Threat categorisation and conservation prioritisation of floristic diversity in the Indian Himalayan region: A state of art approach from Manali Wildlife Sanctuary

Rana, Man S.; Samant, S. S.

doi:10.1016/j.jnc.2009.08.004

Cited by 52 publications

(50 citation statements)

References 23 publications

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“…Although China has in place a conservation strategy and a range of in situ and ex situ initiatives (Lopez-Pujol et al 2011, Ma et al 2013, more ex situ collections are needed in general (Raven 2011, and more field work and ex situ collections are needed for Rho dodendron in particular (Ma et al 2013(Ma et al , 2014. Other countries also have in situ conservation initiatives for 'all flora', e.g., Nepal (IUCN Nepal 2010) and India (Rana & Samant 2010), with initiatives that are particular to Rhododendron (e.g., Singh et al 2009). Individual countries will wish to determine their own conservation priorities and the place of Rhododendron among those priorities is as yet unknown for many countries.…”

Section: Conservation Actionmentioning

confidence: 99%

Geographic analysis of Red List Rhododendron (Ericaceae) taxa by country of origin identifies priorities for ex situ conservation

MacKay¹,

Gardiner²

2017

blum - j plant tax and plant geog

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A Red List assessment is insufficient to determine priorities for ex situ conservation in large genera such as Rhododendron, where there may be hundreds of taxa in any one Red List category. We have utilised an analysis of the geographic origins of 1 215 taxa of Rhododendron (Ericaceae) as a method to prioritise Red List taxa for ex situ conservation. This analysis includes descriptions of distribution and endemism by country of origin, analysis of the incidence of the 715 Red List taxa by country of origin, and determination of the extent to which taxa from each country of origin are in cultivation. We determined that of 30 countries of origin and a 'Europe' aggregate, 24 origins contain Red List taxa. Of those 24 origins, 17 origins and 'Europe' have greater than 75 % of Red List taxa 'in cultivation', as defined in this study, so that Target 8 of the Global Strategy for Plant Conservation has theoretically been met. However, for some of these origins the number of each taxon held 'in cultivation' is very low and genetic diversity is likely to be poor. The remaining six countries of origin have less than 75 % of Red List Rhododendron taxa recorded 'in cultivation' (Indonesia (28 %), Papua New Guinea (29 %), Malaysia (59 %), China (60 %), Japan (62 %) and Solomon Islands (0 %)). Analysis of a set of Red List factors and 'not in cultivation' factors reveals that Red List taxa from Indonesia, China and Papua New Guinea should take priority for ex situ conservation.

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Section: Conservation Actionmentioning

confidence: 99%

Geographic analysis of Red List Rhododendron (Ericaceae) taxa by country of origin identifies priorities for ex situ conservation

MacKay¹,

Gardiner²

2017

blum - j plant tax and plant geog

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“…The Hissar Range covers approximately 10 000 km 2 and is situated in north-western part of Tajikistan and eastern part of Uzbekistan, between E 39°06'-39°32' and N 66°55'-70°48' (Fig. 2, Fig.…”

Section: Study Areamentioning

confidence: 99%

“…Despite some discrepancies concerning the precise location of the historical populations in relation to the extant ones, we can assess that the species is known from twelve locations, seven of which are probably extinct. D. involucrata also has a very narrow EOO of less than 5000 km 2 and an AOO of less than 650 m 2 . This distributional feature makes it possible to evaluate the threat status of the species and permits the conclusion that the "endangered" is an appropriate category and should be considered as global.…”

Section: Endangerment Status Of Dionysia Involucratamentioning

confidence: 99%

“…To this end, the determination of threat degree or, alternatively, the expectation of survival of taxa to which a special significance is attributed is crucial. The biogeographical and ecological features of rare or endemic taxa have been the subject of preferential attention by conservationists [1,2] because they appear to be more exposed to threats. One way of risk assessment is to assign a given taxon to a particular standardized threat category.…”

Section: Introductionmentioning

confidence: 99%

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Distribution, ecology and conservation status of Dionysia involucrata Zaprjag., an endangered endemic of Hissar Mts (Tajikistan, Middle Asia)

et al. 2014

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Dionysia involucrata Zaprjag. (Primulaceae) is known as critically endangered endemic species of Hissar Mountains in Tajikistan. It is reported from few localities mainly in Varzob River valley and its tributaries. The species inhabits steep or overhanging faces of granite rocks in narrow river gorges. During the research all known populations of D. involucrata were examined in respect of the habitat conditions and species composition of vegetation plots. We analyzed the population extent of the species in its range in Tajikistan and the main threats in order to assess its conservation status. The detrended correspondence analysis was performed on a matrix of 65 relevés and 49 species (vascular plants and mosses), to classify the phytocoenosis with domination of D. involucrata according to their floristic composition in relation to other petrophytic vegetation units. Using our field data regarding present extent of occurrence and area of occupancy we conclude that the threat category of D. involucrata should be reassessed from critically endangered to endangered. The species shows decline tendency in extent of occurrence, area of occupancy as well as in number of locations. The vegetation plots with domination of D. involucrata have relatively high level of separateness due to different species composition. We define the new association -Dionysietum involucratae -representing chasmophytic vegetation of submontane and montane zone in Middle Asia (ca. 1000-1600 m a.s.l.). The plots of Dionysietum involucratae were found mainly on granite rocks, on very steep or overhanging faces, on southwestern or southern exposition. The association is rather poor in species with inconsiderable contribution of mosses. Despite the diagnostic species, Campanula incanescens, Carex koshewnikowii and Scutellaria hissarica were the most abundant and frequent taxa within the researched patches of vegetation.

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“…The unabated trade, ruthless degradation of habitat by grazing 10 coupled with global warming/climate change and infestation of habitat by invasive species has caused shrinking of the species in the wild. The situation is further aggravated by the epicotyls-morphophysiological seed dormancy in L. polyphyllum 11 .…”

mentioning

confidence: 99%

Callus-Mediated Organogenesis in <i>Lilium polyphyllum</i> D. Don ex Royle:A Critically Endangered Astavarga Plant

Panwar¹,

Srivastava²,

Uniyal³

2017

Current Science

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Threat categorisation and conservation prioritisation of floristic diversity in the Indian Himalayan region: A state of art approach from Manali Wildlife Sanctuary

Cited by 52 publications

References 23 publications

Geographic analysis of Red List Rhododendron (Ericaceae) taxa by country of origin identifies priorities for ex situ conservation

Geographic analysis of Red List Rhododendron (Ericaceae) taxa by country of origin identifies priorities for ex situ conservation

Distribution, ecology and conservation status of Dionysia involucrata Zaprjag., an endangered endemic of Hissar Mts (Tajikistan, Middle Asia)

Callus-Mediated Organogenesis in <i>Lilium polyphyllum</i> D. Don ex Royle:A Critically Endangered Astavarga Plant

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