Journals Information
Advances in Zoology and Botany Vol. 8(3), pp. 233 - 242
DOI: 10.13189/azb.2020.080320
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Density and Population Structure of Globally Vulnerable and Endangered Trees in Chennai Metropolitan City, India
M. Udayakumar 1,*, A. Selvam 1, T. Sekar 2
1 Department of Plant Science, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, India
2 PG and Research Department of Botany, Pachaiyappa鈥檚 College, Chennai, Tamil Nadu, India
ABSTRACT
A quantitative floristic study was conducted in Chennai metropolitan city (CMC), Tamil Nadu, India to estimate density and population structure of trees categorized as vulnerable and endangered by International Union for Conservation of Nature and Natural Resources (IUCN) red-list. A total of one hundred 1鈥揾a (100 m 脳 100 m) square plots were randomly laid to estimate density and species richness of threatened trees in study area. All trees 鈮� 10 cm girth at breast height (gbh) were recorded, and identified up to species level on the field with the aid of regional floras and checklists. Six different land uses were recognised. In total, 10426 trees belonging to 99 species, 36 families and 86 genera were recorded. Of six land use categories, riverbanks had highest tree density (150.08 卤 21.02 trees ha-1) followed by parks (138.86 卤 29.08 trees ha-1) and institutional areas (98.77 卤 4.48 trees ha-1). In total, 1272 IUCN red-listed trees belonged to six families and eight genera were enumerated. Among land uses, educational institutions had largest number of threatened trees (374 individuals) followed by parks (327 individuals) and residential areas (228 individuals). We find Chennai's urban forests as home for seven vulnerable and three endangered tree species. This study reveals density and population structure of threatened trees growing in CMC, India.
KEYWORDS
Endangered Tree Species, South India, Threatened Species, Urban Forest, Vulnerable Tree Species
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] M. Udayakumar , A. Selvam , T. Sekar , "Density and Population Structure of Globally Vulnerable and Endangered Trees in Chennai Metropolitan City, India," Advances in Zoology and Botany, Vol. 8, No. 3, pp. 233 - 242, 2020. DOI: 10.13189/azb.2020.080320.
(b). APA Format:
M. Udayakumar , A. Selvam , T. Sekar (2020). Density and Population Structure of Globally Vulnerable and Endangered Trees in Chennai Metropolitan City, India. Advances in Zoology and Botany, 8(3), 233 - 242. DOI: 10.13189/azb.2020.080320.