10.1371/journal.pone.0107387.g004 Richard S. Ostfeld Richard S. Ostfeld Taal Levi Taal Levi Anna E. Jolles Anna E. Jolles Lynn B. Martin Lynn B. Martin Parviez R. Hosseini Parviez R. Hosseini Felicia Keesing Felicia Keesing Relationship between the product of average host population density and measured body burden (number of naturally occurring larval ticks per host individual) and reservoir competence of that host species. Public Library of Science 2014 life history features reservoir competence model comparison approach pathogen encounter rates species host population density 2014-09-18 03:20:20 Figure https://plos.figshare.com/articles/figure/_Relationship_between_the_product_of_average_host_population_density_and_measured_body_burden_number_of_naturally_occurring_larval_ticks_per_host_individual_and_reservoir_competence_of_that_host_species_/1173847 <p>The product of population density and body burden, which represents the average number of ticks fed by a particular population of hosts, is used as one of two proxies for encounter rates between ticks and host species.</p>