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 …

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 …

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 …

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 …

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 …

Renowned evolutionary biologists Peter and Rosemary Grant have produced landmark
studies of the Galápagos finches first made famous by Charles Darwin. In How and Why …

A goal of evolutionary biology is to understand the roles of geography and ecology in
speciation. The recent shared ancestry of sister species can leave a major imprint on their …