Text 1
In parts of Finland, the least weasel is a major predator of the field vole. Researcher Tero Klemola and colleagues found that when this predation pressure on field voles was temporarily reduced, their numbers significantly increased. This finding illustrates a foundational ecological principle: predators control prey population numbers.
Text 2
Michel Crête and Hélène Jolicoeur found that excluding wolves from a site in Quebec, Canada, where they typically prey on moose had no significant effect on moose abundance. Many other predation relief studies show an increase in prey abundance, but those studies often focus on small, rapidly reproducing prey, like birds, voles, and rabbits, rather than large, slowly reproducing prey, like moose, which could account for the difference between those results and Crête and Jolicoeur’s results.
In parts of Finland, the least weasel is a major predator of the field vole. Researcher Tero Klemola and colleagues found that when this predation pressure on field voles was temporarily reduced, their numbers significantly increased. This finding illustrates a foundational ecological principle: predators control prey population numbers.
Text 2
Michel Crête and Hélène Jolicoeur found that excluding wolves from a site in Quebec, Canada, where they typically prey on moose had no significant effect on moose abundance. Many other predation relief studies show an increase in prey abundance, but those studies often focus on small, rapidly reproducing prey, like birds, voles, and rabbits, rather than large, slowly reproducing prey, like moose, which could account for the difference between those results and Crête and Jolicoeur’s results.