青藏高原东部植物种子萌发能力与其在群落中相对多度的关系

doi:10.7677/ynzwyj201313062

摘要/Abstract

摘要：

不同演替阶段的群落中植物幼苗建植特性以及幼苗建植时所处的环境都会有所不同。这些差异可能会导致种子萌发率与物种多度之间的关系随着群落的演替阶段而发生改变。目前关于不同类型群落中以及同一类型群落的不同演替阶段物种多度和种子萌发能力之间的关系的研究较少。本研究以全面收集的青藏高原东缘3种常见次生植被（鼢鼠土丘群落、人工草地群落和弃耕地群落）中植物种子为基础，沿着群落演替梯度来探明种子萌发和物种多度之间的关系。通过对结果的线性回归分析发现：在鼢鼠土丘群落和人工草地群落中，种子萌发率和物种多度之间无显著相关性；而在弃耕地群落中，种子萌发率和物种多度之间的关系有随着群落的演替呈现由正相关向负相关转变的趋势。

关键词: 次生植被, 种子萌发, 物种多度, 亚高山草甸, 演替

Abstract:

We haven’t found any studies on the relationship between seed germinability and species abundance at community level. And the relationship between seed germinability and species abundance may differ in communities of different successional stages and vegetation types. This is because communities usually have different biotic and abiotic environmental factors, consequently, the possibility for seedling establishment in them may be different. Yet, no research has tested the relationship between germinability and species abundance along successional gradients in different types of vegetation. We extracted sampling data of the successional gradients in three types of secondary vegetation (zokor mounds, artificial grassland and abandoned arable land), and tested the germination of species appeared in these successional gradients. Then, we tested the relationship between seed germination and species abundance along the successional gradients. Linear regressions showed no significant relationships between seed germination and species abundance in the various successional stages on zokor (a burrowing rodent) mounds or in an Elymus nutans artificial grassland. Although the relationship between seed germination and species abundance in the initial successional stage of abandoned arable land was significantly positive, there was no such relationship in the later successional stages. In abandoned arable land, the magnitude and direction of the relationship between seed germination and species abundance (percentage cover) varied with successional stage, with a positive relationship in the original successional stage and a trend towards a negative relationship as succession progressed.

Key words: Secondary vegetation, Seed germination, Species abundance, Sub-alpine meadow, Succession

中图分类号:

Q 948

张佳宁1、2, 刘坤2. 青藏高原东部植物种子萌发能力与其在群落中相对多度的关系[J]. Plant Diversity, 2013, 35(3): 317-326.

ZHANG Jia-Ning-, LIU Kun-, WANG Jie-Gong. The Relationship between Seed Germinability and Species Abundance in Communities on Eastern QinghaiTibet Plateau[J]. Plant Diversity, 2013, 35(3): 317-326.

