Predicting sex bias in mobility from functional traits in flying insects
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F25%3A106326" target="_blank" >RIV/60460709:41330/25:106326 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1111/oik.11140" target="_blank" >https://doi.org/10.1111/oik.11140</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/oik.11140" target="_blank" >10.1111/oik.11140</a>
Alternative languages
Result language
angličtina
Original language name
Predicting sex bias in mobility from functional traits in flying insects
Original language description
Understanding the movement patterns of organisms is crucial for effective biodiversity conservation in the increasingly dynamic and fragmented landscapes. Since the colonization of habitat patches relies largely on females, sex differences in movement capability must also be considered. However, obtaining direct measurements of mobility and dispersal, and sex biases in these traits, is often challenging. This underscores the importance of predicting sex-specific estimates of mobility based on species' functional traits. Our phylogenetic comparative study aims at identifying species traits that could serve as proxies for sex bias in mobility in flying insects. We rely on a comprehensive dataset on the sex ratios of 454 moth species (Lepidoptera: Macroheterocera), captured by light traps of the Finnish national moth monitoring scheme. We first demonstrate that, in the vast majority of species, males outnumber females among the captured individuals. Our phylogenetic regression models reveal that species-specific sex ratios correlate with traits typically predicted to be associated with sex differences in mobility. Female proportions decrease as sexual dimorphism in wingspan becomes more male-biased and female wing loading relative to males increases. Proportions of females are also lower in larger species. Females are particularly scarce in trap samples of species in which the reproductive output of females is primarily determined by larval-derived resources (i.e. capital breeders). These associations suggest that the observed variations in sex ratios do indeed mirror the variation in sex bias in mobility across species. Our findings highlight the potential of trait-based approaches to identify meaningful indicators of insect mobility, including sex biases in movement patterns. The availability of such proxies facilitates predictions about how different species might respond to contemporary challenges, such as light pollution and habitat loss and fragmentation. The detected associations also advance ordination schemes of insect life histories by integrating mobility measures into relevant analyses.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10616 - Entomology
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Oikos
ISSN
0030-1299
e-ISSN
0030-1299
Volume of the periodical
2025
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
—
UT code for WoS article
001460860300001
EID of the result in the Scopus database
2-s2.0-105001927749