<p> 1 Supporting Information</p><p>2 The effects of mite parasitism on the reproduction and survival of the Taiwan field mice </p><p>3 (Apodemus semotus)</p><p>4 Jhan-Wei Lin, Hsuan-Yi Lo, Hsi-Chieh Wang and Pei-Jen Lee Shaner*</p><p>5</p><p>6 Fig. S1. Estimation of Trombiculid mite abundance on their mouse host Apodemus </p><p>7 semotus. (a) The larvae of Trombiculid mites (the white spots) attached themselves to the </p><p>8 ear of an mouss. Based on the 2012 survey (June-September, 2012) where a total of 32 </p><p>9 adult A. semotus were placed under anesthesia for a complete count of the number of </p><p>10 mites attached to their ear and genital regions, (b) the mite count positively correlates </p><p>11 with mite abundance index (the index has 4 abundance levels: 0 = zero mite, 1 = 1-9 </p><p>12 mites, 2 = 10-19 mites, 3 = 20 mites or more). (c) The frequency distribution of the mite </p><p>13 counts from the 2012 survey indicates 91% (29 out of 32) of the mice had a mite count </p><p>14 between 0 and 29 (0, 1-9, 10-19, 20-29), suggesting the mite abundance index captured </p><p>15 most of the variation in mite count. 16 17 Table S1. The generalized linear mixed model of Apodemus semotus reproduction as a </p><p>18 function of sex and age.</p><p>Effect Num DF Den DF F P</p><p>Sex 1 95 0.25 0.62</p><p>Age 2 95 0.52 0.60</p><p>Sex × age 2 95 0.52 0.60</p><p>19 The reproduction is trated as a binomial variable (whether a male has descended testicles </p><p>20 or a female has perforated vagina, is pregnant or lactating). This analysis included 36 </p><p>21 unique individuals (24 males and 12 females) that were known to have survived at least 4</p><p>22 months as adults from the 2010-2011 survey. All individuals were first captured as adults,</p><p>23 meaning they were at least one month old. Therefore, we assigned age = 1 month upon </p><p>24 their first capture, and age = 3 months and 5 months upon their next 2 consecutive </p><p>25 recaptures. </p>