Claim · model-written summary
Strong layering was sometimes associated with atrophy of the remaining stem.
- Taxon
- Calluna vulgaris
Calluna vulgarist0 - Organ / stage
- steme0
- Outcome
- atrophy of the remaining part of the steme0
- Qualifier
- in some casese0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strongly developed layering was associated with increased stem and canopy vigour distal to the point of rooting, and in some cases atrophy of the remaining part of the stem”
t0“Heather (Calluna vulgaris)”
Title
A. J. MacDonald; A. H. Kirkpatrick; A. J. Hester; et al. Journal of Applied Ecology 1995. doi:10.2307/2404418
Other claims from this paper (16)
- Observation Adventitious roots occurred in over 50% of stems in every stand and 90% in six stands.
- Observation Strong adventitious root systems occurred on more than 30% of stems in seven stands.
- Association Prostrate stems were consistently associated with layering.
- Association Deeper humus-rich or peaty soil horizons were consistently associated with layering.
- Association Layering was associated with absent or scarce Hypnum cupressiforme/jutlandicum and lichens.
- Association Layering was associated with absent or scarce lichens, mainly Cladonia spp.
- Association There was weak evidence of more layering with Sphagnum spp. presence.
- Association There was weak evidence of more layering with Leucobryum glaucum presence.
- Association There was weak evidence of more layering with pleurocarpous mosses other than Hypnum.
- Association Younger stands had more layering.
- Association Strongly layered stands were more sheltered.
- Association Strong layering was associated with greater stem and canopy vigour beyond the rooting point.
- Mechanism The authors infer that layering may fill canopy gaps and reduce conditions suitable for later layering.
- Mechanism Continuity of layering and stable Calluna cover likely require discontinuous cover.
- Observation The authors consider layering underappreciated in previous Calluna studies focused on regularly burned stands.
- Recommendation The authors question regular burning on 10-15 year rotations as a management ideal.