The effects of forest management upon
amphibians, reptiles, and small mammals
within MOFEP
Purpose
Evaluate the effects of even-aged, uneven-aged, and no-
harvest forest management strategies upon the species
composition and abundance of amphibians, reptiles, and small
mammals on MOFEP study sites.
This species is in a family of salamanders without lungs. It lives in the ground, under rocks , and in and under logs. There could be as many as 11,000 per acre in the forest.
What is it?
Southern Red-backed Salamander
Have we seen any changes in species composition?
No.
Spring AMMA Occurrence, ELT 18Solid symbols = mean; open symbols = range
-6
-4
-2
0
2
4
1998 1999 2000 2001 2008
Cha
nge
From
Pre
-Tre
atm
ent
Arr
ays
per S
ite
NH
UA
EA
Spring EULU Occurrence, ELT 18Solid symbols = mean; open symbols = range
-3
-2
-1
0
1
2
3
4
1998 1999 2000 2001 2008
Cha
nge
From
Pre
-Tre
atm
ent
Arr
ays
per S
ite
NH
UA
EA
Spring DIPU Occurrence, ELT 18Solid symbols = mean; open symbols = range
-3
-2
-1
0
1
2
3
4
5
6
1998 1999 2000 2001 2008
Cha
nge
From
Pre
-Tre
atm
ent
Arr
ays
per S
ite
NH
UA
EA
This lizard species lives within 62 square yards, or about one-hundredth of an acre, on the forest floor.
What is it?
Little Brown Skink
Have we observed any changes in abundance?
Very few.
Total Spring Captures, All Objective 1 Arrays .
0
400
800
1200
1600
1992 1993 1994 1995 1998 1999 2000 2001 2008
Year
Cap
ture
s Amphibians - ELT 17Amphibians - ELT 18Reptiles - ELT 17Reptiles - ELT 18
Harvested 1996
Spring Amphibian Capture Rates, ELT 18Solid symbols = mean; open symbols = range
-20
-10
0
10
20
30
1998 1999 2000 2001 2008
Cha
nge
From
Pre
-Tre
atm
ent
Cap
ture
s/10
0TN
NH
UA
EA
Spring Reptile Capture Rates, ELT 18Solid symbols = mean; open symbols = range
-10
0
10
20
1998 1999 2000 2001 2008
Cha
nge
From
Pre
-Tre
atm
ent
Cap
ture
s/10
0TN
NH
UA
EA
Spring AMMA Capture Rates, ELT 18Solid symbols = mean; open symbols = range
-6
-4
-2
0
2
4
1998 1999 2000 2001 2008
Cha
nge
From
Pre
-Tre
atm
ent
Cap
ture
s/10
0TN
NH
UA
EA
Spring BUAM Capture Rates, ELT 17Solid symbols = mean; open symbols = range
-5.5
-4.5
-3.5
-2.5
-1.5
-0.5
0.5
1998 1999 2000 2001 2008
Cha
nge
From
Pre
-Tre
atm
ent
Cap
ture
s/10
0TN
NH
UA
EA
Spring EUFA Capture Rates, ELT 18Solid symbols = mean; open symbols = range
-1.5
0
1.5
3
1998 1999 2000 2001 2008
Cha
nge
From
Pre
-Tre
atm
ent
Cap
ture
s/10
0TN
NH
UA
EA
0
10
20
30
40
50
60
No-HarvestEven-agedUneven-aged
Mea
n N
umbe
r of I
ndiv
idua
l Peromyscus
spp.
Mic
e
94/95 1998 1999 2000 2001
Conclusions thus far
With only the disturbance from the 1996 harvest, we have
not been able to detect a large-scale impact of forest
management upon most amphibians and reptiles on MOFEP
sites.
Climate appears to play a large role in observed trends in
abundance for most amphibians and some reptiles.
Small mammal abundance did seem to be impacted by
forest management because a natural decline observed on
no-harvest sites was not observed on even-aged management
sites.
Future Plans
Sample amphibian, reptile, and small mammal
communities in 2009 and 2010. Sample amphibian, reptile, and small mammal
communities in 2012-2014 following the 2011 harvest. Integrate results with other subproject results so
that a more encompassing picture is derived about
what happens with forest management.