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

Table 1 Descriptive information on nine study ponds along a pH 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

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.

ISSN: 2730-7182