Generation length of the world's amphibians and reptiles

• DOI: 10.1111/ecog.07527
• Publication Date: 2025-03-19T09:54:40Z
• Authors: Giordano Mancini; Luca Santini; Victor Cazalis; Gentile Francesco...; Shai Meiri; Uri Roll; Sofia Silvestri; Daniel Pincheira‐...; Moreno Di Marco

Variation in life histories influences demographic processes, from adaptive changes to population declines leading extinction. Among history traits, generation length offers a critical feature forecast species' trajectories such as (widely used by the IUCN Red List) and adaptability environmental change over time. Therefore, estimates of are crucial monitor stability or predict future highly threatened organisms, particularly amphibians reptiles, which among vertebrates for uncertainty impacts remains high. Despite its importance, reptiles is largely missing. Here, we aim fill this gap modeling lengths amphibians, squamates testudines function species size, climate, phylogeny using generalized additive models phylogenetic least squares. We estimated 5059 (57%) 8722 (73%) 117 (32%) testudines. Our performed well most families (e.g. Bufonidae Lacertidae Colubridae squamates, Geoemydidae testudines) while found high around prediction few families, notably Chamaeleonidae. Species' body size mean temperature were main predictors all groups. Although our not meant substitute robust validated measurements field studies natural museums, they can help reduce existing biases conservation assessments until data comprehensively available.