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Fig. 5 | Animal Biotelemetry

Fig. 5

From: Evaluating GPS biologging technology for studying spatial ecology of large constricting snakes

Fig. 5

GPS fix rate versus vegetation density. Model predictions from the GLMM relating fix rate to enhanced vegetation index (EVI), and bootstrapped 95% confidence envelope. Fix rate declines beginning at EVIs ≈ 4000 falls to near 0% at the maximum EVI of 10,000; however, the range of values actually observed in Everglades National Park was from 1 to 9622 (light gray shading). The observed mean fix rate for all pythons deployed was 0.181 (red dashed line). We attribute the discrepancy between predicted and observed fix rate to microhabitat selection by pythons, i.e., pythons spending time underground or underwater and thus exhibiting lower fix rates than predicted by vegetation alone

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