Widespread experimental evidence of Allee effects in insects: a meta-analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F24%3AN0000017" target="_blank" >RIV/60460709:41320/24:N0000017 - isvavai.cz</a>

Result on the web

<a href="https://www.fs.usda.gov/nrs/pubs/jrnl/2024/nrs_2024_branco_001.pdf" target="_blank" >https://www.fs.usda.gov/nrs/pubs/jrnl/2024/nrs_2024_branco_001.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1127/entomologia/2024/2377" target="_blank" >10.1127/entomologia/2024/2377</a>

Result language

angličtina

Original language name

Widespread experimental evidence of Allee effects in insects: a meta-analysis

Original language description

During the last two decades there has been growing recognition of the importance of Allee effects in population dynamics and applied ecology. The Allee effect, that is decreased fitness at lower population densities, has been recognized as potentially playing an important role in the conservation of endangered species, in the practice of biological control, and the eradication of invasive species. Although a number of theoretical studies have been devoted to the role of Allee effects in the population dynamics of insects and other terrestrial arthropods, experimental evidence documenting Allee effects is still scarce. Here, we reviewed the literature reporting on density-dependent relationships in low-density populations and conducted a meta-analysis of 191 case studies to identify the occurrence of Allee effects and associated species traits. Allee effects are not rare in terrestrial arthropods, as they were reported in 47% of the cases we reviewed, comprising 46 out of 68 species. Ample examples exist for both demographic Allee effects (28 out of 74 cases cases), and component Allee effects (61 out of 117 cases). Insufficient mating success, cooperative feeding, and enemy escape were the three main mechanisms associated with Allee effects in terrestrial arthropods. Insufficient reproductive success was the mechanism with the highest proportion of related Allee effects (71%). Voltinism and host specialization were common species traits behind demographic Allee effects. Host specialists with univoltine life cycles tended to have stronger Allee effects. The high frequency of Allee effects in terrestrial arthropods reported here and the identified mechanisms behind them have important implications for the selection of management strategies.

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

10600 - Biological sciences

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

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

Name of the periodical

Entomologica Generalis

ISSN

0171-8177

e-ISSN

—

Volume of the periodical

44

Issue of the periodical within the volume

4

Country of publishing house

DE - GERMANY

Number of pages

14

Pages from-to

765-778

UT code for WoS article

001286673800001

EID of the result in the Scopus database

2-s2.0-85210098795