Marine species and assemblage change foreshadowed by their thermal bias over Early Jurassic warming.

ABSTRACT: A mismatch of species' thermal preferences to their environment may indicate how they will respond to future climate change. Averaging this mismatch across species may forewarn that some assemblages will undergo greater reorganization, extirpation, and possibly extinction, than others. Here, we examine how regional warming determines species occupancy and assemblage composition of marine bivalves, brachiopods, and gastropods over one-million-year time steps during the Early Jurassic. Thermal bias, the difference between modelled regional temperatures and species' long-term thermal optima, predicts a gradient of species occupancy response to warming. Species that become extirpated or extinct tend to have cooler temperature preferences than immigrating species, while regionally persisting sp

SUBMITTER: Reddin CJ 

PROVIDER: S-EPMC11799210 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature