Abstract
Although a widely accepted ecological theory predicts that more diverse plant communities should be better able to capture resources and turn carbon dioxide into biomass, the most productive communities known are low diversity agricultural ones. This paradox has fuelled a long running controversy in ecology surrounding the nature of the relationship between diversity, productivity and fertility. Here, an evolutionary computer model is used which demonstrates that given the opportunity, species-rich communities may evolve under high fertility conditions. In contrast to low diversity, highly productive agricultural communities are shown to probably be a recent phenomenon. In simulations where fertility was applied to communities that had evolved under lower nutrient conditions, a few species had the ability to become ‘dominant’. These species were responsible for the loss of diversity and for the majority of biomass production. These results are consistent with complementarity theory applying in nature in old co-evolved low nutrient communities, whereas in recently established fertile agricultural communities, dominant species appear to regulate biomass production. Understanding the nature of these ‘dominant’ species throws light on our understanding of phenotypic plasticity and the ecology of invasive species.
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References
Aarssen LW (2001) On correlations and causations between productivity and species richness in vegetation: predictions from habitat attributes. Basic Appl Ecol 2:105–114 doi:10.1078/1439-1791-00041
Anderson TM, McNaughton SJ, Ritchie ME (2004) Scale-dependent relationships between the spatial distribution of a limiting resource and plant species diversity in an African grassland ecosystem. Oecologia 139:277–287 doi:10.1007/s00442-004-1499-1
Bond W (1983) On alpha diversity and the richness of the cape flora: a study in southern Cape Fynbos. In: Kruger FJ, Mitchell DT, Jarvis JUM (eds) Mediterranean type ecosystems: the role of nutrients. Springer, New York, pp 337–356
Craine JM (2007) Plant strategy theories: replies to Grime and Tilman. J Ecol 95:235–240 doi:10.1111/j.1365-2745.2007.01212.x
Crawley MJ, Brown SL, Heard MS, Edwards GR (1999) Invasion-resistance in experimental grassland communities: species richness or species identity? Ecol Lett 2:140–148 doi:10.1046/j.1461-0248.1999.00056.x
Ejrnaes R, Brunn HH, Graae BJ (2006) Community assembly in experimental grasslands: suitable environment or timely arrival? Ecology 87:1225–1233 doi:10.1890/0012-9658(2006)87[1225:CAIEGS]2.0.CO;2
Grace JB (1991) A clarification of the debate between Grime and Tilman. Funct Ecol 5:583–587 doi:10.2307/2389475
Grime JP (1997) The humped-back model: a response to Oksanen. J Ecol 85:97–98 doi:10.2307/2960631
Grime JP (1998) Benefits of plant diversity to ecosystems: immediate, filter and founder effects. J Ecol 86:902–910 doi:10.1046/j.1365-2745.1998.00306.x
Grime JP (2007) Plant strategy theories: a comment on Craine (2005). J Ecol 95:227–230 doi:10.1111/j.1365-2745.2006.01163.x
Grimm V, Berger U, Bastiansen F et al (2006) A standard protocol for describing individual-based and agent-based models. Ecol Model 198:115–126 doi:10.1016/j.ecolmodel.2006.04.023
Gross N, Suding KN, Lavorel S, Roumet C (2007) Complementarity as a mechanism of coexistence between functional groups of grasses. J Ecol 95:1296–1305 doi:10.1111/j.1365-2745.2007.01303.x
Guo QF (2003) Temporal species richness–biomass relationships along successional gradients. J Veg Sci 14:121–128 doi:10.1658/1100-9233(2003)014[0121:TSRRAS]2.0.CO;2
Hector A et al (1999) Plant diversity and productivity experiments in European grasslands. Science 286:1123–1127 doi:10.1126/science.286.5442.1123
Herbert DA, Rastetter EB, Gough L, Shaver GR (2004) Species diversity across nutrient gradients: an analysis of resource competition in model ecosystems. Ecosystems (N Y Print) 7:296–310 doi:10.1007/s10021-003-0233-x
Hooper DU (1998) The role of complementarity and competition in ecosystem responses to variation in plant diversity. Ecology 79:704–719
Kenkel NC, Peltzer DA, Baluta D, Pirie D (2000) Increasing plant diversity does not influence productivity: empirical evidence and potential mechanisms. Community Ecol 1:165–170 doi:10.1556/ComEc.1.2000.2.6
Kimura M (1983) The neutral theory of molecular evolution. Cambridge University Press, New York
Klironomos JN, McCune J, Hart M, Neville J (2000) The influence of arbuscular mycorrhizae on the relationship between diversity and productivity. Ecol Lett 3:137–141 doi:10.1046/j.1461-0248.2000.00131.x
Loreau M, Hector A (2001a) Partitioning selection and complementarity in biodiversity experiments. Nature 412:72–76 doi:10.1038/35083573
Loreau M, Hector A (2001b) Partitioning selection and complementarity in biodiversity experiments. Nature 413:548–548 doi:10.1038/35097128
Mazzoleni S, Bonanomi G, Giannino F et al (2007) Is plant biodiversity driven by decomposition processes? An emerging new theory on plant diversity. Community Ecol 8:103–113 doi:10.1556/ComEc.8.2007.1.12
Olofsson J, de Mazancourt C, Crawley MJ (2008) Spatial heterogeneity and plant species richness at different spatial scales under rabbit grazing. Oecologia 156:825–834 doi:10.1007/s00442-008-1038-6
Rees M, Condit R, Crawley M, Pacala S, Tilman D (2001) Long-term studies of vegetation dynamics. Science 293:650–655 doi:10.1126/science.1062586
Reynolds HL, Mittelbach GG, Darcy-Hall TL et al (2007) No effect of varying soil resource heterogeneity on plant species richness in a low fertility grassland. J Ecol 95:723–733 doi:10.1111/j.1365-2745.2007.01252.x
Rosenzweig ML (1995) Species diversity in space and time. Cambridge University Press, New York
Rubinoff D (2006) Utility of mitochondrial DNA barcodes in species conservation. Conserv Biol 20:1026–1033 doi:10.1111/j.1523-1739.2006.00542.x
Rusch GM, Oesterheld M (1997) Relationship between productivity, and species and functional group diversity in grazed and non-grazed Pampas grassland. Oikos 78:519–526 doi:10.2307/3545613
Safford HD, Rejmanek M, Hadac E (2001) Species pools and the “hump-back” model of plant species diversity: an empirical analysis at a relevant spatial scale. Oikos 95:282–290 doi:10.1034/j.1600-0706.2001.950210.x
Schwartz MW, Brigham CA, Hoeksema JD, Lyons KG, Mills MH, van Mantgem PJ (2000) Linking biodiversity to ecosystem function: implications for conservation ecology. Oecologia 122:297–305 doi:10.1007/s004420050035
Smits NAC, Willems JH, Bobbink R (2008) Long-term after-effects of fertilisation on the restoration of calcareous grasslands. Appl Veg Sci 11:279–292
Tilman D (2007) Resource competition and plant traits: a response to Craine et al. 2005. J Ecol 95:231–234 doi:10.1111/j.1365-2745.2007.01201.x
Tilman D, Wedin D, Knops J (1996) Productivity and sustainability influenced by biodiversity in grassland ecosystems. Nature 379:718–720 doi:10.1038/379718a0
Turnbull LA, Rees M, Crawley MJ (1999) Seed mass and the competition/colonization trade-off: a sowing experiment. J Ecol 87:899–912 doi:10.1046/j.1365-2745.1999.00405.x
van Heesch D (1997) Doxygen. www.doxygen.org
Warren JM, Topping CJ (1999) A space occupancy model for the vegetation succession that occurs on set-aside. Agric Ecosyst Environ 72:119–129 doi:10.1016/S0167-8809(98)00168-6
Warren J, Topping CJ (2001) Trait evolution in an individual-based model of herbacious vegetation. Evol Ecol 15:15–35 doi:10.1023/A:1011936121454
Warren J, Topping CJ (2004) A trait specific model of competition in a spatially structured plant community. Ecol Model 180:477–485 doi:10.1016/j.ecolmodel.2004.04.033
Acknowledgements
We thank Raj Whitlock, Chris Thomas, Peter Dennis and Jacob Weiner for advice and help with the manuscript. Chris Topping was supported by the Centre for Integrated Population Ecology.
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The appendices files are currently available at http://www.irs.aber.ac.uk/oddox/.
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Warren, J., Topping, C.J. & James, P. A unifying evolutionary theory for the biomass–diversity–fertility relationship. Theor Ecol 2, 119–126 (2009). https://doi.org/10.1007/s12080-008-0035-z
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DOI: https://doi.org/10.1007/s12080-008-0035-z