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Disturbance interva...
Disturbance interval modulates the starting point for vegetation succession
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- Gustafsson, Lena (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology
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- Johansson, Victor (författare)
- Linköpings universitet,Biologi,Tekniska fakulteten,Calluna AB Linköping Slott 582 28 Linköping Sweden;Department of Physics, Chemistry and Biology (IFM) Linköping University 581 83 Linköping Sweden
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- Leverkus, Alexandro B. (författare)
- Departamento de Ecología Facultad de Ciencias Universidad de Granada Campus Fuentenueva s/n 18071 Granada Spain;Laboratorio de Ecología (iEcolab) Instituto Interuniversitario de Investigación del Sistema Tierra en Andalucía (IISTA) Universidad de Granada 18006 Granada Spain,Univ Granada, Spain; Univ Granada, Spain
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- Strengbom, Joachim (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology
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- Wikberg, Sofie (författare)
- Wikberg Frilansekolog AB 757 56 Uppsala Sweden
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- Granath, Gustaf (författare)
- Uppsala universitet,Växtekologi och evolution,Uppsala Univ, Sweden
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(creator_code:org_t)
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- 2021-07-22
- 2021
- Engelska.
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Ingår i: Ecology. - : John Wiley & Sons. - 0012-9658 .- 1939-9170. ; 102:9
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Increased frequency and new types of disturbances caused by global change calls for deepened insights into possible alterations of successional pathways. Despite current interest in disturbance interactions there is a striking lack of studies focusing on the implication of decreasing times between disturbances. We surveyed forest-floor vegetation (vascular plants and bryophytes) in a Pinus sylvestris–dominated, even-aged production forest landscape, unique because of the presence of stands under a precisely dated disturbance interval gradient, ranging from 0 to 123 yr between clearcutting and a subsequent megafire. Despite a dominance of early-successional species in all burned stands 5 yr after fire, progression of succession was linked to time since the preceding clearcutting disturbance. This was most clearly seen in increased frequency with time since clearcutting of the dominant, late-successional dwarf shrub Vaccinium myrtillus, with surviving rhizomes as an important mechanism for postfire recovery. Our results demonstrate the role of legacy species as significant drivers of succession. We conclude that the starting point for succession is modulated by disturbance interval, so that shortened intervals risk reducing development towards late-successional stages. We suggest that a decrease in long successional sequences caused by more frequent disturbances may represent a general pattern, relevant also for other forest types and ecosystems.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- clearcutting
- disturbance interaction
- disturbance modification
- ecological legacy
- fire
- light
- plants
- succession
- traits
- vegetation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Ecology
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