Chris Beachy, Ken Cabarle, Kyna Hogg, and Bill Langer

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Life histories and behavioral ecology of
amphibians of Northwestern North Dakota
Chris Beachy, Ken Cabarle, Kyna Hogg, and Bill
Langer
Minot State University University of North
Dakota Wolford School
Larry Zavada Karen Pocha-Melby Scott
Garrett Sandy Johnson Steve Dyke Patrick
Isacson Don Sens Karen Humphreys --and an army
of amphibian catchers! (50)
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Herbicides Heavy metals Metamorphosis Spinal
cord regeneration Viral infection Limb
regeneration
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cadmium in water/soil
Amphibians are excellent biomonitors
cadmium in salamander liver
(Cabarle, Winburn and Beachy, unpubl.)
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Salamanders under stress accumulate more heavy
metals
Salamanders exposed for 75 days to 1 ppb Cd
solution (Reed and Beachy,unpubl.)
Amphibians are excellent model organisms
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TOTAL CAPTURES
Agsite 1342 (2006, 07, 08)
Simcoe 1630 (2006, 07, 08)
Wolford 1287 (2007, 08)
Totals 4259
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common
less abundant
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PIT tag Mark-recaptures
marked
Total population size

recapture
total captured
6586
84
1270
3453
?
?
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Metamorphosis of A. tigrinum
early September
late July
larval growth of A. tigrinum
hatching size 6 mm
AGSITE 91 mm/122 days or 0.75 mm/day
hatching date? 1 May
SIMCOE 70 mm/86 days or 0.81 mm/day
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entering
exiting
metamorphic size
97 mm
Agsite
A. tigrinum
Simcoe
76 mm
metamorphic size
Wolford
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entering
exiting
Agsite
Pseudacris
Simcoe
Wolford
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Pseudacris in buckets at Simcoe
entering
exiting
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