Visual illusions in predator-prey interactions: birds find moving patterned prey harder to catch

Verfasser / Beitragende:
[Liisa Hämäläinen, Janne Valkonen, Johanna Mappes, Bibiana Rojas]
Ort, Verlag, Jahr:
2015
Enthalten in:
Animal Cognition, 18/5(2015-09-01), 1059-1068
Format:
Artikel (online)
ID: 605542546
LEADER caa a22 4500
001 605542546
003 CHVBK
005 20210128100922.0
007 cr unu---uuuuu
008 210128e20150901xx s 000 0 eng
024 7 0 |a 10.1007/s10071-015-0874-0  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10071-015-0874-0 
245 0 0 |a Visual illusions in predator-prey interactions: birds find moving patterned prey harder to catch  |h [Elektronische Daten]  |c [Liisa Hämäläinen, Janne Valkonen, Johanna Mappes, Bibiana Rojas] 
520 3 |a Several antipredator strategies are related to prey colouration. Some colour patterns can create visual illusions during movement (such as motion dazzle), making it difficult for a predator to capture moving prey successfully. Experimental evidence about motion dazzle, however, is still very scarce and comes only from studies using human predators capturing moving prey items in computer games. We tested a motion dazzle effect using for the first time natural predators (wild great tits, Parus major). We used artificial prey items bearing three different colour patterns: uniform brown (control), black with elongated yellow pattern and black with interrupted yellow pattern. The last two resembled colour patterns of the aposematic, polymorphic dart-poison frog Dendrobates tinctorius. We specifically tested whether an elongated colour pattern could create visual illusions when combined with straight movement. Our results, however, do not support this hypothesis. We found no differences in the number of successful attacks towards prey items with different patterns (elongated/interrupted) moving linearly. Nevertheless, both prey types were significantly more difficult to catch compared to the uniform brown prey, indicating that both colour patterns could provide some benefit for a moving individual. Surprisingly, no effect of background (complex vs. plain) was found. This is the first experiment with moving prey showing that some colour patterns can affect avian predators' ability to capture moving prey, but the mechanisms lowering the capture rate are still poorly understood. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Aposematism  |2 nationallicence 
690 7 |a Colour polymorphism  |2 nationallicence 
690 7 |a Motion dazzle  |2 nationallicence 
690 7 |a Predator-prey interactions  |2 nationallicence 
690 7 |a Visual illusions  |2 nationallicence 
700 1 |a Hämäläinen  |D Liisa  |u Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland  |4 aut 
700 1 |a Valkonen  |D Janne  |u Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland  |4 aut 
700 1 |a Mappes  |D Johanna  |u Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland  |4 aut 
700 1 |a Rojas  |D Bibiana  |u Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland  |4 aut 
773 0 |t Animal Cognition  |d Springer Berlin Heidelberg  |g 18/5(2015-09-01), 1059-1068  |x 1435-9448  |q 18:5<1059  |1 2015  |2 18  |o 10071 
856 4 0 |u https://doi.org/10.1007/s10071-015-0874-0  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10071-015-0874-0  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hämäläinen  |D Liisa  |u Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Valkonen  |D Janne  |u Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Mappes  |D Johanna  |u Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Rojas  |D Bibiana  |u Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Animal Cognition  |d Springer Berlin Heidelberg  |g 18/5(2015-09-01), 1059-1068  |x 1435-9448  |q 18:5<1059  |1 2015  |2 18  |o 10071