Abstract
Abstract. 1. Small arenas in the field were used for observing adult Agonum dorsale (Pont.) foraging in a wheat crop. 2. The carabid showed no significant change in behaviour between low and high aphid density arenas. 3. Individuals foraged nocturnally and spent most of their time on the ground searching for prey. They climbed infrequently and then not high enough to reach aphid aggregations on the ears and flag leaves of wheat. 4. Gut dissection showed that more individuals had eaten aphids in the high aphid density arena than the low. Recording of aphid distribution within the arenas showed that this increase in aphid consumption could be explained by A.dorsale capturing aphids on the ground. Prey availability per unit area was in fact higher on the ground than on the wheat. 5. The contribution of ground‐zone predators such as A.dorsale to the control of cereal aphids will be determined by the frequency with which aphids arrive on the ground and the proportion of these which reclimb the wheat and reproduce in the absence of predation.
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Claims 6
Claim · model-written summary
Agonum dorsale showed no significant change in behaviour between low and high aphid density arenas in wheat.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- aphid densitye1
- Interactor
- Agonum dorsale
_-_(imago)%2C_Elst_(Gld)%2C_the_Netherlands_-_2.jpg?width=60)
Anchomenus dorsalise0biocontrol_agent - Second interactor
- aphide1pest
- Outcome
- behavioure1
- Comparator
- lowe1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_(imago)%2C_Elst_(Gld)%2C_the_Netherlands_-_2.jpg?width=500)
Verbatim
e0“Small arenas in the field were used for observing adult Agonum dorsale (Pont.) foraging in a wheat crop”
e1“The carabid showed no significant change in behaviour between low and high aphid density arenas”
Claim · model-written summary
More Agonum dorsale individuals had eaten aphids in the high aphid density arena than in the low.
- Taxon
- wheatTriticum aestivume0
- Treatment
- high aphid density arenae2
- Interactor
- Agonum dorsaleAnchomenus dorsalise0biocontrol_agent
- Second interactor
- aphide2pest
- Outcome
- individuals had eaten aphidse2
- Direction
- moree2
- Comparator
- lowe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Small arenas in the field were used for observing adult Agonum dorsale (Pont.) foraging in a wheat crop”
e2“Gut dissection showed that more individuals had eaten aphids in the high aphid density arena than the low”
Claim · model-written summary
Agonum dorsale foraged nocturnally, mostly on the ground.
- Taxon
- wheatTriticum aestivume0
- Interactor
- Agonum dorsaleAnchomenus dorsalise0biocontrol_agent
- Outcome
- foraged nocturnallye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Small arenas in the field were used for observing adult Agonum dorsale (Pont.) foraging in a wheat crop”
e4“Individuals foraged nocturnally and spent most of their time on the ground searching for prey”
Claim · model-written summary
Agonum dorsale climbed infrequently and not high enough to reach aphid aggregations on wheat ears and flag leaves.
- Taxon
- wheatTriticum aestivume3
- Organ / stage
- ears and flag leaves of wheate3
- Interactor
- Agonum dorsaleAnchomenus dorsalise0biocontrol_agent
- Outcome
- climbed infrequentlye3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Small arenas in the field were used for observing adult Agonum dorsale (Pont.) foraging in a wheat crop”
e3“They climbed infrequently and then not high enough to reach aphid aggregations on the ears and flag leaves of wheat”
Claim · model-written summary
The increase in aphid consumption may be explained by Agonum dorsale capturing aphids on the ground.
- Taxon
- wheatTriticum aestivume0
- Interactor
- A.dorsaleAnchomenus dorsalise5biocontrol_agent
- Outcome
- increase in aphid consumptione5
- Qualifier
- capturing aphids on the grounde5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Small arenas in the field were used for observing adult Agonum dorsale (Pont.) foraging in a wheat crop”
e5“Recording of aphid distribution within the arenas showed that this increase in aphid consumption could be explained by A.dorsale capturing aphids on the ground”
Claim · model-written summary
Prey availability per unit area was higher on the ground than on wheat.
- Taxon
- wheatTriticum aestivume6
- Interactor
- aphide5pest
- Outcome
- Prey availability per unit areae6
- Direction
- highere6
- Comparator
- on the wheate6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Recording of aphid distribution within the arenas showed that this increase in aphid consumption could be explained by A.dorsale capturing aphids on the ground”
e6“Prey availability per unit area was in fact higher on the ground than on the wheat”