Rangewide responses of Mimulus cardinalis to an extreme heat event.

ABSTRACT:

Premise

Extreme events are an understudied aspect of ongoing anthropogenic climate change that could play a disproportionate role in the threat that rapid environmental shifts pose to natural populations.

Methods

We exposed plants originating from seeds that were harvested before (ancestors) and after (descendants) multiple extreme heat events from six populations across the range of Mimulus cardinalis (Phyrmaceae) to a short-term heat-wave treatment in controlled growth chamber environments. We assessed physiological, performance, and functional responses (stomatal conductance, leaf temperature deficit, photosystem II efficiency, relative growth rate, specific leaf area, and leaf dry matter content) to the heat-wave treatment, along with evolutionary responses (differences

SUBMITTER: Albano LJ 

PROVIDER: S-EPMC12918904 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature