Germination temperature sensitivity differs between co-occurring tree species and climate origins resulting in contrasting vulnerability to global warming.

ABSTRACT: Climate change is shifting temperatures from historical patterns, globally impacting forest composition and resilience. Seed germination is temperature-sensitive, making the persistence of populations and colonization of available habitats vulnerable to warming. This study assessed germination response to temperature in foundation trees in south-western Australia's Mediterranean-type climate forests (Eucalyptus marginata (jarrah) and Corymbia calophylla (marri)) to estimate the thermal niche and vulnerability among populations. Seeds from the species' entire distribution were collected from 12 co-occurring populations. Germination thermal niche was investigated using a thermal gradient plate (5-40°C). Five constant temperatures between 9 and 33°C were used to test how the ger

SUBMITTER: Filipe JC 

PROVIDER: S-EPMC10290426 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature