0db86a4c-5b10-4a39-b81d-15e1525bb27f
https://ipt.gbif.no/resource?r=halvorsen-shell-bed-vegetation-1979
Presence data for vascular plant, bryophyte and lichen species in 100 vegetation plots (each 1 m2) from 32 shell-beds at Akerøya, Hvaler, SE Norway
Bjørn Petter
Løfall
University of Oslo
Oslo
NO
b.p.lofall@nhm.uio.no
0000-0001-9645-3394
Rune
Halvorsen
University of Oslo
Oslo
NO
rune.halvorsen@nhm.uio.no
0000-0002-6859-7726
Rune
Halvorsen
University of Oslo
Oslo
NO
rune.halvorsen@nhm.uio.no
0000-0002-6859-7726
contentProvider
2022-09-29
eng
We present a data set consisting of abundance data for 106 vascular plant species, 36 bryophyte species and 13 lichen species from 100 vegetation plots, each 1 m2, distributed on 32 shell-beds at Akerøya, Hvaler municipality, former Østfold (in 2022 Viken) county. The plots were analysed with respect to species composition in June 1979. These data formed the basis for the publication: Halvorsen, R. 1980. Numerical analysis and successional relationships of shell-bed vegetation at Akerøya, Hvaler, SE Norway. Norw. J. Bot. Vol. 27 pp. 71-95. Oslo. ISSN 0300-1156.
Occurrence
GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml
Observation
GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml
This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.
1979-06-01
1979-06-30
notPlanned
Rune
Halvorsen
University of Oslo
Oslo
NO
rune.halvorsen@nhm.uio.no
0000-0002-6859-7726
Visual assessment, using the Hult-Sernander-Du Rietz cover scale
100 vegetation plots (each 1 m2) from 32 shell-beds at Akerøya, Hvaler, SE Norway, during July 1979
Species abundance values were obtained by visual assessment, using the Hult-Sernander-Du Rietz cover scale, published, e.g. in Du Rietz, G.E. 1921. Zur metodologischen Grundlage der modernen Pflanzensoziologie. Uppsala. The values of this five-grade ordinal scale are:
Value | Percentage cover (%)
1 | present but <6.25%
2 | 6.25 - 12.5
3 | 12.5 - 25
4 | 25 - 50
5 | 50 - 100
2022-06-27T07:21:18.575+00:00
dataset
Halvorsen, R. 1980. Numerical analysis and successional relationships of shell-bed vegetation at Akerøya, Hvaler, SE Norway. Norw. J. Bot. Vol. 27 pp. 71-95. Oslo. ISSN 0300-1156
Source data, including field notes: Presence data for vascular plant, bryophyte and lichen species in 100 vegetation plots (each 1 m2) from 32 shell-beds at Akerøya, Hvaler, SE Norway
Halvorsen. (1980). Numerical analysis and successional relationships of shell-bed vegetation at Akerøya, Hvaler, SE Norway. Norwegian Journal of Botany, Vol.27, no.2 (1980), S.71–95.
Numerical analysis and successional relationships of shell-bed vegetation at Akerøya, Hvaler, SE Norway.
0db86a4c-5b10-4a39-b81d-15e1525bb27f/v1.8.xml