Literature cited
- Akani , G.C. , Eniang , E.A. , Ekpo , I.J. , Angelici , F.M. and Luiselli , L. 2002a . Thermal and reproductive ecology of the snake Psammophis phillipsi from the rainforest region of southern Nigeria (West Africa) . Herpetol. J. , 12 : 63 – 67 .
- Akani , G.C. , Eyo , E. , Odegbune , E. , Eniang , E.A. and Luiselli , L. 2002b . Ecological patterns of anthropogenic mortality of suburban snakes in an African tropical region . Israel J. Zool. , 48 : 1 – 11 .
- Akani , G.C. , Eniang , E.A. , Ekpo , I.J. , Angelici , F.M. and Luiselli , L. 2003 . Food habits of the snake Psammophis phillipsi from the continuous rainforest region of southern Nigeria (West Africa) . J. Herpetol. , 37 in press
- Arnold , E.N. 1994 . Evolutionary aspects of tail shedding in lizards and their relatives . J. Nat. Hist. , 18 : 127 – 169 .
- Arnold , E.N. 1988 . “ Caudal autotomy as a defense ” . In Biology of the Reptilia, vol. 16, Ecology B: Defense and Life History , Edited by: Gans , C. and Huey , R.B. vol. 16 , 235 – 273 . New York : Alan R. Liss .
- Broadley , D.G. 1966 . A review of the African stripe‐bellied sandsnakes of the genus Psammophis . Arnoldia (Rhodesia) , 2 : 1 – 9 .
- Broadley , D.G. 1977 . A review of the genus Psammophis in southern Africa (Serpentes: Colubridae) . Arnoldia (Rhodesia) , 8 : 1 – 29 .
- Broadley , D.G. 1987 . Caudal autotomy in African snakes of the genera Natriciteres Loveridge and Psammophis Boie . J. Herpetol. Assoc. Afr. , 33 : 18 – 19 .
- Butler , J.A. 1993 . Seasonal reproduction in the African olive grass snake, Psammophis phillipsi (Serpentes: Colubridae) . J. Herpetol. , 27 : 144 – 148 .
- Chippaux , J.‐P. 1999 . Les Serpents d’ Afrique occidentale et centrale , Paris : IRD Editions .
- Etheridge , R. 1967 . Lizard caudal vertebrae . Copeia , : 699 – 721 . 1967
- Hughes , B. 1999 . Critical review of a revision of Psammophis (Linnaeus 1758) (Serpentes, Reptilia) by Frank Brandstätter . Afr. J. Herpetol. , 48 : 63 – 70 .
- Luiselli , L. 2001 . The ghost of a recent invasion in the reduced feeding rates of spitting cobras during the dry season in a rainforest region of tropical Africa? . Acta Oecol. , 22 : 311 – 314 .
- Luiselli , L. and Akani , G.C. 2002 . An investigation into the composition, complexity and functioning of snake communities in the mangroves of south‐eastern Nigeria . Afr. J. Ecol. , 40 : 220 – 227 .
- Luiselli , L. , Angelici , F.M. and Akani , G.C. 2002 . Comparative feeding strategies and dietary plasticity of the sympatric cobras Naja melanoleuca and Naja nigricollis, in three diverging Afrotropical habitats . Can. J. Zool. , 80 : 55 – 63 .
- Mendelson , J.R. III . 1992 . Frequency of tail breakage in Coniophanes fissidens (Serpentes: Colubridae) . Herpetologica , 48 : 448 – 455 .
- Saint Girons , H. 1982 . Reproductive cycles of male snakes and their relationships with climate and female cycles . Herpetologica , 38 : 5 – 16 .
- Saint Girons , H. and Pfeffer , P. 1971 . Le cycle sexuel de serpents de Cambodge . Ann. Sci. Nat. Zool. , 13 : 543 – 571 .
- Schoener , T.W. 1979 . Inferring the properties of predation and other injury‐producing agents from injury frequencies . Ecology , 60 : 1110 – 1115 .
- Schoener , T.W. and Schoener , A. 1980 . Ecological and demographic correlates of injury rates in some Bahamian Anolis lizards . Copeia , : 839 – 850 . 1980
- Statsoft Inc. 1996 . STATISTICA for Windows, release 5.0 , Tulsa : Statsoft Inc .