The very existence of predation -- animals eating animals -- is the cause of much anguished hand-wringing in animal rights circles.
But on closer scrutiny, the preceding challenges of livestock predation, stray animals and deaths of animals following collisions on highways and so on have part of their root causes in encroachment of pastoral rangelands by other, often competing, land users.
In response to an increase in predation risk, animals usually alter their behaviour to avoid being caught by predators or to keep them away [1], [2], [3], [4], [5], [6].
Usually, Nowicki explains, the harsh reality of predation limits animals' tendencies to develop complex signals or showy displays as a means of impressing mates.
In addition, however, it can plausibly be argued that, though it is possible that earthquakes, hurricanes, cancer, and the predation of animals are all caused by malevolent supernatural beings, the probability that this is so is extremely low.
This organ is thought to aid in seed dispersal and prevent predation by animals.
Seedlings were protected to avoid predation by animals (rodents, birds, or ants), and no special management was applied during the experiment duration.
Some of these bioactive compounds that are synthesized as secondary metabolites as the plant grows are also used to protect the plant against microbial attacks and predation by animals [ 8].
In the presence of a predation threat, animals show a wide variety of responses, which generally include the combined use of visual, auditory, or olfactory signals to communicate to conspecifics or to predators (Caro 2005).
