Adaptive change in protective coloration in adult striated shieldbugs Graphosoma lineatum (Heteroptera: Pentatomidae): test of detectability of two colour forms by avian predators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10081861" target="_blank" >RIV/00216208:11310/10:10081861 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Adaptive change in protective coloration in adult striated shieldbugs Graphosoma lineatum (Heteroptera: Pentatomidae): test of detectability of two colour forms by avian predators

Popis výsledku v původním jazyce

Aposematic and cryptic protective coloration occurs in many insects, and some species may change their defensive strategy between or within the same instar. We have studied antipredatory function of colour change in striated shieldbug, Graphosoma lineatum living in Sweden. The late summer adults of a new generation are pale brown and black and change their coloration to a red and black during hibernation. We tested the effect of coloration in adult G. lineatum on their detectability for avian predators.Adult, potentially experienced great tits (Parus major) were trained to eat sunflower seeds hidden inside emptied exoskeleton of either pale brown or red G. lineatum. Then the detection time for both colour forms was measured in a dry vegetation environment. The birds needed more time to find the pale form of G. lineatum than its red form. The pale form of G. lineatum appears more cryptic on withered late summer vegetation than the red form, not only to the human eye but also to avian p

Název v anglickém jazyce

Adaptive change in protective coloration in adult striated shieldbugs Graphosoma lineatum (Heteroptera: Pentatomidae): test of detectability of two colour forms by avian predators

Popis výsledku anglicky

Aposematic and cryptic protective coloration occurs in many insects, and some species may change their defensive strategy between or within the same instar. We have studied antipredatory function of colour change in striated shieldbug, Graphosoma lineatum living in Sweden. The late summer adults of a new generation are pale brown and black and change their coloration to a red and black during hibernation. We tested the effect of coloration in adult G. lineatum on their detectability for avian predators.Adult, potentially experienced great tits (Parus major) were trained to eat sunflower seeds hidden inside emptied exoskeleton of either pale brown or red G. lineatum. Then the detection time for both colour forms was measured in a dry vegetation environment. The birds needed more time to find the pale form of G. lineatum than its red form. The pale form of G. lineatum appears more cryptic on withered late summer vegetation than the red form, not only to the human eye but also to avian p

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA206%2F07%2F0507" target="_blank" >GA206/07/0507: Reakce ptačích predátorů na multimodální obranné mechanismy ploštic: experimentální přístup</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ecological Entomology

ISSN

0307-6946

e-ISSN

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Svazek periodika

35

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000281641900008

EID výsledku v databázi Scopus

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