BIOLOGIA (PAKISTAN) ISSN 0006-3096 (Print) ISSN 2313-206X (Online) BIOLOGIA (PAKISTAN) June 2014 Vol. 60, No.1, Editor-in-Chief AZIZULLAH EDITORS PAKISTAN FOREIGN Nusrat Jahan (GCUL) Ashraf Muhammed Ahmed Ali (S. Arabia) Ghazala Yasmeen (GCUL) Athar Tariq (U.S.A.) Khalid Pervaiz Lone (Health Univ.) Imumorin, Ikhide Godwin (U.S.A.) Syed Shahid Ali (LU) B. Faye (France) Muhammad Saleem (PU) Salih Dogan (Turkey) Aamir Ali (UOS) Wolfgang Von Engelhardt (Germany) Hassan Sher (Swat Univ.) Qi Bin Zhang (China) Managing Editors Abdul Qayyum Khan Sulehria (Zoology) Tanzeem Akbar Cheema (Botany) Sub-editor Naila Malkani BIOLOGICAL SOCIETY OF PAKISTAN Biological Laboratories, GC University, Lahore, Pakistan www.biosoc.pk