uu.seUppsala universitets publikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Plant Population Dynamics and Biotic Interactions in two Forest Herbs
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Teknisk-naturvetenskapliga fakulteten, Biologiska sektionen, Institutionen för evolutionsbiologi, Evolutionsbiologi.
2003 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

In Sweden today, deciduous woodlands are often restricted to small isolated remnants of what it once was. Managing practices have changed concerning both cattle grazing and logging. Thus, dispersal, habitat requirements and their importance for forest species distributions become a relevant issue. Most of the species found in the deciduous flora are perennial herbs. I have examined population dynamics in the forest perennial Sanicula europaea, and its relation to environmental factors such as grazing, competition and spatial and temporal variation in such factors. Moreover I examined species distributions in relation to dispersal and habitat suitability in S. europaea and Dentaria bulbifera. To understand mechanisms behind the observed patterns I performed a number of experiments.

The results clearly demonstrated that the distribution and abundance of S. europaea was not dispersal limited, whereas the opposite held true for D. bulbifera. Moreover, mollusc exclusion increased recruitment thus influencing population dynamics in D. bulbifera. Leaf losses had negative effects on S. europaea individuals. These negative effects depended both on the extent, frequency and timing of the leaf losses and early losses were more severe than late. Population level effects of grazing were not negative as negative direct effects were counterblanced by positive indirect effects. The positive effects of grazing were mainly in terms of an increased recruitment.

In S. europaea, high variation in a life cycle transition was always coupled to low elasticity, and traits that varied much due to the examined environmental factors had little importance to population growth rate. A population level perspective is required to assess total effects of environmental factors. In perennial organisms such evaluations need to calculate integrated measures of the effects over the entire life cycle. Field studies spanning several years and demographic models are important to achieve these objectives.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis , 2003. , s. 21
Serie
Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1104-232X ; 802
Emneord [en]
Developmental biology, Sanicula europaea, Dentaria bulbifera, Cost of reproduction, grazing, competition, dispersal limitation, patch suitability
Emneord [sv]
Utvecklingsbiologi
HSV kategori
Forskningsprogram
ekologisk botanik
Identifikatorer
URN: urn:nbn:se:uu:diva-3285ISBN: 91-554-5523-9 (tryckt)OAI: oai:DiVA.org:uu-3285DiVA, id: diva2:162321
Disputas
2003-03-07, The lecture hall, Dep. of Plant Ecology, Villavägen 14, Uppsala, Uppsala, 10:00
Opponent
Tilgjengelig fra: 2003-02-14 Laget: 2003-02-14bibliografisk kontrollert
Delarbeid
1. Flowering and cost of reproduction in the perennial herb Sanicula europaea.
Åpne denne publikasjonen i ny fane eller vindu >>Flowering and cost of reproduction in the perennial herb Sanicula europaea.
Manuskript (Annet vitenskapelig)
Identifikatorer
urn:nbn:se:uu:diva-90109 (URN)
Tilgjengelig fra: 2003-02-14 Laget: 2003-02-14 Sist oppdatert: 2010-01-13bibliografisk kontrollert
2. Recruitment in Dentaria bulbifera; the roles of dispersal, habitat quality and mollusc herbivory
Åpne denne publikasjonen i ny fane eller vindu >>Recruitment in Dentaria bulbifera; the roles of dispersal, habitat quality and mollusc herbivory
2002 Inngår i: Journal of Vegetation Science, Vol. 13, s. 719-724.Artikkel i tidsskrift (Fagfellevurdert) Published
Identifikatorer
urn:nbn:se:uu:diva-90110 (URN)
Tilgjengelig fra: 2003-02-14 Laget: 2003-02-14bibliografisk kontrollert
3. Seed availability and recruitment of the perennial herb Sanicula europaea
Åpne denne publikasjonen i ny fane eller vindu >>Seed availability and recruitment of the perennial herb Sanicula europaea
2002 Inngår i: Ecoscience, Vol. 9, s. 526-532.Artikkel i tidsskrift (Fagfellevurdert) Published
Identifikatorer
urn:nbn:se:uu:diva-90111 (URN)
Tilgjengelig fra: 2003-02-14 Laget: 2003-02-14bibliografisk kontrollert
4. Effects of intraspecific and interspecific density on the demography of a perennial herb, Sanicula europaea
Åpne denne publikasjonen i ny fane eller vindu >>Effects of intraspecific and interspecific density on the demography of a perennial herb, Sanicula europaea
2003 Inngår i: Oikos, Vol. 100, s. 317-324.Artikkel i tidsskrift (Fagfellevurdert) Published
Identifikatorer
urn:nbn:se:uu:diva-90112 (URN)
Tilgjengelig fra: 2003-02-14 Laget: 2003-02-14bibliografisk kontrollert
5. The effect of timing and amount of leaf removal on survival, growth and reproduction in the perennial herb Sanicula europaea
Åpne denne publikasjonen i ny fane eller vindu >>The effect of timing and amount of leaf removal on survival, growth and reproduction in the perennial herb Sanicula europaea
Artikkel i tidsskrift (Fagfellevurdert) Submitted
Identifikatorer
urn:nbn:se:uu:diva-90113 (URN)
Tilgjengelig fra: 2003-02-14 Laget: 2003-02-14bibliografisk kontrollert
6. Population dynamics and grazing in the perennial herb Sanicula europaea
Åpne denne publikasjonen i ny fane eller vindu >>Population dynamics and grazing in the perennial herb Sanicula europaea
Manuskript (Annet vitenskapelig)
Identifikatorer
urn:nbn:se:uu:diva-90114 (URN)
Tilgjengelig fra: 2003-02-14 Laget: 2003-02-14 Sist oppdatert: 2010-01-13bibliografisk kontrollert

Open Access i DiVA

fulltekst(226 kB)1097 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 226 kBChecksum SHA-1
541c9fdd142179726f8fa5eb99fb04e6affff770ab2223a65bee699874fb16807517a5e4
Type fulltextMimetype application/pdf
Kjøp publikasjonen >>

Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 1097 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

isbn
urn-nbn

Altmetric

isbn
urn-nbn
Totalt: 1326 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf