Mating before host colonization: a common trait in outbreeding Scolytinae, potentially linked to invasiveness

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020702%3A_____%2F25%3AN0000081" target="_blank" >RIV/00020702:_____/25:N0000081 - isvavai.cz</a>

Result on the web

<a href="https://www.schweizerbart.de/papers/entomologia/detail/45/106675/Mating_before_host_colonization_a_common_trait_in_?af=crossref" target="_blank" >https://www.schweizerbart.de/papers/entomologia/detail/45/106675/Mating_before_host_colonization_a_common_trait_in_?af=crossref</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Mating before host colonization: a common trait in outbreeding Scolytinae, potentially linked to invasiveness

Original language description

Little is known about the influence of mating strategies that could potentially facilitate the colonization of new hosts in outbreeding species of the weevil subfamily Scolytinae. Individuals typically emerge from their host tree, disperse, and then mate with unrelated conspecifics in a new host where the females establish maternal galleries. Yet, in several spe-cies commonly classified as outbreeding, females have been found already mated before host colonization. Precolonization mating provides female with a sperm supply before they find a new host and allows them to establish a maternal gallery on their own. We compared the proportion of females mated before host colonization across 18 European and four American outbreeding Scolytinae species using a phylogenetically controlled analysis. To this end, we determined whether females caught in the spring had sperm in their spermathecae. We found that a proportion of females (range: 16-100%) mated before host colonization in all 22 species. Moreover, this trait was biased, although not significantly, toward invasiveness. Species known to have established outside their native range (Scolytinae with an Invasion History-SIH) displayed a higher proportion of females mated before host colonization than did species restricted to their native range (non-SIH). In Hylurgus ligniperda (Fabricius), a Palearctic species currently present across the globe, the proportions of females mated before host colonization reach 90% in the species' native range and up to 99% in its nonnative range (Argentina and New Zealand). Overall, these results show that precolonization mating is widespread among the Scolytinae. This trait could enhance the invasive capacities of outbreeding species by allowing females to establish a maternal gallery independently of any male during colonization, thus facilitating the establishment and spread of species introduced in new geographical areas.

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

40102 - Forestry

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Entomologia Generalis

ISSN

0171-8177

e-ISSN

2363-7102

Volume of the periodical

45

Issue of the periodical within the volume

2

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

391-399

UT code for WoS article

001475522500001

EID of the result in the Scopus database

2-s2.0-105007806127