How variation in prey aposematic signals affects avoidance learning, generalization and memory of a salticid spider

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10368398" target="_blank" >RIV/00216208:11310/17:10368398 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/17:00100361

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0003347217301872" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0003347217301872</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.anbehav.2017.06.012" target="_blank" >10.1016/j.anbehav.2017.06.012</a>

Result language

angličtina

Original language name

How variation in prey aposematic signals affects avoidance learning, generalization and memory of a salticid spider

Original language description

Most studies of aposematism focus on the effect of warning signals on vertebrate predators, especially birds. In our experiments, we used jumping spiders, Evarcha arcuata (Araneae: Salticidae) as predators, and larvae of three colour forms (red, white, yellow) of an unpalatable firebug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) as prey. The experiments were divided into four successive steps, focusing on different aspects of predatoreprey interaction. (1) When presented with a firebug for the first time, the spiders captured the white, least conspicuous colour form more often than the other two. No differences in the attack latencies were observed between the colour forms. (2) In the avoidance-learning test, the spiders were offered in succession five firebugs of one of the three colour forms. The attack and capture rate decreased in all colour forms, more notably in the red, most conspicuous form. (3) After five presentations of the same prey, the spiders were presented with a different firebug colour form. The results of the generalization process were asymmetric: spiders&apos; attack rate increased when the red prey was followed by the yellow or white one, but decreased when the red form was presented after the other colour forms. (4) Spiders attacked the same prey more often the next day, but the attacks were seldom fatal. Similarly to the initial reaction, spiders captured the white firebugs more often. Our results show that for E. arcuata, the red coloration can represent an effective aposematic signal. Red prey coloration decreased the attack rate during the avoidance-learning process and favoured the prey in generalization between different colour forms. Yellow coloration was moderately effective against E. arcuata, whereas white coloration was the least effective because of low innate bias against this signal. (C) 2017 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Name of the periodical

Animal Behaviour

ISSN

0003-3472

e-ISSN

—

Volume of the periodical

130

Issue of the periodical within the volume

AUGUST

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

107-117

UT code for WoS article

000406939400012

EID of the result in the Scopus database

2-s2.0-85022338471