Site‐to‐site differences in pollinator visitation patterns in a Louisiana iris hybrid zone

We studied pollinator visitation rates and movement patterns in experimental arrays of irises at two sites within a Louisiana iris hybrid zone. Arrays contained single‐flowered stems of red‐flowered I. fulva , blue‐flowered I. hexagona , and purple‐flowered F1 hybrids. At one site, where I. hexagona was the only wild‐growing iris, queen bumble bees were the most common pollinator, and the rank order of pollinator visit rates was I. hexagona I. fulva . At a second site, where I. fulva predominated in the wild, hummingbirds were the most common pollinators, and this order was reversed: I. hexagona

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