above-ground productivity in a mesic grassland: the role of climate and flowering. Journal of Ecology 99: 1250-1262.
Lauenroth, W. K., and I. C. Burke. 2008. Ecology of the shortgrass steppe: a long-term perspective. Oxford University Press, Oxford, UK.
Lauenroth, W. K., and O. E. Sala. 1992. Long-term forage production of North-American shortgrass steppe. Ecological Applications 2: 397-403.
Lavorel, S. 2013. Plant functional effects on ecosystem services. Journal of Ecology 101: 4-8.
Lavorel, S., et al. 2007. Plant functional types: Are we getting any closer to the Holy Grail? Terrestrial ecosystems in a changing world. Pages 149-164 in J. G. Canadell, D Pataki, and L. Pitelka, editors. Springer, Berlin, Germany.
Lavorel, S., and E. Garnier. 2002. Predicting changes in community composition and ecosystem functioning from plant traits: revisiting the Holy Grail. Functional Ecology 16: 545-556.
Lavorel, S., K. Grigulis, P. Lamarque, M. P. Colace, D. Garden, J. Girel, G. Pellet, and R. Douzet. 2011. Using plant functional traits to understand the landscape distribution of multiple ecosystem services. Journal of Ecology 99: 135-147.
LeBauer, D. S., and K. K. Treseder. 2008. Nitrogen limitation of net primary productivity in terrestrial ecosystems is globally distributed. Ecology 89: 371-379.
Lemaire, G., J. G. Hodgson, and A. Chabbi, editors. 2011. Grassland productivity and ecosystem services. CAB International, Oxfordshire, UK.
Ljung, G. M., and G. E. P. Box. 1978. Measure of lack of fit in time-series models. Biometrika 65: 297-303.
Margaris, N. S., S. Adamandiadou, L. Siafaca, and J. Diamantopoulos. 1984. Nitrogen and phosphorus-content in plant species of Mediterranean ecosystems in Greece. Vegetatio 55: 29-35.
Milchunas, D. G., and W. K. Lauenroth. 1993. Quantitative effects of grazing on vegetation and soils over a global range of environments. Ecological Monographs 63: 327-366.
Mitrakos, K. 1980. A theory for Mediterranean plant life. Acta Oecologica-Oecologia Plantarum 1: 245-252.
Mokany, K., J. Ash, and S. Roxburgh. 2008. Functional identity is more important than diversity in influencing ecosystem processes in a temperate native grassland. Journal of Ecology 96: 884-893.
Molénat, G., D. Foulquié, P. Autran, J. Bouix, D. Hubert, M. Jacquin, F. Bocquier, and B. Bibé. 2005. Pour un élevage ovin allaitant performant et durable sur parcours: un systeme expérimental sur le Causse du Larzac. INRA Productions Animales 18: 323-338.
Mouillot, D., S. Ville'ger, M. Scherer-Lorenzen, and N. W. H. Mason. 2011. Functional structure of biological communities predicts ecosystem multifunctionality. PLoS ONE 6: e17476.
Muldavin, E. H., D. I. Moore, S. L. Collins, K. R. Wetherill, and D. C. Lightfoot. 2008. Aboveground net primary production dynamics in a northern Chihuahuan Desert ecosystem. Oecologia 155: 123-132.
Nippert, J. B., A. K. Knapp, and J. M. Briggs. 2006. Intraannual rainfall variability and grassland productivity: can the past predict the future? Plant Ecology 184: 65-74.
Oesterheld, M., J. Loreti, M. Semmartin, and J. M. Paruelo. 1999. Grazing, fire and climate effects on primary productivity of grasslands and savannas. Pages 287-306 in L. R. Walker, editor. Ecosystems of the world. Volume 16: Ecosystems of disturbed grounds. Elsevier, Amsterdam, The Netherlands.
Oesterheld, M., J. Loreti, M. Semmartin, and O. E. Sala. 2001. Inter-annual variation in primary production of a semi-arid grassland related to previous-year production. Journal of Vegetation Science 12: 137-142.
Petchey,O. L., and K. J. Gaston. 2006. Functional diversity: back to basics and looking forward. Ecology Letters 9: 741-758.
R Development Core Team 2011. R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria.
Reichstein, M., et al. 2003. Modeling temporal and large-scale spatial variability of soil respiration from soil water availability, temperature and vegetation productivity indices. Global Biogeochemical Cycles 17: 1-15.
Sala, O. E., W. J. Parton, L. A. Joyce, and W. K. Lauenroth. 1988. Primary production of the central grassland region of the United States. Ecology 69: 40-45.
Saugier, B., J. Roy, and H. A. Mooney. 2001. Estimations of global terrestrial productivity: converging towards a single number? Pages 543-557 in J. Roy, B. Saugier, and H. A. Mooney, editors. Terrestrial global productivity. Academic Press, San Diego, California, USA.
Schumacher, J., and C. Roscher. 2009. Differential effects of functional traits on aboveground biomass in semi-natural grasslands. Oikos 118: 1659-1668.
Sonnier, G., B. Shipley, and M. L. Navas. 2010. Quantifying relationships between traits and explicitly measured gradients of stress and disturbance in early successional plant communities. Journal of Vegetation Science 21: 1014-1024.
Veron, S. R., J. M. Paruelo, O. E. Sala, and W. K. Lauenroth. 2002. Environmental controls of primary production in agricultural systems of the Argentine Pampas. Ecosystems 5: 625-635.
Wright, I. J., et al. 2004. The worldwide leaf economics spectrum. Nature 428: 821-827.