Mapping Lichen Diversity as a First Step for Air Quality Assessment

Pinho, Pedro; Augusto, Sofia; Branquinho, Cristina; Bio, Ana; Pereira, Maria João Veloso da Costa Ramos; Soares, Amílcar; Catarino, Fernando

doi:10.1007/s10874-004-1253-4

Cited by 59 publications

(38 citation statements)

References 23 publications

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“…The number of lichen species was in the same range as those observed in other European forests: e.g., in Italy (Giordani, 2007), Slovenia (Poličnik et al, 2008), or Portugal (Pinho et al, 2004); the Shannon index, however, showed higher values compared to other European and North American forested sites (Mulligan, 2009;Peterson and McCune, 2001). But, this range was higher than in boreal environments (Kuusinen, 1996), probably in relation to specific climate conditions in cold regions.…”

Section: Lichen Diversity and Communitiessupporting

confidence: 61%

Evaluation of lichen species resistance to atmospheric metal pollution by coupling diversity and bioaccumulation approaches: A new bioindication scale for French forested areas

Agnan

Probst

Séjalon‐Delmas

2017

Ecological Indicators

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To cite this version:Y. Agnan, A. Probst, N. Séjalon-Delmas. Evaluation of lichen species resistance to atmospheric metal pollution by coupling diversity and bioaccumulation approaches: A new bioindication scale for French forested areas. Ecological Indicators, Elsevier, 2017Elsevier, , 72, pp.99-110. <10.1016Elsevier, /j.ecolind.2016 b s t r a c tIn order to evaluate the metal resistance or sensitivity of lichen species and improve the bioindication scales, we studied lichens collected in eight plottings in French and Swiss remote forest areas. A total of 92 corticolous species was sampled, grouped in 54 lichen genera and an alga. Various ecological variables were calculated to characterize the environmental quality -including lichen diversity, lichen abundance, and Shannon index -, as well as lichen communities. Average ecological features were estimated for each study site and each of the following variables -light, temperature, continentality, humidity, substrate pH, and eutrophication -and they corresponded to lichen communities. Based on lichen frequencies, we calculated the index of atmospheric purity (IAP) and lichen diversity value (LDV). These two bioindication indices were closely related to lichen diversity and lichen abundance, respectively, due to their calculation formula. It appeared that LDV, which measures lichen abundance, was a better indicator of metal pollution than IAP. Coupling lichen diversity and metal bioaccumulation in a canonical correspondence analysis, we evaluated the resistance/sensitivity to atmospheric metal pollution for the 43 most frequent lichen species. After validation by eliminating possible influences of acid and nitrogen pollutions, we proposed a new scale to distinguish sensitive species (such as Physconia distorta, Pertusaria coccodes, and Ramalina farinacea) from resistant species (such as Lecanactis subabietina, Pertusaria leioplaca, and Pertusaria albescens) to metal pollution, adapted to such forested environment.

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Section: Lichen Diversity and Communitiessupporting

confidence: 61%

Evaluation of lichen species resistance to atmospheric metal pollution by coupling diversity and bioaccumulation approaches: A new bioindication scale for French forested areas

Agnan

Probst

Séjalon‐Delmas

2017

Ecological Indicators

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“…The establishment of CLEs for ammonia has been mostly grounded on empirical work (Bobbink et al, 2011;Fenn et al, 2008), quantifying the effect of increasing [NH 3 ] atm on a receptor (Cape et al, 2009). In fact, due to lichens dependence on atmospheric nutrition, lichens respond directly to atmospheric pollution, making them ideal to establish thresholds of airborne N. Lichens have frequently been used to assess the effects of industrial pollution (Augusto et al, 2009;Branquinho et al, 2008;Giordani, 2007;Pinho et al, 2004) providing spatially explicit information on the effects of those pollutants (Pinho et al, 2008a, b). For both CLOs and CLEs, lichen communities have been used as one of the most sensitive receptors; recent proposal for revision of CLEs was mainly based on alterations in lichen communities (Cape et al, 2009;Fenn et al, 2008) and the most recent CLOs established for a large number of ecosystems were also based on lichens (Bobbink et al, 2011).…”

