Journal of Biogeography
SUPPORTING INFORMATION
Latitudinal shift in thermal niche breadth results from relaxed selection on heat tolerance during a climate-mediated
range expansion
Lesley T. Lancaster, Rachael Y. Dudaniec, Bengt Hansson and Erik I. Svensson
Appendix S2 Habitat suitability model environmental layers and references.
We constructed a Maxent species distribution model for Ischnura elegans in Fennoscandia (see main text for more details).
Prior to analysis, all environmental layers listed below were clipped to the shape of Fennoscandia (political boundaries of
Sweden + Finland + Norway) and sampled at a 1 km resolution.
The following table provides the sources and references for the environmental layers used in the niche model construction.
Layer
Source
Bioclim climate http://www.wor
variables
ldclim.org/biocli
m
Elevation
Content
1 = mean annual temperature; 2 = mean diurnal
temeprature range; 3 = isothermality; 4 = temperature
seasonality; 5 = maximum temperature of the warmest
month; 8 = mean temperature of the wettest quarter; 10 =
mean temperature of the warmest quarter; 12 = annual
precipitation; 15 = precipitation seasonality
Reference
Hijmans et
al. (2005)
http://topotools. US Geological Survey (USGS) GMTED2010 30 arcsecond
cr.usgs.gov/gmte elevation layer (m)
d_viewer/
http://www.wor Terrestrial Ecoregions of the World (TEOW)
ldwildlife.org/pu
blications/terres
trial-ecoregionsof-the-world
Danielson
& Gesch
(2011)
Olson et al.
(2001)
Distance from
the coast
http://oceancolo NASA global distances from nearest coastline (km)
r.gsfc.nasa.gov/D
OCS/DistFromCo
ast/
Stumpf &
Kuring
(2009)
Tree cover
http://glcf.umd.e 1-km tree cover, continuous fields
du/data/treecov
er/index.shtml
http://eusoils.jrc European soils database PARMADO layer, 1-km resloution
.ec.europa.eu/
Defries et
al. (2000)
Terrestrial
ecoregion
Soil parent
material
European
Soil
Database
V2.0
Land cover
Mean summer
greenness
Variation in
summer
greennnes
Net primary
productivity
http://due.esrin. GlobCover, 2009
esa.int/globcover
/
http://edit.csic.e Mean July normalized difference vegetation index (NDVI),
s/Soil1982–2000
VegetationLandCover.html
http://edit.csic.e Standard deviation of July NDVI, 1982–2000
s/SoilVegetationLandCover.html
http://sedac.cies NASA global patterns in net primary productivity v1
in.columbia.edu/
data/set/hanppnet-primaryproductivity
Arino et al.
(2010)
EditGeoplatfor
m (2008)
EditGeoplatfor
m (2008)
Imhoff et
al. (2004)
REFERENCES
Arino, O., Ramos Perez, J.J., Kalgirou, V., Bontemps, S., Defourny, P., & Van Bogaert, E. (2012) Global land cover map for 2009
(GlobCover 2009). © European Space Agency (ESA) and Université Catholique de Louvain (UCL), doi:
10.1594/PANGAEA.787668.
Danielson, J.J. & Gesch, D.B. (2011) Global multi-resolution terrain elevation data 2010 (GMTED2010). US Geological Survey
Open-file Report 2011–1073. U.S. Geological Survey, Reston, Virginia, U.S.A.
Defries, R., Hansen, M., Townshend, J.R.G., Janetos, A.C. & Loveland, T.R. (2000) 1 kilometer tree cover continuous fields v1.0.
Department of Geography, University of Maryland, College Park, MD, U.S.A..
Edit-Geoplatform (2008) Gis layers for the analysis of environmental completeness of biodiversity data. Available at:
http://edit.csic.es/Soil-Vegetation-LandCover.html.
Panagos, P. (2006) The European Soil Database V2.0. European Comission and the European Soil Bureau Network, Ispra, Italy.
http://eusoils.jrc.ec.europa.eu/ESDB_Archive/ESDB_data_1k_raster_intro/ESDB_1k_raster_data_intro.html.
Hijmans, R.J., Cameron, S.E., Parra, J.L., Jones, P.G. & Jarvis, A. (2005) Very high resolution interpolated climate survaces for
global land areas. International Journal of Climatology, 25, 1965–1978.
Imhoff, M.L., Bounoua, L., Ricketts, T., Loucks, C., Harriss, R. & Lawrence, W.T. (2004) Hanpp collection: global patterns in net
primary productivity (npp). NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY.
Olson, D.M., Dinerstein, E., Wikramanayake, E.D., Burgess, N.D., Powell, G.V.N., Underwood, E.C., D'Amico, J.A., Itoua, I., Strand,
H.E., Morrison, J.C., Loucks, C.J., Allnut, T.F., Ricketts, T.H., Kura, Y., Lamoreux, J.F., Wettengel, W.W., Hedao, P. & Kassem,
K.R. (2001) Terrestrial ecoregions of the world: a new map of life on Earth. Bioscience, 51, 933–938.
Stumpf, R. & Kuring, N. (2009) GMT Intermediate distance from coast. NASA Ocean Biology Processing Group, Greenbelt, MD,
U.S.A.. http://oceancolor.gsfc.nasa.gov/DOCS/DistFromCoast/