marking pheromone

Marking pheromones are chemicals produced by animals to signal their presence or territory to others of the same species. Unlike alarm pheromones, which need to dissipate quickly, marking pheromones are designed for persistence to convey a long-term signal. These signals are crucial for territorial behavior, helping animals define and maintain their boundaries.12

The chemical composition of marking pheromones can be complex, often involving mixtures of compounds. This complexity allows for individual specificity, enabling animals to distinguish between different individuals within a species. For example, antelope use secretions from preorbital glands, which contain over 40 compounds, to mark their territory. These pheromones can be deposited on objects like grass or twigs, or in fecal middens. The persistence of these marks can be influenced by factors like the volatility of the compounds and the presence of chemicals that slow their degradation.12