Creating monarch waystations with milkweed and native nectar plants provides critical habitat for this iconic migratory butterfly whose populations have declined by over 80% in recent decades.
Individual monarch welfare involves nutritional stress during migration when nectar sources are absent, larval starvation when milkweed is unavailable, temperature stress during migration, and pesticide exposure. The scale of population decline reflects cumulative individual welfare and reproductive failures. Planting native milkweed species (not tropical milkweed in northern regions, which disrupts migration) and autumn nectar flowers provides directly measurable welfare support. Pesticide reduction reduces direct toxicity and indirect starvation through herbicide-driven milkweed loss.