Disappearance of eggs from nonparasitized nests of brood parasite hosts: The evolutionary equilibrium hypothesis revisited

Bård G. Stokke, Eivin Røskaft, Arne Moksnes, Anders Pape Møller, Anton Antonov, Frode Fossøy, Wei Liang, Germán López-Iborra, C. Moskát, Jacqui A. Shykoff, Manuel Soler, Johan R. Vikan, Canchao Yang, Fugo Takasu

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The evolutionary equilibrium hypothesis was proposed to explain variation in egg rejection rates among individual hosts (intra- and interspecific) of avian brood parasites. Hosts may sometimes mistakenly reject own eggs when they are not parasitized (i.e. make recognition errors). Such errors would incur fitness costs and could counter the evolution of host defences driven by costs of parasitism (i.e. creating equilibrium between acceptors and rejecters within particular host populations). In the present study, we report the disappearance of host eggs from nonparasitized nests in populations of seven actual and potential hosts of the common cuckoo Cuculus canorus. Based on these data, we calculate the magnitude of the balancing parasitism rate provided that all eggs lost are a result of recognition errors. Importantly, because eggs are known to disappear from nests for reasons other than erroneous host rejection, our data represent the maximum estimates of such costs. Nonetheless, the disappearance of eggs was a rare event and therefore incurred low costs compared to the high costs of parasitism. Hence, costs as a result of recognition errors are probably of minor importance with respect to opposing selective pressure for the evolution of egg rejection in these hosts. We cannot exclude the possibility that low or intermediate egg rejection rates in some host populations may be caused by spatiotemporal variation in the occurrence of parasitism and gene flow, creating a variable influence of opposing costs as a result of recognition errors and the costs of parasitism.

Original languageEnglish
JournalBiological Journal of the Linnean Society
DOIs
Publication statusAccepted/In press - 2015

Fingerprint

nest
parasite
nests
egg
parasites
parasitism
egg rejection
cost
Cuculus canorus
gene flow
fitness
rate

Keywords

  • Co-evolution
  • Cuckoo
  • Fitness cost
  • Host defence
  • Host-parasite interactions

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Disappearance of eggs from nonparasitized nests of brood parasite hosts : The evolutionary equilibrium hypothesis revisited. / Stokke, Bård G.; Røskaft, Eivin; Moksnes, Arne; Møller, Anders Pape; Antonov, Anton; Fossøy, Frode; Liang, Wei; López-Iborra, Germán; Moskát, C.; Shykoff, Jacqui A.; Soler, Manuel; Vikan, Johan R.; Yang, Canchao; Takasu, Fugo.

In: Biological Journal of the Linnean Society, 2015.

Research output: Contribution to journalArticle

Stokke, BG, Røskaft, E, Moksnes, A, Møller, AP, Antonov, A, Fossøy, F, Liang, W, López-Iborra, G, Moskát, C, Shykoff, JA, Soler, M, Vikan, JR, Yang, C & Takasu, F 2015, 'Disappearance of eggs from nonparasitized nests of brood parasite hosts: The evolutionary equilibrium hypothesis revisited', Biological Journal of the Linnean Society. https://doi.org/10.1111/bij.12733
Stokke, Bård G. ; Røskaft, Eivin ; Moksnes, Arne ; Møller, Anders Pape ; Antonov, Anton ; Fossøy, Frode ; Liang, Wei ; López-Iborra, Germán ; Moskát, C. ; Shykoff, Jacqui A. ; Soler, Manuel ; Vikan, Johan R. ; Yang, Canchao ; Takasu, Fugo. / Disappearance of eggs from nonparasitized nests of brood parasite hosts : The evolutionary equilibrium hypothesis revisited. In: Biological Journal of the Linnean Society. 2015.
@article{e1b932f75c3c4a2c9f0f4f96fbc8372d,
title = "Disappearance of eggs from nonparasitized nests of brood parasite hosts: The evolutionary equilibrium hypothesis revisited",
abstract = "The evolutionary equilibrium hypothesis was proposed to explain variation in egg rejection rates among individual hosts (intra- and interspecific) of avian brood parasites. Hosts may sometimes mistakenly reject own eggs when they are not parasitized (i.e. make recognition errors). Such errors would incur fitness costs and could counter the evolution of host defences driven by costs of parasitism (i.e. creating equilibrium between acceptors and rejecters within particular host populations). In the present study, we report the disappearance of host eggs from nonparasitized nests in populations of seven actual and potential hosts of the common cuckoo Cuculus canorus. Based on these data, we calculate the magnitude of the balancing parasitism rate provided that all eggs lost are a result of recognition errors. Importantly, because eggs are known to disappear from nests for reasons other than erroneous host rejection, our data represent the maximum estimates of such costs. Nonetheless, the disappearance of eggs was a rare event and therefore incurred low costs compared to the high costs of parasitism. Hence, costs as a result of recognition errors are probably of minor importance with respect to opposing selective pressure for the evolution of egg rejection in these hosts. We cannot exclude the possibility that low or intermediate egg rejection rates in some host populations may be caused by spatiotemporal variation in the occurrence of parasitism and gene flow, creating a variable influence of opposing costs as a result of recognition errors and the costs of parasitism.",
keywords = "Co-evolution, Cuckoo, Fitness cost, Host defence, Host-parasite interactions",
author = "Stokke, {B{\aa}rd G.} and Eivin R{\o}skaft and Arne Moksnes and M{\o}ller, {Anders Pape} and Anton Antonov and Frode Foss{\o}y and Wei Liang and Germ{\'a}n L{\'o}pez-Iborra and C. Mosk{\'a}t and Shykoff, {Jacqui A.} and Manuel Soler and Vikan, {Johan R.} and Canchao Yang and Fugo Takasu",
year = "2015",
doi = "10.1111/bij.12733",
language = "English",
journal = "Biological Journal of the Linnean Society",
issn = "0024-4066",
publisher = "Wiley-Blackwell",

}

TY - JOUR

T1 - Disappearance of eggs from nonparasitized nests of brood parasite hosts

T2 - The evolutionary equilibrium hypothesis revisited

AU - Stokke, Bård G.

AU - Røskaft, Eivin

AU - Moksnes, Arne

AU - Møller, Anders Pape

AU - Antonov, Anton

AU - Fossøy, Frode

AU - Liang, Wei

AU - López-Iborra, Germán

AU - Moskát, C.

AU - Shykoff, Jacqui A.

AU - Soler, Manuel

AU - Vikan, Johan R.

AU - Yang, Canchao

AU - Takasu, Fugo

PY - 2015

Y1 - 2015

N2 - The evolutionary equilibrium hypothesis was proposed to explain variation in egg rejection rates among individual hosts (intra- and interspecific) of avian brood parasites. Hosts may sometimes mistakenly reject own eggs when they are not parasitized (i.e. make recognition errors). Such errors would incur fitness costs and could counter the evolution of host defences driven by costs of parasitism (i.e. creating equilibrium between acceptors and rejecters within particular host populations). In the present study, we report the disappearance of host eggs from nonparasitized nests in populations of seven actual and potential hosts of the common cuckoo Cuculus canorus. Based on these data, we calculate the magnitude of the balancing parasitism rate provided that all eggs lost are a result of recognition errors. Importantly, because eggs are known to disappear from nests for reasons other than erroneous host rejection, our data represent the maximum estimates of such costs. Nonetheless, the disappearance of eggs was a rare event and therefore incurred low costs compared to the high costs of parasitism. Hence, costs as a result of recognition errors are probably of minor importance with respect to opposing selective pressure for the evolution of egg rejection in these hosts. We cannot exclude the possibility that low or intermediate egg rejection rates in some host populations may be caused by spatiotemporal variation in the occurrence of parasitism and gene flow, creating a variable influence of opposing costs as a result of recognition errors and the costs of parasitism.

AB - The evolutionary equilibrium hypothesis was proposed to explain variation in egg rejection rates among individual hosts (intra- and interspecific) of avian brood parasites. Hosts may sometimes mistakenly reject own eggs when they are not parasitized (i.e. make recognition errors). Such errors would incur fitness costs and could counter the evolution of host defences driven by costs of parasitism (i.e. creating equilibrium between acceptors and rejecters within particular host populations). In the present study, we report the disappearance of host eggs from nonparasitized nests in populations of seven actual and potential hosts of the common cuckoo Cuculus canorus. Based on these data, we calculate the magnitude of the balancing parasitism rate provided that all eggs lost are a result of recognition errors. Importantly, because eggs are known to disappear from nests for reasons other than erroneous host rejection, our data represent the maximum estimates of such costs. Nonetheless, the disappearance of eggs was a rare event and therefore incurred low costs compared to the high costs of parasitism. Hence, costs as a result of recognition errors are probably of minor importance with respect to opposing selective pressure for the evolution of egg rejection in these hosts. We cannot exclude the possibility that low or intermediate egg rejection rates in some host populations may be caused by spatiotemporal variation in the occurrence of parasitism and gene flow, creating a variable influence of opposing costs as a result of recognition errors and the costs of parasitism.

KW - Co-evolution

KW - Cuckoo

KW - Fitness cost

KW - Host defence

KW - Host-parasite interactions

UR - http://www.scopus.com/inward/record.url?scp=84952064124&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84952064124&partnerID=8YFLogxK

U2 - 10.1111/bij.12733

DO - 10.1111/bij.12733

M3 - Article

AN - SCOPUS:84952064124

JO - Biological Journal of the Linnean Society

JF - Biological Journal of the Linnean Society

SN - 0024-4066

ER -