Claim · model-written summary
The 2022 summer drought almost eliminated the heathland Marchantia populations.
- Taxon
- Marchantia
Marchantiae0 - Outcome
- heathland Marchantia populationse0
- Direction
- almost wiped oute0
- Qualifier
- summer of 2022e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A major drought in the summer of 2022 almost wiped out the heathland Marchantia populations”
Title
The biology of Marchantia polymorpha subsp. ruderalis Bischl. & Boissel. Dub in nature
Jeffrey G. Duckett; Silvia Pressel; Jill Kowal Frontiers in Plant Science 2024. doi:10.3389/fpls.2024.1339832
Other claims from this paper (18)
- Observation Initial establishment after fire came from airborne spores.
- Observation Later spread was through gemmae with less exacting germination requirements.
- Observation Young sporelings were highly gemmiferous.
- Observation Gemma production became less frequent after sex organ formation.
- Observation Up to three waves of carpocephalum production occurred within a year.
- Observation Most antheridiophores appeared 2-3 months before archegoniophores.
- Observation Male and female thalli had similar growth rates.
- Observation Spermatozoids were produced almost continuously throughout the year.
- Observation Sporophytes matured only in summer.
- Observation A 1:1 sex ratio was apparent only over the full period due to asynchronous sex organ production.
- Observation Males exceeded females in spring.
- Observation Females were more numerous in summer.
- Observation Fertilization was almost 100%.
- Observation Fertilization distances reached 19 m.
- Observation Female-only populations developed archegoniophores.
- Observation Archegoniophore stalks were shorter in female-only populations than after fertilization.
- Mechanism Post-fire disappearance was attributed to declining topsoil nutrients and bryophyte competition.
- Observation Other bryophytes survived the 2022 summer drought.