Population Structure and Regeneration Status of Cyathea gigantea (Wallich ex Hook. f.) Holttum, a Tree Fern in Arunachal Pradesh, India

Abstract

Cyathea gigantea is a tree fern distributed throughout humid tropical regions of northeast India and other parts of the country. However, wild populations of this species are largely affected by various natural and anthropogenic activities.Therefore, an attempt was made to study the population structure and regeneration status of C. gigantea in and around Population structure of the total population exhibited inverted pyramid shaped distribution. Population structure consisting of youngs, immatures, matures showed that around 60% patches lack of regenerating individuals which depict very poor natural regeneration of the species. Effective conservation strategies are therefore to be formulated to save C. gigantea from the threat of extinction in near future.

Population Structure, Regeneration Status and Conservation Measures of Threatened Cyathea SPP

“…Kachroo 1953, Bir et al 1989, Verma et al 2014. Only a few studies on ecological and conservation aspects of pteridophytes of north-east India were reported (Bhattacharya et al 2003, Paul et al 2015, while the Seijosa forest in the East Kameng district of Arunachal Pradesh is still unexplored. Therefore, regeneration and conservation status of the threatened Cyathea spp.…”

Association between spatial genetic variation and potential distribution in tree fern Alsophila gigantea (Cyatheaceae) in Hainan Island, China

“…Ferns are key component of Hainan Island flora and play important roles in ecosystem (Dong, 2009). Especially, tree ferns represent a significant characteristic for rain forest of tropical and subtropical climate (Paul et al, 2015). However, their survival crisis is attributed to the lack of effective gene flow between the fragmented small populations (Wang et al, 2003).…”