A highly aggregated geographical distribution of forest pest invasions in the USA

  title={A highly aggregated geographical distribution of forest pest invasions in the USA},
  author={Andrew M. Liebhold and Deborah G. McCullough and Laura M. L. Blackburn and Susan J. Frankel and Betsy von Holle and Juliann E Aukema},
  journal={Diversity and Distributions},
Geographical variation in numbers of established non‐native species provides clues to the underlying processes driving biological invasions. Specifically, this variation reflects landscape characteristics that drive non‐native species arrival, establishment and spread. Here, we investigate spatial variation in damaging non‐native forest insect and pathogen species to draw inferences about the dominant processes influencing their arrival, establishment and spread. 

Landscape correlates of forest plant invasions: A high‐resolution analysis across the eastern United States

Invasive species occurrence is often related to the anthropogenic context of a given area. Quantifying the effects of roads is of particular interest as roads are a major vector for invasion. Our

Region‐specific patterns and drivers of macroscale forest plant invasions

The weaker associations between human legacy and invasions in the heavily invaded East, compared to the less-invaded West, suggest a declining effect of propagule pressure over time with increasing invasion intensity, and spatial heterogeneity in invasive plant management and policy at macroscales is illustrated.

Recreational freshwater fishing drives non-native aquatic species richness patterns at a continental scale

Distributions of aquatic non-native species across the continental US are better predicted by freshwater recreational fishing than by human population density, which suggests that observed patterns are driven by a mechanistic link between recreational activity and aquatic non -native species richness and are not merely the outcome of sampling bias associated with human populationdensity.

Evidence of biotic resistance to invasions in forests of the Eastern USA

These findings illustrate the improved understanding of biotic resistance to invasions that is gained by accounting for sub-regional variability in ecological processes, and underscores the need to determine the factors leading to spatial heterogeneity inBiotic resistance.

Socio-environmental drivers of establishment of Lymantria dispar, a nonnative forest pest, in the United States

The statistical model developed here can be used to predict invasions and inform surveillance strategies to more efficiently manage these invasions.

Environmental harshness drives spatial heterogeneity in biotic resistance

Ecological communities often exhibit greater resistance to biological invasions when these communities consist of species that are not closely related. The effective size of this resistance, however,

Predicting the spread of all invasive forest pests in the United States.

Results indicated that a single general dispersal kernel model was sufficient to predict the majority of variation in extent and locational distribution across pest species and that proxies of propagule pressure and habitat invasibility - well-studied predictors of establishment - should also be applied to the dispersal stage.

Factors driving historic intercontinental invasions of European pine bark beetles

Largely assisted by global trade, alien insect species are being introduced into new territories at unprecedented rates. Among forest insects, pine bark beetles (Coleoptera: Curculionidae,

Tree diversity reduces pest damage in mature forests across Europe

Overall damage to broadleaved species significantly decreased with the number of tree species in mature forests, and this pattern of associational resistance was frequently observed across tree species and countries, irrespective of their climate.



BIODIVERSITY RESEARCH: Native‐exotic species richness relationships across spatial scales and biotic homogenization in wetland plant communities of Illinois, USA

The finding of homogenization at the community level extends conclusions from previous studies having found this pattern at much larger spatial scales and suggests that even while exhibiting a positive native-exotic richness relationship, community level biotas can/are still being homogenized because of exotic species invasion.

The role of propagule pressure in explaining species invasions.

Invasion by Exotic Forest Pests: A Threat to Forest Ecosystems

This work presents case histories that illustrate the invasion process via details of the arrival, spread, impact, and management of selected exotic forest pests.

Divergent biogeography of native and introduced soil macroinvertebrates in North America north of Mexico

Coastal, densely populated regions are likely to have a higher proportion of introduced soil macroinvertebrate species, and source region appears to strongly influence introduced species richness‐latitude relationships.

Exploring associations between international trade and environmental factors with establishment patterns of exotic Scolytinae

These findings suggest that if current infestation levels continue on imported plants and wood packaging material, increasing international trade will likely lead to more establishments of exotic Scolytinae with concomitant negative effects on forest health in both Europe and the USA.

Ants and people: a test of two mechanisms potentially responsible for the large‐scale human population–biodiversity correlation for Formicidae in Europe

There is little evidence for habitat heterogeneity as an explanation of the large-scale human population–ant biodiversity correlation, but there is evidence that this type of habitat heterogeneity can play a role in the observed latitudinal gradient of ant species richness, but not in the positive correlation between ant Species richness and human population.

Global change, global trade, and the next wave of plant invasions

Many non-native plants in the US have become problematic invaders of native and managed ecosystems, but a new generation of invasive species may be at our doorstep. Here, we review trends in the

Geographical, socioeconomic, and ecological determinants of exotic plant naturalization in the United States: insights and updates from improved data

It is found that, while the number of native species is largely controlled by natural factors such as area and temperature, exotic species and exotic fraction are predominantly influenced by social factorssuch as human population.

Historical Accumulation of Nonindigenous Forest Pests in the Continental United States

A comprehensive species list to assess the accumulation rates of nonindigenous forest insects and pathogens established in the United States found sap feeders and foliage feeders dominated the comprehensive list, but phloem- and wood-boring insects and foliageFeeders were often more damaging than expected.

Spatial Pattern and Determinants of the First Detection Locations of Invasive Alien Species in Mainland China

The results suggest that “introduction pressure” may be one of the most important factors that determine the locations where newly-introduced species are first detected, and that open and developed provinces in China should be prioritized when developing monitoring programs that focus on locating and managing new introductions.