Mountain systems are exceptionally species rich, yet the associated elevational gradients in
functional and phylogenetic diversity and their consistency across latitude remain little …

Aim We present the first global analysis of elevational gradients in functional and
phylogenetic diversity of birds and test for signals of deterministic processes (ie …

Tropical mountains are hotspots of biodiversity, but the factors that generate this high
diversity remain poorly understood. To identify possible mechanisms that influence avian …

Understanding how biotic and abiotic interactions influence community assembly and
composition is a fundamental goal in community ecology. Addressing this issue is …

Community assembly theory hypothesizes that two main niche‐based processes act to
shape composition and organization of biological assemblages: abiotic filtering and …

Avian faunas vary greatly among montane areas; those at high latitudes are biologically
impoverished, whereas those of some low-latitude mountains are biologically very complex …

Understanding the biogeographical patterns, and evolutionary and environmental drivers,
underpinning morphological diversity are key for determining its origins and conservation …

Mountain ranges harbour exceptionally high biodiversity, which is now under threat from
rapid environmental change. However, despite decades of effort, the limited availability of …

Variation in species richness across environmental gradients may be associated with an
expanded volume or increased packing of ecological niche space. However, the relative …

The origin, distribution, and function of biological diversity are fundamental themes of
ecology and evolutionary biology. Research on birds has played a major role in the history …