predation pressure

American  

noun

Ecology.

1. the effect of predation upon a population, resulting in the decrease in size of that population.

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Etymology

Origin of predation pressure

First recorded in 1940–45

Example Sentences

"Our results indicate that relaxed predation pressure is key to warning signal variation in this species, whereas stronger pressure leads to signal conformity and stronger signals," said Professor Caro.

From Science Daily • Nov. 21, 2023

The control effort, to which Western Australia’s baiting program belongs, was meant to ease the predation pressure that cats exerted in every corner of the country where they had settled.

From New York Times • Apr. 25, 2019

When the lynx population is low, the hare population size begins to increase due, in part, to low predation pressure, starting the cycle anew.

From Textbooks • Sep. 6, 2018

In a mere two years, the guppies evolved from drab-colored with small spots to colorful with larger spots in response to the great lessening of predation pressure.

From Washington Post • Aug. 25, 2017

Although voles were a common item of prey for many species of predators on the Reservation, no marked effect on the density of the population of this vole could be attributed to predation pressure.

From A Population Study of the Prairie Vole (Microtus ochrogaster) in Northeastern Kansas by Martin, Edwin P.