Summary
Carbon isotope discrimination (Δ) was compared between populations of dominant perennial plant species, differing in life expectancy, in two deserts with contrasting vegetation types. In both deserts, plants of the shorter-lived species showed significantly higher Δ and greater intrapopulation variance in this character compared to the long-lived species. These results indicate underlying differences in gas-exchange physiology, and suggest a positive correlation between water-use efficiency and lifespan in desert plants. Differences in variance for this character may reflect greater microenvironmental variation experienced by shorter-lived plants and/or different forms of selection acting on water-use traits. Spatial distributions were significantly clustered for the shorter-lived species and significantly uniform for the long-lived species, indicating that competition has been important in the development of the long-lived populations. The long-lived Larrea tridentata showed a significant, negative correlation between Δ and Thiessen polygon area, suggesting a positive relationship between water-use efficiency and longevity within this species. This relationship was weakly supported in the other warm desert species, Encelia farinosa, but was not observed within populations of the cold desert species, Gutierrezia microcephala and Coleogyne ramosissima. These results suggest that Δ reflects key aspects of plant metabolism related to lifespan; these differences may ultimately influence interactions among desert plants and the structure of desert plant communities.
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References
Benson L, Darrow R (1957) The trees and shrubs of the southwestern deserts. University of Arizona Press, Tucson, Arizona
Bounds J, West NE (1976) Blackbrush (Coleogyne ramosissima) on Southwest Utah rangelands. Res Rep 27, Utah Agric Exp Sta, Logan, Utah
Clark PJ, Evans FC (1954) Distance to nearest neighbor as a measure of spatial relationships in populations. Ecology 35: 445–453
Cohen D (1970) The expected efficiency of water utilization in plants under different competition and selection regimes. Isr J Bot 19: 50–54
Cowan IR (1982) Regulation of water use in relation to carbon gain in higher plants. In: Lange OL, Nobel PS, Osmond CB, Ziegler H (eds) Encyclopedia of Plant Physiology, New Series, vol 12D. Springer, Heidelberg, pp 589–613
DeLucia EH, Schlesinger WH (1991) Resource-use efficiency and drought tolerance in adjacent Great Basin and Sierran plants. Ecology 72: 51–58
DeLucia EH, Schlesinger WH, Billings WD (1988) Water relations and the maintenance of Sierran conifers on hydrothermally altered rock. Ecology 69: 303–311
Donovan LA, Ehleringer JR (1991) Ecophysiological differences among juvenile and reproductive plants of several woody species. Oecologia 86: 594–597
Donovan LA, Ehleringer JR Contrasting water use patterns among size and life history classes of a semiarid shrub. Funct Ecol, in review
Ehleringer JR (1988) Carbon isotope ratios and physiological processes in aridland plants. In: Rundel PW, Ehleringer JR, Nagy KA (eds) Stable isotopes in ecological research. Springer-Verlag, New York, pp 41–54
Ehleringer JR (1991) 13C/12C fractionation and its utility in terrestrial plant studies. In: Coleman DC, Fry B (eds) Carbon isotope techniques. Academic Press, New York, pp 187–200
Ehleringer JR, Cooper TA (1988) Correlations between carbon isotope ratio and microhabitat in desert plants. Oecologia 76: 562–566
Ehleringer JR, Osmond CB (1989) Stable isotopes. In: Pearcy RW, Ehleringer JR, Mooney HA, Rundel PW (eds) Plant physiological ecology. Chapman and Hall, New York, pp 281–300
Ehleringer JR, Phillips SL, Schuster WSF, Sandquist DR (1991) Differential utilization of summer rains by desert plants. Oecologia 88: 430–434
Ehleringer JR, Phillips SL, Comstock JP (1992) Seasonal variation in the carbon isotopic composition of desert plants. Funct Ecol, accepted pending revision
