Claim · model-written summary
Gryllus pennsylvanicus was among the most abundant granivorous invertebrates.
- Taxon
- Gryllus pennsylvanicus
Gryllus pennsylvanicuse0 - Outcome
- most abundant granivorous invertebratese0
- Direction
- most abundante0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most abundant granivorous invertebrates were crickets Gryllus pennsylvanicus and Allonemobius allardi , and carabid beetles, especially Harpalus pensylvanicus .”
Title
Density‐dependent predation of weed seeds in maize fields
Paula R. Westerman; Jaclyn K. Borza; Jelena Andjelkovic; et al. Journal of Applied Ecology 2008. doi:10.1111/j.1365-2664.2008.01481.x
Other claims from this paper (10)
- Association At three weeks, giant foxtail seed predation was strongly inversely density dependent.
- Association At seven weeks, cumulative seed predation showed only weak inverse density dependence.
- Observation Between weeks three and seven, the response reversed toward almost direct density dependence.
- Observation Invertebrates were the main consumers of seeds in maize fields during August–October.
- Observation Allonemobius allardi was among the most abundant granivorous invertebrates.
- Observation Harpalus pensylvanicus was particularly abundant among granivorous carabids.
- Mechanism Insects appeared unable to detect and respond numerically to weed patches, favoring patch persistence through inverse density-dependent predation.
- Observation Prairie deer mice were present but contributed little to autumn seed losses.
- Mechanism Weed densities in maize fields were not regulated through directly density-dependent seed predation because the available response period was too short.
- Recommendation Delaying harvest and tillage may extend invertebrate seed predation and allow later vertebrate predation.