Global change drivers (GCDs) are expected to alter community structure and consequently,
the services that ecosystems provide. Yet, few experimental investigations have examined …

Urban plant biodiversity is influenced by both the physical environment and attitudes and
preferences of urban residents for specific plant types. Urban residents are assumed to be …

In arid and semiarid regions, where few if any trees are native, city trees are largely human
planted. Societal factors such as resident preferences for tree traits, nursery offerings, and …

Climate change is intensifying the hydrologic cycle and is expected to increase the frequency
of extreme wet and dry years. Beyond precipitation amount, extreme wet and dry years …

Understanding how urban forests developed their current patterns of tree canopy cover,
species composition, and diversity requires an appreciation of historical legacy effects. However…

Nutrient additions typically increase terrestrial ecosystem productivity, reduce plant diversity
and alter plant community composition; however, the effects of P additions and interactions …

Despite substantial progress in understanding global biodiversity loss, major taxonomic and
geographic knowledge gaps remain. Decision makers often rely on expert judgement to fill …

Herbivores alter plant biodiversity (species richness) in many of the world’s ecosystems, but
the magnitude and the direction of herbivore effects on biodiversity vary widely within and …

Intensification of the global hydrological cycle, ranging from larger individual precipitation
events to more extreme multiyear droughts, has the potential to cause widespread alterations …

The pattern of a few abundant species and many rarer species is a defining characteristic of
communities worldwide. These abundant species are often referred to as dominant species. …