Data from: Functional traits reveal the expansion and packing of ecological niche space underlying an elevational diversity gradient in passerine birds

Alex L. Pigot, Christopher H. Trisos & Joseph A. Tobias
Variation in species richness across environmental gradients may be associated with an expanded volume or increased packing of ecological niche space. However, the relative importance of these alternative scenarios remains unknown, largely because standardised information on functional traits and their ecological relevance is lacking for major diversity gradients. Here we combine data on morphological and ecological traits for 523 species of passerine birds distributed across an Andes-to-Amazon elevation gradient. We show that morphological traits capture...
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These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
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