Roost characteristics and habitat preferences of Indian fying fox ( Pteropus giganteus) in urban areas of Lahore, Pakistan

Abstract

Roost characteristics of Indian fying fox Pteropus giganteus at the Jinnah (n = 1052) and Lalazar (n = 40) gardens in Lahorewere observed for a period of 1 year to fnd roost preferences in these bats. The Jinnah garden harbors 4119 trees belonging to 46families, 103 genera, and 132 species, of which 44 trees belonging to 17 families, 19 genera, and 21 species served as bat roosts. TheLalazar garden harbors 90 trees representing 7 families, 9 genera, and 9 species. Six of these belonging to 2 families, 2 genera, and 2species each served as bat roosts. Height of the roosting trees varied from 7.5 m (Dendrocalamus hamiltonii) to 19.8 m (Celtis australis)and diameter at breast height (dbh) ranged from 0.10 m ( Putranjiva roxburghii) to 0.89 m (Kigelia pinnata). Maximum average bats(n = 88) were roosting in P. roxburghii with total height of 13.4 m and dbh of 0.1 m, whereas minimum bats (n = 8) were observed onManilkara hexandra having height of 14.4 m and dbh of 0.24 m. It can be concluded from the present study that P. giganteus prefers toroost near water bodies on tall trees with relatively smaller diameters.