Sentence examples for culling area from inspiring English sources

This is why the licences require a minimum of 150 sq km, which is the threshold for culling to be effective: the bigger the culling area the smaller the proportion of area outside.

The quarantine radius, λ, represents the range of the fixed radius culling area that is ordered for controlling spread of AI shown in Figure 3C.

At high badger density, an even larger badger culling area was required: 9 km for the two monthly intervals and 14 km for the 6 monthly intervals.

16% was an average over several years of the cattle risk reduction, observed inside the culling area during four years of annual culling and in the years after culling stopped, set against the cattle risk increase observed up to 2km outside the culling area during the years of annual culling.

Even without using the model, it is clear that in an 18-month period after widespread culling stopped in the trial, cattle TB in the culling area was reduced by roughly half.

The government funding needed for each new culling area is estimated at £1.2m a year, meaning the seven news areas will cost a total of £33.6m in total over the planned four years of culling.

Extrapolations to culling areas of different sizes assume an idealised circular area to be targeted by culling, surrounded by a 2 km-wide annulus of adjoining land.

All such extrapolations are illustrative: in reality, deviations from perfectly circular culling areas would increase edge effects and reduce overall benefits, while positioning of culling areas close to cattle-free areas or geographic barriers to badger movement might potentially reduce edge effects and increase net benefits [10].

Overall, the percentages of cases reported by the laboratories in culling areas were 44%50%% less than expected during May December 2003.

There are fewer badgers per square kilometre in recently culled areas (unsurprisingly), but the badgers found there ranged more widely.

Previous studies have demonstrated that the experimental reduction of badger density by culling over large (≥100 km2) tracts of land lowers the incidence of bTB inside proactively culled areas [36], [48] but increases the incidence on land outside but within 2 km of the area culled [36], [40].