sexual selection

Definition
  1. Noun:
    • Biological concept: "Sexual selection" is a mode of natural selection where individuals with certain inherited characteristics are more likely than other individuals of the same sex to obtain mates. It specifically refers to the advantage certain traits give an organism in competing for a mate, rather than for survival.
Usage Examples
  • (The concept that such traits help attract mates.)
  • (Differences in appearance due to mating competition.)
  • (A process where one sex selects mates based on specific traits.)
Advanced Usage

  • "Intrasexual selection": a form of sexual selection involving competition between members of the same sex (usually males) for access to mates.

    • Intrasexual selection is seen in male deer fighting with antlers for dominance. (Competition among males for mating rights.)

  • "Intersexual selection": a form of sexual selection where individuals of one sex (usually females) choose mates based on certain traits.

    • Intersexual selection occurs when female birds select males with the most elaborate songs. (Mate choice by one sex based on characteristics.)
Variants and Related Words

  • Selective (adj): relating to the process of choosing or being chosen.

    • The selective pressure of sexual selection drives the evolution of ornaments. (The choosing process in mating.)

  • Selection pressure (n): an environmental factor that influences the survival and reproduction of individuals.

    • Sexual selection creates a strong selection pressure for bright colours in some fish. (A factor affecting reproductive success.)
Synonyms
  • Mate choice: the process by which individuals choose partners for reproduction.
  • Mating competition: the struggle among individuals of the same sex to secure mates.
Related Idioms
  • Survival of the fittest: a phrase often associated with natural selection, but not directly with sexual selection; it emphasizes reproductive success.
    • In sexual selection, "survival of the fittest" can mean the most attractive, not the strongest. (Reproductive success through mate attraction.)