scholarly journals Tree diversity and community characteristics in Talle Wildlife Sanctuary, Arunachal Pradesh, Eastern Himalaya, India

2016 ◽  
Vol 9 (2) ◽  
pp. 160-165 ◽  
Author(s):  
Gyati Yam ◽  
Om Prakash Tripathi
Keyword(s):  
Tree Diversity ◽  
Eastern Himalaya ◽  
Arunachal Pradesh ◽  
Wildlife Sanctuary ◽  
Community Characteristics

A new species of Metallolophia Warren, 1895 (Lepidoptera: Geometridae: Geometrinae), and notes on M. opalina (Warren, 1893), from eastern Himalaya, India

Zootaxa ◽  
2020 ◽  
Vol 4838 (2) ◽  
pp. 289-297
Author(s):  
SANJAY SONDHI ◽  
DIPENDRA NATH BASU ◽  
YASH SONDHI ◽  
KRUSHNAMEGH KUNTE
Keyword(s):  
New Species ◽  
Eastern Himalaya ◽  
Arunachal Pradesh ◽  
Wildlife Sanctuary ◽  
A New Species

A new species, Metallolophia taleensis, sp. nov., is described and illustrated from Tale Wildlife Sanctuary, Lower Subansiri District, Arunachal Pradesh, India, based on male specimens. A second species, Metallolophia opalina (Warren, 1893), is recorded from India after more than a century, extending its range eastwards into Arunachal Pradesh, India. 

scholarly journals Butterflies (Lepidoptera) of the Kameng Protected Area Complex, western Arunachal Pradesh, India

2016 ◽  
Vol 8 (8) ◽  
pp. 9053 ◽  
Author(s):  
Sanjay Sondhi ◽  
Krushnamegh Kunte
Keyword(s):  
Protected Areas ◽  
Protected Area ◽  
Eastern Himalaya ◽  
Butterfly Species ◽  
Historical Records ◽  
Arunachal Pradesh ◽  
Wildlife Sanctuary ◽  
Number Of Species ◽  
Tiger Reserve ◽  
Annotated Checklist

The butterflies of the Kameng Protected Area Complex in western Arunachal Pradesh, India, covering the protected areas of Eaglenest Wildlife Sanctuary, Pakke Tiger Reserve and Sessa Orchid Wildlife Sanctuary were surveyed over a 5-year period (2009–2014).  A total of 421 butterfly species were recorded during the survey, including two species new to India (Gonepteryx amintha thibetana and Bhutanitis ludlowi) and several species rediscoveries and range extensions in the Eastern Himalaya, most notably Arhopala belphoebe, Sovia separata magna, Aulocera saraswati vishnu, Calinaga aborica, Callerebia annada annada, and Callerebria scanda opima.  Here we provide an annotated checklist of butterflies of the Kameng Protected Area Complex, including historical records, distributions, abundance, habitats and other notes on these 421 species. An additional 42 species recorded in older literature or by other authors in recent times are also listed, taking the total number of species recorded in the landscape to 463.  

Using bedrock thermochronometer systems to constrain fold-thrust belt geometry and kinematics, insight from the eastern Himalayas, Arunachal Pradesh, India.

2021 ◽  
Author(s):  
Nadine McQuarrie ◽  
Mary Braza
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Hanging Wall ◽  
Vertical Component ◽  
Eastern Himalaya ◽  
Thrust Belt ◽  
Arunachal Pradesh ◽  
Eastern Himalayas ◽  
Cross Section Geometry ◽  
Geometry And Kinematics

<div> <p>One of the first order questions regarding a cross-section representation through a fold-thrust belt (FTB) is usually “how unique is this geometrical interpretation of the subsurface?”  The proposed geometry influences perceptions of inherited structures, decollement horizons, and both rheological and kinematic behavior.  Balanced cross sections were developed as a tool to produce more accurate and thus more predictive geological cross sections.  While balanced cross sections provide models of subsurface geometry that can reproduce the mapped surface geology, they are non-unique, opening the possibility that different geometries and kinematics may be able to satisfy the same set of observations. The most non-unique aspects of cross sections are: (1) the geometry of structures that is not seen at the surface, and (2) the sequence of thrust faulting.  We posit that integrating sequentially restored cross sections with thermokinematic models that calculate the resulting subsurface thermal field and predicted cooling ages of rocks at the surface provides a valuable means to assess the viability of proposed geometry and kinematics.  Mineral cooling ages in compressional settings are the outcome of surface uplift and the resulting focused erosion.  As such they are most sensitive to the vertical component of the kinematic field imparted by ramps and surface breaking faults in sequential reconstructions of FTB.  Because balanced cross sections require that the lengths and locations of hanging-wall and footwall ramps match, they provide a template of the ways in which the location and magnitude of ramps in the basal décollement have evolved with time.  Arunachal Pradesh in the eastern Himalayas is an ideal place to look at the sensitivity of cooling ages to different cross section geometries and kinematic models. Recent studies from this portion of the Himalayan FTB include both a suite of different cross section geometries and a robust bedrock thermochronology dataset. The multiple published cross-sections differ in the details of geometry, implied amounts of shortening, kinematic history, and thus exhumation pathways. Published cooling ages data show older ages (6-10 Ma AFT, 12-14 Ma ZFT) in the frontal portions of the FTB and significantly younger ages (2-5 Ma AFT, 6-8 Ma ZFT) in the hinterland. These ages are best reproduced with kinematic sequence that involves early forward propagation of the FTB from 14-10 Ma.  The early propagation combined with young hinterland cooling ages require several periods of out-of-sequence faulting. Out-of-sequence faults are concentrated in two windows of time (10-8 Ma and 7-5 Ma) that show systematic northward reactivation of faults.  Quantitative integration of cross section geometry, kinematics and cooling ages require notably more complicated kinematic and exhumation pathways than are typically assumed with a simple in-sequence model of cross section deformation.  While also non-unique, the updated cross section geometry and kinematics highlight components of geometry, deformation and exhumation that must be included in any valid cross section model for this portion of the eastern Himalaya.</p> </div>

scholarly journals Suitability of Maize-legume intercrops with optimum row ratio in mid hills of eastern Himalaya, India

2015 ◽  
Vol 12 (2) ◽  
pp. 52-62 ◽  
Author(s):  
VK Choudhary
Keyword(s):  
Production Efficiency ◽  
Zea Mays L ◽  
Eastern Himalaya ◽  
Arunachal Pradesh ◽  
Phaseolus Vulgaris L ◽  
Land Equivalent Ratio ◽  
Equivalent Ratio ◽  
Planting Geometry ◽  
Legume Crops ◽  
Stover Yield

Maize (Zea mays L.) being a widely space crop were tried with different combinations of legumes cowpea (Vigna unguiculata L. Walp), frenchbean (Phaseolus vulgaris L.) and blackgram (Vigna mungo L.) as intercrops at different planting geometry to find out their suitability during 2009, 2010 and 2011 at eastern Himalayan, Arunachal Pradesh, India. Three experiments were carried out in sequence to identify suitable planting geometry to accommodate intercrops, screening best legume crops and subsequently best performed row ratio of maize and legume crops were intercropped in third experiment with 1:1, 1:2 and 1:5 row proportions. Sole maize gave the maximum grain yield with 4571.1 kg ha-1, whereas, stover yield was highest with maize-cowpea intercrop at 1:2 row ratios (8013.4 kg ha-1) and 57.1 kg ha-1 day-1 production efficiency followed by frenchbean and least with blackgram. Competition indices like land equivalent ratio (LER) was highest with 1:2 row ratio of maize-frenchbean (1.66), land equivalent coefficient (0.67). But, highest area time equivalent ratio (ATER) noticed with 1:2 row ratio of maizeblackgram (1.47). Relative crowding coefficient (K) and competition ratio were noticed higher with 1:2 row ratio of maize-cowpea, whereas, cowpea combinations has better crowding coefficient and blackgram combinations registered better competitiveness. Monetary advantage index (MAI) was 6433.2 with 1:2 row ratio of maize-blackgram followed by maize-cowpea and lowest with maize-frenchbean with the trend of 1:2>1:5>1:1 row ratios. DOI: http://dx.doi.org/10.3329/sja.v12i2.21916 SAARC J. Agri., 12(2): 52-62 (2014)

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
Keyword(s):  
Biodiversity Hotspot ◽  
The State ◽  
Eastern Himalaya ◽  
New Combinations ◽  
Arunachal Pradesh ◽  
The Himalaya

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.

A new genus of Trechini beetles from the Eastern Himalaya (Coleoptera: Carabidae)

Zootaxa ◽  
2019 ◽  
Vol 4544 (4) ◽  
pp. 581
Author(s):  
IGOR A. BELOUSOV ◽  
ILYA I. KABAK ◽  
JOACHIM SCHMIDT
Keyword(s):  
New Genus ◽  
Eastern Himalaya ◽  
Arunachal Pradesh ◽  
Genital Morphology ◽  
Greater Himalaya

Himalotrechus humeratus gen. n., sp. n. is described from the easternmost portion of the Greater Himalaya in the Arunachal Pradesh State of India. The relationships of this new genus within Trechini are discussed based on the relevant characters in external and genital morphology. Himalotrechus gen. n. is likely to be a member of the Epaphiopsis Complex (Deuve et al., 2016). 

Diversity and distribution of lichens in relation to altitude within a protected biodiversity hot spot, north-east India

2008 ◽  
Vol 40 (1) ◽  
pp. 47-62 ◽  
Author(s):  
Athokpam PINOKIYO ◽  
Krishna Pal SINGH ◽  
Jamuna Sharan SINGH
Keyword(s):  
Hot Spot ◽  
Arunachal Pradesh ◽  
Key Factors ◽  
Wildlife Sanctuary ◽  
North East India ◽  
North East ◽  
Lichen Diversity ◽  
Terricolous Lichens ◽  
Almost All ◽  
Unimodal Pattern

Abstract:A study of the diversity and distribution of lichens at 10 sites within the Mehao Wildlife Sanctuary in Arunachal Pradesh, India, revealed 177 species, belonging to 71 genera and 35 families. The Sanctuary exhibited almost all the habit and habitat groups of lichens within its climatically heterogenous and altitudinally (400–2700 m) varied landscape. Among the different habitat groups, obligately corticolous lichens were dominant (133 species), followed by facultatively corticolous lichens (occurring on both rock and bark; 25 species), saxicolous lichens (17 species) and terricolous lichens (2 species). The corticolous habitat group was dominated by crustose species while saxicolous and terricolous groups were made up of mostly fruticose species. A substantial number of species (77) occurred at single sites only, and each of the 10 sites supported a distinct lichen assemblage. Altitude and humidity were the putative key factors controlling the diversity and distribution of lichens within the Sanctuary. The mid altitude range 1400–1600 m had the greatest lichen diversity, which showed a unimodal pattern in relation to altitude.

Three new Solomon’s Seals (Polygonatum: Asparagaceae) from the Eastern Himalaya

Phytotaxa ◽  
2015 ◽  
Vol 236 (3) ◽  
pp. 273 ◽  
Author(s):  
Aaron Jennings Floden
Keyword(s):  
Related Species ◽  
Eastern Himalaya ◽  
Arunachal Pradesh ◽  
Autumn Flowering ◽  
Single Locality

Three new Polygonatum (Asparagaceae) are described and illustrated from the Eastern Himalaya. These species, Polygonatum autumnale, P. angelicum, and P. luteoverrucosum, have opposite leaves and are evergreen. The foremost is the first autumn-flowering species in the genus and is known from a single locality in Arunachal Pradesh, India. Polygonatum angelicum and P. luteoverrucosum are the first species in the genus to be reported with distinctly verrucose perigone surfaces. These two are sympatric in Arunachal Pradesh, India, and Xizang, China, but occur at different elevations. Their relationships to other opposite-leaved species are discussed and a key is provided to these and related species.

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