Search the Article Database:

Search our library of articles, papers and other published materials. You can use keywords or boolean-style search:

Viability analysis of Kordofan giraffe (Giraffa camelopardalis antiquorum) in a protected area in Cameroon

Representing one of the last populations of an IUCN Critically Endangered subspecies, estimates suggest the Kordofan giraffe of Cameroon’s Bénoué Complex number fewer than 300 individuals, threatened by poaching and habitat degradation. This study investigated the viability of Bénoué National Park’s Kordofan giraffe and efficacy of available interventions through a population viability analysis using VORTEX. The relative impacts of anti-poaching activity, population supplementation, habitat protection and vaccination were explored, alongside a sensitivity analysis investigating parameter uncertainty. The baseline model projects

View Details + Download

Early detection of declining populations using floor and ceiling models

1. Within Caughley’s (1994) declining population paradigm for conservation, we develop a realistic method of detecting population changes using floor and ceiling population models. 2. A theoretical framework for detecting declining populations is presented and applied to four ungulate species from Kruger National Park, South Africa. 3. Census data are fitted to a non-linear autoregressive population model. Based on this model two auxiliary models, called the floor and ceiling models, are derived. These models predict the upper and lower threshold

View Details + Download