List of publications 1. El-Ghazaly, N.A.; Moursi, A.A. and Hussein, H.K. (1987): Seasonal changes in testicular histology of the Egyptian lizard, Chalcides ocellatus. Delta J. Sci., 11(2): 951-975. 2. El-Ghazaly, N.A.; Moursi, A.A. and Hussein, H.K. (1987): Effect of light and temperature on the testicular recrudescence of lizard, Chalcides ocellatus. Com. Sci. & Dev. Res., 19: 181-196. 3. Kayed, A.N.; El-Ghazaly, N.A.; Moursi, A.A. and Hussein, H.K. (1989): Feeding behaviour of the Egyptian lizard, Chalcides ocellatus. Delta J. Sci. 13(3): 17221733. 4. Kayed, A.N.; El-Ghazaly, N.A.; Moursi, A.A. and Hussein, H.K. (1989): Food consumption of the Egyptian lizard, Chalcides ocellatus. Delta J. Sci. 13 (4): 4046-4058. 5. Kayed, A.N.; El-Ghazaly, N.A.; Moursi, A.A. and Hussein, H.K. (1989): Oxygen consumption in the Egyptian lizard, Chalcides ocellatus. J. Egypt. Ger. Soc. Zool. (1): 15-25. 6. Kayed, A.N.; El-Ghazaly, N.A.; Moursi, A.A. and Hussein, H.K. (1990): Effect of seasons on growth rate of the Egyptian lizard, Chalcides ocellatus. J. Egypt. Ger. Soc. Zool. (2): 131-143. 7. El-Ghazaly, N.A.; Kayed, A.N.; Moursi, A.A. and Hussein, H.K. (1990): Effect of seasons on food assimilation and assimilation efficiency in the Egyptian lizard, Chalcides ocellatus. J. Egypt. Ger. Soc. Zool. (2): 253-263. 8. Hussein, H.K. (1991): Behavioural thermoregulation and activity cycles in desert lizards. Sahara Review, 4: 1-18. 9. Hussein, H.K. (1991): Behavioural thermoregulation and physiological adaptations of amphibians to aridity. Sahara Review, 5: 35-70. 10. EL-Ghazaly, N.A. and Hussein, H.K. (1991): Thermal behaviour, heat exchange and lethal temperature in two lizard species, Agama stellio and Ptychodactylus hassiliquistii. J. Egypt. Ger. Soc. Zool. (5): 165-176. 11. Hussein, H.K. and Said, K.M. (1991): Effect of temperature and feeding on body weight and physiological parameters of the blood in the lizard, Agama stellio. J. Egypt. Ger. Soc. Zool. 6 (A): 337-348. 12. El-Zoheiy, A.H. and Hussein, H.K. (1991): Thermal relation and its tolerance in lizard, Varanus griseus. Com. Sci. Dev. Res. (36): 123-136. 13. Hussein, H.K. (1992): Influence of habitat topography on the daily activity times and body temperature on the desert lizard, Acanthodactylus boskianus Asper (Reptilia: Lacertidae). Bull. Fac. Sci. Zag. Univ., 14 (2): 418-437. 14. Said, K.M. and Hussein, H.K. (1992): Seasonal fluctuation in the fat storage of the lizard, Scincus officinalis and its adaptive significance to gonadal activity. J. Egypt. Ger. Soc. Zool. 7 (A): 1-15. 15. El-Mekkawy, D.A. and Hussein, H.K. (1992): Effect of temperature on the developmental rate of larval and metamorphic stages of Egyptian toad, Bufo regularis. J. Egypt. Ger. Soc. Zool. 8 (B): 235-248. 16. Hussein, H.K. and El-Sarha, A.I. (1992): Effects of photoperiod and temperature on body weight and food intake in the albino Sprague Dawely rat. J. Egypt. Ger. Soc. Zool. 9 (A): 229-242. 17. Hussein, H.K. (1993): Seasonal variation of daily activity times in gekkonid lizards inhabiting Burg El-Arab region, west of Alexandria. J. Egypt. Ger. Soc. Zool., 11 (A): 231-245. 18. Hussein, H.K. and EL-Ghazaly, N.A. (1993): Seasonal fluctuations in the distribution of rodents at Khorshid region (east of Alexandria) and the food preference of the most abundant species. Bull. Fac. Sci. Zagazig Univ. 15 (2): 630-647. 19. Hussein, H.K. and El-Sarha, A.I. (1993): Effect of environmental pollution by some pesticides on he mortality rate and behaviour of the Nile bolti, Tilapia nilotica. Alex J. Vet. Sci. 9 (2): 17-24. 20. Hussein, H.K. (1994): Effects of seasonal changes in the environment on the niche shift, foraging strategies and social behaviour of the lizard, Agama stellio. J. Egypt. Ger. Soc. Zool., 15 (A): 405-424. 21. El-Sarha, A.I. and Hussein, H.K. (1994): Pollution of ground water by mercury and its residues in chicken tissues. Bull. Fac. Sci. Alex. Univ. 34 (2): 187-197. 22. Hussein, H.K. (1995): The effect of population density, food level and competition on growth and metamorphosis in larval Egyptian toad, Bufo regularis. Bull. Fac. Sci. Alex. Univ. 35 (1): 141-149. 23. Hussein, H.K. and Akef, M.S.A. (1995): Oxygen consumption and temperature acclimation in Bufo regularis (Bufonidae) and Ptychadena mascareniences (Ranidae). J. Egypt. Ger. Soc. Zool. 16 (A): 165-175. 24. El-Ghazaly, N.A.; Dekinesh, S.I.; Moursi, A.A.; Hussein, H.K. and Abdou, H.M. (1995): Effects of normal and artificial conditions of light and temperature on some blood parameters of three species of Egyptian lizards. J. Egypt. Ger. Soc. Zool., 18 (A): 227-242. 25. El-Ghazaly, N.A.; Dekinesh, S.I.; Moursi, A.A.; Hussein, H.K. and Abdou, H.M. (1995): The locomotor activity patterns of three Egyptian lizard species under the influence of different conditions of light and temperature. J. Egypt. Ger. Soc. Zool. 18 (A): 257-278. 26. El-Ghazaly, N.A.; Dekinesh, S.I.; Moursi, A.A.; Hussein, H.K. and Abdou, H.M. (1995): Studies on the growth rates of three lizard species under the influence of normal and artificial conditions of light and temperature. J. Egypt. Ger. Soc. Zool., 18 (A): 413-434. 27. Hussein, H.K. (1997): Some demographic changes of Rattus rattus populations provided extra food. J. Egypt Ger. Soc. Zool. 24 (A): 391-412. 28. Hussein, H.K. (1998): The ecological significance of daily and seasonal shifts in thermoregulation by the sand snake, Lytorhynchus diadema. J. Egypt. Ger. Soc. Zool., 27 (A): 361-378. 29. Hussein, H.K. (2000): The relationship between microhabitat selection and behavioural thermoregulation in two elevationally distinct populations of Laudakia stellio in Saudi Arabia. J. Egypt. Ger. Soc. Zool., 31 (A): 67-80. 30. Hussein, H.K. and Darwish, A.D.M. (2000): Variation in developmental duration and metamorphosis of the green toad, Bufo viridis in temporary ponds as an adaptation to desert environment. Pak. J. Biol. Sci., 3 (10): 1784-1789. 31. Hussein, H.K. and Darwish, A.D.M. (2000): Adaptive thermoregulation and metabolic acclimation in Rattus rattus populations living on two different habitats. J. Egypt. Ger. Soc. Zool., 31 (A): 97-109. 32. Hussein, H.K. and Darwish, A.D.M. (2000): Community structure, microhabitat use, sex ratio and sexual dimorphism in the agamid lizard, agama agama spinosa. Pak. J. Biol. Sci. 3 (10): 1700-1704. 33. Darwish, A.D.M. and Hussein, H.K. (2000): Ecological significance of geographic differences in growth rate of the sand lizard, Acanthodactylus boskianus. Pak. J. Biol. Sci. 3 (12): 2154-2158. 34. El-Masry, A.A. and Hussein, H.K (2005): Thermal relations, metabolism and winter dormancy of the sand lizard, Acanthodactylus boskianus. Pak. J. Biol. Sci. 4 (4): 492-497. 35. Said, K.M. and Hussein, H.K. (2006): Variations in some haematological parameters and gonadal indices of Uromastyx aegyptius during hibernation and active periods. Egypt. J. Biol., 3: 81-85. 36. Hussein, H.K. and Darwish, A.D.M. (2006): A survey of the herpetofauna of Bisha district, south of Saudi Arabia. Online J. Biol. Sci., 1 (8): 728-730.