Published May 10, 2019 | Version v1
Dataset Open

Data from: Temperature shapes opposing latitudinal gradients of plant taxonomic and phylogenetic β diversity

  • 1. University of California Los Angeles
  • 2. Santa Clara University
  • 3. Aarhus University
  • 4. University of Copenhagen
  • 5. University of Arizona

Description

Latitudinal and elevational richness gradients have received much attention from ecologists but there is little consensus on underlying causes. One possible proximate cause is increased levels of species turnover, or β diversity, in the tropics compared to temperate regions. Here, we leverage a large botanical dataset to map taxonomic and phylogenetic β diversity, as mean turnover between neighboring 100 × 100 km cells, across the Americas and determine key climatic drivers. We find taxonomic and tip‐weighted phylogenetic β diversity is higher in the tropics, but that basal‐weighted phylogenetic β diversity is highest in temperate regions. Supporting Janzen's 'mountain passes' hypothesis, tropical mountainous regions had higher β diversity than temperate regions for taxonomic and tip‐weighted metrics. The strongest climatic predictors of turnover were average temperature and temperature seasonality. Taken together, these results suggest β diversity is coupled to latitudinal richness gradients and that temperature is a major driver of plant community composition and change.

Notes

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: EF-0553768, DBI-0735191, DGE-1650604

Files

Files (9.2 MB)

Name Size Download all
md5:60efff13bd49e740ef681ad4cdbc28df
5.3 MB Download
md5:9910d179844f38ae67c7fbebe5cf1d51
3.9 MB Download

Additional details

Related works

Is cited by
10.1111/ele.13269 (DOI)