DOI: 10.5061/dryad.q3b45
title: Data from: A framework for simultaneous tests of abiotic, biotic, and historical drivers of species distributions: empirical tests for North American wood warblers based on climate and pollen

description: Understanding how abiotic, biotic and historical factors shape species
 distributions remains a central question in ecology, but studies linking
 biotic factors to continental-scale patterns remain scarce. Here, we
 present a novel framework for simultaneously testing patterns expected
 when abiotic, biotic or historical factors drive species range limits. We
 use ecological niche models to produce empirical estimates of the
 "Biotic, Abiotic, and Movement" paradigm (BAM diagrams), which
 previously had only been used theoretically. Based on climatic and pollen
 data, as well as explicit consideration of dispersal limitations, we
 implement the framework for a group of North American birds (Oreothlypis
 warblers) with clear habitat associations. Because the pollen-based
 predictor variables characterize vegetation, they represent biotic factors
 needed by each bird species. Although continental-scale patterns of
 distribution traditionally are attributed to abiotic factors, only one
 species matched the hypothesis of solely abiotic drivers. In contrast,
 pollen-based models indicate biotic drivers for two species, correctly
 predicting their absence in climatically suitable areas. These results
 highlight the feasibility of considering and quantifying potential effects
 of biotic interactions on species ranges, especial when interactions can
 be decoupled from abiotic factors. Furthermore, the availability of pollen
 data now and in the Holocene highlights the potential of these data to be
 used to predict range shifts of other organisms tightly dependent on
 particular vegetation types.
description: Model Evaluation
 MetricsEvaluation metrics for
 ecological niche modelsModels Evaluation
 Metrics.zipPollen Functional Group
 LayersGIS Layers of Pollen
 Functional Groups in North AmericaPollen Functional
 Groups.zipWorldClim
 LayersGIS Layers of WorldClim
 variables in North America, derived from data available at
 . For a description of how these
 data were derived, please see the methods section of Sanín C and Anderson
 RP (2018) A framework for simultaneous tests of abiotic, biotic, and
 historical drivers of species distributions: empirical tests for North
 American wood-warblers based on climate and pollen. The American
 Naturalist. NOTE: For any use of WorldClim data, please cite the original
 publication: Hijmans, R.J., S.E. Cameron, J.L. Parra, P.G. Jones and A.
 Jarvis, 2005. Very high resolution interpolated climate surfaces for
 global land areas. International Journal of Climatology 25: 1965-1978.
 http://dx.doi.org/10.1002/joc.1276WorldClim.zipBackground CellsSpecies-specific set of background cells for Ecological Niche ModelseBird Presence CellsSet of cell for which eBird has records for a species. Dataset consulted: eBird Basic Dataset. Version: EBD_relNov-2014. Cornell Lab of Ornithology, Ithaca, New York. November 2014.eBird_Presence_Cells.zipSampling EffortGIS layer of number of eBird sampling events in the study areaSpecies Movement AreaGIS layers describing the 'movement' component of the distribution of each of the species.BAM_Ploting_FunctionR script with functions to plot BAM diagrams