current state of knowledge of calving grounds
DESCRIPTION
Current state of knowledge of calving grounds . Amount of information Shifts in location Habitat diversity . ?. ?. ?. ?. ?. Amount of Information . 20% Analyzed. 50% unknown. 30% Mapped. Patterns of use. Non-directional shift. Directional shift. BAH , LRH, GRH PCH. - PowerPoint PPT PresentationTRANSCRIPT
Current state of knowledge of calving grounds
Amount of information Shifts in location Habitat diversity
?
?
??
?
Amount of Information
50%unknown
20% Analyzed
30%Mapped
Patterns of use
Directional shift Non-directional shiftWAH, TLH, BEV, AHI QMH, TAI
BAH, LRH, GRHPCH
CAH
Calving distribution map from Gunn et al. 2008Bathurst herd, Canada
1982 to 1987
1974 to 1980
1991-19992000-20032005-2009
2010
George River herd, Canada
Meerdink, S. and Petrov, A. 2012. Taimyr wild reindeer spatial fidelity and calving grounds dynamics in a changing climate. ARCSES working paper 001-2012. University of Northern Iowa, IA
Taimyr wild reindeer. Russia
Habitat diversity
Cumulative growing degree days
WAH TLH CAH PCH CBH BNW BNE BAH AHI BEV QAM LRH GRH KAN AKI ICE TAI LEN YAN SUN CHO0
50
100
150
200
250
1 june 10 june
0.0e+00
5.0e+06
1.0e+07
1.5e+07
2.0e+07
0 1 2 3 4 5 6 7 8 9 10 11 12 13 15Landsat Class
Freq
uenc
y(N
umbe
r of P
ixel
s)
0e+00
1e+08
2e+08
3e+08
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15Landsat Class
Freq
uenc
y(N
umbe
r of
Pix
els)
Tussock, sedges, shrubs
Wet sedge
Tall shrub
Bedrock lichen Sparse
vegetation
Calving grounds Larger area – similar climate
2 3
0e+00
2e+06
4e+06
6e+06
0 1 2 3 4 5 6 7 8 9 10 11 12 13 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 15Landsat Class
Num
ber
of P
ixel
s2 3
0e+00
2e+06
4e+06
6e+06
0 1 2 3 4 5 6 7 8 9 10 11 12 13 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 15Landsat Class
Num
ber
of P
ixel
s
Bluenose West Bluenose East