**Figure 3:** Declining populations of *Gyps* vultures in India reproduced from
Pain et al. [17]. Points show population size index values on a logarithmic
scale plotted against calendar year, which depicts the population as a
proportion of its initial size. Triangles represent the number of active *Gyps* bengalensis nests in Keoladeo National Park, from Prakash et al. [36],
expressed as a proportion of the average number in the 1980s. Indices of
population size, relative to 1992, of *G. bengalensis *(diamonds) and *G. indicus* and *G. tenuirostris* combined (squares) in northern India were calculated from
road transect count data as described by Prakash et al. [37]. Lines depict fitted
log-linear regression models (the dashed line represents 5 G. bengalensis at
Keoladeo; the dotted line represents 5 *G. bengalensis* from road transects,
and the solid line represents 5 *G. indicus/tenuirostris* from road transects). |