Farquhar GD, Richards RA (1984) Isotope composition of plant carbon correlates with water-use efficiency of wheat genotypes. Aust J Plant Physiol 11: 539–552
Farquhar GD, Ehleringer JR, Hubick KT (1989) Carbon isotope discrimination and photosynthesis. Annu Rev Plant Physiol Mol Biol 40: 503–537
Fischer RA, Turner NC (1978) Plant productivity in the arid and semiarid zones. Annu Rev Plant Physiol 29: 277–317
Fonteyn PJ, Mahall BE (1978) Competition among desert perennials. Nature 275: 544–545
Fowler N (1986) The role of competition in plant communities in arid and semiarid regions. Annu Rev Ecol Syst 17: 89–110
Geber MA, Dawson TE (1990) Genetic variation in and covariation between leaf gas exchange, morphology, and development in Polygonum arenastrum, an annual plant. Oecologia 85: 153–158
Goldberg DE, Turner RM (1986) Vegetation change and plant demography in permanent plots in the Sonoran Desert. Ecology 67: 695–712
Hubick KT, Shorter R, Farquhar GD (1988) Heritability and genotype x environment interaction of carbon isotope discrimination and transpiration efficiency in peanut (Arachis hypogaea L.). Aust J Plant Physiol 15: 799–813
MacMahon JA (1988) Warm deserts. In: Barbour MG, Billings WD (eds) North American terrestrial vegetation. Cambridge University Press, pp 231–264
MacMahon JA, Schimpf DJ (1981) Water as a factor in the biology of North American desert plants. In: Evans D, Thames J (eds) Water in desert ecosystems. Dowden, Hutchinson, and Ross, Stroudsburg, Pennsylvania, pp 114–171
Martin B, Nienhuis J, King G, Schaefer A (1989) Restriction fragment length polymorphisms associated with water-use efficiency in tomato. Science 243: 1725–1728
Mead R (1971) Models for interplant competition in irregularly distributed populations. In: Patil GP, Pielou EC, Waters WE (eds) Statistical ecology, volume 2. Pennsylvania State University Press, University Park, Pennsylvania pp
Mithen R, Harper JL, Weiner J (1984) Growth and mortality of individual plants as a function of “available area”. Oecologia 62: 57–60
Parker MA (1985) Size-dependent herbivore attack and the demography of an arid grassland shrub. Ecology 66: 850–860
Schuster WSF, Phillips SL, Sandquist DR, Ehleringer JR (1992) Heritability of carbon isotope discrimination in Gutierrezia microcephala. Am J Bot 79: 216–221
Shreve F, Wiggins IL (1964) Vegetation and flora of the Sonoran desert. Stanford University Press, Stanford, California
Smedley MP, Dawson TE, Comstock JP, Donovan LA, Sherrill DE, Cook CS, Ehleringer JR (1991) Seasonal carbon isotope discrimination in a grassland community. Oecologia 85: 314–320
Sokal RR, Rohlf FJ (1981) Biometry. WH Freeman, San Francisco, California
Toft NL, Anderson JE, Nowak RS (1989) Water-use efficiency and carbon isotope composition of plants in a cold desert environment. Oecologia 80: 11–18
Turner RM (1990) Long-term vegetation change at a fully protected Sonoran Desert site. Ecology 71: 464–477
Vasek FC (1980) Creosote bush: long-lived clones in the Mohave desert. Am J Bot 67: 246–255
West NE (1983) Colorado Plateau-Mohavian Blackbrush Semi-desert. In: West NE (ed) Ecosystems of the world, 5. Temperate deserts and semi-deserts. Elsevier, New York, pp 399–411
Whittaker RH, Niering WA (1965) Vegetation of the Santa Catalina Mountains, Arizona: a gradient analysis of the south slope. Ecology 46: 429–452
Yeaton RI, Cody ML (1979) The distribution of cacti along environmental gradients in the Sonoran and Mohave Deserts. J Ecol 67: 529–541
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Schuster, W.S.F., Sandquist, D.R., Phillips, S.L. et al. Comparisons of carbon isotope discrimination in populations of aridland plant species differing in lifespan. Oecologia 91, 332–337 (1992). https://doi.org/10.1007/BF00317620
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DOI: https://doi.org/10.1007/BF00317620