May 2013
Possibility of species extinction in the periodical forced prey-predator model
The response of the Lotka-Volterra system forced by periodical modulation was numerically simulated in a wide frequency range. The main question is: how does the change of environment A parameter influence the behavior of such a system? The answer to this question is the main purpose of this paper. In the resonance region, the oscillation of the system fits to the forced frequency (or its harmonics) and shows...
May 2013
Population studies, habitat assessment and threat categorization of Polygonatum verticillatum (L.) Allioni in Kumaun Himalaya
Natural populations of Polygonatum verticillatum in Kumaun Himalaya were surveyed for population studies, habitat assessment and threat status. This research reveals density of individuals and area occupied were low as compared to other species of the region, indicating habitat loss and heavy exploitation. Status was determined on a site-to-site basisfor the entire Kumaun region. Based on...
May 2013
Distribution and abundance of small mammals in different habitat types in the Owabi Wildlife Sanctuary, Ghana
Information on the small mammal communities of the Owabi Wildlife Sanctuary is virtually non-existent despite their role in forest ecosystems. A total of 1,500 trap-nights yielded 121 individuals of rodents and shrews, comprising five species: Praomys tullbergi, Lophuromys sikapusi, Hybomys trivirgatus, Malacomys edwardsi and Crocidura buettikoferi, captured in Sherman traps using 20...
