Species‐specific detection of<i>Lobaria pulmonaria</i>(lichenized ascomycete) diaspores in litter samples trapped in snow cover

Walser, Jean‐Claude; Zoller, Stefan; Büchler, Urs; Scheidegger, Christoph

doi:10.1046/j.1365-294x.2001.01353.x

Cited by 69 publications

(79 citation statements)

References 38 publications

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“…Lobaria pulmonaria is widespread (Yoshimura 1998), yet regionally threatened (Wirth et al 1996;Scheidegger et al 2002) and often used as a flagship species in conservation activities of primeval forests (Kondratyuk et al 1998), where it is an indicator of ecological continuity (Rose 1992). Even though the lichen has been suggested to be dispersal-limited (Scheidegger 1995;Walser et al 2001;Walser 2004;Öckinger et al 2005), Werth et al (2006b) and Kalwij et al (2005) found a high proportion of colonised trees in the presumably disturbed area. However, a survey on the genetic diversity of the lichen in this area (Werth et al 2006b) revealed distinct spatial patterns of genotype diversity (Fig.…”

Section: Introductionmentioning

confidence: 97%

Growth dynamics after historic disturbance in a montane forest and its implications for an endangered epiphytic lichen

et al. 2008

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Bolli J.C., Wagner H.H., Kalwij J.M., Werth S., Cherubini P., Scheidegger C. and Rigling A. 2008. Growth dynamics after historic disturbance in a montane forest and its implications for an endangered epiphytic lichen. Bot. Helv. 118: 111 -127.Endangered forest species are often negatively affected by disturbances, which may have long-lasting effects on the distribution, abundance and genetic diversity of such species. To understand the effects of historic disturbances, detailed knowledge of the conditions for survival and recolonisation is needed, and this requires precise information on the perimeter and severity of historic disturbance events. We reconstructed a major historic disturbance (intensive logging followed by windthrow and fire in 1871) in the Swiss Jura mountains to analyse its effect on the disturbancesensitive epiphytic lichen Lobaria pulmonaria. Tree-ring analysis of old and young Norway spruce trees (Picea abies L.), sampled systematically on a 100 m grid, revealed that (1) the disturbance was of intermediate severity, (2) a large, well-defined area of disturbance was created, and (3) an undisturbed zone remained in the centre of the disturbed area. A comparison with lichen genetic data from a previous survey revealed that genetic diversity was particularly high in the remnant zone. These results suggest that the lichen survived there, and that it re-colonised the disturbed area both from the edge and from the remnant undisturbed zone. This illustrates that a detailed reconstruction of historic disturbances, as achieved with dendroecology, is very important for understanding the recolonisation process and thus, the conditions for the long-term persistence of disturbance-sensitive species in a dynamic landscape.

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Section: Introductionmentioning

confidence: 97%

Growth dynamics after historic disturbance in a montane forest and its implications for an endangered epiphytic lichen

et al. 2008

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“…In addition to slow growth rates, dispersal limitations are assumed to play important roles for the lacking success of many epiphytic lichen species in modern forest landscapes with short rotation cycles and a dominance of young and fast-growing forest stands (e.g. Sillett et al 2000;Walser et al 2001;Walser 2004). Nowadays forestry strategies emphasize management for biodiversity maintenance (Humphrey 2005), but lack of basic knowledge still hinders the efforts to develop managing regimes that safeguard both biodiversity and commercial timber harvest.…”

Section: Introductionmentioning

confidence: 99%

Growth and ecophysiological acclimation of the foliose lichen Lobaria pulmonaria in forests with contrasting light climates

et al. 2005

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This study aims to assess biomass and area growth of 600 thalli of the old forest lichen, Lobaria pulmonaria, transplanted to three successional boreal forest stands with (1) natural rainfall regime, (2) additional moistening during dry days, and (3) additional moistening with added nutrients. Mean biomass growth during 100 days varied from 8.3% in the dark young spruce forest to 23.1% in the clear-cut area, with the old forest in between (16.0%). Additional moistening did not enhance lichen growth, probably because the transplantation period was wet. Nutrient additions slightly increased area growth compared to artificial water additions only. Growth was determined by a combination of external (forest stand, site factors) and internal factors (chlorophyll content, biomass per area). Transplants acclimated to high light by increasing thickness and chlorophyll a/b-ratio. Some visible bleaching and a strong positive correlation between chlorophyll content per area and lichen growth in clear-cuts suggest some high light-induced chlorophyll degradation. We believe that biomass growth and natural occurrence of L. pulmonaria is controlled by a delicate balance between light availability and desiccation risk, and that the species is confined to old forests due to a physiological trade-off between growth potential and fatal desiccation damage, both of which increase with increasing light. The discrepancy between potential and realized ecological niches is probably caused by a long-term risk to be killed in open habitats by high light during long periods with no rain.

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“…Ellis and Coppins (2007) stated that Lobaria is very sensitive to environmental changes. Walser et al (2002) also reported that Lobaria is sensitive to acid pollutans in the atmosphere. Even in France, the treesovergrownby Lobaria is protected (van Haluwyn, 1993).…”

Section: Introductionmentioning

confidence: 95%

Mapping and Early Transplantations of Threatened Lobaria Species in Conservation Center, Cibodas Botanical Garden

Lilis¹,

Idwan²,

Setyawati³

2017

Int. J. Curr. Res. Biosci. Plant Biol.

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A b s t r a c t A r t i c l e I n f oThe objective of this research was to investigate the population of Lobaria in Cibodas Botanical Garden, Indonesia.The mapping of Lobaria was conductedon 3724 trees through exploration method and the samples were collected from whole tree trunk surface area with the height of 0-2 m. The transplantations used 20 thalli of 1 cm x 1 cm with 10 thalli for each species. Only two species of Lobaria were found i.e., Lobaria retigera and L.pulmonaria with 16 total thalli and 0.14% of frequency (5 of 3724 trees). The thallus number and frequency of L. retigera were higher (11 thalli; 0.11%) than L. pulmonaria (5 thalli; 0.03%) but smaller total coverage (79.74 cm 2 per m 2 of tree trunk surface area) than L. pulmonaria (117.67 cm 2 per m 2 of tree trunk surface area). Only 11 thalli of transplants (55%) were established succesfully and growth with 4 thalli (20%) of L. retigera and 7 thalli (35%) of L. pulmonaria. Lobaria transplantation was succesfully. Increasing of lobule coverage in L. pulmonaria was 445.89% over 12 months transplantation, but L. retigera was only 33.93%. Increasing of thallus coverage in L. pulmonaria was 104.03% during 12 months transplantation, but L. retigera was only 0.81%.

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Species‐specific detection ofLobaria pulmonaria(lichenized ascomycete) diaspores in litter samples trapped in snow cover

Cited by 69 publications

References 38 publications

Growth dynamics after historic disturbance in a montane forest and its implications for an endangered epiphytic lichen

Growth dynamics after historic disturbance in a montane forest and its implications for an endangered epiphytic lichen

Growth and ecophysiological acclimation of the foliose lichen Lobaria pulmonaria in forests with contrasting light climates

Mapping and Early Transplantations of Threatened Lobaria Species in Conservation Center, Cibodas Botanical Garden

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