Abstract
Summary 1. Host plant switching by dispersing early instar lepidopterans could have implications for parasitoid performance, but this possibility has not been evaluated thoroughly. 2. The relative growth rates of Lymantria dispar parasitized by Cotesia melanoscela , and the weight of larvae at the time of parasitoid emergence, were affected most by the second larval food plant consumed. 3. The relative growth rates, pupal weights, weight of larva at the time of parasitoid emergence, and development times of L. dispar were affected significantly by the second larval food plant consumed. 4. Development time and size of Cotesia melanoscela were affected most by the second larval food plant consumed. 5. Parasitoid performance was affected most by the larval host’s relative growth rate and the final weight of the host larva at the time of parasitoid emergence. 6. Host plant switching affected the weight of L. dispar larvae at the time of parasitoid emergence, but the effect of switching per se was not a significant factor in C. melanoscela size or development. 7. Lymantria dispar larvae that fed on Populus as their second host outperformed larvae that fed ultimately on Acer. 8. Parasitoids yielded from L. dispar larvae that fed ultimately on Populus outperformed parasitoids yielded from larvae that fed ultimately on Acer . 9. Per cent mortality of L. dispar due to parasitism and percentage adult C. melanoscela emergence were highest in parasitized larvae fed Populus , poor in hosts fed Acer , and intermediate in switching larvae.
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Claims 10
Claim · model-written summary
The second food plant most affected growth rate and emergence weight of parasitized Lymantria dispar.
- Taxon
- food plantt0
- Treatment
- second larval food plant consumede0
- Interactor
- Lymantria dispar
_Female_Dos.jpg?width=60)
Lymantria dispare0herbivoret0 - Second interactor
- Cotesia melanoscela
Cotesia melanoscelae0other - Outcome
- relative growth rates of Lymantria dispar parasitized by Cotesia melanoscela , and the weight of larvae at the time of parasitoid emergencee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Female_Dos.jpg?width=500)
Verbatim
e0“The relative growth rates of Lymantria dispar parasitized by Cotesia melanoscela , and the weight of larvae at the time of parasitoid emergence, were affected most by the second larval food plant consumed.”
t0“food plant switching by a herbivore”
Claim · model-written summary
The second food plant significantly affected L. dispar growth, pupal and emergence weights, and development time.
- Taxon
- food plantt0
- Treatment
- second larval food plant consumede0
- Interactor
- L. disparLymantria dispare0herbivoret0
- Outcome
- relative growth rates, pupal weights, weight of larva at the time of parasitoid emergence, and development times of L. dispare0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relative growth rates, pupal weights, weight of larva at the time of parasitoid emergence, and development times of L. dispar were affected significantly by the second larval food plant consumed.”
t0“food plant switching by a herbivore”
Claim · model-written summary
The second food plant most affected Cotesia melanoscela development time and size.
- Taxon
- food plantt0
- Treatment
- second larval food plant consumede0
- Interactor
- Cotesia melanoscelaCotesia melanoscelae0other
- Outcome
- Development time and size of Cotesia melanoscelae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Development time and size of Cotesia melanoscela were affected most by the second larval food plant consumed.”
t0“food plant switching by a herbivore”
Claim · model-written summary
Parasitoid performance was most affected by host growth rate and final host weight.
- Taxon
- food plantt0
- Outcome
- Parasitoid performancee0
- Qualifier
- larval host’s relative growth rate and the final weight of the host larva at the time of parasitoid emergencee0
Not reportedDirection
Verbatim
e0“Parasitoid performance was affected most by the larval host’s relative growth rate and the final weight of the host larva at the time of parasitoid emergence.”
t0“food plant switching by a herbivore”
Claim · model-written summary
Host plant switching affected L. dispar weight at parasitoid emergence.
- Taxon
- food plantt0
- Treatment
- Host plant switchinge0
- Interactor
- L. disparLymantria dispare0herbivoret0
- Outcome
- weight of L. dispar larvae at the time of parasitoid emergencee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host plant switching affected the weight of L. dispar larvae at the time of parasitoid emergence”
t0“food plant switching by a herbivore”
Claim · model-written summary
Switching itself was not a significant factor in C. melanoscela size or development.
- Taxon
- food plantt0
- Treatment
- switching per see0
- Interactor
- C. melanoscelaCotesia melanoscelae0other
- Outcome
- C. melanoscela size or developmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of switching per se was not a significant factor in C. melanoscela size or development.”
t0“food plant switching by a herbivore”
Claim · model-written summary
L. dispar larvae on Populus as the second host outperformed larvae ultimately fed Acer.
- Treatment
- Populuse0
- Interactor
- Lymantria disparLymantria dispare0herbivoret0
- Outcome
- outperformede0
- Direction
- outperformede0
- Comparator
- Acere0
PopulusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lymantria dispar larvae that fed on Populus as their second host outperformed larvae that fed ultimately on Acer.”
t0“food plant switching by a herbivore”
Claim · model-written summary
Parasitoids from L. dispar fed Populus outperformed those from larvae fed Acer.
- Treatment
- Populuse0
- Interactor
- L. disparLymantria dispare0herbivoret0
- Outcome
- outperformede0
- Direction
- outperformede0
- Comparator
- Acere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Parasitoids yielded from L. dispar larvae that fed ultimately on Populus outperformed parasitoids yielded from larvae that fed ultimately on Acer .”
t0“food plant switching by a herbivore”
Claim · model-written summary
Parasitism mortality of L. dispar was highest with Populus, poor with Acer, and intermediate after switching.
- Interactor
- L. disparLymantria dispare0herbivoret0
- Second interactor
- C. melanoscelaCotesia melanoscelae0other
- Outcome
- Per cent mortality of L. dispar due to parasitisme0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Per cent mortality of L. dispar due to parasitism and percentage adult C. melanoscela emergence were highest in parasitized larvae fed Populus , poor in hosts fed Acer , and intermediate in switching larvae.”
t0“food plant switching by a herbivore”
Claim · model-written summary
Adult C. melanoscela emergence was highest with Populus, poor with Acer, and intermediate after switching.
- Interactor
- C. melanoscelaCotesia melanoscelae0other
- Second interactor
- L. disparLymantria dispare0herbivoret0
- Outcome
- percentage adult C. melanoscela emergencee0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Per cent mortality of L. dispar due to parasitism and percentage adult C. melanoscela emergence were highest in parasitized larvae fed Populus , poor in hosts fed Acer , and intermediate in switching larvae.”
t0“food plant switching by a herbivore”