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2004 - Squirrel Declines and Camp Expansions
Squirrel WorkshopNovember 20-21, 2004
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Cone Abundance
0
50
100
150
200
250
300
350
400
1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
year
avg
num
ber p
er tr
ee
KLLLSU
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Spring Densities
0.00
1.00
2.00
3.00
4.00
5.00
6.00
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
indi
vidu
als/
ha
SUKLLLAG
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Fall Densities
0.00
1.00
2.00
3.00
4.00
5.00
6.00
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
indi
vidu
als/
ha
SUKLLLAG
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Overwinter Survival
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003
prop
ortio
n su
rviv
ing
SU adultsSU juvsKL adultsKL juvs
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May Females
0
20
40
60
80
100
120
1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
num
ber o
f fem
ales
SUKLAG
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Breeding Females
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
prop
ortio
n of
fem
ales
bre
edin
g
SUKLLLAG
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Age of Breeding Females
1
1.5
2
2.5
3
3.5
4
4.5
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
aver
age
age
SUKLLLAG
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Yearly Julian Birthdates of 1st Litters
0
20
40
60
80
100
120
140
160
180
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
aver
age
Julia
n da
te
SUKLLLAG
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Litter Sizes
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
aver
age
litte
r siz
e
SUKLLLAG
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Daily Growth Rates
0.00
0.50
1.00
1.50
2.00
2.50
3.00
1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
daily
gro
wth
(g/d
ay)
SUKLLLAG
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Emerging Juveniles
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
prop
ortio
n of
juve
nile
s
SUKLLLAG
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Yearly Core Data Collected
• Trapping– March-August; December (not 98, 03)– Weights, reproductive conditions
• Behaviour– SU territory mapping (A-J, 1-10)– Focals (10 breeding females,once/week, 1 obs
every 30 sec for 10 min)– Bequeathal information– Casual observations
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• Nests– Parturition dates– Growth rates– Genetic samples– Sex ratio– Nest locations and types
• Middens– Ownership census (May, August)– Condition, defense, activity
Yearly Core Data Collected
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• Other– Cones– Buds– Mushrooms
• Files– Trapping– Behaviour– Juv– Midden– Admums– Flastall
Yearly Core Data Collected
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Costs To Run Squirrel Camp
• Salaries– $2200/month x 2 months x 2 people = $ 8,800– $2000/month x 4 months x 4 people = $32,000
• Food & Accommodation– $200/month x 2 months x 2 people = $ 800– $200/month x 4 months x 4 people = $ 3,200
• Vehicle Fuel, Maintenance and Repairs = $ 6,500• Airfare to/from Whitehorse = $ 1,500
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• Equipment Purchases and Repairs– Refurbish 60 collars = $ 3,650– Purchase 15 collars = $ 2,875– Repair and service 7 receivers = $ 900
• Miscellaneous – Satellite phone = $ 280– Trapping kits = $ 260– Peanut butter = $ 200– Other = $ 400
Total cost for 4 person crew for 1 year = $61,165
Costs To Run Squirrel Camp