Rediscovery of Magnolia rabaniana (Magnoliaceae): A threatened tree species of Meghalaya, northeast India

Mir, Aabid Hussain; Upadhaya, Krishna; Odyuo, Nripemo; Tiwari, Brajesh Kumar

doi:10.1016/j.japb.2016.10.004

Cited by 5 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the highly specific ecological niches of these species may also hinder their dispersal and range expansion as has been observed in some other threatened species including Adinandra griffithii ( Adhikari et al 2018 ) and Magnolia rabaniana ( Mir et al 2017 ). Since these species are confined to alpine and sub-alpine habitats which experience severe climates like high humidity, subzero temperatures and acidic soils which prevents them to acclimatize outside their natural setting ( Qu et al 2018 ).…”

Section: Resultsmentioning

confidence: 99%

Ecology, distribution mapping and conservation implications of four critically endangered endemic plants of Kashmir Himalaya

Mir

Tyub

Kamili

2020

Saudi Journal of Biological Sciences

View full text Add to dashboard Cite

During the last few decades, human-driven activities have led to indiscriminate habitat destruction and exploitation of many plant species in Kashmir Himalaya. As a result, many species have become threatened and are struggling for survival. Of particular concern are the endemic and critically endangered species which have the highest risk of the extinction, hence warranting immediate conservation actions. Therefore the current study was carried out to understand the distribution, ecology and conservation implications of the four critically endangered endemic plants of Kashmir Himalaya. Habitat distribution modelling showed that the suitable potential areas for the species occurred from subalpine to alpine meadowlands with an elevational range of 1500–4600 m asl. The output of the MaxEnt model and field surveys have revealed that their highest potential distribution is in Panchari, Khrew, Ramnagar, Pahalgam, Gurez, Sonamarg, Gulmarg and Kishtwar forest ranges. Based on the field explorations and herbarium records, Saussurea costus (Falc.) Lipsch have 27 distribution areas, Gentiana kurroo Royle 18, Lilium polyphyllum D. Don 12 and Aconitum chasmanthum Stapf have 15. Precipitation of the driest month and annual mean temperature played an important role in the distribution of the studied species. The species started their lifecycle with the onset of the spring season, flowered in summer, fruit in autumn and senesce in the winter season. Under natural conditions, the number of days required for germination ranged from 180 to 210 where cold stratification played a pivotal role. Since last few decades, the populations of these species have been shrinking in their natural habitats due to over-exploitation for medicinal purposes and habitat destruction through amplified humanoid interferences like the expansion of agricultural land, road building, grazing and urbanization. Thus there is an urgent need to come up with positive strategies to save whatever is left and plan long term rescue measures not only to protect these species from extinction but also to reintroduce them along with framing the plans to supply sustained raw materials for medicine.

show abstract

Section: Resultsmentioning

confidence: 99%

Ecology, distribution mapping and conservation implications of four critically endangered endemic plants of Kashmir Himalaya

Mir

Tyub

Kamili

2020

Saudi Journal of Biological Sciences

View full text Add to dashboard Cite

show abstract

“…The low conservation value of the community forests located in Upper Shillong and Smit region could be attributed to anthropogenic disturbances. Levels of human pressures have been considered as an important predictor of RET species abundance and occurrence in a particular area ( Sodhi et al., 2010 ; Mir et al., 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Assessing the effectiveness of community managed forests for plant diversity conservation in Meghalaya, Northeast India

2022

Self Cite

View full text Add to dashboard Cite

“…The disturbance was assessed, assigning a score from 0 to 10 to each variable, depending on the intensity of the disturbance: a score of 0 was considered as insignificant, 1 as low, 5 as intermediate, and 10 as high. A disturbance index was calculated following Mir et al [94].…”

Section: Environmental Samplingmentioning

confidence: 99%

Small-Scale Environmental Drivers of Plant Community Structure and Diversity in Neotropical Montane Cloud Forests Harboring Threatened Magnolia dealbata in Southern Mexico

et al. 2020

View full text Add to dashboard Cite

Gradient analysis was used to determine factors driving small-scale variation of cloud forest communities harboring Magnolia dealbata, a threatened species and bioculturally relevant tree for the Chinantecan, Mazatecan, Nahuan, and Zapotecan ethnicities in southern Mexico. Particularly, we aimed to: (a) determine factors explaining major community gradients at different heterogeneity scales along a small-scale elevational gradient, (b) test the Decreasing and the Continuum hypotheses along elevation, and (c) classify vegetation to assist in identifying conservation priorities. We used a stratified random sampling scheme for 21 woody stands along a small-scale (352 m) elevational transect. Four main data matrices were used (presence-absence, density, basal area, and guild data). Through Non-metric Multidimensional Scaling (NMS), Principal Coordinates Analysis (PCoA), and distance-based Redundancy Analysis (db-RDA), we found that major community variation was explained by soil pH, displaying an outstanding vegetation discontinuity, separating the species-rich relic Oreomunnea-Ticodendron-stands from stands with higher importance values for M. dealbata. The high species richness observed was explained by a combination of the windward effect of dry-seasonal maximum cloud condensation gain and habitat differentiation-specialization, a phenomenon that may also explain the mid-peak hypothesis and ensure the survival of relic species. Sampling-truncation and conservation status also played a role in this. Our results do not support the Decreasing and Continuum hypotheses along elevation.

show abstract

Rediscovery of Magnolia rabaniana (Magnoliaceae): A threatened tree species of Meghalaya, northeast India

Cited by 5 publications

References 11 publications

Ecology, distribution mapping and conservation implications of four critically endangered endemic plants of Kashmir Himalaya

Ecology, distribution mapping and conservation implications of four critically endangered endemic plants of Kashmir Himalaya

Assessing the effectiveness of community managed forests for plant diversity conservation in Meghalaya, Northeast India

Small-Scale Environmental Drivers of Plant Community Structure and Diversity in Neotropical Montane Cloud Forests Harboring Threatened Magnolia dealbata in Southern Mexico

Contact Info

Product

Resources

About