A long-lived monocarpic species of bamboo, Phyllostachys nigra var. henonis, only flowers once every 120 years before it dies. The upcoming flowering event for this species does not bode well for its continued long-term survival, as most flowers are not producing viable seeds.
An international group of scientists has issued an urgent call for coordinated action to save the iconic genus Rafflesia, which contains the world’s largest flowers. This follows a new study which found that most of the 42 species are severely threatened, yet just one of these is listed in the International Union for Conservation of Nature (IUCN)’s Red List of Threatened Species. Furthermore, over two thirds (67%) of the plants’ habitats are unprotected and at risk of destruction.
Pollen of flowering plants can be dispersed by animals, wind or even by water. In assessing pollination modes, a fundamental question is how many flowering plants are pollinated by animals. Although the question has been raised previously, an accurate estimation remains elusive.
A research team has unraveled the evolutionary history of the Arctic flora. Researchers selected 32 angiosperm clades comprising 3,626 species across the angiosperm tree of life. They found that dispersal to the Arctic and in situ diversification within the Arctic followed similar trends through time.
New research looking at the evolution of terrestrial orchid species has found that global cooling of the climate appears to be the major driving factor in their diversity. The results help scientists understand the role of global climate on diversity of species, and how our current changing global climate might affect biodiversity in the future.
Cottonwood trees are crucial for biodiversity in the arid Southwest, but less than 3% of their pre-20th-century distribution remains. A new study reveals their genetics influence insect and fungal communities. To preserve these ecosystems, reforestation efforts should consider tree genetics and collect seeds from nearby regions with resilient traits. Planting diverse trees supports diverse communities, ensuring the survival of this vital foundation species.
New esearch has found using environmental DNA (eDNA), in conjunction with conventional methods, to monitor how insects interact with flowers could potentially improve conservation rates.
For several years, ecological research has argued that climate often has no determining influence on the distribution of forests and savannas in tropical regions. However, an international research team has now succeeded in proving that it depends mostly on climatic factors whether regions in Africa are covered by forest or savanna. The study, confirms the dominant role of climate in the formation of global vegetation patterns.
New detailed genetic analysis clarifies the evolutionary relationships among orchids and reveals that the plant’s ability to grow on trees evolved independently in several lineages.