Abstract Background Tropical rainforests (TRFs) harbour almost half of the world's vascular
plant species diversity while covering only about 6–7% of land. However, why species …

Background Species or clades may retain or shift their environmental niche space over
evolutionary time. Understanding these processes offers insights into the environmental …

Bulbophyllum occultum, an epiphytic orchid mainly distributed in the rainforests of (north)
eastern Madagascar and La Réunion, represents an interesting model case for testing the …

Evolutionary slowdowns in diversification have been inferred in various plant and animal
lineages. Investigation based on diversification models integrated with environmental factors …

Tropical montane forests (TMF) are characterised by high endemism, species richness and
turnover across elevations. A key question is how niche‐based processes, via adaptation of …

Aim Understanding the evolution of the latitudinal diversity gradient (ie increase in species
diversity towards the tropics) is a prominent issue in ecology and biogeography …

Species richness is spatially heterogeneous even in the hyperdiverse tropical floras. The
main cause of uneven species richness among the four tropical regions are hot debated. To …

Although climate change has been implicated as a major catalyst of diversification, its effects
are thought to be inconsistent and much less pervasive than localized climate or the …

Background The tropical rain forests (TRF) of Africa are the second largest block of this
biome after the Amazon and exhibit high levels of plant endemism and diversity. Two main …

With limited resources for curtailing the escalating biodiversity crisis, a rational means of
setting priorities among threatened species is of pre-eminent concern. Combining …