Relationship between model noxiousness and mimetic accuracy in myrmecomorphic spiders

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00119427" target="_blank" >RIV/00216224:14310/21:00119427 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s10682-021-10126-9" target="_blank" >https://doi.org/10.1007/s10682-021-10126-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10682-021-10126-9" target="_blank" >10.1007/s10682-021-10126-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Relationship between model noxiousness and mimetic accuracy in myrmecomorphic spiders

Popis výsledku v původním jazyce

Batesian mimics benefit from their phenotypic similarity to their models. An apparent paradox is the presence of many inaccurate mimics in nature. Many hypotheses have been proposed to explain their existence, including the relaxed selection hypothesis, which postulates that the level of mimetic resemblance avoided by predators is context-dependent. More specifically, predators avoid mimics of lower resemblance that imitate highly noxious models due to the high cost of mistakenly attacking such models. We tested this hypothesis using data on 93 pairs of ant-mimicking spider species and their models. We measured the mimetic resemblance in each spider to its putative model. Then, we estimated the noxiousness of ant models on the basis of their defensive arsenal (i.e. mandibles, spines, sting, and chemical defense). In support of the relaxed selection hypothesis, we found a negative correlation between model noxiousness and mimetic accuracy. The proportion of the variability in mimetic accuracy explained by model noxiousness was not high, indicating that other factors influence the evolution of mimetic accuracy. Finally, this comparative analysis provides evidence of the influence of model noxiousness on mimetic accuracy in a Batesian mimicry system.

Název v anglickém jazyce

Relationship between model noxiousness and mimetic accuracy in myrmecomorphic spiders

Popis výsledku anglicky

Batesian mimics benefit from their phenotypic similarity to their models. An apparent paradox is the presence of many inaccurate mimics in nature. Many hypotheses have been proposed to explain their existence, including the relaxed selection hypothesis, which postulates that the level of mimetic resemblance avoided by predators is context-dependent. More specifically, predators avoid mimics of lower resemblance that imitate highly noxious models due to the high cost of mistakenly attacking such models. We tested this hypothesis using data on 93 pairs of ant-mimicking spider species and their models. We measured the mimetic resemblance in each spider to its putative model. Then, we estimated the noxiousness of ant models on the basis of their defensive arsenal (i.e. mandibles, spines, sting, and chemical defense). In support of the relaxed selection hypothesis, we found a negative correlation between model noxiousness and mimetic accuracy. The proportion of the variability in mimetic accuracy explained by model noxiousness was not high, indicating that other factors influence the evolution of mimetic accuracy. Finally, this comparative analysis provides evidence of the influence of model noxiousness on mimetic accuracy in a Batesian mimicry system.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Evolutionary Ecology

ISSN

0269-7653

e-ISSN

—

Svazek periodika

35

Číslo periodika v rámci svazku

5-6

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

657-668

Kód UT WoS článku

000682486600001

EID výsledku v databázi Scopus

2-s2.0-85112605754