scholarly journals Diversity and distribution of microlichens in the state of Arunachal Pradesh, Eastern Himalaya, India

Check List ◽  
2015 ◽  
Vol 11 (6) ◽  
pp. 1807 ◽  
Author(s):  
Pushpi Singh ◽  
Krishna Pal Singh ◽  
Ajay Ballabh Bhatt

The paper reports the occurrence of 404 species of microlichens belonging to 105 genera and 39 families known so far, from the state of Arunachal Pradesh, a part of the Himalaya biodiversity hotspot. Twelve species, namely Arthopyrenia saxicola, Arthothelium subbessale, Diorygma macgregorii, D. pachygraphum, Graphis nuda, G. oligospora, G. paraserpens, G. renschiana, Herpothallon japonicum, Megalospora atrorubricans, Porina tijucana and Rhabdodiscus crassus, are new distributional records for India. Astrothelium meghalayense (Makhija & Patw.) Pushpi Singh & Kr. P. Singh and Astrothelium subnitidiusculum (Makhija & Patw.) Pushpi Singh & Kr. P. Singh are proposed as new combinations and 66 species marked by an asterisk (*) are new distributional records for the state.

2018 ◽  
Vol 10 (11) ◽  
pp. 12552-12560
Author(s):  
Bikramjit Sinha

This paper gives a brief review of the studies on zooplankton fauna of Arunachal Pradesh, the major shareholder of the eastern Himalaya biodiversity hotspot.  Altogether, 66 species of zooplankton (45 Rotifera, 20 Cladocera, & one Copepoda) have been recorded along with their distribution in the state, wherever available.  It is apparent that there is a lack of serious taxonomic studies on all three major groups of zooplankton from this Himalayan state.  The urgency and importance of documenting the zooplankton fauna of this biogeographically unique and biodiversity-rich state is highlighted in view of the fragility of the ecosystem as well as the effect of climate change. 


Zootaxa ◽  
2021 ◽  
Vol 5047 (5) ◽  
pp. 575-582
Author(s):  
T. KUBENDRAN ◽  
M. VASANTH ◽  
K. A. SUBRAMANIAN ◽  
FATIMA JABEEN ◽  
K. G. SIVARAMAKRISHNAN ◽  
...  

A new species of Platybaetis viz., P. selvai sp. nov. is described herein based on larval collections from Tangon stream in the state of Arunachal Pradesh in Eastern region of Indian Himalaya. It can be differentiated by the following combination of characters: (i) posterior margin of abdominal segments I–X with rounded ‘U’ shaped spines; (ii) anterolateral margin of gills I–VII with minute setae; (iii) claw with 7–8 denticles; (iv) paracercus composed of 10–11 segments; (v) hindwing pads reduced, small. Brief ecological notes are appended.  


Phytotaxa ◽  
2018 ◽  
Vol 374 (3) ◽  
pp. 273
Author(s):  
AARON J. FLODEN

Polygonatum Miller (1754: without pagination) (Asparagaceae, Nolinoideae) is a relatively large genus with great diversity of plant form, habit, and ecology. Most of the diversity is found in the Hengduan of southwestern China and the eastern Himalaya (Jeffrey 1980, Chen & Tamura 2000). Field observations at several localities in Arunachal Pradesh, India and specimen examinations of an anomalous opposite leaved species from the eastern Himalaya (incl. southeastern Tibet) could not be placed in any currently described species (Baker 1875, Hooker 1894, Tang 1978, Jeffrey 1980, Wu 1983, Noltie 1994, Chen & Tamura 2000, Floden 2015). Comparisons to the type specimens of all opposite-leaved species, examination of species in the field, examination of over 6,000 specimens of Polygonatum from multiple herbaria through loans or visits (CAS, F, H, MI, MO, NY, and PE, acronyms follow Thiers 2018) and digital images (BM, E, HITBC, IBSC, K, KUN, L, LBG, P, and SZ) confirms the novelty of this species. In addition, molecular phylogenetic analysis (A. Floden, in preparation) of 250+ samples of Polygonatum including two nuclear genes and chloroplast data have confirmed the molecular distinctiveness of this new species and its placement in the opposite-leaved group of species found in the Himalaya.


2021 ◽  
Vol 13 (7) ◽  
pp. 18800-18808
Author(s):  
P. Nanda ◽  
Lakpa Tamang

A new species of nemachilid loach Aborichthys barapensis, is described based on two adult specimens (91 and 97 mm SL) from the Barap Stream (a tributary of the Brahmaputra River basin) in the southeastern most part of the state of Arunachal Pradesh bordering Myanmar. The new species is distinguished from its congeners in having a narrow black basicaudal bar without a black ocellus on the upper end (vs. present); and in having a very low dorsal and ventral adipose crests (vs. prominent; absent in A. waikhomi). The new species is further distinguished from its congeners by the following combination of characters: body with 24–26 oblique bars along the flank; interspace narrower than bars on body; moderately rounded caudal fin with five distinct black to brown cross bars; vent closer to the caudal-fin base (44.1–45.1 % standard length) than to snout tip.


