Om flydeevnen hos frugter af Ræve-Star (Carex vulpina) og skovengenes forsvinden i Danmark
(2009) In Flora og Fauna 114(3-4). p.73-76- Abstract
- The buoyancy of fruits (nutlets in utricles) of the marsh-inhabiting True
Fox Sedge (Carex vulpina) was tested experimentally in stagnant water.
Only 16 % of the seeds had sunk when the experiment was terminated
after 284 days. Seeds did not germinate while floating, but remained fully
viable (average 76 % germination for both floating and sunken seeds). For
comparison, fruits of the grassland species Small-fruited Prickly-sedge
(Carex muricata ssp. pairae) were treated similarly. Most of those seeds
had sunk after three days, with only 4 % still floating after 115 days. The
results suggest that regional dynamics of Carex vulpina may be dependent
on regular... (More) - The buoyancy of fruits (nutlets in utricles) of the marsh-inhabiting True
Fox Sedge (Carex vulpina) was tested experimentally in stagnant water.
Only 16 % of the seeds had sunk when the experiment was terminated
after 284 days. Seeds did not germinate while floating, but remained fully
viable (average 76 % germination for both floating and sunken seeds). For
comparison, fruits of the grassland species Small-fruited Prickly-sedge
(Carex muricata ssp. pairae) were treated similarly. Most of those seeds
had sunk after three days, with only 4 % still floating after 115 days. The
results suggest that regional dynamics of Carex vulpina may be dependent
on regular flooding of its habitats; and that the strong restrictions on
natural meadow hydrology – by forestry and agriculture – is one reason for
the rarity of the species. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1429818
- author
- Bruun, Hans Henrik LU
- organization
- alternative title
- On hydrochorous seed dispersal in Carex vulpina and the demise of forest meadows in Denmark
- publishing date
- 2009
- type
- Contribution to specialist publication or newspaper
- publication status
- published
- subject
- keywords
- seed buoyancy, metapopulation dynamics, Flood meadow conservation
- categories
- Popular Science
- in
- Flora og Fauna
- volume
- 114
- issue
- 3-4
- pages
- 73 - 76
- publisher
- Naturhistorisk Forening for Jylland
- ISSN
- 0015-3818
- language
- Danish
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Plant Ecology and Systematics (Closed 2011) (011004000)
- id
- db59458e-2800-4ed3-9684-7014bf07faf9 (old id 1429818)
- date added to LUP
- 2016-04-01 14:48:40
- date last changed
- 2018-11-21 20:30:24
@misc{db59458e-2800-4ed3-9684-7014bf07faf9,
abstract = {{The buoyancy of fruits (nutlets in utricles) of the marsh-inhabiting True<br/><br>
Fox Sedge (Carex vulpina) was tested experimentally in stagnant water.<br/><br>
Only 16 % of the seeds had sunk when the experiment was terminated<br/><br>
after 284 days. Seeds did not germinate while floating, but remained fully<br/><br>
viable (average 76 % germination for both floating and sunken seeds). For<br/><br>
comparison, fruits of the grassland species Small-fruited Prickly-sedge<br/><br>
(Carex muricata ssp. pairae) were treated similarly. Most of those seeds<br/><br>
had sunk after three days, with only 4 % still floating after 115 days. The<br/><br>
results suggest that regional dynamics of Carex vulpina may be dependent<br/><br>
on regular flooding of its habitats; and that the strong restrictions on<br/><br>
natural meadow hydrology – by forestry and agriculture – is one reason for<br/><br>
the rarity of the species.}},
author = {{Bruun, Hans Henrik}},
issn = {{0015-3818}},
keywords = {{seed buoyancy; metapopulation dynamics; Flood meadow conservation}},
language = {{dan}},
number = {{3-4}},
pages = {{73--76}},
publisher = {{Naturhistorisk Forening for Jylland}},
series = {{Flora og Fauna}},
title = {{Om flydeevnen hos frugter af Ræve-Star (Carex vulpina) og skovengenes forsvinden i Danmark}},
volume = {{114}},
year = {{2009}},
}