In a system where non-native plants dominate ex-arable soils, we decoupled land-use (ex-arable, undisturbed) and plant-growth (native, non-native) effects on soil microbial communities using a factorial sampling design.
Much of the research conducted on native invasives eludes to the possibility that, similar to non-native invasives, they may have negative effects on other native flora and fauna.
The introduction of non-indigenous species (NIS) is expected to have negative effects on native competitors, particularly between functionally similar species.
Diette and Uwaifo Oyelere (2012) find no effect on average but find negative effects on native students in schools in cities and in those with a lower median share of LE students.
Many of these small and not yet well-established populations will likely have escaped notice because their negative effects on native communities are not currently apparent.
In these cases, recent climate warming might enhance invasion ability, favouring range expansion, population growth and negative effects on native faunas.
So, the evidence of this study suggests that there have been no detectable negative effects on native species at a population level.
On the contrary, addition of activated carbon had a positive effect on knotweed and negative effects on the natives, which indicates allelopathic effects of the natives on knotweed, rather than vice versa.
The results are similar when we interact immigration flows with years of education (of the native), suggesting that the effects on native well-being due to immigration do not depend on the education level of the native.
The long history of colonialism, forced containment to reservations, and ongoing federal policies directed at Native Americans has had profound effects on Native communities.
Burrowing crab densities are uniform across mangrove and removal sites, and, unlike in native mangroves, their effects on infaunal communities are similarly negligible in both mangrove and removal areas.
