Claim · model-written summary
Pin size hardly affected percentage-contribution estimates.
- Taxon
- heathlandt0
- Treatment
- pin sizee0
- Outcome
- Estimates of percentage contributione0
- Direction
- hardly affectede0
- Comparator
- pin sizee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Verbatim
e0“Estimates of percentage contribution were hardly affected by pin size”
t0“heathland”
Title
The use of point quadrats for the analysis of heathland
RE Winkworth Australian Journal of Botany 1955. doi:10.1071/bt9550068
Other claims from this paper (5)
- Method / resource Inclined quadrats usually yielded higher percentage-cover estimates for heathland species than vertical quadrats.
- Method / resource Inclined quadrats gave no precision advantage for estimating vegetation percentage contribution.
- Method / resource Pin thickness caused large errors in percentage cover estimates for microphyllous heathland vegetation.
- Method / resource A cross-wire sighting tube minimized pin-thickness errors, but intertangled foliage requires caution.
- Method / resource Independently randomized pins lowered variance of percentage cover and contribution estimates compared with frames of 10.