Abstract
Abstract The relative suitability of four host plants was determined both for unparasitized Pieris brassicae L. caterpillars and for Cotesia glomerata (L.) developing in P. brassicae . For unparasitized P. brassicae , growth rate and pupal weight were highest on Brussels sprouts and Swedish turnip, intermediate on rape, and lowest on nasturtium. In contrast, C. glomerata larval developmental rate and adult longevity were greatest for wasps from P. brassicae reared on nasturtium. On all four plants, the host‐parasitoid complex attained a lower final weight than unparasitized P. brassicae , and it is argued that this difference is due primarily to reduced consumption by parasitized P. brassicae . Among parasitized caterpillars, however, complex weight was positively correlated with clutch size, suggesting that C. glomerata larvae are able to partially counteract the effect of parasitization per se on host consumption. The host plants of P. brassicae appear to face an evolutionary dilemma: in order to increase the total mass of parasitoids produced, they must suffer greater loss of foliage. This trade‐off, if common in nature, may represent a formidable constraint on coevolution between host plants and parasitoids.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Unparasitized Pieris brassicae growth rate and pupal weight were highest on Brussels sprouts and Swedish turnip.
- Taxon
- Brussels sprouts
Brassica oleracea var. gemmiferae0 - Interactor
- P. brassicae
_Pieris_brassicae_-_Foret_de_Bouconne%2C_France_-_female.jpg?width=60)
Pieris brassicaee0herbivore - Outcome
- growth rate and pupal weighte0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Pieris_brassicae_-_Foret_de_Bouconne%2C_France_-_female.jpg?width=500)
Verbatim
e0“For unparasitized P. brassicae , growth rate and pupal weight were highest on Brussels sprouts and Swedish turnip, intermediate on rape, and lowest on nasturtium.”
Claim · model-written summary
Unparasitized Pieris brassicae growth rate and pupal weight were highest on Swedish turnip.
- Taxon
- Swedish turnip
Brassica napus subsp. rapiferae0 - Interactor
- P. brassicaePieris brassicaee0herbivore
- Outcome
- growth rate and pupal weighte0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For unparasitized P. brassicae , growth rate and pupal weight were highest on Brussels sprouts and Swedish turnip, intermediate on rape, and lowest on nasturtium.”
Claim · model-written summary
Unparasitized Pieris brassicae growth rate and pupal weight were intermediate on rape.
- Taxon
- rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Interactor
- P. brassicaePieris brassicaee0herbivore
- Outcome
- growth rate and pupal weighte0
- Direction
- intermediatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“For unparasitized P. brassicae , growth rate and pupal weight were highest on Brussels sprouts and Swedish turnip, intermediate on rape, and lowest on nasturtium.”
Claim · model-written summary
Unparasitized Pieris brassicae growth rate and pupal weight were lowest on nasturtium.
- Taxon
- nasturtium
Tropaeolum majuse0 - Interactor
- P. brassicaePieris brassicaee0herbivore
- Outcome
- growth rate and pupal weighte0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For unparasitized P. brassicae , growth rate and pupal weight were highest on Brussels sprouts and Swedish turnip, intermediate on rape, and lowest on nasturtium.”
Claim · model-written summary
Cotesia glomerata larval development and adult longevity were greatest when hosts fed on nasturtium.
- Taxon
- nasturtiumTropaeolum majuse0
- Interactor
- C. glomerata
Cotesia glomeratae0other - Second interactor
- P. brassicaePieris brassicaee0herbivore
- Outcome
- C. glomerata larval developmental rate and adult longevitye0
- Direction
- greateste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C. glomerata larval developmental rate and adult longevity were greatest for wasps from P. brassicae reared on nasturtium.”
Claim · model-written summary
Across all four plants, parasitized host complexes had lower final weight than unparasitized caterpillars.
- Taxon
- host plantt0
- Interactor
- P. brassicaePieris brassicaee0herbivore
- Outcome
- host‐parasitoid complex attained a lower final weighte0
- Direction
- lowere0
- Comparator
- unparasitized P. brassicaee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On all four plants, the host‐parasitoid complex attained a lower final weight than unparasitized P. brassicae”
t0“host plant”
Claim · model-written summary
Among parasitized caterpillars, complex weight was positively correlated with parasitoid clutch size.
Verbatim
e0“Among parasitized caterpillars, however, complex weight was positively correlated with clutch size”
t0“host plant on performance of Pieris brassicae and its parasitoid, Cotesia glomerata”