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 …

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 …

Motivation More than half of Earth's species are contained in a mere 1.4% of its land area,
but the climates of many of these biodiversity hotspots are projected to disappear as a …

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

Aim Higher‐elevation areas on islands and continental mountains tend to be separated by
longer distances, predicting higher endemism at higher elevations; our study is the first to …

Species' geographic ranges are limited by climate and species interactions. Climate is the
prevailing explanation for why species live only within narrow elevational ranges in …

Tropical mountains are hot spots of biodiversity and endemism,,, but the evolutionary origins
of their unique biotas are poorly understood. In varying degrees, local and regional …

40 Years of Evolution is a landmark study of the finches first made famous by Charles
Darwin, one that documents as never before the evolution of species through natural …

Species richness is greatest in the tropics, and much of this diversity is concentrated in
mountains. Janzen proposed that reduced seasonal temperature variation selects for …

Many groups show higher species richness in tropical regions but the underlying causes
remain unclear. Despite many competing hypotheses to explain latitudinal diversity …