Skip to main content

Table 1 Parameter estimates (median and 95% Credible Intervals [CI]) for the analysis comparing movement differences between adult female, adult male, and sub-adult polar bears in the Chukchi Sea subpopulation

From: Intrapopulation differences in polar bear movement and step selection patterns

Variable

Class

Adult female

Adult male

Sub-adult

Median

95% CI

Median

95% CI

Median

95% CI

κ

1.79

1.68–1.90

1.76

1.57–1.96

1.77

1.55–2.01

γ

67,288

62,947–71,962

79,025

71,078–87,080

69,079

59,966–78,667

Step length

59,864

56,012–64,014

70,396

63,361–77,512

61,532

53,486–70,000

ρ

0.248

0.200–0.296

0.159

0.066–0.243

0.212

0.096–0.325

  1. The κ (i.e., shape) and γ (i.e., scale) parameters are for the Weibull distribution component of the model, whereas ρ is for the wrapped Cauchy distribution component of the model. The mean expected step length (m \()\) is derived from the Weibull distribution parameters (i.e., step length = γΓ(1 + 1/\(\kappa\)), where Γ is the log gamma function)
Back to article page

Movement Ecology

ISSN: 2051-3933