TABLE 1 in Wing reduction and body size variation along a steep elevation gradient: a case study with Magellanic sub-Antarctic mayflies and stoneflies

TABLE 1 Predictor estimates obtained by generalized additive models (GAMs) for morphological features (WL = wing length, BL = body length, RWL = relative wing length) of sub-Antarctic mayfly and stonefly species.
EphemeropteraWL EstimateStd. Errort valuePr(>|t|)BL EstimateStd. Errort valuePr(>|t|)RWL EstimateStd. Errort valuePr(>| t|)Intercept7.6060.3521.873***6.3960.33419.159***1.1960.04327.698***Elevation−0.3810.140−2.734**0.0250.1340.188ns−0.0650.017−3.754***Andesiops torrens−1.5310.383−4.001***−1.3550.367−3.689***0.0100.0480.216nsMassartelopsis irarrazavali1.0030.4472.242*0.7340.4301.708−0.0030.030.054nsMeridialaris chiloeensis1.0370.3862.685**1.0110.3712.725**−0.0320.020.662nsMetamonius anceps4.9030.5508.912***2.9660.5285.616***0.0640.030.936nsSex−0.2380.110−2.167*−0.1460.105−1.385ns−0.0170.011.222nsAdjusted r 20.8470.8770.335Deviance85.20%88.10%35.50%WLBLRWLPlecopteraEstimateStd. Errort valuePr(>|t|)EstimateStd. Errort valuePr(>| t|)EstimateStd. Errort valuePr(>| t|)Intercept8.0620.31125.891***5.4140.33716.089***1.4320.07419.430***Elevation0.0880.0980.895ns0.7490.1067.043***−0.1080.023−4.630***Limnoperla jaffueli−0.3000.334−0.897ns−0.2090.361−0.579ns0.0440.0790.550nsRhithroperla rossi−0.5260.346−1.520ns0.0630.3740.168ns−0.0540.082−0.659nsSenzilloides panguipulli2.3550.3816.188***1.4290.4113.475***0.0070.0900.077nsUdamocercia antarctica0.2180.5570.392ns−0.0630.602−0.104ns0.0780.1320.592nsSex−0.4030.09−5.43***−0.1080.091−1.184ns−0.0490.020−2.465*Adjusted r 20.8580.8380.409Deviance86.50%84.60%43.60%