Host development times and survival across temperatures and community contexts without parasitoids
In the absence of parasitoids, warming and competition levels altered mean host development times by up to four days (30%) (Fig. S1, Fig. S2). On average, shortening of developmental time due to warming was more pronounced (Mean = -2 ± 0.2 days) than its extension due to increased competition (Mean = +1.2 ± 0.2 days); and the changes were consistent in direction for all species combinations (Table S1). Survival rates were always highest in 24°C and low competition treatments across all host species combinations, but species responses to warming and competition varied (Fig. S3, Table S2 & Table S3). For example, D. birchii survival (Post hoc odds ratio (OR) = 7.54, P < 0.001) declined significantly more in elevated temperatures than D. sulfurigaster (OR = 2.17, P = 0.002) (Fig. S3).