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. 2013 Apr 3;8(4):e58230. doi: 10.1371/journal.pone.0058230

Figure 2. Burrow density changes.

Figure 2

Burrow density (burrows m−2) at each colony on Lord Howe Island in three years (error bars represent standard errors, as those are what was given in Priddel et al. 2006). (1978 = 1978/9; 2002 = 2002/3; 2008 = 2008/9; SP  =  Steven's Point; MB  =  Middle Beach; CP  =  Clear Place; NB  =  Ned's Beach; LMG  =  Little Muttonbird Ground; HB  =  Hunter Bay).