Abstract
Heavy metal contaminations can be considered as one of the serious environ- mental pollution and may have adverse effects on different organisms. This study was carried out to search how rearing the cabbage aphid (Brevico- ryne brassicae L.) on heavy metal contaminated host plants affects aphid life history traits. The re- sults revealed that both radish and cabbage host plants (Raphanus sativus L., Brassica oleracea L) contaminated separately with copper (Cu) and lead (Pb) have an important effects on life history traits of aphids. The life history traits such as fe- cundity (number of offspring produced per day) and fitness (intrinsic rate of population increase) were reduced about 30% when aphids were reared on contaminated host plants. However, no concise effects were found in case of development time (from birth to beginning of first reproduc- tion). Reproduction potential of aphid popula- tion signficantly decreased and their mortality tended to be higher about 20 % on contaminated host plants. Cu and Pb had different impacts on life history traits of aphids living on the same host plant, and the same heavy metal had different ef- fects on aphid life history traits across host plants. The uptake of Cu and Pb by cabbage aphids feed- ing on contaminated host plants affected life his- tory traits due to direct toxity or reduced food quality of host plants. Results are discussed in the context of the possible effects of heavy metal pol- lution on herbivore-host plant relationships. This study indicates that aphid-host plant system has several advantages to study the heavy metal pol- lution effects on food chain in nature.
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
Contaminated host plants reduced aphid fecundity by about 30%
- Taxon
- radish and cabbage
Brassica oleracea var. capitata
Raphanus sativuse1 - Treatment
- contaminated host plantse2
- Interactor
- cabbage aphid
.jpg?width=60)
Brevicoryne brassicaee0herbivore - Outcome
- number of offspring produced per daye2
- Direction
- reducede2
- Value
- 30%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“how rearing the cabbage aphid”
e1“both radish and cabbage host plants (Raphanus sativus L., Brassica oleracea L) contaminated separately with copper (Cu) and lead (Pb)”
e2“The life history traits such as fe- cundity (number of offspring produced per day) and fitness (intrinsic rate of population increase) were reduced about 30% when aphids were reared on contaminated host plants”
Claim · model-written summary
Contaminated host plants reduced aphid fitness by about 30%
- Taxon
- radish and cabbageBrassica oleracea var. capitataRaphanus sativuse1
- Treatment
- contaminated host plantse2
- Interactor
- cabbage aphidBrevicoryne brassicaee0herbivore
- Outcome
- fitness (intrinsic rate of population increase)e2
- Direction
- reducede2
- Value
- 30%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“how rearing the cabbage aphid”
e1“both radish and cabbage host plants (Raphanus sativus L., Brassica oleracea L) contaminated separately with copper (Cu) and lead (Pb)”
e2“The life history traits such as fe- cundity (number of offspring produced per day) and fitness (intrinsic rate of population increase) were reduced about 30% when aphids were reared on contaminated host plants”
Claim · model-written summary
Contaminated host plants significantly decreased aphid reproduction potential
- Taxon
- radish and cabbageBrassica oleracea var. capitataRaphanus sativuse1
- Treatment
- contaminated host plantse3
- Interactor
- cabbage aphidBrevicoryne brassicaee0herbivore
- Outcome
- Reproduction potentiale3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“how rearing the cabbage aphid”
e1“both radish and cabbage host plants (Raphanus sativus L., Brassica oleracea L) contaminated separately with copper (Cu) and lead (Pb)”
e3“Reproduction potential of aphid popula- tion signficantly decreased and their mortality tended to be higher about 20 % on contaminated host plants”
Claim · model-written summary
Contaminated host plants tended to increase aphid mortality by about 20%
- Taxon
- radish and cabbageBrassica oleracea var. capitataRaphanus sativuse1
- Treatment
- contaminated host plantse3
- Interactor
- cabbage aphidBrevicoryne brassicaee0herbivore
- Outcome
- mortalitye3
- Direction
- highere3
- Value
- 20 %e3
- Qualifier
- tended to be highere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“how rearing the cabbage aphid”
e1“both radish and cabbage host plants (Raphanus sativus L., Brassica oleracea L) contaminated separately with copper (Cu) and lead (Pb)”
e3“Reproduction potential of aphid popula- tion signficantly decreased and their mortality tended to be higher about 20 % on contaminated host plants”
Claim · model-written summary
Development time of aphids showed no concise effect from contaminated host plants
- Taxon
- radish and cabbageBrassica oleracea var. capitataRaphanus sativuse1
- Treatment
- copper (Cu) and lead (Pb)e1
- Outcome
- development timee4
- Direction
- no_changeinferrede4
- Qualifier
- no concise effectse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“both radish and cabbage host plants (Raphanus sativus L., Brassica oleracea L) contaminated separately with copper (Cu) and lead (Pb)”
e4“However, no concise effects were found in case of development time”
Claim · model-written summary
Cu and Pb had different impacts on aphid life history traits on the same host plant
- Taxon
- radish and cabbageBrassica oleracea var. capitataRaphanus sativuse1
- Treatment
- Cu and Pbe5
- Outcome
- life history traitse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“both radish and cabbage host plants (Raphanus sativus L., Brassica oleracea L) contaminated separately with copper (Cu) and lead (Pb)”
e5“Cu and Pb had different impacts on life history traits of aphids living on the same host plant, and the same heavy metal had different ef- fects on aphid life history traits across host plants”
Claim · model-written summary
The same heavy metal had different effects on aphid life history traits across host plants
- Taxon
- radish and cabbageBrassica oleracea var. capitataRaphanus sativuse1
- Treatment
- heavy metale5
- Outcome
- aphid life history traitse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“both radish and cabbage host plants (Raphanus sativus L., Brassica oleracea L) contaminated separately with copper (Cu) and lead (Pb)”
e5“Cu and Pb had different impacts on life history traits of aphids living on the same host plant, and the same heavy metal had different ef- fects on aphid life history traits across host plants”
The same questions in other papers
copper atom · pest · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- negative
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.