Abstract
Chemical and agronomical control of volunteer plants is difficult, especially in reduced-input cropping systems where feeding by natural herbivores may become an important cause of their mortality. The consumption of the early growth stages of winter oilseed rape (Brassica napus L. ssp. napus) by five species of ground-surface invertebrates abundant in rape fields of Central Europe was studied under laboratory conditions. The species were particular in their preferences for growth stages of oilseed rape. The gastropods Arion lusitanicus and Helix pomatia preferred seedlings rather than seeds, whereas all three species of arthropods rejected seedlings. Pseudoophonus rufipes consumed all seed stages with similar intensity, while Pterostichus melanarius readily accepted fresh, dry and imbibed seeds. The overall consumption by the isopod Armadillidium vulgare was low and concentrated on exhumed seeds. Seeds and the early growth stages of oilseed rape are thus susceptible to invertebrate predation, each stage being killed by a specific group of invertebrate predators.
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Claims 6
Claim · model-written summary
Arion lusitanicus preferred oilseed rape seedlings over seeds.
- Taxon
- winter oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse1 - Interactor
- Arion lusitanicusArion lusitanicuse0herbivore
- Outcome
- seedlingse0
- Direction
- preferrede0
- Comparator
- seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“The gastropods Arion lusitanicus and Helix pomatia preferred seedlings rather than seeds”
e1“winter oilseed rape (Brassica napus L. ssp. napus)”
Claim · model-written summary
Helix pomatia preferred oilseed rape seedlings over seeds.
- Taxon
- winter oilseed rapeBrassica napuse1
- Interactor
- Helix pomatia
Helix pomatiae0herbivore - Outcome
- seedlingse0
- Direction
- preferrede0
- Comparator
- seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The gastropods Arion lusitanicus and Helix pomatia preferred seedlings rather than seeds”
e1“winter oilseed rape (Brassica napus L. ssp. napus)”
Claim · model-written summary
All three studied arthropod species rejected oilseed rape seedlings.
- Taxon
- winter oilseed rapeBrassica napuse1
- Interactor
- arthropodsArthropodae0herbivore
- Outcome
- rejected seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all three species of arthropods rejected seedlings.”
e1“winter oilseed rape (Brassica napus L. ssp. napus)”
Claim · model-written summary
Pseudoophonus rufipes consumed all oilseed rape seed stages with similar intensity.
- Taxon
- winter oilseed rapeBrassica napuse1
- Interactor
- Pseudoophonus rufipes
.png?width=60)
Harpalus rufipese0herbivore - Outcome
- consumed all seed stages with similar intensitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.png?width=500)
Verbatim
e0“Pseudoophonus rufipes consumed all seed stages with similar intensity”
e1“winter oilseed rape (Brassica napus L. ssp. napus)”
Claim · model-written summary
Pterostichus melanarius accepted fresh, dry, and imbibed oilseed rape seeds.
- Taxon
- winter oilseed rapeBrassica napuse1
- Interactor
- Pterostichus melanarius
Pterostichus melanariuse0herbivore - Outcome
- readily accepted fresh, dry and imbibed seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pterostichus melanarius readily accepted fresh, dry and imbibed seeds.”
e1“winter oilseed rape (Brassica napus L. ssp. napus)”
Claim · model-written summary
Armadillidium vulgare showed low consumption concentrated on exhumed oilseed rape seeds.
- Taxon
- winter oilseed rapeBrassica napuse1
- Organ / stage
- exhumed seedse0
- Interactor
- Armadillidium vulgare
Armadillidium vulgaree0herbivore - Outcome
- consumption by the isopod Armadillidium vulgaree0
- Direction
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The overall consumption by the isopod Armadillidium vulgare was low and concentrated on exhumed seeds.”
e1“winter oilseed rape (Brassica napus L. ssp. napus)”