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Cited by 31Animal Behavior and ReproductionInsect symbiosis and bacterial influencesInsect and Arachnid Ecology and Behavior

The DOI matches its Crossref record; 27 of the 28 references it cites were found in a registry or an index.

Operational sex ratio in terrestrial isopods: interaction between potential rate of reproduction and Wolbachia ‐induced sex ratio distortion

Open access
Moreau, Jérôme, Rigaud, Thierry·2000·Oikos
DOI 10.1034/j.1600-0706.2000.910308.x
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Abstract

Selfish genetic elements distorting sex ratio are known in several arthropods. By inducing a deficit of males, these sex ratio distorters may modify sexual selection by reversing the sex that competes for a mate. They also have potential to reduce the male proportion to values limiting mating possibilities and therefore limiting population size. Wolbachia endosymbionts are intracytoplasmic, vertically transmitted bacteria that convert genotypic males of terrestrial isopods (woodlice) into functional females. We have tested the impact of these feminizing symbionts on the operational sex ratio (OSR) in three woodlice species. Preliminary experiments consisted in estimating the potential rate of reproduction in males and females, and measuring the dynamics of the onset of reproduction in the wild. These parameters were then combined with population sex ratio to discriminate key factors influencing the OSR. The results suggest that the high potential rate of reproduction of males and the asynchrony in female receptivity both counterbalance female‐biased sex ratios. The result is an overall balanced or slightly female‐biased OSR. Male deficit can therefore not be considered as a factor strongly limiting reproduction in woodlice. Some females were nevertheless found not mated in the wild at the beginning of the reproductive season, most of them being infected by Wolbachia . This suggests that uninfected females may have an advantage as the first mate. Consequences of these findings on woodlice population dynamics are discussed.

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Metadata

Authors
Moreau, J., & Rigaud, T.
Affiliations
Centre National de la Recherche Scientifique (FR)
ORCID
Venue
Oikos
Publisher
Wiley
Published
2000-12
Volume
91
Issue
3
Pages
477-484
ISSN
  • 0030-1299 (ISSN-L)
  • 1600-0706
DOI
10.1034/j.1600-0706.2000.910308.x
OpenAlex
W2167005203
Cited by
28
References
28
Citations by year
2024: 1 · 2022: 1 · 2021: 1 · 2019: 2 · 2018: 2 · 2017: 4 · 2016: 2 · 2013: 2
FWCI
3.12
Type
journal article
Language
en
Open access
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor, 865 d)
Locations
Oikos (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Animal Behavior and Reproduction
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect symbiosis and bacterial influences
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect and Arachnid Ecology and Behavior
Keywords
operational sex ratio, Wolbachia, sex ratio distortion, terrestrial isopods, feminization, selfish genetic elements, female receptivity, mating competition, population dynamics, sexual selection

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