Figure 1.
R. norvegicus (log scale) trapped in 20 alleys in 2006–2007 (black bars) and 2007–2008 (gray bars).
Neighborhoods sampled with corresponding alleys shown in inset.
Figure 2.
Proportion of rats removed versus estimated R. norvegicus population size during year 1 (squares) and year 2 (diamonds).
Figure 3.
House cat canine puncture to right thoracic cavity of 315 g (body mass) Norway rat.
Figure 4.
Body sizes of R. norvegicus trapped (black bars) and predated (gray bars) by cats in Baltimore.
Figure 5.
Relationship between rat population size and cat population size during year 1 (A) and year 2 (B).