scholarly journals HABITAT AND PHYTOSOCIOLOGICAL CHARACTERS OF THE ENDANGERED PLANT SPECIES, EXACUM BICOLOR ROXB.

2018 ◽  
Vol 5 (2) ◽  
pp. 56-61
Author(s):  
Jeeshna M.V ◽  
Paulsamy S

Study on the phytosociological characters like distribution, abundance, density etc of a species in its established habitats is a tool to determine the effect of environmental conditions on variations in population characteristics. Based on this concept, four leaf shape variants (ovate, linear- lanceolate, oblanceolate and ovate – elliptic) of the plant species, Exacum bicolor distributed in four different grasslands habitats viz.,Payyanur, Taliparamba, Paithal mala and Thirunelli at Kannur and Wayand districts of Kerala were selected in the present study. The populations of the study species showed distinct expression of ecological attributes across the four leaf shape variants in four habitats studied. The distribution level determined through the annual mean frequency percentage was higher (89.29 %) in the populations of ovate leaf shape variant in Taliparamba, where as it was lower (5.71 %) in the populations of linear – lanceolate leaf shape variant in Payyanur. Similarly, the annual abundance of the population was higher (5.08/m2) for ovate – elliptic leaf shape variant (Taliparmba) and lower (1.43/m2) for linear – lanceolate leaf shape variant (Thirunelli). The annual density obtained by the population was also higher for ovate leaf shape variant present in Taliparmba (4.10/m2) and lower for the population of linear – lanceolate leaf shape variant present in Thirunelli, (0.09/m2). From these ecological studies, it is understood that among the four leaf shape variants, generally ovate leaf shape variant has established well. In addition, the grassland community at Taliparamba is determined to have most suitable microclimate also for this variant than the other habitats studied.

2020 ◽  
Vol 12 (10) ◽  
pp. 16399-16401
Author(s):  
Arif Ahmad ◽  
Amit Kumar ◽  
Gopal Singh Rawat ◽  
G.V. Gopi

In this note, we report the opportunistic observation of Sapria himalayana a rare and endangered plant species in Mehao Wildlife Sanctuary during our camera trapping for mammals. We recorded the plant in two locations inside the sanctuary. We found three flowers near Mehao lake and five flowers near Sally lake. Considering the restricted distribution and limited information available on Sapria himalayana it is suggested that further ecological studies to document their host plants, population and threat assessment will aid in their conservation.  


2017 ◽  
Vol 20 (1) ◽  
pp. 1-20 ◽  
Author(s):  
FABIO ANGEOLETTO ◽  
JUAN PEDRO RUIZ SANZ ◽  
RICARDO MASSULO ALBERTIN ◽  
FREDERICO FONSECA DA SILVA

Abstract Home gardens have considerable biodiversity conservation potential. However, these spaces are unplanned, and there is little information about the flora diversity in the backyards of different social classes. The current study has quantified and compared plant diversity in the backyards of two neighborhoods located in the metropolitan region of Maringá - RMM (Paraná, Brazil), namely, Conjunto Triangulo and Zona 02. The diversity patterns were markedly different when the neighborhoods were compared. Therefore the present study has set some planning guidelines aiming at increasing the presence of woody vegetation, as well as at contributing to biodiversity conservation, including the conservation of endangered plant species, in the backyards of the RMM.


1982 ◽  
Vol 6 (4) ◽  
pp. 307-316 ◽  
Author(s):  
F. Glenn Goff ◽  
Gary A. Dawson ◽  
John J. Rochow

Koedoe ◽  
1998 ◽  
Vol 41 (2) ◽  
Author(s):  
I. Thrash

Succulents are an important component of the mixed bushveld. Although the nurse plant syndrome is known from arid areas, association of succulents with woody canopy has ot been studied in non-arid areas. The study was done in two phases, the first being to confirm the existence of an association and the second being to investigate a possible cause of the association. The three species studied were all significantly associated with woody canopy. All of the relatively small (0-1 m) Euphorbia ingens plants and most of the relatively small (0-0.5m) Aloe marlothii and Opuntia vulgaris plants encountered were beneath woody canopy. There was a very strong significant association between being damaged by fire and growing between woody canopies for all three species. Fires are likely to be lethal to any plants of the study species that are shorter than about 1 m. In any area where fires are frequent there are likely to be fewer young plants of the study species between woody canopies than there will be within the protection of a bush clump.


2020 ◽  
Vol 7 (2) ◽  
pp. 178-181
Author(s):  
Lalnun Mawia ◽  
Vanlalhruaii Ralte ◽  
H. Lalruatsanga ◽  
Zothan Mawia ◽  
P.C. Vanlalhluna ◽  
...  

Globba wengeri (C.E.C. Fisch.) K.J. Williams, former state flower of Mizoram, a rare and critically endangered plant species, commonly known as ‘dancing girl’, belonging to the family Zingiberaceae, is reported in this communication for the first time from Serchhip District in Mizoram at an elevation of about 1187 m a.s.l. It was found on moist, watery and rocky slopes. The plant is under severe threat in the natural habitat and therefore, further studies are required to determine life history and particular survival threats of this species.


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