Ant-eating spider maintains specialist diet throughout its ontogeny

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F20%3A00116957" target="_blank" >RIV/00216224:14310/20:00116957 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1111/jzo.12778" target="_blank" >https://doi.org/10.1111/jzo.12778</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jzo.12778" target="_blank" >10.1111/jzo.12778</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ant-eating spider maintains specialist diet throughout its ontogeny

Popis výsledku v původním jazyce

Predators should be selected to maximize their fitness by catching the most profitable prey. As predators grow in size, they often shift their preferences to larger prey during the course of development. Alike generalist predators, specialized predators should also shift to larger prey within the pool of focal prey. Here, we have studied the natural diet of a specialized ant-eating spider Zodarion rubidum by means of molecular methods. We tested the hypothesis of a trophic shift during postembryonic ontogenesis and if there is a difference in the diet between sexes due to sexual dimorphism. In addition, a feeding trial was performed to estimate the time at which prey DNA can be detected. The diet of all stages consisted solely of ants (nine genera), thus confirming their strict ant specialization. There was no shift in prey size or prey type during ontogenetic development, but the diversity of prey declined with age. In adult males, very few prey were detected. The feeding trial showed that prey DNA can be detected inside the spider's gut up to 2 weeks after feeding.

Název v anglickém jazyce

Ant-eating spider maintains specialist diet throughout its ontogeny

Popis výsledku anglicky

Predators should be selected to maximize their fitness by catching the most profitable prey. As predators grow in size, they often shift their preferences to larger prey during the course of development. Alike generalist predators, specialized predators should also shift to larger prey within the pool of focal prey. Here, we have studied the natural diet of a specialized ant-eating spider Zodarion rubidum by means of molecular methods. We tested the hypothesis of a trophic shift during postembryonic ontogenesis and if there is a difference in the diet between sexes due to sexual dimorphism. In addition, a feeding trial was performed to estimate the time at which prey DNA can be detected. The diet of all stages consisted solely of ants (nine genera), thus confirming their strict ant specialization. There was no shift in prey size or prey type during ontogenetic development, but the diversity of prey declined with age. In adult males, very few prey were detected. The feeding trial showed that prey DNA can be detected inside the spider's gut up to 2 weeks after feeding.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Zoology

ISSN

0952-8369

e-ISSN

1469-7998

Svazek periodika

311

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

155-163

Kód UT WoS článku

000521816700001

EID výsledku v databázi Scopus

2-s2.0-85082412259