Glossary

A pulse fruiter is a plant that produces a concentrated burst of fruit in a short seasonal window — quickly consumed by wildlife and often gone within days. Unlike plants that produce fruit gradually across weeks or months, pulse fruiters time their production to critical seasonal gaps when other food sources are scarce.

In the Santa Cruz Mountains, Blue Elderberry (Sambucus nigra ssp. caerulea) is the clearest example. Dense clusters of blue-black berries ripen in midsummer during the dry season, and birds such as Band-tailed Pigeons, American Robins, Western Bluebirds, and Cedar Waxwings descend on the shrubs and strip them clean within days — a concentrated food event that can shape bird movements and fuel migration.

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