Estimating predation pressure in ecological studies: controlling bias imposed by using sentinel plasticine prey

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00564168" target="_blank" >RIV/60077344:_____/23:00564168 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/23:43906446

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/10.1111/eea.13249" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/eea.13249</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/eea.13249" target="_blank" >10.1111/eea.13249</a>

Result language

angličtina

Original language name

Estimating predation pressure in ecological studies: controlling bias imposed by using sentinel plasticine prey

Original language description

Sentinel plasticine prey has been increasingly used to estimate predation pressure. The use of plasticine prey may, however, bias the results, as this method was originally designed to account for predation by organisms that can visually recognize the shapes and colors of their prey. To evaluate the limitations of using sentinel plasticine prey, we compared predator attack rates between real prey dead and live mealworms, Tenebrio molitor L. (Coleoptera: Tenebrionidae) and plasticine models in a monsoonal tropical rainforest of southeastern China. The attack rates by invertebrates were highest on dead prey followed by live prey and plasticine models, whereas the attack rates by vertebrates were lowest on dead prey, and did not differ between live prey and plasticine models. These results confirm that bias imposed by using the plasticine models is affected by the type of predators. In addition, we tested the validity and generality of the premise that predators can distinguish the shapes of plasticine model prey and preferentially attack a caterpillar-like shape over other shapes. To test this hypothesis, we conducted three independent experiments in China, Papua New Guinea, and Finland. In the two latter localities, predation rates on plasticine caterpillars were higher than on models of other shapes, whereas in China, these differences were not significant. Taken together, our study suggests that plasticine models may underestimate the predation by invertebrates to a greater extent than predation by vertebrates, and the preference of model shape by predators may be locality-specific, presumably due to differences in the composition of the predator community. We propose that predation be estimated on both live and plasticine prey in future studies to measure the potential bias imposed by using plasticine models and its variation among various habitats and predator groups.

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

10618 - Ecology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Entomologia Experimentalis et Applicata

ISSN

0013-8703

e-ISSN

1570-7458

Volume of the periodical

171

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

56-67

UT code for WoS article

000876540000001

EID of the result in the Scopus database

2-s2.0-85141411141