Claim · model-written summary
The degree of aggregation of eggs, expressed as 1/k, tends to decrease as egg or parental density increases.
- Taxon
- cabbage plants
Brassica oleracea var. capitatae1 - Treatment
- parental densitye3
- Interactor
- Pieris rapae crucivora
Pieris rapae crucivorae0herbivore - Outcome
- degree of aggregation expressed as the reciprocal of the parametere3
- Direction
- tends to decreasee3
- Setting
- net housee1
Verbatim
e0“in the common cabbage butterfly, Pieris rapae crucivora”
e1“the countings of egg number per plant were made on both cabbage plants cultivated in the farm and planted in the net house”
e3“the degree of aggregation expressed as the reciprocal of the parameter, 1/ k , tends to decrease as the egg or parental density increases”
Title
Shiro Kobayashi Population Ecology 1965. doi:10.1007/bf02518794
Other claims from this paper (4)
- Observation Egg counts per cabbage plant fit a negative binomial distribution, except where they agree with a Poisson series.
- Observation At a given parental density, egg distribution follows a negative binomial with a common parameter, regardless of laid-egg density.
- Observation When a single female lays eggs, the spatial pattern of egg distribution is always lean.
- Association The lean egg pattern changes toward patchy as parental density increases.