Abstract
To determine the indirect effects of elevated CO2 on larval Lepidoptera, we compared the growth and development of larvae of Vanessa cardui Linnaeus (Lepidoptera: Nymphalidae) on Glycine max Linnaeus (soybean) foliage grown under ambient or elevated levels of CO 2 from first instar to pupation. There was no significant difference in larval survivorship or the duration of larval develop- ment between the two treatments. The usual sexual difference in pupal size in V. cardui was lost when individuals were reared on a diet of G. max foliage grown under elevated CO 2 conditions. Despite the fact that increases in levels of atmospheric CO 2 are projected to increase the susceptibility of soybean foliage to coleopteran pests, impacts of such exposure may vary with herbivore taxon, making projections of future yield losses challenging.
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Claims 3
Claim · model-written summary
Larval survivorship did not differ significantly between ambient and elevated CO2 foliage diets.
- Taxon
- Glycine max Linnaeus
Glycine maxe1 - Treatment
- elevated levels of CO 2e1
- Interactor
- Vanessa cardui Linnaeus
Vanessa carduie2herbivore - Outcome
- larval survivorshipe0
- Direction
- no significant differencee0
- Comparator
- ambiente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no significant difference in larval survivorship or the duration of larval develop- ment between the two treatments”
e1“on Glycine max Linnaeus (soybean) foliage grown under ambient or elevated levels of CO 2”
e2“larvae of Vanessa cardui Linnaeus”
Claim · model-written summary
Larval development duration did not differ significantly between ambient and elevated CO2 foliage diets.
- Taxon
- Glycine max LinnaeusGlycine maxe1
- Treatment
- elevated levels of CO 2e1
- Interactor
- Vanessa cardui LinnaeusVanessa carduie2herbivore
- Outcome
- duration of larval develop- mente0
- Direction
- no significant differencee0
- Comparator
- ambiente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no significant difference in larval survivorship or the duration of larval develop- ment between the two treatments”
e1“on Glycine max Linnaeus (soybean) foliage grown under ambient or elevated levels of CO 2”
e2“larvae of Vanessa cardui Linnaeus”
Claim · model-written summary
The usual sex difference in pupal size was absent with elevated CO2 grown soybean foliage.
- Taxon
- Glycine max LinnaeusGlycine maxe1
- Treatment
- elevated CO 2 conditionse0
- Interactor
- V. carduiVanessa carduie0herbivore
- Outcome
- sexual difference in pupal sizee0
- Direction
- loste0
- Comparator
- ambiente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The usual sexual difference in pupal size in V. cardui was lost when individuals were reared on a diet of G. max foliage grown under elevated CO 2 conditions”
e1“on Glycine max Linnaeus (soybean) foliage grown under ambient or elevated levels of CO 2”
The same questions in other papers
co2 · Vanessa cardui · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- no effect
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.