No consistent pollinator-mediated impacts of alien plants on natives

Impacts of the invasive alien Heracleum mantegazzianum on native plant-pollinator interactions

Impacts of Alien Land Arthropods and Mollusks on Native Plants and Animals in Hawaii

Over 2,000 alien arthropod species and about 30 alien non-marine mollusks are established in the wild in Hawai'i, While the data are too meager to assess fully the impacts of any of these organisms on the native biota, the documentation suggests several areas of critical concern. Alien species feed directly on native plants or their products, thus competing with native herbivores and affecting ...

Effects of Alien Plants on Native Ecosystems*

Invasions by alien plants can change the large-scale functioning of native ecosystems and alter the population dynamics and community structure of native species. Such ecosystem-level changes affect the ways local systems interact with surrounding ecosystems, with downstream ecosystems and groundwater, and with the atmosphere. Large-scale changes in ecosystems caused by biological invasions rep...

Characteristics of successful alien plants.

Herbert Baker arguably initiated the search for species characteristics determining alien plant invasion success, with his formulation of the 'ideal weed'. Today, a profusion of studies has tested a myriad of traits for their importance in explaining success of alien plants, but the multiple, not always appropriate, approaches used have led to some confusion and criticism. We argue that a great...

Genetic rescue of remnant tropical trees by an alien pollinator.

Habitat fragmentation is thought to lower the viability of tropical trees by disrupting their mutualisms with native pollinators. However, in this study, Dinizia excelsa (Fabaceae), a canopy-emergent tree, was found to thrive in Amazonian pastures and forest fragments even in the absence of native pollinators. Canopy observations indicated that African honeybees (Apis mellifera scutellata) were...