Qualitative Defenses

Definition

Chemical defenses that are produced in low concentrations and often found in unpredictable (short-lived) plant tissues, used to deter herbivory by insects.

Etymology

From Latin 'qualitas', meaning 'quality' and 'defensio', meaning 'protection'.

Example

Plants may produce qualitative defenses like alkaloids, which are toxic to insects.

Related Terms

• Quantitative Defenses
• Plant Defense

Usage Notes

Qualitative defenses are often rapidly synthesized and degrade quickly, making them effective for short-term protection.