Zobrazeno 1 - 10
of 49
pro vyhledávání: '"V. Westhoff"'
Autor:
A. M. Kooijman, V. Westhoff
Publikováno v:
Vegetatio. 117:133-150
To assess the natural range in habitat parameters of the once common rich-fen bryophyte Scorpidium scorpioides, water chemistry and vegetation were studied in different regions characteristic of its NW-European distribution area: the Netherlands, Ire
Publikováno v:
Phytocoenologia. 24:627-647
Publikováno v:
Biological Conservation. 69:87-96
A survey of historical records revealed that the disappearance of characteristic rich-fen bryophytes such as Scorpidium scorpioides, S. revolvens and Campylium stellatum from the springs of De Mosbeek, the Netherlands, has taken place between 1951 an
Publikováno v:
Aquatic conservation: marine and freshwater ecosystems, 3, 25-41
Aquatic conservation: marine and freshwater ecosystems 3 (1993)
Aquatic conservation: marine and freshwater ecosystems 3 (1993)
1. It is hypothesized that the recent intensification of agricultural practice in the coastal fringe of West Connemara, Ireland, has affected the vegetation of vulnerable ecosystems like lakes and wetlands. 2. Lakes and wetlands, arranged in three tr
Publikováno v:
Phytocoenologia. 20:529-558
The class Littorelletea includes amphiphyte communities on sites with alternating water level in meso- to oligotrophic, stagnant or slowly running, not or hardly polluted, mostly weakly buffered water. The communities are bound to a mineral soil whic
Autor:
V. Westhoff
Publikováno v:
Vegetatio. 62:523-532
Autor:
A. J. M. Roozen, V. Westhoff
Publikováno v:
Vegetatio. 61:23-32
Publikováno v:
Acta Botanica Neerlandica, 37(2), 265-278. Blackwell Publishing
SUMMARY Vegetation changes in a wet dune slack complex have been studied over a period of 23 years, including some dry (1973–1977) and wet (1983–1987) periods. The vegetation was recorded in 1964, 1977, 1983 and 1987 in permanent quadrats. Additi
Autor:
K. V. Sykora, V. Westhoff
Publikováno v:
Acta Botanica Neerlandica. 28:505-512
SUMMARY The effect of desalination on the Juncetum gerardii was studied by means of permanent quadrats from 1933 up to and including 1966. One of the quadrats has been safeguarded against grazing and mowing, while in the other one this management was
Publikováno v:
Tijdschrift Over Plantenziekten. 48:138-212