RAPID POPULATION DIFFERENTIATION IN A MOSAIC ENVIRONMENT. I. THE RESPONSE OF<i>ANTHOXANTHUM ODORATUM</i>POPULATIONS TO SOILS

Snaydon, R. W.

doi:10.1111/j.1558-5646.1970.tb01759.x

Cited by 96 publications

(10 citation statements)

References 43 publications

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“…Regarding the disjunct distribution of plants on these highly metalliferous Soils, it appears that these species could be the product of parallel evolution on different mines from relatives in the neighbouring background areas. This process has been experimentally shown to be operative in grasses (Jowet, 1958(Jowet, , 1964Snaydon, 1970). As would be clear from the data in Table 2, almost all species found on metal-rich soils are the same as on the nonmetalliferous soils.…”

Section: Methods Resultssupporting

confidence: 65%

Geobotanical studies on zinc deposit areas of Zawar mines, Udaipur

Tiagi

Aery

1982

Vegetatio

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This study reveals disjunct distribution patterns of certain plant species on zinc-rich soils in the Zawar mines region near Udaipur. Ten plant species have high constancy and fidelity values on zinc-rich soils in comparison to normal soil. The plant community composed of these species has been named Impatiens balsamina -Triumfettapentandra association. As Impatiens balsamina is the most characteristic species on metal dumps, it can be considered as a local indicator for the metal zinc.

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Section: Methods Resultssupporting

confidence: 65%

Geobotanical studies on zinc deposit areas of Zawar mines, Udaipur

Tiagi

Aery

1982

Vegetatio

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“…While maternal environmental eVects typically decrease over time and often become non-detectable after one or a few generations or even over the course of the oVspring life cycle (Roach and WulV 1987), genetic changes in response to novel environmental conditions are likely to persist longer, even if organisms are no longer exposed to that environment. Adaptive evolutionary changes are expected to reduce any negative Wtness eVects of the environmental perturbation; however, these evolutionary changes also have the potential to inXuence population dynamics (e.g., Yoshida et al 2003Yoshida et al , 2004, ecosystem processes (Wieneke et al 2004;Collins et al 2006), interactions with other community members (Snaydon and Davies 1982;Lau et al 2008), and, most importantly, the magnitude of response to the environmental change itself (Snaydon 1970;Snaydon andDavies 1972, 1982) (reviewed in Hairston et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Transgenerational effects of global environmental change: long-term CO2 and nitrogen treatments influence offspring growth response to elevated CO2

et al. 2008

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Global environmental changes can have immediate impacts on plant growth, physiology, and phenology. Long-term effects that are only observable after one or more generations are also likely to occur. These transgenerational effects can result either from maternal environmental effects or from evolutionary responses to novel selection pressures and are important because they may alter the ultimate ecological impact of the environmental change. Here, we show that transgenerational effects of atmospheric carbon dioxide (CO(2)) and soil nitrogen (N) treatments influence the magnitude of plant growth responses to elevated CO(2) (eCO(2)). We collected seeds from Lupinus perennis, Poa pratensis, and Schizachyrium scoparium populations that had experienced five growing seasons of ambient CO(2) (aCO(2)) or eCO(2) treatments and ambient or increased N deposition and planted these seeds into aCO(2) or eCO(2) environments. We found that the offspring eCO(2) treatments stimulated immediate increases in L. perennis and P. pratensis growth and that the maternal CO(2) environment influenced the magnitude of this growth response for L. perennis: biomass responses of offspring from the eCO(2) maternal treatments were only 54% that of the offspring from the aCO(2) maternal treatments. Similar trends were observed for P. pratensis and S. scoparium. We detected some evidence that long-term N treatments also altered growth responses to eCO(2); offspring reared from seed from maternal N-addition treatments tended to show greater positive growth responses to eCO(2) than offspring from ambient N maternal treatments. However, the effects of long-term N treatments on offspring survival showed the opposite pattern. Combined, our results suggest that transgenerational effects of eCO(2) and N-addition may influence the growth stimulation effects of eCO(2), potentially altering the long-term impacts of eCO(2) on plant populations.

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“…Each study at the level of plant populations will, therefore, require an investigation of the spatial and temporal patterns of environmental factors. However, information on soil variability and its possible ecological or evolutionary implications is rather limited (Davy and Taylor, 1974;Gupta and Rorison, 1975;Snaydon, 1970;Taylor et al, 1982;Veresoglou and Fitter, 1984). Moreover, the smaller the scale of interest, the more difficult it is to infer useful common generalizations from reported case studies.…”

Section: Introductionmentioning

confidence: 99%

“…Detailed soil studies (including data on N mineralization and seasonal variability) in relation to the process of genetic differentiation within plant populations have to our knowledge not yet been published. In one study, population differentiation has been demonstrated over distances of less than 30m in Anthoxanthum odoratum within 40 years, in response to a mosaic of environmental heterogeneity (Snaydon, 1970).…”

Section: Introductionmentioning

confidence: 99%

Temporal and spatial variability in soil nutrient status of a former beach plain

Troelstra¹,

Lotz²,

Wagenaar³

et al. 1990

Plant Soil

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As part of a research project on the variation in life-history characteristics within a population of Plantago major L. ssp. pleiosperma, seasonal and spatial variability in the availability of macronutrients (N, P, and K) were examined on a small scale in the 0-25 cm soil depth at a primary beach plain site, embanked since 1966. On the basis of distinct differences, among other things, in plant biomass, an a priori division into three different types of microhabitat occurring in a mosaic distribution pattern was made: an overall low-lying area (subsite 1) with slightly elevated patches of 0.5 to 1.5 m in diameter (subsite 2) and rather large patches, 20 to 40 m in diameter, of sea buckthorn shrubs, with small and relatively open spots (subsite 3) in the transitional zone from lower area into scrub. All three subsite types were studied within a total area of approximately 2000 m 2.Three methods of analysis were applied: an inventory survey (sampling once at the start of the growing season), an analysis of the seasonal variation (sampling at approximately monthly intervals during the period April-November), and an assessment of nitrogen mineralization potentials in the laboratory (sampling once at the beginning of the growing season). All three procedures clearly demonstrated the occurrence of differences in the availability of nutrients over very short distances, i.e. a pronounced spatial variability among subsites. Particularly the availability of N and P appeared to have increased at the subsites 2 and 3, when compared to subsite 1. This small-scale differentiation in soil properties has occurred in an essentially homogeneous parent material (e.g. in texture and carbonate content) over a period of about 20 years.Besides a spatial variability, statistically significant temporal fluctuations were observed in the availability of N, P, and K. Relative fluctuations of mineral N (as indicated by the range/mean ratio) were especially large at the subsites 2 and 3.

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RAPID POPULATION DIFFERENTIATION IN A MOSAIC ENVIRONMENT. I. THE RESPONSE OFANTHOXANTHUM ODORATUMPOPULATIONS TO SOILS

Cited by 96 publications

References 43 publications

Geobotanical studies on zinc deposit areas of Zawar mines, Udaipur

Geobotanical studies on zinc deposit areas of Zawar mines, Udaipur

Transgenerational effects of global environmental change: long-term CO2 and nitrogen treatments influence offspring growth response to elevated CO2

Temporal and spatial variability in soil nutrient status of a former beach plain

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