Effects of Grazing on Epiphytic Lichen Vegetation in a Mediterranean Mixed Evergreen Sclerophyllous and Deciduous Shrubland (Northern Greece)

Pirintsos, Stergios; Dalaka, Anastasia; Dominicis, V. De

doi:10.1080/07929978.1998.10676740

Cited by 12 publications

(6 citation statements)

References 17 publications

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“…Detecting the effect of climate change in arid areas is complicated by several environmental factors, including background air pollution and eutrophication from animal grazing (Pirintsos and Loppi 2003;Pirintsos et al 1998). The experimental design adopted in the present study aimed at detecting responses induced by a regional climatic gradient and at reducing the noise of other disturbances that make difficult attributing an observed change to a specific cause (Insarov and Schroeter 2002).…”

Section: Detecting Responses To a Climatic Stress In Arid Environmentsmentioning

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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Section: Detecting Responses To a Climatic Stress In Arid Environmentsmentioning

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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“…3). According to Loppi & De Dominicis (1996), Loppi et al (1998), Pirintsos et al (1998) the xeric conditions and rural-agricultural environment indirectly support dust impregnation of the bark and the drier microclimate of trees in the Mediterranean area, enhancing xero-nitrophytic lichen species diffusion. In our survey area, where for the above mentioned reasons fruticose and meso-acidophytic foliose sensitive species (Barkman, 1958) were lacking, the sampled flora was mainly composed by crustose growth forms (62%), while the remaining part was dominated by narrow-lobe foliose species.…”

Section: Evaluation Of Lichen Diversity Valuesmentioning

confidence: 99%

Assessment of environmental quality by the diversity of epiphytic lichens in a semi-arid mediterranean area (Val Basento, South Italy)

Paoli

Guttová

2006

Biologia

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Abstract:The results of a bioindication study based on the diversity of epiphytic lichens in a semi-arid area of South Italy are presented. The area features the presence of an industrial zone located in a rural context. The survey was performed in 20 sampling sites. The lichen diversity values (LDV) were determined by the frequencies of all lichen species within a sampling grid placed on tree trunks. Lichens demonstrated a condition of environmental alteration extending to the industrial zone, and tending towards a recovery in the rural surroundings. The survey also showed evidence of eutrophication all over the study area.

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“…(1993Pirintsos & al. ( , 1995Pirintsos & al. ( , 1998 and Riga-Karandinos (2000) reported on epiphytic lichens from a number of trees and shrubs.…”

Section: Introductionmentioning

confidence: 99%

Notes on epilithic and epigeic lichens from granite and gneiss outcrops in mountains of Makedonia, Greece, with emphasis on northern species

Christensen

2014

Willdenowia

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Effects of Grazing on Epiphytic Lichen Vegetation in a Mediterranean Mixed Evergreen Sclerophyllous and Deciduous Shrubland (Northern Greece)

Cited by 12 publications

References 17 publications

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

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

Assessment of environmental quality by the diversity of epiphytic lichens in a semi-arid mediterranean area (Val Basento, South Italy)

Notes on epilithic and epigeic lichens from granite and gneiss outcrops in mountains of Makedonia, Greece, with emphasis on northern species

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