Predicting canopy macrolichen diversity and abundance within old-growth inland temperate rainforests

Radies, David; Coxson, Darwyn S.; Johnson, Chris J.; Konwicki, Ksenia

doi:10.1016/j.foreco.2009.09.046

Cited by 38 publications

(40 citation statements)

References 44 publications

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“…They indeed qualify for being very sensitive to human activities and are considered pertinent bioindicators and priority targets of conservation programs. Species of Sticta play a crucial role in the calculation of Indices of Ecological Continuity for woodland habitats in the British Isles (Coppins and Coppins 2002), as well as in the Pacific Northwest in North America (Tønsberg and Goward 2001;Doering and Coxson 2010;Radies and Coxson 2004;Radies et al 2009). They also indicate very low levels of nitrogen deposit in forests throughout Europe (Giordani et al 2014) and were recently included in newly designed indices for air quality in the Pacific Northwest (Root et al 2015).…”

Section: Section Editor: Franz Oberwinklermentioning

confidence: 99%

Dismantling the treasured flagship lichen Sticta fuliginosa (Peltigerales) into four species in Western Europe

Magain

Sérusiaux

2015

Mycol Progress

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In the framework of a worldwide project on the phylogeny of the lichen genus Sticta, dedicated sampling was performed in four regions of Western Europe, roughly along an east-west line between N 48°02′ E 07°01′ and N 52°01′ W 09°30′, ranging from France/Vosges to Ireland/ Kerry. Five clearly distinct ITS haplotypes were detected for isidia-producing species where only two were expected. Subtle anatomical and morphological characters, together with a strongly supported 4-loci molecular phylogeny, permit distinguishing, besides the easily recognized S. canariensis and S. limbata: 1) the two well-known S. fuliginosa and S. sylvatica, whose type collections have been carefully reassessed; the former is widespread in both hemispheres, while the latter is correctly identified only from continental Europe and the Andes in Colombia. The barcode ITS of S. fuliginosa differs by a single substitution from S. limbata (with a single exception), and the 4-loci phylogenetic tree does not resolve them as distinct lineages, most probably highlighting a very recent divergence and incomplete lineage sorting. 2) Three species that were formely included in S. fuliginosa: the resurrected S. ciliata Taylor, belonging to a complex group yet to be disentangled and occurring in the Neotropics, Africa, Macaronesia, and Western Europe, and two species described as new to science, S. fuliginoides, found in continental Europe, the Canary Islands, eastern North America, and Colombia, and S. atlantica only known from Ireland and the Azores archipelago. Molecular inferences demonstrate active divergence and dispersion within S. ciliata that may require recognition of further species. Fresh material can be identified with a morphological and anatomical preliminary key provided here. We propose that the taxonomy of all lichen species be urgently reviewed in the light of molecular data in an evolutionary context, particularly those used as bioindicators of environmental change and woodland management.

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Section: Section Editor: Franz Oberwinklermentioning

confidence: 99%

Dismantling the treasured flagship lichen Sticta fuliginosa (Peltigerales) into four species in Western Europe

Magain

Sérusiaux

2015

Mycol Progress

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“…Old-growth coniferous stands in the ITR support exceptionally rich epiphytic lichen communities, especially cyanolichens (Campbell and Fredeen, 2004;Radies and Coxson, 2004;Goward and Spribille, 2005;Radies et al 2009;Spribille et al 2009). This richness is thought to derive from a combination of factors, including a unique combination o f maritime and continental climate, long site continuity, diverse epiphytic substrates, and a landscape-level diversity imposed by mountain topography (Goward and Spribille, 2005).…”

Section: The Inland Temperate Rainforest -A Unique Ecosystemmentioning

confidence: 99%

“…The ITR shares many characteristics with its coastal counterparts, including large diameter western redcedar (Thuja plicata Donn ex D. Don) trees,some speculated to be over 1000 years old (Radies et al 2009), and a dense understory o f devil's club (Oplopanax horridus Miq). The ITR is, however, a globally unique temperate rainforest, in that it is separated from wet coastal areas by a region o f dry climate, and has an unusually (for temperate rainforests) continental winter climate.…”

