[1] Zool Survey India, Kolkata 700053, W Bengal, India
[2] Nalanda Univ, Sch Ecol & Environm Studies, Nalanda 803116, Bihar, India
[3] World Bank Grp India Off, Int Finance Corp, New Delhi, India
[4] Presidency Univ, Dept Life Sci, Kolkata 700073, W Bengal, India