Claim · model-written summary
Gulf of St. Lawrence relict populations probably did not survive in place through glaciation.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirectionValueQualifier
Verbatim
e0“The relict populations in the Gulf of St. Lawrence are probably not glacial survivors”
Title
Approaches to Disjunct Populations: The Contribution of Palynology
Donald R. Whitehead Annals of the Missouri Botanical Garden 1972. doi:10.2307/2394748
Other claims from this paper (10)
- Observation Biota shifted substantially southward during glacial maxima.
- Observation Direct evidence places some disjuncts in or beyond their present isolated regions.
- Observation Other cases have indirect evidence from modern associates of disjuncts.
- Observation Disjuncts probably arrived in full or late glacial periods and survived to present.
- Observation Mixed-mesophytic forest components shifted south and the present community arose through reimmigration and reassociation.
- Observation Some Gulf relict populations probably dispersed eastward south of the ice margin.
- Observation Prairie disjuncts may have arrived in the late glacial or hypsithermal.
- Observation Some Atlantic Coastal Plain disjuncts may have dispersed inland in full glacial times.
- Observation Strand and dune plants may have moved inland along Champlain sea shores in early late glacial time.
- Recommendation The authors advise combining paleoecology with other disciplines to resolve disjunction histories.