For example, 81 % of the
coffee in Nicaragua and El Salvador grew under a
shade canopy in 1996, and although recent surveys document declines in
shade tree diversity since then, these declines mostly occurred on larger farms; in contrast, many
smallholder cooperatives preserve high levels of biodiversity, including more than 100 species of
shade trees on fewer than 30 farms (Méndez et al. 2010a).