RATL: A Database of Reptile and Amphibian Toxicology Literature

Table 6 - pH Studies - 19
Species
Code b
Lifestage Study
Endpoint g
pH Level(s)
Temp h Additional
Contam a
Cont.
Conc.
Conc.
e
Units
e
LC50 LC100 e
Effects eg
Reference k
NOVV adult PHYSIO 3-5 Na efflux rate constant was not affected by
pH. Efflux was generally greater under
aquatic than terrestrial conditions and for
efts than for adults. In aquatic setting, both
adults and efts were able to maintain Na
balance at pH 5.
Frisbie and Wyman 1992
PLCI adult POPSUR 3.7 50.8 % quadrats with pH < 3.8 contained a Wyman and Hawsleysalamander;
juveniles never found on soil
with pH < 3.7.
Lescault 1987 k
PLCI adult BEHAV 2.0-6.5 8-10 Animals given substrate choice were found Wyman and Hawsley-
50 % of the time on pH 6.0 - 6.5. Animals
held on substrates pH 2.0 - 2.5 died within 1
wk; those on pH 3-6 survived. During 8
month exposure expt, 40 % of animals on
pH 3 died within 4 months, all others
survived.
Lescault 1987 k
PLCI adult PHYSIO 3-5 At pH 3, body Na conc. and body water
content were reduced when compared to pH
5 and control salamanders.
Frisbie and Wyman 1995
PLCI adult PHYSIO 3-5 Effects of acid rain conditions were
determined in a controlled environment for
ion balance in PLCI.
Frisbie and Wyman 1994
PLCI adult PHYSIO 3.0-6.0 In the laboratory, animals exposed to low
pH exhibited elevated Na efflux rate
constants. Animals maintained on acidic
substrate for 14 d had reduced body Na and
body water levels and lost mass more than
salamanders maintained on substrate of
higher pH.
Frisbie and Wyman 1991
PLCI adult PHYSIO 3-5 Na efflux rate constant was not affected by
pH. Efflux was generally greater under
aquatic than terrestrial conditions and for
efts than for adults. In aquatic setting, both
adults and efts were able to maintain Na
balance at pH 5.
Frisbie and Wyman 1992
PLCI adult POPSUR 3.9-6.3 PLCI presence affected by soil pH. Wyman 1988
PLCI adult POPSUR The mode of distribution drops off sharply
at low soil pH. Occurred infrequently on soils
of higher pH. Field distribution suggested an
avoidance of acidic conditions.
Wyman and Jancola 1992
PSCR adult POPSUR 4.44-6.63 Did not occur in ponds with pH > 5.0.
Clark 1986 k