Evidence for Interspecific Brood Parasite Detection and Removal in Burying Beetles

Keywords

burying beetles, brood parasites, larvae

Abstract

We tested whether brood parasitism could be successful between two co-occurring species of burying beetles, Nicrophorus guttula and Nicrophorus marginatus, and whether these species exhibit an adaptive response to brood parasitism by detecting and removing parasites. We cross-fostered larvae between broods of the two species and created mixed-species broods to simulate the addition of brood parasites. Brood parasites survived in both species’ broods. Nicrophorus marginatus culled 86% of brood parasites compared to 56% of their own larvae, and N. guttula culled 50% of brood parasites compared to 22% of their own larvae. Additionally, N. guttula brood parasites were significantly smaller than N. guttula that were raised by N. guttula parents, but N. marginatus brood parasites were significantly larger than N. marginatus that were raised by N. marginatus parents. This paper provides the first evidence that burying beetles can discriminate between their own larvae and other species’ larvae. We suggest that brood parasitism may be the selective force responsible for this ability.

Original Publication Citation

Smith AN, MC Belk. 2018. Evidence for interspecific brood parasitism detection and removal in burying beetles. Psyche 2018.

Document Type

Peer-Reviewed Article

Publication Date

2018-03-05

Permanent URL

http://hdl.lib.byu.edu/1877/8153

Publisher

Psyche: A Journal of Entomology

Language

English

College

Life Sciences

Department

Biology

University Standing at Time of Publication

Full Professor

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