Geographic variation in offspring size: Long- and short-term climate affect mean seed mass of Streptanthus populations.

ABSTRACT: Offspring size is a key functional trait that can affect subsequent life history stages; in many species, it exhibits both local adaptation and phenotypic plasticity. Variation among populations in offspring size may be explained by various factors, including local climatic conditions. However, geographic variation in climate may be partitioned into long-term and interannual sources of variation, which may differ in their effects on population mean offspring size. To assess environmental correlates of offspring size, we evaluated geographic variation in seed mass among 88 populations representing 6 species of Streptanthus (Brassicaceae) distributed across a broad climatic gradient in California. We examined the effects of temperature-mediated growing season length and precipitation on popu

SUBMITTER: Love NLR 

PROVIDER: S-EPMC9287029 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature