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Rosén, Ejvind
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Publications (10 of 11) Show all publications
Dengler, J., Wagner, V., Dembicz, I., Garcia-Mijangos, I., Naqinezhad, A., Boch, S., . . . Biurrun, I. (2018). GrassPlot - a database of multi-scale plant diversity in Palaearctic grasslands. Phytocoenologia, 48(3), 331-347
Open this publication in new window or tab >>GrassPlot - a database of multi-scale plant diversity in Palaearctic grasslands
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2018 (English)In: Phytocoenologia, ISSN 0340-269X, Vol. 48, no 3, p. 331-347Article in journal (Refereed) Published
Abstract [en]

GrassPlot is a collaborative vegetation-plot database organised by the Eurasian Dry Grassland Group (EDGG) and listed in the Global Index of Vegetation-Plot Databases (GIVD ID EU-00-003). GrassPlot collects plot records (releves) from grasslands and other open habitats of the Palaearctic biogeographic realm. It focuses on precisely delimited plots of eight standard grain sizes (0.0001; 0.001;... 1,000 m(2)) and on nested-plot series with at least four different grain sizes. The usage of GrassPlot is regulated through Bylaws that intend to balance the interests of data contributors and data users. The current version (v. 1.00) contains data for approximately 170,000 plots of different sizes and 2,800 nested-plot series. The key components are richness data and metadata. However, most included datasets also encompass compositional data. About 14,000 plots have near-complete records of terricolous bryophytes and lichens in addition to vascular plants. At present, GrassPlot contains data from 36 countries throughout the Palaearctic, spread across elevational gradients and major grassland types. GrassPlot with its multi-scale and multi-taxon focus complements the larger international vegetationplot databases, such as the European Vegetation Archive (EVA) and the global database " sPlot". Its main aim is to facilitate studies on the scale-and taxon-dependency of biodiversity patterns and drivers along macroecological gradients. GrassPlot is a dynamic database and will expand through new data collection coordinated by the elected Governing Board. We invite researchers with suitable data to join GrassPlot. Researchers with project ideas addressable with GrassPlot data are welcome to submit proposals to the Governing Board.

Keywords
biodiversity, European Vegetation Archive (EVA), Eurasian Dry Grassland Group (EDGG), grassland vegetation, GrassPlot, macroecology, multi-taxon, nested plot, scale-dependence, species-area relationship (SAR), sPlot, vegetation-plot database
National Category
Botany
Identifiers
urn:nbn:se:uu:diva-364515 (URN)10.1127/phyto/2018/0267 (DOI)000440825400006 ()
Available from: 2018-11-05 Created: 2018-11-05 Last updated: 2018-11-05Bibliographically approved
Riibak, K., Reitalu, T., Tamme, R., Helm, A., Gerhold, P., Znamenskiy, S., . . . Päärtel, M. (2015). Dark diversity in dry calcareous grasslands is determined by dispersal ability and stress-tolerance. Ecography, 38(7), 713-721
Open this publication in new window or tab >>Dark diversity in dry calcareous grasslands is determined by dispersal ability and stress-tolerance
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2015 (English)In: Ecography, ISSN 0906-7590, E-ISSN 1600-0587, Vol. 38, no 7, p. 713-721Article in journal (Refereed) Published
National Category
Biological Sciences
Research subject
Biology with specialization in Ecological Botany
Identifiers
urn:nbn:se:uu:diva-260182 (URN)10.1111/ecogr.01312 (DOI)000357135900007 ()
Note

Funding: the Swedish Inst. Visby Programme, the Royal Swedish Academy of Agriculture and Forestry, the Estonian Research Council, the institutional research funding IUT20-29 of the Estonian Ministry of Education and Research and by the European Union through the European Regional Development Fund (Centre of Excellence FIBIR).

Available from: 2015-08-17 Created: 2015-08-17 Last updated: 2017-04-28Bibliographically approved
Reitalu, T., Helm, A., Pärtel, M., Bengtsson, K., Gerhold, P., Rosén, E., . . . Prentice, H. C. (2014). Determinants of fine-scale plant diversity in dry calcareous grasslands within the Baltic Sea region. Agriculture, Ecosystems & Environment, 182(SI), 59-68
Open this publication in new window or tab >>Determinants of fine-scale plant diversity in dry calcareous grasslands within the Baltic Sea region
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2014 (English)In: Agriculture, Ecosystems & Environment, ISSN 0167-8809, E-ISSN 1873-2305, Vol. 182, no SI, p. 59-68Article in journal (Refereed) Published
Abstract [sv]

We used an extensive dataset (1220 vegetation plots of 1 m(2)) to study vegetation gradients and fine-scale plant diversity in dry calcareous grasslands (including alvar grasslands) in the Baltic Sea region. The study area covers the entire European distributional range of alvar habitats: Sweden (Oland, Gotland, Gotaland), Estonia (Saaremaa, Hiiumaa, north Estonia, west Estonia), and western Russia (Izhora, lzborsk). Fine-scale plant diversity was characterized by species richness and standardized phylogenetic diversity (comparing the observed mean pairwise phylogenetic distance (MPD) with MPD values from random communities). Ordination techniques (DCA) were used to characterize the main vegetation gradient. Variables describing local environment, climate, the biogeographic composition of the plant communities, and geographic location were related to fine-scale species richness and phylogenetic diversity using variation partitioning techniques and linear mixed models. The main vegetation gradient in the dry calcareous grasslands in the Baltic Sea region had a strong geographic component, was associated with soil depth, species' stress- and disturbance-tolerance and the age of the grassland habitat. Fine-scale phylogenetic diversity and species richness were negatively associated suggesting that these two diversity components are influenced by different sets of environmental and historical parameters. Fine-scale species richness was unimodally associated with the main vegetation gradient, and the highest levels of species richness were found under intermediate environmental (disturbance, light conditions and temperature) conditions where there was a mixture of species from different biogeographic regions. In contrast to species richness, fine-scale phylogenetic diversity was negatively associated with the main vegetation gradient. The highest phylogenetic diversity was found in the extremely thin-soiled alvar grasslands in Gotaland and on the Baltic islands (especially on Oland) where the high phylogenetic diversity is likely to be a reflection of a long history of continuous openness that has allowed time for the "collection" of phylogenetically different species within these unique habitats.

Place, publisher, year, edition, pages
Elsevier, 2014
Keywords
Alvar Biogeographic Habitat history Immigration histories Phylogenetic clustering Species density Standardized effect size
National Category
Biological Sciences
Research subject
Ecological Botany
Identifiers
urn:nbn:se:uu:diva-212966 (URN)10.1016/j.agee.2012.11.005 (DOI)000332821500006 ()
Available from: 2013-12-17 Created: 2013-12-17 Last updated: 2017-12-06Bibliographically approved
Bakker, J. P., Hoffmann, F., Ozinga, W. A. & Rosén, E. (2014). Shading results in depletion of the soil seed bank. Nordic Journal of Botany, 32(5), 674-679
Open this publication in new window or tab >>Shading results in depletion of the soil seed bank
2014 (English)In: Nordic Journal of Botany, ISSN 0107-055X, E-ISSN 1756-1051, Vol. 32, no 5, p. 674-679Article in journal (Refereed) Published
Abstract [en]

To what extent is the decline of characteristic dry alvar species related to the decline in the soil seed bank during scrub encroachment? We recorded the number of flower stems in the vegetation in relation to light attenuation along an encroachment series progressing from open alvar through small gaps inside dense scrub of Juniperus communis (cover of 60%) to intact dense scrub (cover of 100%) on the island of oland, Sweden. This measurement of potential reproduction (number of flower stems) was then compared to the number of species in the soil seed bank at each site along the alvar encroachment series. Scrub encroachment results in light attenuation between and under the shrubs. The total number of flower stems averaged over all species was similar between gaps and open alvar, but that of alvar species was significantly lower in the gaps, indicating that light attenuation could reduce their seed set. Shading in gaps is related to depletion of the soil seed bank and loss of alvar species, particularly those that do not form a persistent soil seed bank.

National Category
Ecology
Identifiers
urn:nbn:se:uu:diva-238592 (URN)10.1111/j.1756-1051.2013.00288.x (DOI)000344353800024 ()
Available from: 2014-12-16 Created: 2014-12-14 Last updated: 2017-12-05Bibliographically approved
Bakker, J. P., Rosén, E., Ozinga, W. A., Bretfeld, M., Feldt, T. & Stahl, J. (2012). Long-term effects of scrub clearance and litter removal on the re-establishment of dry alvar grassland species. Annales Botanici Fennici, 49(1-2), 21-30
Open this publication in new window or tab >>Long-term effects of scrub clearance and litter removal on the re-establishment of dry alvar grassland species
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2012 (English)In: Annales Botanici Fennici, ISSN 0003-3847, E-ISSN 1797-2442, Vol. 49, no 1-2, p. 21-30Article in journal (Refereed) Published
Abstract [en]

Many characteristic dry alvar grassland species disappear after cessation of livestock grazing as a result of encroachment by Juniperus communis. We studied the re-establishment of these species after scrub clearance with and without the removal of the layer of litter and mosses in long-term (14 years) permanent plots. Most of the species belonging to the community species pool of dry alvar grassland species before clearance were found in permanent plots between 2 and 14 years after the clearance. A large part originated from vegetative spread of already occurring species in the established vegetation in the surroundings. Only a small part of the long-term persistent soil seed bank resulted in the re-establishment of alvar species. There was no significant difference in the traits soil seed bank, seed weight and long-distance dispersal by wind, dung or fur of animals of established and non-established species. Removal of litter and mosses positively affected the re-establishment of alvar species.

National Category
Biological Sciences
Identifiers
urn:nbn:se:uu:diva-174721 (URN)000303272200004 ()
Available from: 2012-05-28 Created: 2012-05-25 Last updated: 2017-12-07Bibliographically approved
Rosén, E. (2006). Alvar vegetation of Öland – changes, monitoring and restoration. Proceedings of the Royal Irish Academy, 106B, 387-399
Open this publication in new window or tab >>Alvar vegetation of Öland – changes, monitoring and restoration
2006 (English)In: Proceedings of the Royal Irish Academy, Vol. 106B, p. 387-399Article in journal (Refereed) Published
Identifiers
urn:nbn:se:uu:diva-24182 (URN)
Available from: 2007-02-04 Created: 2007-02-04 Last updated: 2011-01-11
Rosén, E. & Bakker, J. (2005). Effects of agri-environment schemes on scrub clearance, livestock grazing and plant diversity in a low-intensity farming system on Öland, Sweden. Basic and Applied Ecology, 6, 195-204
Open this publication in new window or tab >>Effects of agri-environment schemes on scrub clearance, livestock grazing and plant diversity in a low-intensity farming system on Öland, Sweden
2005 (English)In: Basic and Applied Ecology, Vol. 6, p. 195-204Article in journal (Refereed) Published
Identifiers
urn:nbn:se:uu:diva-77072 (URN)
Available from: 2006-03-10 Created: 2006-03-10 Last updated: 2011-01-11
Rosén, E. & Bakker, J. P. (2005). Effects of agri-environmental schemes on scrub clearance, livestock grazing and plant diversity in a low-intensity farming system on Öland, Sweden. Basic and Applied Ecology, 6, 195-204
Open this publication in new window or tab >>Effects of agri-environmental schemes on scrub clearance, livestock grazing and plant diversity in a low-intensity farming system on Öland, Sweden
2005 (English)In: Basic and Applied Ecology, Vol. 6, p. 195-204Article in journal (Refereed) Published
Keywords
cattle, sheep, changes in land use, vegetation structure, regeneration, anthills, permanent plots
National Category
Ecology
Identifiers
urn:nbn:se:uu:diva-75909 (URN)
Available from: 2006-02-22 Created: 2006-02-22 Last updated: 2011-01-11
Rosén, E. (2005). Kultur och natur i Gråborg och Borgs by på Öland. : Kungliga Vitterhetsakademien, Stockholm
Open this publication in new window or tab >>Kultur och natur i Gråborg och Borgs by på Öland
2005 (Swedish)Book (Other (popular scientific, debate etc.))
Place, publisher, year, edition, pages
Kungliga Vitterhetsakademien, Stockholm, 2005. p. 1-102
Keywords
Brukningshistoria, naturvärden, landskapsförändring, odlingsmark, besöksmål
National Category
Ecology
Identifiers
urn:nbn:se:uu:diva-75929 (URN)91-7402-351-9 (ISBN)
Available from: 2007-04-16 Created: 2007-04-16
Mitlacher, K., Poschlod, P., Rosén, E. & Bakker, J. (2002). Restoration of wooded meadows: a comparative analysis along a chronosequence on Öland (Sweden). Journal of Applied Vegetation Science, 5, 63-73
Open this publication in new window or tab >>Restoration of wooded meadows: a comparative analysis along a chronosequence on Öland (Sweden)
2002 (English)In: Journal of Applied Vegetation Science, Vol. 5, p. 63-73Article in journal (Refereed) Published
Identifiers
urn:nbn:se:uu:diva-24200 (URN)
Available from: 2007-02-04 Created: 2007-02-04 Last updated: 2011-01-13
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