. 2019 Mar 5;7:e6479. doi: 10.7717/peerj.6479

Table 2. The determination coefficients (R²) for relationships between climatic variables and the invasive plant expansion potential in ecoregions.

Code	RCP 4.5-R²		RCP 8.5-R²
Code	Bio1	Bio4	Bio1	Bio4
BF	0.0044^ns	0.0066^ns	0.0258^ns	0.0051^ns
DXS	0.0056^ns	0.0142^ns	0.0022^ns	0.0695*
FGS	0.0155^ns	0.1448^ns	0.1051^ns	0.3650**
IW	0.0891^ns	0.5629^ns	0.3691^ns	0.4882^ns
MG	0.0004^ns	0.0001^ns	0.0490^ns	0.0012^ns
MFWS	0.0046^ns	0.0037^ns	0.0043^ns	0.0030^ns
MGS	0.0084^ns	0.1486**	0.0094^ns	0.2255***
RI	0.9939*	0.9904^ns	0.9967*	0.9376^ns
TBMF	0.2116***	0.0503*	0.3128***	0.1067***
TCF	0.0151^ns	0.2061**	0.0205^ns	0.2395***
TGSS	0.4035***	0.0018^ns	0.4271***	0.0070^ns
TSCF	0.2494*	0.0026^ns	0.1143^ns	0.0118^ns
TSDBF	0.0000^ns	0.0150^ns	0.0116^ns	0.0377^ns
TSGSS	0.0331^ns	0.0019^ns	0.0364^ns	0.0045^ns
TSMBF	0.0113^ns	0.0261*	0.0012^ns	0.0027^ns
TD	0.0007^ns	0.0124^ns	0.0109^ns	0.0757^ns
LL	0.1231^ns	0.3633*	0.1642^ns	0.3118*
LRD	0.0427^ns	0.1688^ns	0.0107^ns	0.2217^ns
MF	0.0058^ns	0.0003^ns	0.0079^ns	0.0475^ns
OI	0.0533^ns	0.0245^ns	0.0903^ns	0.0332^ns
PF	0.1700^ns	0.0978^ns	0.1427^ns	0.1040^ns
TCR	0.0182^ns	0.0292^ns	0.0038^ns	0.0597^ns
TFRW	0.0872^ns	0.0875^ns	0.0066^ns	0.0406^ns
TUR	0.0012^ns	0.0388^ns	0.0938^ns	0.0233^ns
TSCR	0.0267^ns	0.0387^ns	0.0022^ns	0.0009^ns
TSFRWC	0.0011^ns	0.1550**	0.1976*	0.0395^ns
TSUR	0.0314^ns	0.3912***	0.0140^ns	0.5492***
XFEB	0.0742*	0.0429^ns	0.0275^ns	0.0910*

Notes:

Bio1 represents annual mean temperature; Bio4 represents temperature seasonality. Abbreviations used in this figure are defined as follows: BF, boreal forests/taiga; DXS, deserts and xeric shrublands; FGS, flooded grasslands and savannas; IW, inland water; MG, mangroves; MFWS, Mediterranean forests, woodlands and scrub; MGS, montane grasslands and shrublands; RI, rock and ice; TBMF, temperate broadleaf and mixed forests; TCF, temperate conifer forests; TGSS, temperate grasslands, savannas and shrublands; TSCF, tropical and subtropical coniferous forests; TSDBF, tropical and subtropical dry broadleaf forests; TSGSS, tropical and subtropical grasslands, savannas and shrublands; TSMBF, tropical and subtropical moist broadleaf forests; TD, tundra. For freshwater ecoregions: LL, large lakes; LRD, large river deltas; MF, montane freshwaters; OI, oceanic islands; PF, polar freshwaters; TCR, temperate coastal rivers; TFRW, temperate floodplain rivers and wetlands; TUR, temperate upland rivers; TSCR, tropical and subtropical coastal rivers; TSFRWC, tropical and subtropical floodplain rivers and wetland complexes; TSUR, tropical and subtropical upland rivers; XFEB, xeric freshwaters and endorheic (closed) basins.

P < 0.05*.

^**

P < 0.01.

^***

P < 0.001.

^ns

P > 0.05.

Table 2. The determination coefficients (R2) for relationships between climatic variables and the invasive plant expansion potential in ecoregions.

Table 2. The determination coefficients (R²) for relationships between climatic variables and the invasive plant expansion potential in ecoregions.