The link from traits to occurrence
in wood decaying fungi
Anna Norberg
Mathematical Biology
Group
25/5/2015
Traits
Traits & vulnerability
Community
Global
Community assembly at several scales
Regional
Local
Observed
Dynamics result from different
underlying processes
Statistical modelling framework
HMSC
Hierarchical Modelling of Species Communities
Blanchet et al. (in prep.)
Framework
Global
Regional
phylogenetic
relationships
explanatory variables
environmental
covariates
species
traits
parameters to be estimated
species
and community level
random variation
biotic
assembly ≈ species
associations
scale of assembly
effects
of the regional &
local level habitats ≈ species
niches
strenght
of phylogen.
signal
GLOBAL
species
REGIONAL
pool
species
LOCAL species pool
pool
and local species abundances — actual community
response
variable
Local
Observed
model
predictions
species occurrence pattern
trait scenarios
interactions scenarios
Framework
[c]: Sebastián-González et al.
(2010)
Regional
[d]: Nordén et al. (2013)
[e] Olden et al. (2014)
scale of assembly
[a]
[i]
[h]-[j]
species
and community level
random variation
[a][d][e][i]
environmental
covariates
[k]
species
traits
[a]: Ovaskainen & Soininen parameters
(2011)
to be estimated
Global
[b]: Ovaskainen et al. (2010)
phylogenetic
relationships
explanatory variables
biotic
assembly ≈ species
associations
effects
of the regional &
local level habitats ≈ species
niches
strenght
of phylogen.
signal
[b][c][f][h][i][j]
[f] Sebastián-González et al. GLOBAL
species
(MS)
REGIONAL
pool
species
LOCAL species pool
[g] Ottosson et al. (2014)
pool
and local species abundances — actual community
[h] Abrego, Dunson et al.
response
(submitted)
Local
species occurrence pattern
variable
[i] Blanchet et al. (in prep.)
[j] Ovaskainen, Dunson et al.
(in prep.)
Observed
[k] Ives & Helmus (2011)
model
predictions
trait scenarios
interactions scenarios
[a]-[k]
Data
Snapshot of fragmented Beech forests
in the Basque Country,
Northern Spain
>22 000 sampling units
decay stage
resource unit volume
natural/managed forests
distance to forest edge
>300 species
life forms
spore morphology
Questions
How species occurrences are influenced by their functional traits?
Can variation in among species occurrence, from large to small
spatial scales, be associated to such traits?
-5.
-5.
-4.5
-4.5
-5.5
-2.5
-3.5
-4.5
-4.5
-3.5
-3.5
-4.5
-5.5
-4.5
-4.5
-5.5
Ic, Asex,
Sorn, LF_Strom
Ic, LF_Strom
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6
-1.5
-2.5
Ic,Ic,
ThickWall,
LF_Ramar
ThickWall,
LF_Ramar
1.3
1.3
-3.5
-4.5
-3.5
-4.5
-4.5
-3.5
-3.5
-4.5
-4.5
-5.5
-4.5
-4.5
-5.5
-5.5
Ic,
LF_Strom
Ic,ThickWall,
Asex, LF_Strom
-4.5
-5.5
-4.5
-5.5
-2.5
-3.5
-2.5
-3.5
-1.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6 1.3
1.3
-3.5
-4.5
-3.5
-4.5
-2.5
-3.5
-2.5
-3.5
Ic, Sorn,
LF_Strom
Ic, Asex, Sorn,
ThickWall,
LF_Ramar
1.3
1.3
Ic,ThickWall,
Asex,
LF_Poly_r
Ic,
LF_Poly_r
Thick
spore
walls
-5.5
-3.5
-4.5
-3.5
-4.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6
-1.5
1.3
1.3
-4.5
-5.5
-4.5
-5.5
x, LF_Tremel
sex,
LF_Tremel
Phylogenetic
LF_Tremel
Sorn,
LF_Tremel
signalIc,~Ic,Sorn,
0.2
-1.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6 1.3
