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@article{1694616,
author = {Gajski, Domagoj and Petráková, Lenka and Pekár, Stanislav},
article_location = {Hoboken},
article_number = {3},
doi = {http://dx.doi.org/10.1111/jzo.12778},
keywords = {natural diet; Araneae; stenophagous predator; molecular gut content analysis; ontogenetic shift; Zodarion rubidum; trophic shift},
language = {eng},
issn = {0952-8369},
journal = {Journal of Zoology},
title = {Ant-eating spider maintains specialist diet throughout its ontogeny},
url = {https://doi.org/10.1111/jzo.12778},
volume = {311},
year = {2020}
}
TY - JOUR
ID - 1694616
AU - Gajski, Domagoj - Petráková, Lenka - Pekár, Stanislav
PY - 2020
TI - Ant-eating spider maintains specialist diet throughout its ontogeny
JF - Journal of Zoology
VL - 311
IS - 3
SP - 155-163
EP - 155-163
PB - Wiley
SN - 09528369
KW - natural diet
KW - Araneae
KW - stenophagous predator
KW - molecular gut content analysis
KW - ontogenetic shift
KW - Zodarion rubidum
KW - trophic shift
UR - https://doi.org/10.1111/jzo.12778
L2 - https://doi.org/10.1111/jzo.12778
N2 - 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.
ER -
GAJSKI, Domagoj, Lenka PETRÁKOVÁ a Stanislav PEKÁR. Ant-eating spider maintains specialist diet throughout its ontogeny. \textit{Journal of Zoology}. Hoboken: Wiley, 2020, roč.~311, č.~3, s.~155-163. ISSN~0952-8369. Dostupné z: https://dx.doi.org/10.1111/jzo.12778.
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