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Table 2 Isolation by distance within the North Atlantic cluster (NAt). Three different scales defined from the latitudinal subdivision of the global range in two (Medium scale) and in three (Small scale) parts were analysed. See Figure 1 for the delimitations of the NAt subdivisions.

From: Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters

Scale n Mean (max) marine distance (km) Slope ± SE Intercept ± SE p-Value 2 (1/slope)
Global: 654 1523.8 (4393.2) 0.0037 ± 0.0015 0.0011 ± 0.0148 0.002 270.3
Medium:       
NAt-2A 289 824.4 (2639.9) 0.0080 ± 0.0025 -0.0566 ± 0.0293 0.001 125.0
NAt-2B 365 1171.1 (2901.1) 0.0028 ± 0.0018 0.0153 ± 0.0154 0.024 357.1
Small:       
NAt-3A 210 616.8 (1614.0) 0.0100 ± 0.0031 -0.0867 ± 0.0347 < 0.001 100.0
NAt-3B 141 713.3 (2029.1) 0.0025 ± 0.0025 0.0244 ± 0.0292 0.204 400.0
NAt-3C 303 1100.0 (2901.1) 0.0030 ± 0.0020 0.0167 ± 0.0174 0.043 333.3