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Bryophyte species richness and composition in young forests regenerated after clear-cut logging versus after wildfire and spruce budworm outbreak
Stockholm University, Faculty of Science, Department of Botany.
Stockholm University, Faculty of Science, Department of Botany.
2011 (English)In: Biodiversity and Conservation, ISSN 0960-3115, E-ISSN 1572-9710, Vol. 20, no 12, 2575-2596 p.Article in journal (Refereed) Published
Abstract [en]

The disturbance regime in mixed-wood forests of eastern Canada is characterized by both natural disturbances including wildfires and insect outbreaks as well as forestry. The understanding of how understorey plant assemblages respond to different disturbances is mostly limited to short-term wildfire-logging comparisons of vascular plants. Here, we compare patterns of species richness and composition of four bryophyte guilds in young forests (approx. 40 years old) regenerating after clear-cut logging, wildfire, and spruce budworm outbreak. In addition, young forests were compared with mature spruce-fir dominated stands (approx. 90 years old). Although similar in overall species richness at the scale of 1,000 m(2) all young forest types were compositionally distinct with fewer species than mature forests. Stands developed after spruce budworm outbreaks had the highest canopy cover values and the highest surface area of coarse woody debris. These stands had similar numbers of woody debris species as mature forests and were closest to mature forests in species composition. Wildfire-disturbed sites were dominated by deciduous trees and a high number of treebase species. Finally, young managed forest had the highest number of forest floor bryophytes at the scale of 100 m(2) among the three young forest types, but was compositionally far from mature forests in their woody debris flora. In conclusion, young forests regenerating after natural disturbances are distinctly different from young forests regenerated after clear-cutting and if natural disturbances are eliminated certain species (e. g., epixylic and treebase species) might become more restricted to older stands in the landscape.

Place, publisher, year, edition, pages
2011. Vol. 20, no 12, 2575-2596 p.
Keyword [en]
Acadian forest, Disturbance, Forestry, Landscape diversity, Succession
National Category
Ecology Environmental Sciences
URN: urn:nbn:se:su:diva-70867DOI: 10.1007/s10531-011-0092-2ISI: 000297200000003OAI: diva2:483489
authorCount :3Available from: 2012-01-25 Created: 2012-01-24 Last updated: 2012-01-25Bibliographically approved

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Hylander, Kristoffer
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