10.5061/DRYAD.4QR34
Lawson-Handley, Lori J
University of Hull
Elnagdy, Sherif
University of Cambridge
Majerus, Michael E N
Data from: The value of an egg: resource reallocation in ladybirds
(Coleoptera: Coccinellidae) infected with male-killing bacteria
Dryad
dataset
2011
Coccinella unidecempunctata
Coccinella septempunctata
Propylea japonica
Eocaria muiri
Harmonia quadripunctata
Adalia bipunctata
Adalia decempunctata
Hippodamia variegata
Host-parasite interaction
Sex-ratio
Coccinula crotchi
Harmonia axyridis
Chilomenes sexmaculatus
Coleoptera: Coccinellidae
Coccinula sinensis
2011-07-06T18:11:10Z
2011-07-06T18:11:10Z
en
https://doi.org/10.1111/j.1420-9101.2011.02346.x
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Male-killing bacteria (MKs) are thought to persist in host populations by
vertical transmission, and conferring direct and/or indirect fitness
benefits to their hosts. Here, we test the role of indirect fitness
benefits accrued from resource reallocation in species that engage in
sibling egg cannibalism. We found that a single-egg meal significantly
increased larval survival in 12 ladybird species, but the value of an egg
(to survival) differed substantially between species. Next we tested the
impact of three MKs on larval survival in one ladybird species, Adalia
bipunctata. Spiroplasma reduced larval survival, whereas Wolbachia and
Rickettsia had no effect. However, Spiroplasma-infected larvae showed the
greatest response to a single-egg meal. The indirect fitness benefit
obtained from a single egg is thus so large, that even MKs with direct
fitness costs can persist in host populations. This study supports the
hypothesis that fitness compensation via resource reallocation can explain
MK persistence.
Elnagdy et al 2011 dataSurvival data for three experiments to investigate
resource reallocation in coccinellids (Coleoptera: Coccinellidae) infected
with male-killing bacteria