Assessment of Lichen Sensitivity to Climate Change

Insarov, Gregory; Инсарова, И.Д.

doi:10.1080/07929978.1996.10676654

Cited by 15 publications

(4 citation statements)

References 32 publications

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“…Lichens are another group of organisms for which the trait-based response-effect framework may facilitate an understanding of the impacts of winter climate change. Cold biome lichens are known to be extremely cold tolerant compared to most vascular plants, partly due to their poikilohydric physiology (response trait), and they also show great interspecific variation in cold tolerance (SRF) (Kappen 1993(Kappen , 2000Insarova and Insarova 1996). Moreover, several species are known to be able to photosynthesize substantially at sub-zero temperatures when still covered by snow by using snow or ice as a water source, and this ability (SRF) also varies among lichen species (Kappen 1993;Kappen et al 1995).…”

Section: Linking Response and Effect Traits: Real Life Examplesmentioning

confidence: 99%

Winter climate change, plant traits and nutrient and carbon cycling in cold biomes

Cornelissen

Makoto

2013

Ecological Research

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It is essential that scientists be able to predict how strong climate warming, including profound changes to winter climate, will affect the ecosystem services of alpine, arctic and boreal areas, and how these services are driven by vegetation-soil feedbacks. One fruitful avenue for studying such changing feedbacks is through plant functional traits, as an understanding of these traits may help us to understand and synthesise (1) responses of vegetation (through 'response traits' and 'specific response functions' of each species) to winter climate and (2) the effects of changing vegetation composition (through 'effect traits' and 'specific effect functions' of each species) on soil functions. It is the relative correspondence of variation in response and effect traits that will provide useful data on the impacts of winter climate change on carbon and nutrient cycling processes. Here we discuss several examples of how the trait-based, response-effect framework can help scientists to better understand the effects of winter warming on key ecosystem functions in cold biomes. These examples support the view that measuring species for their response and effect traits, and how these traits are linked across species through correspondence of variation in specific response and effects functions, may be a useful approach for teasing out the contribution of changing vegetation composition to winter warming effects on ecosystem functions. This approach will be particularly useful when linked with ecosystem-level measurements of vegetation and process responses to winter warming along natural gradients, over medium time scales in given sites or in response to experimental climate manipulations.

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Section: Linking Response and Effect Traits: Real Life Examplesmentioning

confidence: 99%

Winter climate change, plant traits and nutrient and carbon cycling in cold biomes

Cornelissen

Makoto

2013

Ecological Research

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“…These parameters are very important in arid and semi-arid environments, where water is the main limiting factor for land use performance and biomass production of ecosystems (Kosmas et al 1999) and drought is the major factor shaping vegetation and controlling plant functions in water-limited ecosystems (Rambal et al 2003). All the above factors influence sensitive organisms such as lichens, either directly or indirectly through modifications in their habitats, so that ecophysiology, growth, biomass, community structure and distribution can all change in space and time (Insarov and Insarova 1996;Insarov and Schroeter 2002). Lichens, as symbiotic organisms able to regain active metabolism any time the amount of hydration is high enough (Lange 2003), base their survival on the absorption of water and nutrients from the air, differing in that from higher plants, which depend mainly on soil for their nutrition.…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic performance of lichen transplants as early indicator of climatic stress along an altitudinal gradient in the arid Mediterranean area

2011

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A climatic change was simulated transplanting samples of the lichens Evernia prunastri (L.) Ach. and Pseudevernia furfuracea (L.) Zopf v. furfuracea along a 1,400 m altitudinal gradient in the northern side of the island of Crete (Greece). The working hypothesis was that the photosynthetic performance (i.e. pigment content, chlorophyll degradation and photosynthetic efficiency) of transplanted lichens varies along the altitudinal gradient. The overall effect observed was a general depression of the photosynthetic performance along the gradient. Concentrations of chlorophyll a, chlorophyll b and carotenoids decreased with decreasing elevation and along with the hottest and driest months of the year, with chlorophyll b being the most sensitive parameter to dry conditions. Chlorophyll degradation decreased with increasing elevation. The exposure period was the main factor affecting photosynthetic efficiency, with lower values during summer months. We argued that the water content of lichen thalli is the most important factor determining differences in photosynthesis under the experimental conditions. This allowed to suggest that the lichen photosynthetic performance deserves further investigation as early biological indicator of atmospheric stress induced by dry conditions and, to a greater extent, for the assessment of the desertification risk in the arid Mediterranean environment.

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“…A relic character of habitats of recent occurrences does not suggest recent spreading as response to global warming, a hypothesis introduced recently by some authors (Insarov et al 1999;van Herk et al 2002;. Occasional saxicolous occurrences of epiphytic species, such as Heterodermia speciosa, Leptogium cyanescens, Lobaria amplissima, L. scrobiculata, Nephromopsis laureri and Pannaria conoplea, were mentioned by Suza (1934b) more than 70 years ago.…”

Section: Parmotrema Perlatummentioning

confidence: 97%

Changes in distribution and substrate preferences of selected threatened lichens in the Czech Republic

Vondrák

Liška

2010

Biologia

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Abstract:The distribution and ecology of four threatened lichens in the Czech Republic, Evernia mesomorpha, Hyperphyscia adglutinata, Hypotrachyna revoluta and Parmotrema perlatum, have been studied. All species are mainly epiphytic, but recent records from the Czech Republic are largely from siliceous rocks in river/brook valleys. Changes in distribution and substrate preferences are documented and discussed.

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Assessment of Lichen Sensitivity to Climate Change

Cited by 15 publications

References 32 publications

Winter climate change, plant traits and nutrient and carbon cycling in cold biomes

Winter climate change, plant traits and nutrient and carbon cycling in cold biomes

Photosynthetic performance of lichen transplants as early indicator of climatic stress along an altitudinal gradient in the arid Mediterranean area

Changes in distribution and substrate preferences of selected threatened lichens in the Czech Republic

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