10.5061/DRYAD.KJ83851
Messina, Frank J.
Utah State University
Lish, Alexandra M.
Utah State University
Gompert, Zachariah
Utah State University
Data from: Variable responses to novel hosts by populations of the seed
beetle Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae)
Dryad
dataset
2019
Chrysomelidae
Ecology & Behavior
Plant Insects
Bruchidae
Stored Products
2019-07-03T00:00:00Z
2019-07-03T00:00:00Z
en
https://doi.org/10.1093/ee/nvy108
21005 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Cosmopolitan pests can consist of geographic populations that differ in
their current host ranges or in their ability to colonize a novel host. We
compared the responses of cowpea-adapted seed-beetle populations
(Callosobruchus maculatus [F.]) from Africa, North America, and South
America to four novel legumes: chickpea, lentil, mung bean, and pea. We
also qualitatively compared these results to those obtained earlier for an
Asian population. For each host, we measured larval survival to adult
emergence, and used both no-choice and choice tests to estimate host
acceptance. The pattern of larval survival was similar among populations:
high or moderately high survival on cowpea, mung bean, and chickpea,
intermediate survival on pea, and very low survival on lentil. One
exception was unusually high survival of African larvae on pea, and there
was modest variation among populations for survival on lentil. The African
population was also an outlier with respect to host acceptance; under
no-choice conditions, African females showed a much greater propensity to
accept the two least preferred hosts, chickpea and lentil. However,
greater acceptance of these hosts by African females was not evident in
choice tests. Inferences about populations differences in host acceptance
can thus strongly depend on experimental protocol. Future selection
experiments can be used to determine whether the observed population
differences in initial performance will affect the probability of
producing self-sustaining populations on a marginal crop host.
Survival dataText (csv) file with the data from the survival experiment.
The count of beetles that survived (Y) and died (N) for each population
and host plant is given.survival_five_hosts.csvNo-choice host preference
dataText (csv) file with the data from the no-choice host preference
experiment. Each row denotes a single individual and gives the number of
eggs laid on the host (as well as the number laid on the Petri
dish).ThreePopsFiveHosts.csvChoice test host preference dataText (csv)
file with the results from the choice host preference experiment. There is
one row per female beetle. The number of eggs laid on the single cowpea
(EGGSON1CP) and on the 10 seeds from the less preferred host
(EGGSOTHER10), that is lentil (CPVSLE) or pea (CPVSKP) is given, along
with the number of eggs laid on the Petri dish.choice1v10.csvR scriptsThis
compressed directory contains the R code for the main analyses in the
paper. There is one file each for the survival data (Survival.R), the
no-choice host preference data (LifeTimeFecundity.R), and the choice host
preference data (Choice1v10.R). These scripts require rjags, JAGS, and the
jags model blocks (which is part of this Dryad
submission).Scripts.tar.gzJAGS model blocksThis compressed directory
contains that JAGS model blocks that are needed by the R analysis
scripts.JagsMods.tar.gz