Les Pelouses Sèches Des Dunes De La Côte Néerlandaise

Boerboom, J.H.A.

doi:10.1111/j.1438-8677.1957.tb00602.x

Cited by 13 publications

(7 citation statements)

References 8 publications

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“…Taraxacum is very common throughout the country; it is mostly found at trodden sites, in road-sides and in fertilized and grazed pastures. Since Taraxacum was only recently treated monographically, data concerning the ecology and distribution of the Dutch microspecies are scarce and, besides, the ecological records are mainly of a phytosociological nature (BOERBOOM 1957(BOERBOOM , 1960DEN Nus et al 1978;DOING 1964DOING ,1966FENGLER 1978;HAGENDUK et al 1975HAGENDUK et al , 1982LOENHOUD & DuYTS 1981;LONDO 1978;OOSTERVELD 1978;WESTHOFF & DEN HELD 1975). Representatives of the sect.…”

Section: Introductionmentioning

confidence: 99%

“…Vegetation sampling and description Dune grasslands are usually inhomogeneous and have a mozaic-like vegetation pattern. They have mostly been analysed by means of the methods of the French-Swiss school of phytosociology (BOERBOOM 1957, DOING 1964, and in the present inquiry the same technique was followed. The releves were made in the usual way of 3 x 3 m 2 sample plots in physiognomically homogeneous vegetation differentiants (GROENHART in prep.).…”

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confidence: 99%

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Aspects of the Ecology of Some Microspecies of Taraxacum in the Netherlands

Sterk

Groenhart

Mooren

1983

Acta Botanica Neerlandica

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SUMMARY The present report deals with the dandelion flora of 78 lots of grassland from the coastal area and from the interior. It appeared that grassland types under the same agricultural management and with a similar phytosociological character also exhibit a similarity in their Taraxacum flora; when they differ in these respects they also have a different dandelion flora, which differences tend to increase as the vegetational and agricultural differences become greater. Several microspecies of the section Taraxacum may occur sympatrically in the same type of pasture, the stronger the manuring and grazing the greater the number of co‐existing taxa (up to 19 per 125 m2 have been recorded). In near‐natural dune habitats representatives of the sections Erythrosperma and Obliqua are the most common, in grazed ones the number of taxa belonging to these two sections tends to be lower. Representatives of the sections Palustria and Spectabilia have exclusively been found in unfertilized or but lightly fertilized grasslands and are now of rare occurrence. Those of sect. Taraxacum are very common and are frequently encountered in agricultural pasture land, the number of microspecies represented increasing as the agricultural pressure increases. It proved to be possible to distinguish within these sections microspecies with a broad ecological range and other ones with a much narrower amplitude, the latter apparently being more specialized ecologically. Among the Taraxacum microspecies those with a broad ecological tolerance find their optimum in the not strongly fertilized and grazed pastures and they may, therefore, be regarded as the older microspecies among the Dutch Taraxacum aggregate. The microspecies from heavily fertilized and grazed pastures must be considered to be specialized and apparently constitute the youngest among the complex.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Aspects of the Ecology of Some Microspecies of Taraxacum in the Netherlands

Sterk

Groenhart

Mooren

1983

Acta Botanica Neerlandica

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“…maritima Schweig. as stated by BOERBOOM (1957) and by WESTHOFF & DEN HELD (1969); the ssp. maritima is related with the East-European ssp.…”

Section: Introductionmentioning

confidence: 81%

“…The stands of vegetation on the plots EI, E2, E3 and E5 belong to the Anthyllido-Silenetum, which association is chiefly found on northfacing slopes and in dry dune valleys in the calciferous dunes between Bergen and Scheveningen. In the so-called "Waddendistrict" (HEUKELS- VAN OOSTSTROOM 1970) this association does not occur; and outside the Netherlands it has not been recorded either (BOERBOOM 1957). This association belongs to the alliance Galio-Koelerion of which Anthyllis vulneraria is a characteristic species.…”

Section: Some Ecological Data Relating To the Permanent Plotsmentioning

confidence: 98%

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Demographic Studies of Anthyllis Vulneraria L. In the Netherlands

Sterk

1975

Acta Botanica Neerlandica

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In the course of 4 to 6 years demographic studies were made of several coastal populations of Anthyllis vulneraria L. var. langei Jalas and of an inland population of the var. vulneraria. Fluctuations in the population density, in the biomass and in the rate of flowering were recorded, and in addition the relation between life span and flower production was investigated.Coastal populations appear to exhibit a far greater fluctuation in density, annual biomass production and rate of flowering than the inland population studied. These different degrees of fluctuation are associated with differences in the environment. In the interior, fewer flowers are produced per plant and the plants more often flower only once, whilst more plants start flowering at a later age than is the case in coastal populations. The differences in the pattern of flowering are most probably correlated with the denser stands of vegetation at the site in the interior where the mutual competition among the plants is stronger. The total life-span of the plants appears to be about the same near the coast and in the interior. Coverage: mosses and lichensRe leve E I: Hypnum cupressiforme L. var. elatum B.S. 70%, Dicranum scoparium Hedw. 20%; Re le ve E 2: Hypnum cupressiforme L. var. elatum B.S. 20%, Dicranum scoparium Hedw. 20%, Cladonia impexa Harm. p, Cladonia pityrea (Florke) Fr. a, Cladonia rangiformis Hoffm. p, Cladonia furcata Schrad. a; Re le ve E 3: Hypnum cupressiforme L. var. elatum B.S. 50%; Re lev e E 5: Hypnum cupressiforme L. var. elatum B.S. 40%; Re le ve T: Cladonia furcata Schrad. p, Cladonia rangiformis Hoffm. p, Peltigera spuria (Ach.) DC. r, Cladonia chlorophaea Spreng. p, Ceratodon purpureus Brid. p, Tortula ruralis Ehrh. p; Re leve W: Fissidens taxifolius Hedw. 02, Camptothecium lutescens (Hedw.) B. and G. a, Campylium chrysophyllum (Brid.) Lange a, Pseudoscleropodium purum (Hedw.) Fleisch. a, Weissia controversa Hedw. p, Brachythecium rutabulum (L.) B.S.

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Beziehungen Zwischen Pflanzengesellschaften und Molluskenfauna

Maarel

1966

Biosoziologie

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Les Pelouses Sèches Des Dunes De La Côte Néerlandaise

Cited by 13 publications

References 8 publications

Aspects of the Ecology of Some Microspecies of Taraxacum in the Netherlands

Aspects of the Ecology of Some Microspecies of Taraxacum in the Netherlands

Demographic Studies of Anthyllis Vulneraria L. In the Netherlands

Beziehungen Zwischen Pflanzengesellschaften und Molluskenfauna

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