Publication Type: | Journal Article |
Year of Publication: | 2011 |
Authors: | Fern, Gall, MD, Dolan, T, O'Rourke, C, Thomas, S, Lynch, JR |
Journal: | Animal Behaviour |
Volume: | 81 |
Issue: | 4 |
Date Published: | 2011 |
ISBN Number: | 0003-3472 |
Keywords: | binocular vision, Emberizidae, foraging, fovea, Melozone, Melozone crissalis, predation, retinal topography, scanning, vigilance, visual field, Zonotrichia, Zonotrichia leucophrys |
Abstract: | Predator-prey interactions are regulated by the ability of individuals to detect, and then approach or avoid, each other. In visually guided organisms, the prevalent view is that predators have large binocular visual fields and high acuity, whereas prey have wide lateral areas and low acuity, which could affect vigilance behaviour. We characterized the configuration of the visual system (visual fields, retinal topography, visual acuity) and vigilance behaviour (head movement rate) of two ground-foraging avian prey (white-crowned sparrow, Zonotrichia leucophrys, California towhee, Pipilo crissalis) with laterally placed eyes. We found that the binocular field of both species (45 |
URL: | http://www.sciencedirect.com/science/article/pii/S0003347210004574 |
Short Title: | Animal Behaviour |
Taxonomic name: