Influence of macro-scale environmental variables on diversity and distribution pattern of lichens in Badrinath valley, Western Himalaya

Gupta, Saurabh; Khare, Roshni; Rai, Himanshu; Dk, Upreti; Rk, Gupta; Sharma, Preetam K.; Srivastava, K. N.; Bhattacharya, Pinaki

doi:10.5943/mycosphere/5/1/12

Cited by 4 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…distribution, diversity and abundance of the lichens (Hauck, 2011). Therefore, lichens are globally recognized and utilized as bioindicators of a variety of environmental conditions (Garty, 2001;Gupta et al, 2014;De Silva & Senanayake, 2015). Besides, lichens are of high economic value and are used as food, medicines, natural remedies, perfumes, dyes, etc.…”

Section: Distribution Pattern Of Corticolous Lichens In Different Are...mentioning

confidence: 99%

Distribution pattern of corticolous lichens in different areas of Kathmandu valley, Nepal

Karmacharya

Upreti²,

Chettri

2022

Banko

View full text Add to dashboard Cite

This study attempts to document the lichen species and their distribution in different areas of Kathmandu valley, Nepal. Twenty sampling sites with different degrees of air pollution categorized as disturbed (industrial, heavy traffic and residential areas) and undisturbed areas (clean area) were selected for the study. Sampling was done using the quadrat method. To enumerate the total number of lichen species found in Kathmandu valley, lichen specimens were collected from inside as well as outside the quadrats. A total of 97 species of corticolous lichens belonging to 21 families and 44 genera were recorded from the study sites. Parmeliaceae was the largest family followed by Graphidaceae. The importance value analysis showed that Candelaria concolor (115.2), Dirinaria aegialita, Lepraria sp., Phaeophyscia hispidula var. hispidula and Physcia sorediosa (106.02) are the most common and dominant lichen species in Kathmandu valley. Among the most common and dominant lichen species, Candelaria concolor, Dirinaria aegialita, Phaeophyscia hispidula var. hispidula and Physcia sorediosa were found concentrated in heavy traffic areas whereas Lepraria sp. in the industrial areas. A higher number of lichen species (70%) was recorded in undisturbed areas than in disturbed areas (50%). These study confirm that the distribution of lichen flora is strongly influenced by degrees of pollution. This in turn suggests that lichens can be used as bio indicators of air quality in the Kathmandu valley.

show abstract

Section: Distribution Pattern Of Corticolous Lichens In Different Are...mentioning

confidence: 99%

Distribution pattern of corticolous lichens in different areas of Kathmandu valley, Nepal

Karmacharya

Upreti²,

Chettri

2022

Banko

View full text Add to dashboard Cite

show abstract

“…It is situated between N 30°44'1.43 to N 30°46'33.74 and E 79°29'32.8 to E 79°29'37.4 with an elevation ranged from 2950 to 3670m on the bank of Alaknanda River (Gupta et al, 2014). The area comprises of typical alpine habitat characterized by alpine grasslands, devoid of big tress with small shrubs of Junipers, Berberis and other herbs scattered onto the open grasslands.…”

Section: Study Areamentioning

confidence: 99%

“…The geographical co-ordinates of sampling sites were also recorded. The lichens samples were examined morphologically, taxonomically, anatomically and chemically for their identification with the help of previous works (Awasthi, 1988(Awasthi, , 1991(Awasthi, , 2000(Awasthi, , 2007Gupta et al, 2014;Gupta et al, 2016). The morphological features were studied with Leica EZ4 bionocular (40X) and anatomical structures were studied by Nikon Eclipse E400 compound Microscope.…”

Section: Lichen Sampling and Identificationmentioning

confidence: 99%

Lichen as Bioindicator for Monitoring Environmental Status in Western Himalaya, India

et al. 2016

View full text Add to dashboard Cite

The use of bioindicator communities (lichen) to assess the environmental status of an area is a well-proved strategy to monitor any habitat without any logistic and instrumental facilities. In the present study, 13 bioindicator communities of lichen have been used to assess the environmental status of holy pilgrimage (Badrinath), western Himalaya, India. Three sites (i.e. Badrinath, Mana & pilgrimage route from Bhimpul to Vasudhara) have been comparatively assessed. The results of the study reveals that Badrinath site is less polluted and experiences low degree of anthropogenic disturbances compared to Mana, and pilgrimage route (Bhimpul to Vasudhara). Human settlements, construction of civil works, vehicular emission, and trampling and trekking by tourists are the major threats on these habitats, which ultimately decrease the quality of vegetation and adjacent environment. Controlled vehicular use, promotion of modern way of cooking and managed trekking in these pilgrimage routes could be helpful to combat the decreasing vegetation and environmental quality therein.

show abstract

“…Additionally, environmental variables, such as the relative humidity and precipitation, on which lichen species diversity and the diversity of growth forms depend, are also related to the absolute altitude [ 6 , 7 , 8 ]. It is assumed that, with increasing altitude, the ratio of different growth forms of these organisms is related to an increase in the proportion of crustose forms [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Orographic Factors on the Distribution of Lichens in the Franz Josef Land Archipelago

Kholod,

Konoreva,

Chesnokov

2024

Plants

View full text Add to dashboard Cite

During a geobotanical study of the Franz Josef Land archipelago, 111 lichen species were recorded on 130 sample plots. The significance of orographic factors in the distribution of lichens was assessed using principal component analysis (PCA) and multiple regression analysis. It was found that the absolute altitude and distance from the glacier are of the greatest importance for crustose lichens, while for fruticose lichens, the most critical factors were the slope exposure and steepness. Along the altitudinal gradient, the number of species decreased (from 88 to 25). The highest number of species (90) was recorded at distances of 0.1 to 1.0 km from the glacier edge, which is explained by the unstable species composition of areas recently released from under the glacier. The number of species in all groups generally decreased (from 81 to 52) with increasing slope steepness. With an increasing heat supply of slopes (on a gradient from northern to southern), the number of species steadily increased in all groups (from 39 to 75). The low sum of the explained variance values for the first two PCA components (21%) characterizes the specificity of the natural environment of polar deserts, where there is no leading environmental factor.

show abstract

Influence of macro-scale environmental variables on diversity and distribution pattern of lichens in Badrinath valley, Western Himalaya

Cited by 4 publications

References 30 publications

Distribution pattern of corticolous lichens in different areas of Kathmandu valley, Nepal

Distribution pattern of corticolous lichens in different areas of Kathmandu valley, Nepal

Lichen as Bioindicator for Monitoring Environmental Status in Western Himalaya, India

Influence of Orographic Factors on the Distribution of Lichens in the Franz Josef Land Archipelago

Contact Info

Product

Resources

About