Ecological Archives C006-113-A2
David Bell, Joakim Hjältén, Christer Nilsson, Dolly Jørgensen, and Therese Johansson. 2015. Forest restoration to attract a putative umbrella species, the white-backed woodpecker, benefited saproxylic beetles. Ecosphere 6:278. http://dx.doi.org/10.1890/es14-00551.1
Appendix B. Relationship between structural and temporal forest variables and beetle community structure (transformed data).
Table B1. Marginal tests in DistLM performed on transformed (presence-absence) community data for saproxylic beetles. The results reflect to what extent structural and temporal variables, individually, explain patterns in community structure. CWD = coarse woody debris.
Variable |
SS (trace) |
Pseudo-F |
P |
% Var |
Time since restoration |
4008,2 |
2,55 |
0,001 |
0,14 |
Elevation |
3044,7 |
1,87 |
0,011 |
0,10 |
Canopy cover |
5099,1 |
3,40 |
0,001 |
0,18 |
Slope |
1686,5 |
0,98 |
0,483 |
0,06 |
Aspect (W) |
1754,5 |
1,03 |
0,352 |
0,06 |
Aspect (NW) |
1631,3 |
0,95 |
0,403 |
0,06 |
Aspect (E) |
1426,2 |
0,82 |
0,728 |
0,05 |
Aspect (SW) |
1155,8 |
0,66 |
1,000 |
0,04 |
Aspect (NE) |
3160,8 |
1,95 |
0,053 |
0,11 |
Aspect (SE) |
1671,1 |
0,97 |
0,313 |
0,06 |
Stand basal area (Pinus sylvestris) |
1208,0 |
0,69 |
0,920 |
0,04 |
Stand basal area (Betula spp.) |
1970,2 |
1,16 |
0,243 |
0,07 |
Stand basal area (Populus tremula) |
1248,0 |
0,72 |
0,887 |
0,04 |
Stand basal area (Alnus spp.) |
1903,4 |
1,12 |
0,273 |
0,07 |
Lying CWD (Picea abies) |
2115,5 |
1,25 |
0,142 |
0,07 |
Lying CWD (Pinus sylvestris) |
1293,9 |
0,74 |
0,827 |
0,04 |
Standing CWD (Picea abies) |
1133,7 |
0,65 |
0,929 |
0,04 |
Standing CWD (Pinus sylvestris) |
2606,7 |
1,57 |
0,063 |
0,09 |
Standing CWD (Betula spp.) |
1782,3 |
1,04 |
0,380 |
0,06 |
Productivity class 1 |
1467,3 |
0,85 |
0,700 |
0,05 |
Productivity class 2 |
1580,2 |
0,92 |
0,565 |
0,05 |
Productivity class 3 |
2715,4 |
1,65 |
0,025 |
0,09 |
Productivity class 4 |
1408,2 |
0,81 |
0,673 |
0,05 |
Productivity class 5 |
2265,1 |
1,35 |
0,106 |
0,08 |
Productivity class 6 |
1891,6 |
1,11 |
0,258 |
0,06 |
Productivity class 7 |
1346,7 |
0,78 |
0,724 |
0,05 |
Forest stand size |
957,1 |
0,54 |
0,994 |
0,03 |
Forest age |
1094,8 |
0,63 |
0,950 |
0,04 |