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For bumble bees, colonies (not individual workers) are the functional unit of the population. Estimates of colony density are thus critical for understanding population distribution and trends of this important pollinator group. Yet, surveys of bumble bee colonies and other taxa with sessile life cycle states rarely account for imperfect detection....
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... nests ( ) suggested that nests differed in their individual detection probabilities, with a 2 4 4 median posterior estimate for p of 0.26 (95% CRI = 0.11 to 0.37) and standard deviation (on the 2 4 5 logit scale) of 0.79 (95% CRI = 0.14 to 1.84; Fig. 1b). Similarly, a model that included There was weak evidence for different detection probabilities between the first and 2 5 2 subsequent capture occasions (Fig. 1c). Thus, nests were not more likely to be detected after their 2 5 3 initial discovery. posterior probability ...Context 2
... detection probabilities, with a 2 4 4 median posterior estimate for p of 0.26 (95% CRI = 0.11 to 0.37) and standard deviation (on the 2 4 5 logit scale) of 0.79 (95% CRI = 0.14 to 1.84; Fig. 1b). Similarly, a model that included There was weak evidence for different detection probabilities between the first and 2 5 2 subsequent capture occasions (Fig. 1c). Thus, nests were not more likely to be detected after their 2 5 3 initial discovery. posterior probability ...Context 3
... temperature during the survey (standardized effect of air temperature from = -0.38; 2 6 6 95% CRI = -0.69 to -0.09; Fig. ...Context 4
... relative to other models. This reflects two important features of individual heterogeneity: 1) a fraction of nests have 2 8 0 extremely low detection probabilities and it is difficult to estimate how many remained 2 8 1 undetected, and 2) the existing amount of heterogeneity is difficult to estimate, especially with 2 8 2 low sample sizes (see Fig. 1b). 2 ...Similar publications
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