Ultra-Rapid Vision in Birds
| Autor: | Anders Ödeen, Cindy Canton, Olle Håstad, Anna Qvarnström, Jannika E. Boström, Marina Dimitrova |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine genetic structures Vision lcsh:Medicine Social Sciences Predation 01 natural sciences Ornithology Selective advantage Psychology lcsh:Science Biological sciences Multidisciplinary Natural selection Ecology Animal Behavior biology Vertebrate Passerine Trophic Interactions Insects Community Ecology Vertebrates Passerines Sensory Perception Research Article Arthropoda Zoology 010603 evolutionary biology Zoologi Birds 03 medical and health sciences biology.animal Animals Animal Physiology Vision Ocular Behavior Raptors lcsh:R Ecology and Environmental Sciences Organisms Biology and Life Sciences Invertebrates Bird Physiology 030104 developmental biology Temporal resolution lcsh:Q Temporal acuity Neuroscience |
| Zdroj: | PLoS ONE PLoS ONE, Vol 11, Iss 3, p e0151099 (2016) |
| Popis: | Flying animals need to accurately detect, identify and track fast-moving objects and these behavioral requirements are likely to strongly select for abilities to resolve visual detail in time. However, evidence of highly elevated temporal acuity relative to non-flying animals has so far been confined to insects while it has been missing in birds. With behavioral experiments on three wild passerine species, blue tits, collared and pied flycatchers, we demonstrate temporal acuities of vision far exceeding predictions based on the sizes and metabolic rates of these birds. This implies a history of strong natural selection on temporal resolution. These birds can resolve alternating light-dark cycles at up to 145 Hz (average: 129, 127 and 137, respectively), which is ca. 50 Hz over the highest frequency shown in any other vertebrate. We argue that rapid vision should confer a selective advantage in many bird species that are ecologically similar to the three species examined in our study. Thus, rapid vision may be a more typical avian trait than the famously sharp vision found in birds of prey. |
| Databáze: | OpenAIRE |
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