The Demography of Coenopopulations of Forest Herbs

Falińska, Krystyna

doi:10.1007/978-94-009-5500-4_11

Cited by 13 publications

(8 citation statements)

References 4 publications

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“…And after reaching considerable dimensions, the stools are separated and/or the dead center is created. A similar pattern of clonal expansion by vegetative organs exists for Calluna bushes (Barclay-Estrup & Gimingham 1969) and forest herbs: Mercurialis prennis, Filipendula ulmaria and Germanium robertianum (Falifiska 1985).…”

Section: Regeneration Off Japonica Stems and Stoolsmentioning

confidence: 86%

Structure and dynamics of Japanese beech (Fagus japonica Maxim.) stools and sprouts in the regeneration of the natural forests

Ohkubo

1992

Vegetatio

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Structure and spatial distribution of stools and root-collar sprouts of Japanese beech (Fagus japonica) were studied to clarify the regeneration processes of the stool and the population, and the ecological importance of this stool formation in five quadrats of the natural forests with different forest floor vegetation on the Pacific side of Japan. F. japonica dominates in the canopy of each quadrat. Most of sprouts formed a circle around the root-collar and lowest parts of the parent stems of the stool with the youngest sprouts at the periphery. The regeneration by seedlings was slight especially on the forest floor vegetation of the dwarf bamboo Sasa. The variety of size structure of stems and the existence of dead traces and/or dead center in each stool, the apparent difference in stool size, and the aggregations of stools in the forests suggest that stool expansion and long persistence of the stool at a given location may contribute to compensate for the scarcity of regeneration by seedlings inhibited by dwarf bamboo, and by the other shrubs and herbs.

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Section: Regeneration Off Japonica Stems and Stoolsmentioning

confidence: 86%

Structure and dynamics of Japanese beech (Fagus japonica Maxim.) stools and sprouts in the regeneration of the natural forests

Ohkubo

1992

Vegetatio

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“…Although seed production is common (see VIII C), recruitment of seedlings appears to be rare (Gillot 1925; Mukerji 1936a; Wilson 1968; Faliñska 1982, 1985). Vegetative propagation by rhizome extension and the production of new shoots upon the rhizome is the principal means of expansion.…”

Section: Structure and Physiologymentioning

confidence: 99%

Biological Flora of the British Isles: Mercurialis perennis L.

Jefferson

2008

Journal of Ecology

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Summary1. This account reviews information on all aspects of the biology of Mercurialis perennis that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles : distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, history and conservation. 2. Mercurialis perennis is a dioecious, clonal, perennial forb of woodland, hedgerows, limestone pavement, screes and tall-herb communities. It is very tolerant of low light; it can also grow in unshaded conditions, although higher light flux densities result in lower shoot biomass. It is Eurocaucasic, occurring throughout temperate areas of Europe as far east as the Russian border. 3. Mercurialis perennis occurs on a wide variety of soil types over a pH range from 4.3 to 8.5, although it is most abundant on more base-rich clay or loam soils with a low organic content. It seldom occurs on peat or very sandy soils. It can grow in soils with low availability of macronutrients but it responds positively to nutrient addition from atmospheric or agricultural sources. It is intolerant of waterlogging, mainly because of poor aerenchyma development; its limited capacity to oxygenate the root environment can lead to ferrous ion toxicity. The resulting superficial root development on heavy soils may confer drought susceptibility in summer. 4. Mercurialis perennis is predominantly wind-pollinated. Ants are the main dispersal agents and the seed bears an elaiosome which offers them a lipid-rich reward. Establishment from seed is uncommon and vegetative propagation is the main means of expansion, often leading to dense clonal stands of aerial shoots. 5. Mercurialis perennis has been described as a stress-tolerant competitor. The persistence of its clones and slow dispersal have led to it being regarded an as indicator of ancient, semi-natural woodland.

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“…In several species with similar ecology almost no recruitment from seeds into populations of already established clones was observed, e.g. Convallaria mqalis (Oinonen, 1969), Maianthemum b$olium (Oinonen,197 l), Mercurialis perennis (Falinska, 1985). In a study of Rubus saxatilis, seedlings were found only in one year and in one locality (Eriksson & Bremer, 1993).…”

mentioning

confidence: 99%

Fruit-set and recruitment in populations of Cypripedium calceolus L. in Estonia

Kull

1998

Botanical Journal of the Linnean Society

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The overall mean percentage of fruiting for over 3500 flowers observed in eight Estonian populations of a self-compatible clonal orchid Cyprzpedium calceolus over 11 years was 10.5%. The larger clones set relatively fewer fruits, otherwise the general pattern of fruiting was close to random, despite several significant local deviations from random pollination. There is no cost associated with the fruit-set at the clonal level. The fruit-set which appears pollinator limited was not correlated with the frequency of seedlings in a population. Data presented provide information on the relationship between fruit and seedling production in orchids. The sites suitable for seedling establishment are characterized as having relatively more extensive moss cover, less vascular plant cover, more moisture and better light conditions. Recruitment is concluded to be microsite limited, and the fruit-set to be without significant influence on the fitness of populations.

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The Demography of Coenopopulations of Forest Herbs

Cited by 13 publications

References 4 publications

Structure and dynamics of Japanese beech (Fagus japonica Maxim.) stools and sprouts in the regeneration of the natural forests

Structure and dynamics of Japanese beech (Fagus japonica Maxim.) stools and sprouts in the regeneration of the natural forests

Biological Flora of the British Isles: Mercurialis perennis L.

Fruit-set and recruitment in populations of Cypripedium calceolus L. in Estonia

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