2017 ◽  
Vol 9 (4) ◽  
pp. 10047 ◽  
Author(s):  
Arun P. Singh

A three year study (from December 2011 to December 2014 and in June 2015) on butterflies covering four major forest sub-types as classified by H.G. Champion & S.K. Seth in 1968 in ‘Forest Types of India’, which occupy 60% of the forest area lying below 2,500m across Arunachal Pradesh State in the eastern Himalaya of India, revealed 415 taxa belonging to six families (Hesperiidae: 74 species of 42 genera; Papilionidae: 37 species of 10 genera; Pieridae: 36 species of 15 genera; Lycaenidae: 85 species of 49 genera; Riodinidae: 7 species of 3 genera & Nymphalidae: 176 species of 71 genera, respectively).  These included many endemic and rare species typical of these forest sub-types, i.e., (i) 2B/1S1 Sub-Himalayan Light Alluvial Semi-Evergreen Forest (32 species), (ii) 2B/ C1(a) Assam Alluvial Plains Semi-Evergreen Forests (5 species), (iii) 2B/2S2 Eastern Alluvial Secondary Semi-Evergreen Forests- (15 species) and (iv) 3/1S2 (b) Terminalia-Duabanga (3 species), respectively.  The relative number of species and individuals sampled were the highest at altitudes below 500m, and gradually declined as the altitude increased to 2,000m, and above 2,500m species richness declined sharply.  The number of species and their relative abundance were the highest during July–August (Monsoon-first peak) and then again in November-December (Autumn-second peak), while the numbers were lowest during winter.  These findings suggest that these four forest types are important both for the purpose of ecotourism as well as conservation of endemic and rare taxa found in the eastern Himalaya and northeastern India at altitudes below 2,000m.  A complete list of all the taxa sampled is given along with relative abundance status during sampling, Indian Wildlife (Protection) Act, 1972 status, and distribution in different forest types in the state.  Ten potential butterfly ecotourism zones are suggested for the state.  Planning land-use for biodiversity conservation based on butterfly-forest type associations, by taking forest sub-types as units of conservation, is suggested as an option for the eastern Himalaya.


Author(s):  
K. P. Singh ◽  
Pushpi Singh ◽  
G.P. Sinha

Eastern Himalaya, a part of the Himalaya biodiversity hotspot region has been assessed for its lichen diversity, based on the own collections, identifications, field observations and published literature. Out of ca 2540 species so far, known from India, 1047 species,1 sub species and 4 varieties distributed in 592 crustose, 321 foliose, 125 fruticose and 9 squamulose growth forms under 212 genera and 63 families, occurring as corticolous, saxicolous, terricolous, foliicolous, and muscicolous constitute c. 41.22 % of the total lichen diversity of the country. The lichen vegetation is recognized into four major types and discussed under (i) tropical lichen vegetation (ii) sub tropical lichen vegetation (iii) temperate lichen vegetation and (iv) subalpine and alpine lichen vegetation. A comparative statistics of diversity of species under dominant families and genera at India and Eastern Himalaya level is given. The region is also active centre of speciation and represented by 107 endemic species including many point endemics. It is pointed out that this rich diversity of lichens is under threat due to various biotic activities. Therefore, conservation measures concerning rich lichen diversity in brief are also discussed. It is also suggested that unexplored high altitude areas are required to be explored thoroughly for getting complete knowledge of the lichen diversity of the region and finally its utilization for the welfare of human beings.


2021 ◽  
Vol 43 (3) ◽  
pp. 285-292
Author(s):  
Ajay Kumar ◽  
◽  
Krishna Pal Singh ◽  

The genus Usnea Dill.ex Adans. is worked out based on the new collections and represented by 29 species in the state of Arunachal Pradesh, a biodiversity hotspot in north-east India. Six species viz. Usnea angulata Ach., U. compressa Taylor, U. himalayana Bab. U. montisfuji Motyka, U. perplexans Stirt., U. picta (J. Steiner) Motyka are new additions to the state lichen biota. Two species namely U. cineraria Motyka and U. thomsonii Stirt. are endemic to the Himalayan region. The genus is a potent source of phytomedicine and has multifarious ethnobotanical, phytochemical and pharmacological significance. An identification key to all the species is provided to facilitate their identification while new additions to the state are dealt briefly along with their photographs and a table showing the distribution of species within the state. Indian species of Usnea need thorough phytochemical screening to record their unique uses for the human benefits.


2019 ◽  
Vol 11 (10) ◽  
pp. 14363-14367
Author(s):  
Bhavendu Joshi ◽  
Biang La Nam Syiem ◽  
Rokohebi Kuotsu ◽  
Arjun Menon ◽  
Jayanta Gogoi ◽  
...  

Northeastern India, situated within the Indo-Burma and eastern Himalaya biodiversity hotspot complex, is known for its high diversity of wild felid species.  For most of these species, however, data on distribution and population trends are limited.  Here, we present photographic records of the Marbled Cat Pardofelis marmorata and Asiatic Golden Cat Catopuma temminckii from outside protected areas in the state of Nagaland.  These records are from community forests around the Dzükou Valley in Nagaland and are some of the few records of the species from the state.  The confirmed presence of the two species highlights the pivotal role of community-managed forests in the conservation of endangered species in the region. 


Author(s):  
Tamalika Chakraborty ◽  
Somidh Saha ◽  
Narendra S. Bisht

The Himalaya is well known for high diversity and ethnobotanical uses of medicinal plants. However, not all areas of the Himalayas are well studied. In particular, studies on ethnobotanical uses of plants from the Eastern Himalayas are rare and lacking for many tribes. Past studies primarily focused on listing plants name and their traditional medicinal uses. However, studies on traditional ethnopharmacological practices on medicine preparation had not yet been reported in published literature from the Eastern Himalaya. In this study, we are reporting the first time ethnopharmacological used 24 medicines, their procedures of preparation and listed 53 plant species used for those medicines for Monpa tribe. Such documentations had not yet been done for other tribes in India. Our research demonstrates the urgent need to documents traditional medicine preparation procedures from the local healers before rapid cultural modernization forgets them in transforming country like India. This study should motivate national and international researchers to do more works on ethnopharmacology and bioprospecting.


Sign in / Sign up

Export Citation Format

Share Document