Ecological Corridors Also Operate in an Urban Matrix: a Test Case with Garden Shrews

Ecological corridors also operate in an urban matrix: a test case with garden shrews. Urban ecosystems. Alan Vergnesa, Christian Kerbirioua and Philippe Clergeaua aMuséum National d’Histoire Naturelle, Département d’Ecologie, UMR CERSP, 55 rue Buffon, 75005 Paris, France Corresponding author : Alan Vergnes. Muséum National d’Histoire Naturelle, Département d’Ecologie, UMR CERSP, 55 rue Buffon, 75005 Paris, France. Tel. :+33140795765; fax +140793835 E-mail address: [email protected] ESM 2. Table of correlations between environmental variables. Correlations were computed using the Spearman rank test and two variables were considered correlated for R > 0.4. the distance to the corridor (Dcor) the distance to the woodlot (Dwood), abundance of C. russula (ab_rus_), the abundance of Sorex coronatus (ab_coro_), the abundance of Sorex minutus (ab_min_) in woodloot when followed by wood and in corridor when followed by cor. the log transformed area of garden (Area), the vegetation cover under hedgerow (PC_veg), the management of gardens (PC_ manage), the log transformed abundance of carabids (Carab). (gard_min, gard_rus and gard_coro).

PC_veg PC_manage ab_coro_cor ab_rus_ ab_min_ ab_shew Dcor Dwood Area gard_russ gard_coro gard_min ab_wood ab_wood ab_wood ab_wood

cor cor _cor _shrew _rus _coro _min PC_veg -0.03 -0.39 0.08 -0.39 -0.42 0.15 0.04 0.2 0.24 -0.07 -0.05 -0.29 0.28 -0.29 -0.48 PC_manage -0.03 0.22 -0.23 0.22 0.09 0.1 -0.18 0.51 0.2 0.31 0.09 0.12 0.02 0.12 0.000 ab_coro_cor -0.39 0.22 -0.57 1 0.77 0.12 0.07 -0.06 0.08 0.45 0.32 0.77 -0.33 0.77 0.82 ab_rus_cor 0.08 -0.23 -0.57 -0.57 0.07 -0.16 0.06 -0.12 -0.12 -0.26 -0.08 -0.18 0.24 -0.18 -0.11 ab_min_cor -0.39 0.22 1 -0.57 0.77 0.12 0.07 -0.06 0.08 0.45 0.32 0.77 -0.33 0.77 0.82 ab_shew_cor -0.42 0.09 0.77 0.07 0.77 0.02 0.15 -0.15 -0.02 0.35 0.33 0.77 -0.28 0.77 0.93 Dcor 0.15 0.1 0.12 -0.16 0.12 0.02 0.23 -0.13 -0.37 -0.03 -0.11 0.14 0.06 0.14 0.05 Dwood 0.04 -0.18 0.07 0.06 0.07 0.15 0.23 -0.15 -0.12 -0.42 -0.39 0.09 -0.07 0.09 0.16 Area 0.2 0.51 -0.06 -0.12 -0.06 -0.15 -0.13 -0.15 0.33 0.08 0.01 -0.22 -0.18 -0.22 -0.08 gard_russ 0.24 0.2 0.08 -0.12 0.08 -0.02 -0.37 -0.12 0.33 0.2 0.13 0.08 0.12 0.08 -0.09 gard_coro -0.07 0.31 0.45 -0.26 0.45 0.35 -0.03 -0.42 0.08 0.2 0.83 0.35 -0.15 0.35 0.37 gard_min -0.05 0.09 0.32 -0.08 0.32 0.33 -0.11 -0.39 0.01 0.13 0.83 0.25 -0.19 0.25 0.36 ab_wood_shrew -0.29 0.12 0.77 -0.18 0.77 0.77 0.14 0.09 -0.22 0.08 0.35 0.25 0.26 1 0.63 ab_wood_rus 0.28 0.02 -0.33 0.24 -0.33 -0.28 0.06 -0.07 -0.18 0.12 -0.15 -0.19 0.26 0.26 -0.54 ab_wood_coro -0.29 0.12 0.77 -0.18 0.77 0.77 0.14 0.09 -0.22 0.08 0.35 0.25 1 0.26 0.63 ab_wood_min -0.48 0.000 0.82 -0.11 0.82 0.93 0.05 0.16 -0.08 -0.09 0.37 0.36 0.63 -0.54 0.63 Carab -0.24 0.25 0.17 0.07 0.17 0.23 -0.03 -0.27 0.02 -0.01 0.42 0.34 0.43 0.31 0.43 0.16