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Dwelling Snapping Shrimp; Belize Barrier-Reef; Synalpheus-Regalis; Host-Specificity; Mole-Rats; Eusociality; Selection; Constraints; Alpheidae; Altruism
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Full-Text Articles in Life Sciences
Kin Structure, Ecology And The Evolution Of Social Organization In Shrimp: A Comparative Analysis, Je Duffy, Ks Macdonald
Kin Structure, Ecology And The Evolution Of Social Organization In Shrimp: A Comparative Analysis, Je Duffy, Ks Macdonald
VIMS Articles
Eusocial societies present a Darwinian paradox, yet they have evolved independently in insects, mole-rats and symbiotic shrimp. Historically, eusociality has been thought to arise as a response to ecological challenges, mediated by kin selection, but the role of kin selection has recently been questioned. Here we use phylogenetically independent contrasts to test the association of eusociality with ecological performance and genetic structure (via life history) among 20 species of sponge-dwelling shrimp (Synalpheus) in Belize. Consistent with hypotheses that cooperative groups enjoy an advantage in challenging habitats, we show that eusocial species are more abundant, occupy more sponges and have broader …