Hierarchical response models: new perspectives on development

Hierarchical response models are advancing our understanding of the facultative adjustment of development and reproduction to the environment. E, R, and K's manuscript brings together a vast array of empirical data to support their Tier 2 model highlighting the importance of both the energetic and local mortality environments for reproductive development and timing. We propose that incorporating existing hierarchical response models, as well as analyses from industrial societies, will aid the hunt for underlying mechanisms that embody the local mortality environment impacting reproductive schedules.