Larval ticks feed on a wide variety of vertebrate host species, including mammals, birds and reptiles. To determine if species differ in their quality as a
host, Keesing et al. (2009) captured individuals of six different host species in
New York, USA and conducted a larval tick feeding erperiment in the laboratory. After 72-hours, they infected each individual host with 100 larval ticks and then recorded how many ticks fed in a 96-hour period. Feeding success of a tick is
defined as a larval tick getting a blood meal from the host and surviving. Feeding
success was compared among with host species and shown in the graph below.

Question: How does the feeding success of larval ticks differ among different host species?