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Dvärgagen vid Vombsjön 2013-2021, samt ett nyfynd vid Sövdesjön

Wittzell, Håkan LU (2022) In Botaniska Notiser: utgivna av Lunds botaniska förening (2001-) 155(4). p.1-8
Abstract
Cyperus fuscus was thought to be extinct in Sweden until it was rediscovered at Lake Vombsjön, Skåne, after 63 years in 2013. The species also occurred at the lake 2014—2021, but in very variable numbers. The variation depended largely on the water level during late summer. Favourable conditions in form of low levels in late summer have also occurred prior to 2013, though less frequently than in recent years. It is concluded that 2013 most likely was not the first year since 1950 that Cyperus fuscus occurred at Lake Vombsjön. Data are also presented from Lake Sövdesjön , where the species was discovered for the first time in 2019 and also occurred in 2020 and 2021. Here, the numbers are lower than at Lake Vombsjön, but the occurrence seems... (More)
Cyperus fuscus was thought to be extinct in Sweden until it was rediscovered at Lake Vombsjön, Skåne, after 63 years in 2013. The species also occurred at the lake 2014—2021, but in very variable numbers. The variation depended largely on the water level during late summer. Favourable conditions in form of low levels in late summer have also occurred prior to 2013, though less frequently than in recent years. It is concluded that 2013 most likely was not the first year since 1950 that Cyperus fuscus occurred at Lake Vombsjön. Data are also presented from Lake Sövdesjön , where the species was discovered for the first time in 2019 and also occurred in 2020 and 2021. Here, the numbers are lower than at Lake Vombsjön, but the occurrence seems stable. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Botaniska Notiser: utgivna av Lunds botaniska förening (2001-)
volume
155
issue
4
pages
1 - 8
publisher
Lunds Botaniska Förening
ISSN
1650-3767
language
Swedish
LU publication?
yes
id
14ec6ded-b320-40c2-8803-da4dd90718ad
date added to LUP
2023-02-13 09:13:00
date last changed
2023-02-21 17:16:37
@article{14ec6ded-b320-40c2-8803-da4dd90718ad,
  abstract     = {{Cyperus fuscus was thought to be extinct in Sweden until it was rediscovered at Lake Vombsjön, Skåne, after 63 years in 2013. The species also occurred at the lake 2014—2021, but in very variable numbers. The variation depended largely on the water level during late summer. Favourable conditions in form of low levels in late summer have also occurred prior to 2013, though less frequently than in recent years. It is concluded that 2013 most likely was not the first year since 1950 that Cyperus fuscus occurred at Lake Vombsjön. Data are also presented from Lake Sövdesjön , where the species was discovered for the first time in 2019 and also occurred in 2020 and 2021. Here, the numbers are lower than at Lake Vombsjön, but the occurrence seems stable.}},
  author       = {{Wittzell, Håkan}},
  issn         = {{1650-3767}},
  language     = {{swe}},
  month        = {{12}},
  number       = {{4}},
  pages        = {{1--8}},
  publisher    = {{Lunds Botaniska Förening}},
  series       = {{Botaniska Notiser: utgivna av Lunds botaniska förening (2001-)}},
  title        = {{Dvärgagen vid Vombsjön 2013-2021, samt ett nyfynd vid Sövdesjön}},
  url          = {{https://lup.lub.lu.se/search/files/137751573/Dv_rag.pdf}},
  volume       = {{155}},
  year         = {{2022}},
}