hectad

Noun

hectad (plural hectads)

1. A unit of land area, ten by ten (that is, a hundred) square kilometres, often used for assessing how widely distributed particular animals or plants are.
   • Those taxa that show interesting distributions have been mapped and included here, their maps incorporating earlier records made by Laflin and others from 1958 to 1968 which had been based only on localities with hectad grid references.1998, John Killick, Alan Roy Perry, Stan[ley Reginald John] Woodell, The Flora of Oxfordshire, [Newbury, Berkshire]: Pisces Publications, →ISBN
   • This comprises the proportion of each hectad covered by each of ten land-cover types: sea, coastal, arable, broadleaf forest, built-up, conifer forest, improved grassland, open water (rivers, lochs, etc.), semi-natural and upland. The temperature used was taken to be the annual temperature per...2007, Glenn Marion et al., “Towards an Integrated Approach to Stochastic Process-based Modelling: With Applications to Animal Behaviour and Spatio-temporal Spread”, in David L. Swain et al., editors...