Niche breadth is a unifying concept spanning diverse aspects of ecology, evolution, and
conservation biology. Niche breadth usually refers to the diversity of resources used or …

Geographic range size has long fascinated ecologists and evolutionary biologists, yet our
understanding of the factors that cause variation in range size among species and across …

Species environmental niches are central to ecology, evolution, and global change
research, but their characterization and interpretation depend on the spatial scale …

The geographic ranges of closely related species can vary dramatically, yet we do not fully
grasp the mechanisms underlying such variation. The niche breadth hypothesis posits that …

Patterns of diversity within large regional biotas express the outcomes of processes,
operating on both regional and local scales, that influence evolutionary diversification as …

The genus Mimulus is a well-studied group of plant species, which has for decades allowed
researchers to address a wide array of fundamental questions in biology (Wu & al., 2008; …

Aim A limitation of species distribution models (SDMs) is that species with low sample sizes
are difficult to model. Yet, it is often important to know the habitat associations of poorly …

Understanding the environmental factors determining the distribution of species with
different range sizes can provide valuable insights for evolutionary ecology and …

Aim Ecological niches shape species commonness and rarity, yet, the relative importance of
different niche mechanisms within and across ecosystems remains unresolved. We tested …

Aim Closely related species vary greatly in range size. To understand what drives range‐
size variation, we established an integrative framework focusing on two causal pathways …