📜 Theorem, law or theory

Shelford's Law of Tolerance

Ley de la tolerancia de Shelford

Date
1911 · confidence high
Place
Chicago, Illinois, United States
Credited to
Victor Ernest Shelford
Field
Life & health

What was discovered

Shelford's law of tolerance states that an organism's success depends on a complex set of conditions, and that each species has a minimum, a maximum and an optimum for each environmental factor that determine its presence and abundance. It was formulated by American zoologist Victor Ernest Shelford in 1911, extending Liebig's law of the minimum by noting that factors act in concert.

What it led to

  • Central concept of population ecology and autecology
  • Basis for defining a species' ecological niche
  • Application in species and habitat management

Links

Sources✓ verified 2026-09-28