Niche partititioning patterns have not been studied so far in burrowing tropical snakes of the families Typhlopidae and Leptotyphlopidae. In this study, we analyze temporal (= monthly activity) and spatial (= habitat use) niche dimensions in three species of burrowing snakes from the Niger Delta, Nigeria. Null model analyses, using two randomization algorithms and 30 000 Monte Carlo permutations, showed that there was random resource partitioning patterns as for the spatial niche dimension. One species (Rhinotyphlops punctatus) clearly dominated in the sample, and appeared to be more habitat generalist than the others. All three species showed an uneven monthly activity, with peaks occurring by wet season, and statistically significant positive correlations between mean monthly rainfall and number of captured snakes. However, there were significantly negative correlations between mean monthly temperature and number of captured snakes in two of the three species (Rhinotyphlops congestus; Leptotyphlops cfr. sundewalli).
Correlation between annual activity patterns of venomous snakes and rural people in the Niger Delta, southern Nigeria.
Journal of Venomous Animals and Toxins including Tropical Diseases19: 2:
Phylogenetic patterns, biogeography and the ecological structure of neotropical snake assemblages. In:
Species Diversity in Ecological Communities. Historical and Geographical Perspectives p.
RicklefsR.E.SchluterD. Eds University of Chicago PressChicago.
Life history strategies in basal snakes: reproduction and dietary habits of the African threadsnake, Leptotyphlops scutifrons (Serpentes, Leptotyphlopidae).
J. Zool. Lond.250: