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Query to MODIS repository to obtain remotely-sensed information on
temperature and vegetation
Monthly data are converted to Fourier harmonics for
niche modelling
Literature data collection on associations of Borrelia burgdorferi s.l., B. miyamotoi and ticks
Data on prevalence of questing nymphs
Calculation of “categories of prevalence” based on quintiles.
Projection on a grid
Production of raw maps
Reported distribution of species
0.2
0.4
0.6
0.8
275 280 285 290 295LSTD1
NDV
I1
0.4
0.6
0.8
1.0
40
60
80
100
40
60
80
100
Borrelia
Modelling relationships of prevalence in ticks with environmental traits
A
B
C
D
F
E
Projection of categories on the ecological descriptions
of the territory
1Transfer of environmental data and prevalence values to the grid
Latit
ude
35
42
49
56
63
70
Longitude
-10 0 10 20 30La
titud
e35
42
49
56
63
70
Longitude
-10 0 10 20 30
A B
2
3
4
5
6
7
8
0 %
23 %
45 %
68 %
90 %
Alpine North Alpine South Anatolian Atlantic Central Atlantic North Boreal Continental Lusitanian Med.Mountains Med. North Med. South Nemoral Pannonian Steppic
Absent Very low Low Medium High Very high
0 %
20 %
40 %
60 %
80 %
Alpine North Alpine South Anatolian Atlantic Central Atlantic North Boreal Continental Lusitanian Med. Mountains Med. North Med. South Nemoral Pannonian Steppic
0 %
23 %
45 %
68 %
90 %
Alpine North Alpine South Anatolian Atlantic Central Atlantic North Boreal Continental Lusitanian Med. Mountains Med. North Med. South Nemoral Pannonian Steppic
A
B
C
9
A
B
C
10
0.0
0.2
0.4
0.6
0.8
270 280 290 300Annual mean Temperature
Annu
al m
ean
NDV
I
●
●
●
●
●
●
AbsentHighLowMediumVery highVery low
0.0
0.2
0.4
0.6
0.8
270 280 290 300Annual mean Temperature
Annu
al m
ean
NDV
I
●
●
●
●
●
●
AbsentHighLowMediumVery highVery low
0.0
0.2
0.4
0.6
0.8
270 280 290 300Annual mean Temperature
Annu
al m
ean
NDV
I
●
●
●
●
●
●
AbsentHighLowMediumVery highVery low
−0.4
−0.2
0.0
0.2
−25 −20 −15 −10 −5Slope of temperature in spring
Slop
e of
NDV
I in
sprin
g
●
●
●
●
●
●
AbsentHighLowMediumVery highVery low
−0.4
−0.2
0.0
0.2
−25 −20 −15 −10 −5Slope of temperature in spring
Slop
e of
NDV
I in
sprin
g
●
●
●
●
●
●
AbsentHighLowMediumVery highVery low
−0.4
−0.2
0.0
0.2
−25 −20 −15 −10 −5Slope of temperature in spring
Slop
e of
NDV
I in
sprin
g
●
●
●
●
●
●
AbsentHighLowMediumVery highVery low
B. afzelii B. garinii B. valaisiana
11