S. Gradstein | Semantic Scholar

Although biodiversity of land-use systems showed taxonomic group- and guild-specific differences, most groups were affected in a similar way by habitat modifi- cation, and land- use systems such as secondary forests and agroforestry systems supported relatively high numbers of species and might play a significant role for biodiversity conservation in tropical landscapes.

The first-ever worldwide checklist for liverworts and hornworts is presented that includes 7486 species in 398 genera representing 92 families from the two phyla, providing a valuable tool for taxonomists and systematists, analyzing phytogeographic and diversity patterns, aiding in the assessment of floristic and taxonomic knowledge, and identifying geographical gaps.

It is concluded that low-shade agroforestry provides the best available compromise between economic forces and ecological needs, and Certification schemes for shade-grown crops may provide a market-based mechanism to slow down current intensification trends.

The present work comprises the taxonomic monograph of Acrolejeunea and the review of the subfamily Ptychanthoideae (Lejeuneaceae) to which they belong, and decides their taxonomic affinities.

An integrated assessment of all known native species of vascular plants in the Americas is presented, in a publicly available, searchable database, which includes 124,993 species—about one-third of the worldwide total.

Canopy epiphytes (occurring  > 90% in tree zones Z3–5) were mainly represented by orchids and ferns, many with special adaptations to drought stress such as pseudobulbs, succulence, and poikilohydry.