Lichen species richness on retained aspens increases with time since clear-cutting

Lundström, Johanna; Jönsson, Fredrik; Perhans, Karin; Gustafsson, Lena

doi:10.1016/j.foreco.2012.12.027

Cited by 37 publications

(28 citation statements)

References 36 publications

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“…Lichen epiphytes are numerous and functionally necessary in forest ecosystems also as being a key cluster for looking environmental modification [1,2]. Lichens are sophisticated plants, living in dependent relationships with fungi and algae, and the pertinent partners are made public as mycobiont and phycobiont, severally.…”

Section: Introductionmentioning

confidence: 99%

Hematological, antioxidant and protective performance of Usnea longissima on chemical induced hepatotoxicity in experimental animals

Verma¹,

Paswan²,

Raj³

et al. 2017

JCLM

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Section: Introductionmentioning

confidence: 99%

Hematological, antioxidant and protective performance of Usnea longissima on chemical induced hepatotoxicity in experimental animals

Verma¹,

Paswan²,

Raj³

et al. 2017

JCLM

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“…Of the various canopy surface types, epiphyte cover arguably has received less attention from the precipitation partitioning research community (Levia andFrost, 2003, 2006). This is surprising as epiphytes are ubiquitous across forest types (e.g., Hölscher et al, 2004;Husk et al, 2004;Zotz, 2005;Pypker et al, 2006a;Hauck, 2009;Lundström et al, 2013;Van Stan et al, 2015), and their coverage, patterns, and forms can significantly alter canopy structural attributes, by (1) closing canopy gaps and connecting edges across, and branches within, individual trees ( Fig. 1a), (2) filling voids in branch crotches and tree holes (Fig.…”

Section: Introductionmentioning

confidence: 99%

A review and evaluation of forest canopy epiphyte roles in the partitioning and chemical alteration of precipitation

Stan

Pypker

2015

Science of The Total Environment

143

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“…In addition, species richness was similar between the two studied retention levels; 10 and 50 m 3 ha -1 (III). Previous studies have also shown that live retained aspens (Hedenås and Hedström, 2007;Lundström et al, 2013) and birch on harvested sites sustain as rich lichen assemblages as do living trees in mature forests. Similarly, lichen species richness has been found to be comparable between old and young forest stands on dead wood substrates .…”

Section: Retention Treesmentioning

confidence: 93%

“…Lumbsch. Epiphytic lichens have been also previously found to colonize living retention trees Lundström et al, 2013), snags (Runnel et al, 2013), as well as stumps and logs (Caruso et al, 2010) on harvested sites 5-18 years post-harvest.…”

Section: Epiphytic Lichens' Occurrence On Harvested Sitesmentioning

confidence: 97%

“…Studies on lichen diversity and survival rates on retention trees show that despite an initial decline of species' abundance after harvest and low survival rates due to high irradiation (Jairus et al, 2009), retained trees can provide habitats for various specialized lichen species (Lõhmus et al, 2006;. Small lichen populations can persist on the living retained trees for over 10 years after harvest Lundström et al, 2013). However, studies in European boreal forests have concentrated mainly on retained aspen trees (Populus tremula L.), and since aspen has quite specific lichen assemblages (Kuusinen, 1996) the results may not be applicable to other tree species.…”

Section: Epiphytic Lichens and Intensive Forest Managementmentioning

confidence: 99%

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Retention forestry and intensified biomass harvest: epiphytic lichen assemblages under opposing ecological effects in pine-dominated boreal forests

Hämäläinen¹

2016

Diss. For.

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Intensive forestry has led to changes in the structure and function of boreal forests and to the endangerment of forest-dwelling species. Different management methods, such as retention forestry, have been developed to counter the negative biodiversity impacts, although forest use has intensified at the same time: for example, stumps and logging residues are commonly harvested for biofuel. This thesis examines the potential impacts of biofuel harvest, retention forestry and prescribed burning on epiphytic lichen assemblages in pine-dominated boreal forests. In addition, post-harvest dynamics of retention trees were studied to assess their capacity to support species diversity in the early successional forests. The study is based on a large, empirical dataset collected in eastern Finland from 24 study sites that were treated experimentally with a combination of retention harvest and prescribed burning, and, additionally, from 13 sites that represent different stages of forest succession.The results show that retention forestry has the potential to maintain pre-harvest legacies and support high lichen diversity on harvested sites: 85 lichen species, including Red-Listed species and dead wood specialists, were recorded on retained Scots pines (Pinus sylvestris L.) or their dead wood legacies 11 years post-harvest. However, the outcome of retention forestry is affected by post-harvest mortality rates and the fall patterns of the retained trees, which in turn differ depending on the retention tree volume, possible application of prescribed burning, and tree-level factors.Prescribed burning of harvested sites increased retention tree mortality rates and decreased epiphytic lichen richness 11-12 years post-fire. However, in combination with high retention volumes, burning created more diverse dead wood habitats than retention forestry alone. Thus, despite the initial negative effect, the application of prescribed burning on part of the harvested sites could eventually increase lichen diversity at the landscape scale.Scots pine stumps on harvested sites hosted 83 lichen species, and may be a valuable habitat resource for wood-dwelling lichens if dead wood volumes in the landscape are otherwise low. Therefore, large-scale stump harvest may decrease lichen diversity. Instead, fine woody debris was found to be a less valuable substrate for epiphytic lichens and could be harvested for biofuel without notable effects on lichen populations.This study shows that retention forestry can be used to enhance lichen species richness in managed forests, while stump harvest has the opposite effect by reducing lichens' habitats. Prescribed burning decreases lichen species richness at the stand scale but may enhance it at the landscape scale, provided that burning is avoided on the most valuable, lichen-rich stands.

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Lichen species richness on retained aspens increases with time since clear-cutting

Cited by 37 publications

References 36 publications

Hematological, antioxidant and protective performance of Usnea longissima on chemical induced hepatotoxicity in experimental animals

Hematological, antioxidant and protective performance of Usnea longissima on chemical induced hepatotoxicity in experimental animals

A review and evaluation of forest canopy epiphyte roles in the partitioning and chemical alteration of precipitation

Retention forestry and intensified biomass harvest: epiphytic lichen assemblages under opposing ecological effects in pine-dominated boreal forests

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