Section: P Pinho Et Al: Critical Loads Of Nitrogen Deposition and Cmentioning

confidence: 99%

“…1) ensuring that the trees had no branches at sampling height, no signs of disease and that the deviation from vertical was less than 10 • (Pinho et al, 2004). Lichens Fig.…”

Section: Study Site and Samplingmentioning

confidence: 99%

Critical loads of nitrogen deposition and critical levels of atmospheric ammonia for semi-natural Mediterranean evergreen woodlands

et al. 2012

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Abstract. Nitrogen (N) has emerged in recent years as a key factor associated with global changes, with impacts on biodiversity, ecosystems functioning and human health. In order to ameliorate the effects of excessive N, safety thresholds such as critical loads (deposition fluxes) and levels (concentrations) can be established. Few studies have assessed these thresholds for semi-natural Mediterranean ecosystems. Our objective was therefore to determine the critical loads of N deposition and long-term critical levels of atmospheric ammonia for semi-natural Mediterranean evergreen woodlands. We have considered changes in epiphytic lichen communities, one of the most sensitive comunity indicators of excessive N in the atmosphere. Based on a classification of lichen species according to their tolerance to N we grouped species into response functional groups, which we used as a tool to determine the critical loads and levels. This was done for a Mediterranean climate in evergreen cork-oak woodlands, based on the relation between lichen functional diversity and modelled N deposition for critical loads and measured annual atmospheric ammonia concentrations for critical levels, evaluated downwind from a reduced N source (a cattle barn). Modelling the highly significant relationship between lichen functional groups and annual atmospheric ammonia concentration showed the critical level to be below 1.9 µg m −3 , in agreement with recent studies for other ecosystems. Modelling the highly significant relationship between lichen functional groups and N deposition showed that the critical load was lower than 26 kg (N) ha −1 yr −1 , which is within the upper range established for other semi-natural ecosystems. Taking into account the high sensitivity of lichen communities to excessive N, these values should aid development of policies to protect Mediterranean woodlands from the initial effects of excessive N.

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“…The application of the LDV method has been successfully tested in some European countries (e.g. Larsen et al 2004;Pinho et al 2004;Giordani 2006), but so far it has not been tested in Central Europe with slightly different landscape types and more oceanic condition from cited studies. For this reason, the Bohemian Karst region, a typical, rather polluted landscape in Central Bohemia, was chosen as a test site and a modified Hawksworth & Rose (1970) method was also applied to provide comparative results.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the European method for mapping lichen diversity (LDV) as an indicator of environmental stress in the Czech Republic

Svoboda

2007

Biologia

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The European method for mapping lichen diversity (LDV) as an indicator of environmental stress/quality in the Czech Republic was evaluated to determine its applicability in this country. A modified Hawksworth & Rose qualitative scale for determining air pollution levels was used for comparative purposes. The study was undertaken in a partially forested and reasonably polluted region of the Bohemian Karst in central Bohemia during 2003. Measurements obtained by the LDV method yielded values in the range 18-65; measurements obtained by the modified Hawksworth & Rose method indicated zones 4-7, with a high correlation with the LDV results. The LDV method proved to be applicable in the region, but its implementation may be limited by the lack of suitable trees and specific landscape ecology.

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Mapping Lichen Diversity as a First Step for Air Quality Assessment

Cited by 59 publications

References 23 publications

Evaluation of lichen species resistance to atmospheric metal pollution by coupling diversity and bioaccumulation approaches: A new bioindication scale for French forested areas

Evaluation of lichen species resistance to atmospheric metal pollution by coupling diversity and bioaccumulation approaches: A new bioindication scale for French forested areas

Critical loads of nitrogen deposition and critical levels of atmospheric ammonia for semi-natural Mediterranean evergreen woodlands

Evaluation of the European method for mapping lichen diversity (LDV) as an indicator of environmental stress in the Czech Republic

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