A5009147669- Wildlife Ecology and Conservation
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Ecology and Vegetation Dynamics Studies
- Plant Parasitism and Resistance
- Animal Ecology and Behavior Studies
- Rangeland Management and Livestock Ecology
- Bat Biology and Ecology Studies
- Ecology and biodiversity studies
Meru University of Science and Technology
2017
Mutualisms often define ecosystems, but they are susceptible to human activities. Combining experiments, animal tracking, and mortality investigations, we show that the invasive big-headed ant (
Efforts to restore large carnivores often are conducted with an assumption of reciprocity, in which prey populations expected return levels approximating those prior carnivore extirpation. The extent this is met depends on the intensity predation, turn can be influenced by magnitude environmental change over period large-carnivore Recent declines hartebeest (Alcelaphus buselaphus) Laikipia, Kenya have coincided recolonization carnivores, particularly lions (Panthera leo), past 20 years. To...
Predator restorations often result in apparent competition, where co-occurring prey populations experience asymmetric predation pressure driven by predator preferences. In many rangeland ecosystems, livestock share the landscape with wildlife, including ungulates and large carnivores that consume them. We examined whether competition reorganized communities following restoration of lions (Panthera leo) to a savanna ecosystem, how management could alter this indirect interaction between their...
Abstract The vulnerability of an individual to predation depends on the availability other prey items in surrounding environment. Interspecific aggregations or “neighborhoods” may therefore affect individual's predation. We examined influence neighborhood structure (i.e., densities and identities neighborhoods) spatial variation a multi‐prey system with primary apex predator. combined GPS locations lions ( Panthera leo ), kill‐site surveys, spatially explicit density estimates five species...
In central Kenya, Ng'weno et al. used GPS relocations to find lion-killed ungulates and related kills the surrounding density of prey, vegetation cover, lion activity. Zebra made up bulk diets were killed more frequently in areas with low visibility. Buffalo when they did not associate zebra, while hartebeest association zebra. Such neighborhood effects have long been appreciated studies on plant–herbivore interactions. Ng’weno show that prey neighborhoods also are likely influence outcomes...