Concepts

Predicts that fast-growing plants in high resource environments invest less in defense because they can easily regrow after herbivory

Females should choose nesting sites that best protect them and their offspring from severe or unpredictable weather events, such as extreme temperatures or high wind

An individual locus shows strong adaptive fitness effects in one habitat, but little or no cost in other habitats

The degree to which novel resources resemble historical resources in their chemical or physical cues