Skip to main content

Advertisement

Table 1 Descriptive information on nine study ponds along a pH gradient.

From: Adaptive divergence of the moor frog (Rana arvalis) along an acidification gradient

Population A) B) C) D) E) F) G) H) I) J) K)
Tottajärn 100 7 57°60N, 12°60E 141 40 4.0 ± 0.2 Natural & human 15.5 6.0 0.2 462683
Lomsjön 50 11 57°76N, 12°88E 268 20 4.0 ± 0.2 Natural & human 14.6 14.2 0.7 284400
Sätila 45 6 57°51N, 12°34E 94 30 4.1 ± 0.2 Natural & human 15.1 9.7 0.1 263647
Kungsbacka 80 8 57°50N, 12°06E 46 60 4.9 ± 0.2 Natural & human 17.0 10.2 0.2 65120
Nitta* > 500   57°87N, 13°21E 240 70 5.7 ± 0.3 Unknown 14.2 2.0 5.7 286853
Viskafors 270 6 57°65N, 12°87E 146 60 5.6 ± 0.3 Indirect liming 14.4 6.1 1.4 754776
Bergsjön > 500 10 58°20N, 13°48E 310 10 6.1 ± 0.3 Unknown 14.8 4.7 8.6 7221305
Stubberud 250 9 58°46N, 13°76E 281 40 7.3 ± 0.2 Limestone area 14.8 7.0 2.9 34128
Rud 300 10 58°59N, 13°76E 88 30 7.0 ± 0.2 Limestone area 15.4 6.5 2.2 267701
  1. The A) approximate numbers of breeding R. arvalis females, B) number of full-sib families used per population, C) coordinates (N, E), D) altitude (m), E) forest canopy closure (%), F) mean ± SD pond pH, G) likely acidification history, H) average temperature (°C) during March - July 2009, I) predator density (per five sweeps), J) amphibian larval density (per five sweeps), and K) pond size (m3). Number of breeding females is based on clutch counts in 2007-2009. *Study site was only used for environmental information. Pond pH is based on averages of three sites within each pond in April 2008 and April, May and June in 2009.