Example Sentences

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Species are divided into two categories based on a variety of features of their life history patterns: r-selected species, which have large numbers of offspring, and K-selected species, which have few offspring.

From Textbooks • Jun. 9, 2022

The regulation of population growth by these factors can be used to introduce a classical concept in population biology, that of K-selected versus r-selected species.

From Textbooks • Jun. 9, 2022

Animals that are r-selected do not give long-term parental care and the offspring are relatively mature and self-sufficient at birth.

From Textbooks • Jun. 9, 2022

Elephants would be an example of a K-selected species. r-selected species are adapted to unstable and unpredictable environments.

From Textbooks • Sep. 6, 2018

Ungulates practise K-selection and are viviparous; Mesozoic dinosaurs seem to have been mostly r-selected, and of course they were oviparous nest-builders.

From Scientific American • Jan. 5, 2012