Tree and stand structure of the non-native Pinus contorta in relation to native Pinus sylvestris and Picea abies in young managed forests in boreal Sweden

Bäcklund, Sofia; Jönsson, Mari; Strengbom, Joachim; Thor, Göran

doi:10.1080/02827581.2017.1364785

Cited by 7 publications

(4 citation statements)

References 35 publications

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“…Moreover, species richness was consistently higher on Scots pine than Norway spruce in all stand age classes. One reason for this might be the deeper bark crevices of Scots pine bark (Hyvärinen et al 1992; Bäcklund et al 2018), which provide a more variable substratum than the comparatively smooth bark of Norway spruce.…”

Section: Discussionmentioning

confidence: 99%

Conifer tree species and age as drivers of epiphytic lichen communities in northern European production forests

et al. 2022

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The epiphytic lichen species richness and community composition was compared for 600 living trees distributed within the interior of 60 Scots pine and Norway spruce monoculture stands in southern Sweden. A higher species richness, and more unique species, was found on trees of Scots pine than of Norway spruce, and distinctive communities were associated with the two tree species. Lichen species composition also shifted between the 30-, 55- and 80-year-old stands, although there was no significant difference in species richness between the different age classes. Tree species and age of the stand explained most of the variation in community composition (41%), with additional variance explained by lichen proximity to the ground (6%) and aspect (1%) (northern/southern side of trunk). Scots pine and Norway spruce share many attributes, such as both being conifers with acidic bark properties and having a similar geographical distribution in Fennoscandia. However, our study showed that species richness and community composition can nevertheless diverge in stands dominated by these two tree species. Since the occurrence of red-listed species was low in these stands, we suggest that 80-year rotations are not long enough for the occurrence of the many rare and specialized lichen species that require old forest structures and long forest continuity in this region.

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Section: Discussionmentioning

confidence: 99%

Conifer tree species and age as drivers of epiphytic lichen communities in northern European production forests

et al. 2022

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“…Lodgepole pine-dominated stands are denser than domestic conifer stands (Bäcklund et al 2018 ). Ground lichen cover was found to be lower in Lodgepole pine stands compared to domestic pine (Bäcklund et al 2015 ) and the needle litter cover was more than three times greater (Nilsson et al 2008 ).…”

Section: Methodsmentioning

confidence: 99%

Adapted forest management to improve the potential for reindeer husbandry in Northern Sweden

Eggers

Roos

Lind

et al. 2023

Ambio

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In northern Sweden, improvements of grazing conditions are necessary for the continuation of traditional, natural pasture-based reindeer husbandry. Ground and tree lichen constitute the main fodder resource for reindeer during winter but have reached critically low levels. Using a forest decision support system, we prescribe adapted forest management to improve the preconditions for reindeer husbandry and compare outcomes with the continuation of current forest management. We found that adapted management increases the forest area with ground lichen habitat by 22% already within 15 years, while a continuation of current management would result in a further decrease in ground lichen. Tree lichen habitat can be retained and increased in all scenarios, which is important in a changing climate. Compared to a continuation of current practices, adapted management with significantly improved conditions for lichen resulted in a decrease in net revenues from wood production by 11–22%.

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“…Other forestry operations detrimental to terrestrial lichens include fertilization, promoting growth of vascular species (Strengbom et al 2008) and in Sweden planting the exotic lodgepole pine (Pinus contorta), native to North America. Introduced in the Swedish RHA in the 1960s due to its productivity being 30% higher than native pine, P. contorta adversely affects terrestrial lichens due to increased litter and dense canopies (Bäcklund et al 2018).…”

Section: Effects Of Extractive Land Use On Grazing Resourcesmentioning

confidence: 99%

Reindeer Husbandry and Global Environmental Change

Horstkotte¹,

Holand²,

Kumpula³

et al. 2022

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This volume offers a holistic understanding of the environmental and societal challenges that affect reindeer husbandry in Fennoscandia today.Reindeer husbandry is a livelihood with a long traditional heritage and cultural importance. Like many other pastoral societies, reindeer herders are confronted with significant challenges. Covering Norway, Sweden and Finland -three countries with many differences and similarities -this volume examines how reindeer husbandry is affected by and responds to global environmental change and resource extraction in boreal and arctic social-ecological systems. Beginning with an historical overview of reindeer husbandry, the volume analyses the realities of the present from different perspectives and disciplines. Genetics, behavioural ecology of reindeer, other forms of land use, pastoralists' norms and knowledge, bio-economy and governance structures all set the stage for the complex internal and externally imposed dynamics within reindeer husbandry. In-depth analyses are devoted to particularly urgent challenges, such as land-use conflicts, climate change and predation, identified as having a high potential to shape the future pathways of the pastoral identity and productivity. These futures, with their risks and opportunities, are explored in the final section, offering a synthesis of the comparative approach between the three countries that runs as a recurring theme through the book. With its richness and depth, this volume contributes significantly to the understanding of the substantial impacts on pastoralist communities in northernmost Europe today, while highlighting viable pathways to maintaining reindeer husbandry for the future. This book will be of great interest to students and scholars of both the natural and social sciences who work on natural resource management, global environmental change, pastoralism, ecology, social-ecological systems, rangeland management and Indigenous studies.

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Tree and stand structure of the non-native Pinus contorta in relation to native Pinus sylvestris and Picea abies in young managed forests in boreal Sweden

Cited by 7 publications

References 35 publications

Conifer tree species and age as drivers of epiphytic lichen communities in northern European production forests

Conifer tree species and age as drivers of epiphytic lichen communities in northern European production forests

Adapted forest management to improve the potential for reindeer husbandry in Northern Sweden

Reindeer Husbandry and Global Environmental Change

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