The Influence of Abiotic Factors on an Invasive Pest of Pulse Crops, Sitona lineatus (L.) (Coleoptera: Curculionidae), in North America

Table 3

Effect of changes in temperature and precipitation from current climate on Ecoclimatic Index (EI) values for Sitona lineatus across all locations within the Prairie Ecosystem (𝑛=3420 grid cells). The values are expressed as a percentage of total geographic area.

Variable	Scenario	EI≥10	EI≥15	EI≥20
	Current climate	85.7%	51.1%	13.5%
Temperature	−2°C	79.9%	20.5%	0.1%
Temperature	−1°C	86.3%	37.9%	3.9%
Temperature	+1°C	82.3%	54.7%	17.0%
Temperature	+2°C	78.8%	51.2%	15.8%
Precipitation	−40%	2.8%	0.0%	0.0%
Precipitation	−20%	52.3%	10.4%	0.2%
Precipitation	+20%	98.4%	81.5%	32.4%
Precipitation	+40%	99.8%	93.7%	47.4%