Sustainable Wildlife Conservation at Okomu National Park

Demographic connectivity for ursid populations at wildlife crossing structures in Banff National Park.

Wildlife crossing structures are one solution to mitigating the fragmentation of wildlife populations caused by roads, but their effectiveness in providing connectivity has only been superficially evaluated. Hundreds of grizzly (Ursus arctos) and black bear (Ursus americanus) passages through under and overpasses have been recorded in Banff National Park, Alberta, Canada. However, the ability o...

Genetic connectivity for two bear species at wildlife crossing structures in Banff National Park.

Roads can fragment and isolate wildlife populations, which will eventually decrease genetic diversity within populations. Wildlife crossing structures may counteract these impacts, but most crossings are relatively new, and there is little evidence that they facilitate gene flow. We conducted a three-year research project in Banff National Park, Alberta, to evaluate the effectiveness of wildlif...

On the merits and feasibility of wildlife monitoring for conservation: a case study from Katavi National Park, Tanzania

Although long-term monitoring is viewed as an essential part of conserving wildlife populations, it is currently carried out in surprisingly few protected areas in Africa. Here, data from a 16-year vehicle transect monitoring programme in Katavi National Park, western Tanzania, are presented. These data provide information on large mammal densities, identify declines in populations of several l...

Wildlife Disease Research at the Aphis National Wildlife Research Center

Global Conservation Significance of Ecuador's Yasun National Park

Background: The threats facing Ecuador’s Yasunı́ National Park are emblematic of those confronting the greater western Amazon, one of the world’s last high-biodiversity wilderness areas. Notably, the country’s second largest untapped oil reserves—called ‘‘ITT’’—lie beneath an intact, remote section of the park. The conservation significance of Yasunı́ may weigh heavily in upcoming state-level and...