Strong constraints to independent nesting in a facultatively social bee: quantifying the effects of enemies-at-the-nest

dc.contributor.authorZammit, J.
dc.contributor.authorHogendoorn, K.
dc.contributor.authorSchwarz, M.
dc.date.issued2008
dc.description.abstractConstraints to independent nesting play a key role in the understanding of social evolution in insects, but the source and the magnitude of such constraints are poorly known for many key taxa. In allodapine bees it is known that solitary nesting females have low rates of successful brood rearing and that this drives selection for cooperative nesting. It has been hypothesized that these constraints are due to the presence of enemies-at-the-nest, such as ants, but no direct link has been demonstrated between such enemies and colony failure. We set up an experiment in which solitary founded nests of an Australian allodapine bee, Exoneura nigrescens, were either protected from non-flying predators or left unprotected, and compared the resulting colony survival and brood production rates. We found that protected colonies have much higher rates of survival and that the constraints to independent nesting are extreme, with a mean of less than one offspring per nest at the end of the brood rearing period. This means that cooperative nesting is essential for this species to persist in its habitat. © 2007 Birkhaeuser.
dc.description.statementofresponsibilityJ. Zammit, K. Hogendoorn and M.P. Schwarz
dc.identifier.citationInsectes Sociaux, 2008; 55(1):74-78
dc.identifier.doi10.1007/s00040-007-0972-3
dc.identifier.issn0020-1812
dc.identifier.issn1420-9098
dc.identifier.orcidHogendoorn, K. [0000-0002-4942-8062]
dc.identifier.urihttp://hdl.handle.net/2440/52490
dc.language.isoen
dc.publisherBirkhauser Verlag Ag
dc.source.urihttps://doi.org/10.1007/s00040-007-0972-3
dc.subjectEcological constraints
dc.subjectsocial evolution
dc.subjectAllodapini
dc.subjectreproductive skew
dc.subjectants.
dc.titleStrong constraints to independent nesting in a facultatively social bee: quantifying the effects of enemies-at-the-nest
dc.typeJournal article
pubs.publication-statusPublished

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