Genomic demography predicts community dynamics in a temperate Montane forest

Species population sizes fluctuate over time, and these temporal dynamics play a key role in maintaining biodiversity. While multiple modeling approaches have been developed to characterize fluctuations in forest tree species abundances, the data required to parametrize these models from scratch are substantial. Here we introduce a novel approach to modeling population fluctuations on decadal timescales by relating community-level dynamics to population-level patterns encoded in plant genomes. Using a single genomic snapshot to generate contemporary effective population size estimates in a temperate montane forest, we accurately predict fluctuations across three censuses. Our approach opens the door for the use of genomic demography to parametrize multispecies community models in ecology and shows that population genomic data can provide accurate predictions for ecological dynamics., , # Genomic demography predicts community dynamics in a temperate Montane forest

Dataset DOI: [10.5061/dryad.9w0vt4bsx](10.5061/dryad.9w0vt4bsx)

## Description of the data and file structure

SNPs in VCF format for 8 species of trees from the Wind River Forest Dynamics plot in Southwestern Washington, USA.

### Files and variables

#### File: WFDP\_SNPS.zip

**Description:** We have submitted the population  SNPs.vcf (Variant Call Format) file from the de novo assembly performed using the STACK software.

This file is the primary dataset utilized for the various analyses described in our article, \"Genomic Demography Predicts Community Dynamics in a Temperate Montane Forest.\"

The article investigates the application of genetic estimates of effective population size to predict population fluctuations given a community mean field model.

**Description of the data and file structure**

**Dataset Overview**

This Variant Call Format (VCF) file contains Single Nucleotide Polymorphism (SNP) d...,