Section: The Inland Temperate Rainforest -A Unique Ecosystemmentioning

confidence: 99%

“…Unfortunately, in much of the ITR, land management practices have had the opposite effect, where stands with high biodiversity values, such as old forests in wet toeslope positions, have been disproportionately targeted for logging (Radies et al 2009). In the Slim Very Wet Cool Variant of the Interior Cedar-Hemlock Zone (Delong, 2003) o f the upper Fraser River watershed, for instance, old cedar stands now represent less than 7% o f the landscape (Radies et al 2009). Less than 1.5% of the landscape in the ICHvk2 has fully protected area status, raising serious conservation concerns.…”

Section: Chapter 1: Climate Biomonitoring In the Inland Temperate Raimentioning

confidence: 99%

“…In the ITR, cyanolichens are exceptionally abundant and diverse in areas where humidity levels are high (Goward and Arsenault, 2000b;Radies et al 2009). Riparian zones are examples o f humid habitats that serve as important lichen biodiversity hotspots and corridors in western North America, particularly for cyanolichens Peterson and McCune, 2003;Doering and Coxson, 2010), supporting species that are rare or absent from the surrounding upland (non-riparian) forest.…”

Section: Chapter 1: Climate Biomonitoring In the Inland Temperate Raimentioning

confidence: 99%

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Lichens in the inland rainforest: Climate biomonitoring and population structure of Lobaria pulmonaria (L.) Hoffm.

MacDonald¹

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Silvicultural strategies for lichen conservation: Smaller gaps and shorter distances to edges promote recolonization

Bartemucci¹,

Lilles

Gauslaa

2022

Ecosphere

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Conservation of epiphytic lichens in managed forest landscapes relies on understanding limitations to their dispersal and establishment after harvesting. A hot spot for cephalo-and cyanolichens, the Kispiox inland temperate rainforest of British Columbia, Canada, is an example of where forest managers seek silviculture options that allow for forest harvesting to continue, while also conserving threatened species. To characterize colonization of these lichens (including the nationally threatened Nephroma occultum and Lobaria retigera), we quantified thalli on 25-year-old regenerating spruce trees at varying distances from forest edges in logged openings of different sizes surrounded by mature (160 years) or old-growth (≥350 years) forest. Lichen colonization 25 years after logging was influenced by distance from the forest edge, surrounding forest age, and opening size. Total mean colonization and number of species per three branches were 81 thalli and 8 species at the forest edge, declining to 18 and 4, respectively, approximately 50 m into the openings. Colonization of most species reached minimum levels within 80 m. Nationally threatened species and old-forest associates had higher abundances and longer colonization distances in openings surrounded by old-growth forests; whereas widespread species had greater colonization when surrounded by mature forests. Logged gaps <0.6 ha promoted higher and more diverse lichen colonization than clearcuts (>3.8 ha). This study demonstrates that forest managers should consider the spatial patterning of harvesting, with smaller openings and shorter distances between edges (likely in tandem with higher levels of retention) in forests rich in epiphytic lichens to facilitate their recolonization and conservation.

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Predicting canopy macrolichen diversity and abundance within old-growth inland temperate rainforests

Cited by 38 publications

References 44 publications

Dismantling the treasured flagship lichen Sticta fuliginosa (Peltigerales) into four species in Western Europe

Dismantling the treasured flagship lichen Sticta fuliginosa (Peltigerales) into four species in Western Europe

Lichens in the inland rainforest: Climate biomonitoring and population structure of Lobaria pulmonaria (L.) Hoffm.

Silvicultural strategies for lichen conservation: Smaller gaps and shorter distances to edges promote recolonization

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