参考文献

Alonso D, Etienne PS, McKane AJ, 2006. The merits of neutral theory［J］. Trends in Ecology and Evolution, 21: 451—457
Baskin CC, Baskin JM, 1998. Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination［M］. San Diego: Academic press
Bazzaz FA, 1979. The physiological ecology of plant succession［J］. Annual Review of Ecology and Systematics, 10: 351—371
Bazzaz FA, Pickett STA, 1980. Physiological ecology of tropical succession: a comparative review［J］. Annual Review of Ecology and Systematics, 11: 287—310
Brown JH, 1995. Macroecology［M］. Chicago: University of Chicago Press
Bu HY, Chen XL, Xu XL et al., 2007. Seed mass and germination in an alpine meadow on the eastern TsinghaiTibet plateau［J］. Plant Ecology, 191: 127—149
Chave J, 2004. Neutral theory and community ecology［J］. Ecology Letters, 7: 241—253
Chu CJ, Wang YS, Du GZ et al., 2007.On the balance between niche and neutral processes as drivers of community structure along a successional gradient:insights from alpine and subalpine meadow communities［J］. Annals of Botany, 100: 807—812
Coomes DA, Rees M, Grubb PJ et al., 2002. Are differences in seed mass among species important in structuring plant communities? Evidence from analyses of spatial and temporal variation in duneannual populations［J］. Oikos, 96: 421—432
Donohue K, 2002. Germination timing influences natural selection on lifehistory characters in Arabidopsis thaliana［J］. Ecology, 83: 1006—1016
Donohue K, Dorn L, Griffith C et al., 2005. The evolutionary ecology of seed germination of Arabidopsis thaliana: variable natural selection on germination timing［J］. Evolution, 59: 758—770
Donohue K, de Casas RR, Burghardt L et al., 2010. Germination, postgermination adaptation, and species ecological ranges［J］. Annual Review of Ecology, Evolution and Systematics, 41: 293—319
Du GZ (杜国祯), Wang G (王刚), 1995. Succession and qualitative change of artificial grassland of Gan Nan subalpine meadow［J］. Acta Botanica Sinica (植物学报), 37 (4): 306—313
Edwards GR, Crawley MJ, 1999. Effects of disturbance and rabbit grazing on seedling recruitment of six mesic grassland species［J］. Seed Science Research, 9: 145—156
Fenner M, Thompson K, 2005. The Ecology of Seeds［M］. Cambridge: Cambridge University Press
Galloway LF, 2001. Parental environmental effects on life history in the herbaceous plant Campanula Americana［J］. Ecology, 82: 278—289
Geritz AAH, 1995. Evolutionarily stable seed polymorphism and smallscale spatial variation in seedling density［J］. The American Naturalist, 146: 685—707
Grime JP, Mason G, Curtis AV et al., 1981. A comparativestudy of germination characteristics in a local flora［J］. Journal of Ecology, 69: 1017—1059
Harpole WS, Tilman D, 2006. Nonneutral patterns of species abundance in grassland communities［J］. Ecology Letters, 9: 15—23
Hérault B, 2007. Reconciling niche and neutrality through the Emergent Group approach［J］. Perspectives in Plant Ecology, Evolution and Systematics, 9: 71—78
Hubbell SP, 2005. Neutral theory in community ecology and the hypothesis of functional equivalence［J］. Functional Ecology, 19: 166—172
Leishman MR, Murray BR, 2001. The relationship between seed size and abundance in plant communities: model predictions and observed patterns［J］. Oikos, 94: 151—161
Liu K, Baskin JM, Baskin CC et al., 2011. Effect of storage conditions on germination of 489 species from high elevation grassland of the eastern Tibet Plateau and implications for climate change［J］. American Journal of Botany, 98: 12—19
Mabry CM, 2004. The number and size of seeds in common versus restricted woodland herbaceous species in central Iowa, USA［J］. Oikos, 107: 497—504
Pachepsky E, Crawford JW, Bown JL et al., 2001. Towards a general theory of biodiversity［J］. Nature, 410: 923—926
Parish R, Turkington R, 1990. The colonization of dung pats and molehills in permanent pastures［J］. Canadian Journal of Botany, 68: 1706—1711
Rees M, Westoby M, 1997. Gametheoretical evolution of seed mass in multispecies ecological models［J］. Oikos, 78: 116—126
Ricklefs RE, Schluter D, 1993. Species Diversity in Ecological Communities: Historical and Geographical Perspectives［M］. Chicago: University of Chicago Press
Smith CC, Fretwell SD, 1974. The optimal balance between size and number of offspring［J］. The American Naturalist, 108: 499—506
Thompson K, Grime JP, 1979. Seasonal variation in the seed bank of herbaceous species in ten contrasting habitats［J］. Journal of Ecology, 67: 893—921
Thompson K, Gaston KJ, Band SR, 1999. Range size, dispersal and niche breadth in the herbaceous flora of central England［J］. Journal of Ecology, 87: 150—155
Ulbrich E, 1929. Ranunculaceae novae vel criticae Ⅷ［J］. Notizblatt des Botanischen Gartens und Museums zu BerlinDahlem, 10: 870
Umbanhowar CE, 1992. Early patterns of revegetation of artificial earthen mounds in a northern mixed prairie［J］. Canadian Journal of Botany, 70: 145—150
Venable DL, 2007. Bet hedging in a guild of desert annuals［J］. Ecology, 88: 1086—1090
Wang G (王刚), Du GZ (杜国祯), 1990. Niche analysis of species in vegetative succession on zokor mounds［J］. Chinese Journal of Ecology (植物生态学报), 9 (1): 1—6
Zhang DY (张大勇), Wang G (王刚), Du GZ (杜国祯) et al., 1988. A quantitative study of the vegetation succession on the abandoned arable lands of the subalpine meadow in Gannan prefecture of Gansu province. I Analysis of community composition［J］. Acta Phytoecologica et Geobotanica Sinica (植物生态学与地植物学学报), 12 (4): 283—291
Zong WJ (宗文杰), Liu K (刘坤), Bu HY (卜海燕) et al., 2006. The mode of seed size variation and the effects of seed size on fiftyone species of composite plants in an alpine meadow［J］. Journal of Lanzhou University (Natural Sciences) (兰州大学学报自然科学版), 42 (5): 52—55

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