Data from: Evidence of spatial synchrony in the spread of an invasive forest pest
Data files
May 02, 2025 version files 590.86 KB
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af_spread_climate.csv
212.81 KB
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clim.indices.mwp.spring.csv
683 B
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clim.indices.mws.winter.csv
856 B
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clim.indices.sup.spring.csv
817 B
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cup_spread_climate.csv
99.44 KB
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mwp_spread_climate.csv
90.52 KB
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mws_spread_climate.csv
41.54 KB
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README.md
4.07 KB
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sup_spread_climate.csv
140.13 KB
Abstract
Because population growth is a key component of range expansion, spatial synchrony in population growth along a species’ range edge may lead to spatial synchrony in range expansion. However, demographic stochasticity in low-density range-edge populations and stochastic long-distance dispersal may disrupt the synchronization of range expansion. Here, we investigate whether rates of spread by an invasive species, the spongy moth, exhibit spatial synchrony. We also evaluate if climatic oscillations at multi-annual timescales arising from teleconnections synchronize spread at similar timescales. We applied extensions of wavelet analysis to spatiotemporal data on climate variables and range-edge abundances during 1990-2020. Synchrony in spread occurred throughout the entire study area, and in the northernmost and southernmost ecoregions, synchrony in spread was explained by multi-annual climate oscillations linked to teleconnection patterns. We demonstrate spatial synchrony in invasive spread and find an opportunity to predict the timing of pulses of invasive spread at regional scales.
https://doi.org/10.5061/dryad.v6wwpzh56
Description of the data and file structure
Description of files for "Evidence of spatial synchrony in the spread of an invasive forest pest":
There are 8 data files in this dataset:
- five files, one per ecoregion, each containing spread rate and climate variable data (e.g., af_spread_climate.csv)
- three files are manipulated climate index data (teleconnection) (e.g., clim.indices.sup.spring.csv)
Files and variables
Files: sup_spread_climate.csv; af_spread_climate.csv; cup_spread_climate.csv; mwp_spread_climate.csv; mws_spread_climate.csv
Description: These documents are the spread rates and associated climate variables for the five ecoregions studied in the associated manuscript. The years of data vary by ecoregion.
Southeastern USA Plains (SUP) (1990-2020); Appalachian Forest (AF) (1990-2020); Central USA Plains (1996-2020); Mixed Wood Plains (MWP) (1997-2020); Mixed Wood Shield (1998-2020)
Variables:
- bearing2: transect number, used as a unique identifier
- year_t: year
- spread_rate: rate of spongy moth spread (km/year)
- snow_depth: wintertime snow depth (mm)
- tmin: wintertime minimum temperature (deg C)
- tmean: larval period (springtime) mean temperature (deg C)
- ppt: precipitation (mm)
File: clim.indices.mws.winter.csv
Description: Wintertime (December-February) averaged climate index values for 2000-2020.
Variables:
- year: year of the averaged index value
- nao.winter.mean: Average North Atlantic Oscillation (NAO) value for December-February across 20 years (2000-2020). Data from https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.shtml
- pdo.winter.mean: Average Pacific Decadal Oscillation (PDO ) value for December-February across 20 years (2000-2020). Data from https://www.ncei.noaa.gov/node/6696
- enso.winter.mean: Average Multivariate El Niño/Southern Oscillation Index (MEI) value for December-February across 20 years (2000-2020). Data from https://www.esrl.noaa.gov/psd/enso/mei
File: clim.indices.sup.spring.csv
Description: Springtime (i.e., larval period) averaged climate index values for 1993-2020.
Variables:
- year: year of the averaged index value
- nao.spring.mean: Average North Atlantic Oscillation (NAO) value for March-June across 27 years (1993-2020). Data from https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.shtml
- pdo.spring.mean: Average Pacific Decadal Oscillation (PDO ) value for March-June across 27 years (1993-2020). Data from https://www.ncei.noaa.gov/node/6696
- enso.spring.mean: Average Multivariate El Niño/Southern Oscillation Index (MEI) value for March-June across 27 years (1993-2020). Data from https://www.esrl.noaa.gov/psd/enso/mei
File: clim.indices.mwp.spring.csv
Description: Springtime (i.e., larval period) averaged climate index values for 1999-2020.
Variables:
- year: year of the averaged index value
- nao.spring.mean: Average North Atlantic Oscillation (NAO) value for April-July across 21 years (1999-2020). Data from https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.shtml
- pdo.spring.mean: Average Pacific Decadal Oscillation (PDO ) value for April-July across 21 years (1999-2020). Data from https://www.ncei.noaa.gov/node/6696
- enso.spring.mean: Average Multivariate El Niño/Southern Oscillation Index (MEI) value for April-July across 21 years (1999-2020). Data from https://www.esrl.noaa.gov/psd/enso/mei