Increased speed of movement reduced identification of Batesian ant-mimicking spiders by surrogate predators
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00119296" target="_blank" >RIV/00216224:14310/21:00119296 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.1007/s10071-021-01517-0" target="_blank" >https://doi.org/10.1007/s10071-021-01517-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10071-021-01517-0" target="_blank" >10.1007/s10071-021-01517-0</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Increased speed of movement reduced identification of Batesian ant-mimicking spiders by surrogate predators
Popis výsledku v původním jazyce
In Batesian mimicry, the mimic gains protection from predators by imitating a noxious model. Some myrmecomorphic species use ants as models as ants have strong defensive capabilities. Ants are highly mobile models, and besides colour, shape, and size, mimics also imitate their movement. Yet, former studies focused mainly on static traits. Here, I tested the hypothesis that artificially increased speed of movement reduces the probability of the mimic being identified. First, images of 14 myrmecomorphic spider species and their models were used for humans to rank their mimetic accuracy. Humans were used as surrogate predators to obtain scores for each mimetic pair. In the second experiment, the effect of movement playback speed on the probability of identification was investigated, again using humans. Videos of mimics were played at different speeds, and the identification probability was recorded. While ants were correctly identified at any playback speed, the identification of myrmecomorphic spiders declined with increasing playback speed. In other words, the latency to correct identification increased with playback speed. Overall, mimics with higher accuracy scores were more difficult to identify while moving. The natural speed of movement of accurate mimics was similar to that of inaccurate ones. Movement is thus an important trait for myrmecomorphic species.
Název v anglickém jazyce
Increased speed of movement reduced identification of Batesian ant-mimicking spiders by surrogate predators
Popis výsledku anglicky
In Batesian mimicry, the mimic gains protection from predators by imitating a noxious model. Some myrmecomorphic species use ants as models as ants have strong defensive capabilities. Ants are highly mobile models, and besides colour, shape, and size, mimics also imitate their movement. Yet, former studies focused mainly on static traits. Here, I tested the hypothesis that artificially increased speed of movement reduces the probability of the mimic being identified. First, images of 14 myrmecomorphic spider species and their models were used for humans to rank their mimetic accuracy. Humans were used as surrogate predators to obtain scores for each mimetic pair. In the second experiment, the effect of movement playback speed on the probability of identification was investigated, again using humans. Videos of mimics were played at different speeds, and the identification probability was recorded. While ants were correctly identified at any playback speed, the identification of myrmecomorphic spiders declined with increasing playback speed. In other words, the latency to correct identification increased with playback speed. Overall, mimics with higher accuracy scores were more difficult to identify while moving. The natural speed of movement of accurate mimics was similar to that of inaccurate ones. Movement is thus an important trait for myrmecomorphic species.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10614 - Behavioral sciences biology
Návaznosti výsledku
Projekt
<a href="/cs/project/GA19-09323S" target="_blank" >GA19-09323S: Mimetické komplexy a evoluce nepřesných mimetiků</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Animal Cognition
ISSN
1435-9448
e-ISSN
—
Svazek periodika
24
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
11
Strana od-do
1247-1257
Kód UT WoS článku
000646538100001
EID výsledku v databázi Scopus
2-s2.0-85105411280