ArticleBiology letters2019
A split sex ratio in solitary and social nests of a facultatively social bee.
Article in Biology letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 12 citations in OpenAlex.
- The presence of a guard vicariously drives split sex ratios in a facultatively social bee.Biology letters · 2023Article
- Male survivorship and the evolution of eusociality in partially bivoltine sweat bees.PloS one · 2022Article
- Age-related mushroom body expansion in male sweat bees and bumble bees.Scientific reports · 2021Article
- Loss of developmental diapause as prerequisite for social evolution in bees.Biology letters · 2019Article
- A split sex ratio in solitary and social nests of a facultatively social bee.Biology letters · 2019Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
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Abstract
A classic prediction of kin selection theory is that a mixed population of social and solitary nests of haplodiploid insects should exhibit a split sex ratio among offspring: female biased in social nests, male biased in solitary nests. Here, we provide the first evidence of a solitary-social split sex ratio, using the sweat bee Megalopta genalis (Halictidae). Data from 2502 offspring collected from naturally occurring nests across 6 years spanning the range of the M. genalis reproductive season show that despite significant yearly and seasonal variation, the offspring sex ratio of social nests is consistently more female biased than in solitary nests. This suggests that split sex ratios may facilitate the evolutionary origins of cooperation based on reproductive altruism via kin selection.
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