Growth rate responses of Lobaria pulmonaria to canopy structure in even-aged and old-growth cedar–hemlock forests of central-interior British Columbia, Canada

Threatened forest lichen Lobaria pulmonaria - its past, present and future in Estonia

“…the selective cutting of forest or woodland, need not be harmful to individual specimens of L. pulmonaria if the host trees and the potential host trees remain intact. Moreover, the increased amount of light may favour the lichen in the habitat (Gauslaa et al, 2006;Coxson & Stevenson, 2007). Therefore we suggest that the restoration of overgrown wooded meadows in which L. pulmonaria is present should be done with special care, because abrupt changes in the light and moisture regime of the habitat likely affect the populations of L. pulmonaria.…”

Canopy macrolichen distribution in a very wet oldgrowth forest landscape of the upper Fraser River watershed.

“…Radies 18 environment creates ideal conditions for growth and establishment (Coxson and Stevenson 2007). Spies and Franklin (1991) postulated that receipt of groundwater flow and attendant transfer of nutrients was a major determinant of the overall growth, development and structure of coastal wet temperate rainforests.…”

“…We used mean monthly minimum temperature for the months March-October in our analysis; this reflected the seasonal time period during which most lichen growth occurs (Coxson and Stevenson 2007). Potential solar insolation was calculated using SAGA-GIS Version 2.0 (Scilands GmbH, Gottingen, Germany) solar radiation model.…”

“…Arboreal lichens have been shown at the site level to be influenced by both age Fredeen 2004, Radies andCoxson 2004) and stand characteristics (Goward and Arsenault 2003, Coxson and Stevenson 2007, Stevenson and Coxson 2008. Therefore, arboreal macrolichens seem to be an appropriate group of organisms with witch to test the effectiveness of an aspatial old-growth theshold policy in ITR forests.…”

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

“…In addition, mountain alder thalli had significantly higher specific thallus masses than subalpine fir; both o f these factors suggest high levels o f UV radiation for L. pulmonaria inhabiting alder phorophytes (Gauslaa et al 2009). Although light availability has the potential to increase the growth of L. pulmonaria in the ITR (Coxson and Stevenson, 2007a), this effect can easily be negated by desiccation and UV damage risks with too much exposure. Light exposure causes an increase in fungal melanin levels, in order to protect photobionts from UV radiation.…”