Claim · model-written summary
At three weeks, giant foxtail seed predation was strongly inversely density dependent.
- Taxon
- Setaria faberi
Setaria faberie1 - Treatment
- seed additione0
- Outcome
- seed predatione0
- Direction
- lowerinferrede0
- Qualifier
- Three weekse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three weeks after seed addition, seed predation was strongly and inversely density dependent.”
e1“giant foxtail Setaria faberi”
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 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 Gryllus pennsylvanicus was among the most abundant granivorous invertebrates.
- 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.