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Burning typically occurs at intervals of 1 to 3 years in the Brazilian cerrado, a rate that exceeds the precolonization fire regime. To determine if w...

In the Horn of Africa, frankincense (an aromatic hardened wood resin) is obtained by tapping Boswellia papyrifera. World-wide, frankincense is of grea...

Sexual reproduction in 9 clones of Eichhornia crassipes from different parts of the world was examined in the glasshouse. Eight of the clones flowered...

Sexual reproduction and natural seed production in Eichhornia crassipes was examined in a total of 19 populations from 2 tropical regions (Lower Amazo...

Pollination is a vital ecosystem service, which is endangered by the ongoing declines of pollinators. These declines also affect bumblebees (Bombus sp...

A fundamental challenge to invasion ecology is to determine what factors cause an exotic species to spread rapidly long after the initial introduction...

1. Abnormal hydroclimatic years in the Amazon have been increasingly frequent in the last two decades, creating more prolonged droughts and severe flo...

Biological invasions are a major consequence of globalization and pose a significant threat to biodiversity. Because only a small fraction of introduc...

Geographic clines in life-history traits are often recognized as adaptations to the associated transitional environments. As life-history traits evolv...

The life cycle of A. sylvestris (which dominates disturbed grasslands on road verges and river dikes) was analysed to examine possible causes of its d...