Will the ongoing extinction crisis cause a severe loss of evolutionary information
accumulated over millions of years on the tree of life? This question has been largely …

Mounting evidence indicates that we are witnessing the sixth mass extinction period. Given
the important goods and services biodiversity delivers to humans, there is a need for a …

Africa hosts a rich assemblage of cycads: 66 Encephalartos species, Stangeria eriopus and
Cycas thouarsii. Most Encephalartos and S. eriopus adults appear to be fire-tolerant, and …

As ancient gymnosperm and woody plants, cycads have survived through dramatic tectonic
activities, climate fluctuation, and environmental variations making them of great significance …

The global and national Red List status of cycads known from mainlandAfrica are presented
in this study. Seventy-four taxa (including five as yetundescribed taxa) occur in Angola …

The world cycad flora of approximately 297 species and subspecies (referred to as taxa from
here on) represents a small fraction of the earth's plant diversity. Yet, despite their small …

Declining populations of less than 250 mature individuals are symptomatic of many Critically
Endangered cycads, which, globally, comprise the most threatened group of organisms as a …

Over a long period of time, cycads endemic to Africa have been facing high risk of extinction.
Several conservation efforts have been made to reduce the risk of losing these highly …

The conservation status of Cycas seemannii, native to Vanuatu, New Caledonia, Fiji and
Tonga, is assessed based on isozyme analysis, abundance estimates and factors affecting …

We compiled Red List data from all listed cycad taxa to determine the current status of the
world's most threatened plant group. Each Red List threat category had different proportions …