Islands act as natural refuges for plants, shrubs, and trees by providing protection from excessive grazing by deer and sheep. In areas where herbivores are abundant, their constant browsing prevents young trees from growing, stunts the regeneration of native woodlands, and limits plant diversity. However, on islands—whether naturally occurring or created by fencing and other conservation efforts—vegetation can flourish, offering a glimpse into how the landscape might appear if grazing pressure were reduced.