1.3
-1.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6 1.3
1.3
Ic,Ic,
Asex,
Sorn,
LF_Tremel
Asex,
Sorn,
LF_Tremelto
Distance
Ic,Ic,
ThickWall,
ThickWall,
LF_Tremel
the forest
edge LF_Tremel
5
-1.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6 1.3
1.3
5 -5.5
5 -5.5
-0.1
-0.1 0.60.6 1.3
1.3
5 -5.5
5 -5.5
sex,
LF_Strom
kWall,
LF_Ramar
-0.8 -0.1
-0.1 0.6
0.6 1.3
1.3
-0.8
Ic,Ic,
Asex,
Sorn,
LF_Ramar
Asex,
Sorn,
LF_Ramar
Ic,Ic,
ThickWall,
LF_Poly_p
ThickWall,
LF_Poly_p
-1.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6
-2.5 -5.5
-2.5 -5.5
-1.5
-1.5
Ramarioids
-2.5 -5.5
-2.5 -5.5
-0.1 0.6
0.6 1.3
1.3
0.1
Ic,Ic,
Sorn,
LF_Ramar
Sorn,
LF_Ramar
Ic, LF_Poly_r
Ic, Asex,
Sorn,
LF_Poly_r
Thin
spore
walls
-1.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6 1.3
1.3
5 -5.5
5 -5.5
x, LF_Ramar
sex,
LF_Ramar
-1.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6 1.3
1.3
-2.5 -5.5
-2.5 -5.5
-0.1
-0.1 0.60.6 1.3
1.3
Linear predictor
-4.5
-5.5
-4.5
-5.5
-3.5
-4.5
-3.5
-4.5
Resupinate
polypores
1.3
1.3
-4.5
-5.5
-4.5
-5.5
-2.5
-3.5
-2.5
-3.5
Ic, Asex, Sorn,
ThickWall,
LF_Poly_p
Ic, Sorn,
LF_Poly_r
-2.5
-3.5
-2.5
-3.5
kWall,
LF_Poly_p
ex, LF_Poly_r
-1.5
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6
-2.5 -5.5
-2.5 -5.5
0.1
0.6
-1.5
-0.8
0.6
-0.1
0.6 1.3
1.3forest
-1.5 Natural
-0.8 -0.1
-0.1 forest
0.6 1.3
1.3
Managed
Ic,Ic,
Asex,
Sorn,
LF_Poly_p
Asex,
Sorn,
LF_Poly_p
-3.5
-2.5
-2.5
-3.5
Ic,Ic,
Sorn,
LF_Poly_p
Sorn,
LF_Poly_p
-3.5
-2.5
-2.5
-3.5
-2.5 -5.5
-2.5 -5.5
-2.5 -5.5
-2.5 -5.5
x, LF_Poly_p
sex,
LF_Poly_p
1.3
1.3
-3.5
-4.5
-5.
-4.5
-5.5
-4.5
-5.
-4.5
-5.5
Response
with
respect
traits
-1.5
-0.8
-0.1
-1.5
1.3
-1.5
-1.5 to
-0.8habitat
-0.1 0.6
0.6 1.3
1.3
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6to
1.3
-1.5 -0.8
-0.8 -0.1
-0.1 0.6
0.6
-0.1
-0.1 0.60.6 1.3
1.3
Species interactions with respect to traits
Resupinate corticioid
associations with
> 95% posterior
probability
1
10 04
1 5
10 06
10 7
10 8
11 9
11 0
1121
113
114
115
116
117
118
119
120
121
122
29 8
2 7
2 6
2 5
2
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
149
14
14 8
14 7
14 6
1 5
14 44
1 3
14 42
1
0
14 39
1 8
13 37
1 6
13 5
13 4
13 3
13
132
131
130
129
128
127
126
125
124
123
Pileate
polypore
Agaricoid
Corti_pileate
Corti_resup
Discomycetoid
Polyp_pileate
Polyp_resup
Ramarioid
Stromatoid
Tremelloid
47
46
45
44
43
42
41
40
39
38
37
36
35
34
3
32 3
3
30 1
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63 4
6
65 6
6
Discomycetoid
6
68 7
6
70 9
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
0
10 01
1 02
1 03
1
Pileate
corticioid
Resupinate
polypore
Ramarioid
Agaricoid
Tremelloid
Stromatoid
Conclusions
Species occurrences can be related to their traits
— Part of among-species variation in occurrence can be associated to
such traits
— Responses to forest management and distance from forest edge
— Non-random species co-occurrence patterns after habitat effects
are not evenly distributed among and between trait groups
Thank you
Otso Ovaskainen
Research Foundation of the University of Helsinki
Photos by & from
Elisabeth Ottosson
Christine Hanrahan
Pinkka
mycobank.org
Nerea Abrego
Guillaume Blanchet