Table 3. Spearman correlation coefficients (ρ) for male Savannah Sparrow and male Bobolink abundance on agricultural fields and habitat variables from the Champlain Valley of Vermont and New York over three sampling occasions (visits).

Bobolink Savannah Sparrow
Visit 1 Visit 2 Visit 3 Visit 1 Visit 2 Visit 3
ρ P ρ P ρ P ρ P ρ P ρ P
HABITATBOBO/SAVS 0.143 0.089 0.270 0.001 0.196 0.020 0.232 0.006 0.214 0.010 0.263 0.002
PROPOPEN500 0.209 0.013 0.193 0.021 0.191 0.024 0.227 0.006 0.222 0.008 0.246 0.003
WOODEDEDGEDENSITY500 −0.072 0.397 −0.110 0.194 −0.121 0.152 −0.184 0.028 −0.037 0.662 −0.163 0.054
PROPOPEN2500 0.339 0.000 0.259 0.002 0.243 0.004 0.211 0.012 0.178 0.034 0.233 0.005
WOODEDEDGEDENSITY 2500 0.081 0.339 −0.021 0.807 −0.043 0.612 −0.040 0.639 −0.173 0.040 −0.093 0.274
LEGUME 0.186 0.027 0.171 0.042 −0.043 0.609 0.195 0.020 −0.008 0.929 0.105 0.213
FORB 0.075 0.375 0.138 0.102 0.142 0.094 0.058 0.494 0.099 0.242 −0.026 0.756
LITTERDEPTH −0.099 0.240 −0.037 0.664 0.161 0.057 −0.088 0.295 −0.121 0.152 −0.105 0.217
AREA 0.275 0.001 0.258 0.002 0.214 0.011 0.276 0.001 0.179 0.033 0.216 0.010
WOODEDPERIMETER −0.067 0.431 −0.096 0.255 −0.128 0.132 −0.202 0.016 −0.238 0.004 −0.338 0.000
DAYSSINCECUT 0.036 0.670 0.052 0.542 0.166 0.050 −0.130 0.124 −0.098 0.246 −0.239 0.004
NUMBERCUTS −0.052 0.540 −0.184 0.029 −0.258 0.002 0.084 0.318 0.125 0.138 0.167 0.047
CUT N/A N/A 0.217 0.009 0.175 0.038 N/A N/A −0.174 0.039 −0.141 0.096
VEGHEIGHT 0.129 0.127 0.161 0.055 0.289 0.001 −0.049 0.565 −0.114 0.176 −0.255 0.002