Increasing numbers and intercontinental spread of invasive insects on eucalypts

Hurley, Brett Phillip; Garnas, Jeffrey R.; Wingfield, Michael J.; Branco, Manuela; Richardson, David M.; Slippers, Bernard

doi:10.1007/s10530-016-1081-x

Cited by 143 publications

(112 citation statements)

References 61 publications

Supporting

Mentioning

106

Contrasting

Unclassified

Order By: Relevance

“…The ever-increasing trade in woody ornamental plants (Richardson and Rejmánek 2011 ;Eschen et al 2014 ), as well as the generalized use of wood packaging material, could explain the constant increase in the mean invasion radius for insects related to woody as compared with herbaceous plants. This is coherent with spread rates observed in insect pests of plantation forestry, which exhibit incredibly rapid spread and facile jump-dispersal-even among continents-suggesting that human aided movement is important for some species, particularly those associated with commercial trees Hurley et al 2016 ). Liebhold et al ( 2013 ) did not detect differences in the rate of spread of alien borers, foliage feeders, and sap feeders invading the forests in the USA.…”

Section: Discussionsupporting

confidence: 63%

Temporal and interspecific variation in rates of spread for insect species invading Europe during the last 200 years

Roques¹,

et al. 2016

Self Cite

View full text Add to dashboard Cite

Globalization is triggering an increase in the establishment of alien insects in Europe, with several species having substantial ecological and economic impacts. We investigated long-term changes in rates of species spread following establishment. We used the total area of countries invaded by 1171 insect species for which the date of first record in Europe is known, to estimate their current range radius (calculated as [invaded area] /π). We estimated initial rates of radial spread and compared them among different groups of insects for all years (1800-2014) and for a subset of more recent decades . Accidentally introduced species spread faster than intentionally introduced species. Considering the whole period 1800-2014, spread patterns also differ between feeding guilds, with decreasing spread rates over residence time in herbivores but not in detritivores or parasitic species. These decreases for herbivorous species appeared mainly in those associated with herbaceous plants and crops rather than woody plants. Initial spread rate was significantly greater for species detected after 1990, roughly 3-4 times higher than for species that arrived earlier. We hypothesize that the political changes in Europe following the collapse of the Iron Curtain in 1989, and the further dismantling of customs checkpoints within an enlarged European Union (EU) have facilitated the faster spread of alien insect species. Also, the number of species first recorded in the Eastern Bloc of the politically-divided Europe before 1989 was lower than for the rest of Europe. A detailed analysis of six recent invaders indicated a dominant role of long-distance translocations related to human activities, especially with the plant trade, in determining rates of spread. AQ1

show abstract

Section: Discussionsupporting

confidence: 63%

Temporal and interspecific variation in rates of spread for insect species invading Europe during the last 200 years

Roques¹,

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…Garnas et al (2012) highlight the complex interplay between factors that influence the global movement of pests, leading to the rapid attainment of global distributions and 'pest homogenization' on crop and forestry hosts. Apart from trade and the movement of people, these include: 1) the global homogenization of host species (e.g., Eucalyptus that is increasingly becoming a global fiber crop; Hurley et al 2015); and 2) the positive feedback between global introduction and spread and subsequent invasion. This latter phenomenon, where invasive populations act as the source of further introductions, has been termed the "bridgehead effect" and is increasingly seen as an important driver of increasing rates of global invasive species.…”

Section: Patterns Of Global Insect Movementmentioning

confidence: 99%

Complex patterns of global spread in invasive insects: eco-evolutionary and management consequences

Garnas

Auger‐Rozenberg²,

Roques³

et al. 2016

Biol Invasions

Self Cite

141

111

View full text Add to dashboard Cite

The advent of simple and affordable tools for molecular identification of novel insect invaders and assessment of population diversity has changed the face of invasion biology in recent years. The widespread application of these tools has brought with it an emerging understanding that patterns in biogeography, introduction history and subsequent movement and spread of many invasive alien insects are far more complex than previously thought. We reviewed the literature and found that for a number of invasive insects, there is strong and growing evidence that multiple introductions, complex global movement, and population admixture in the invaded range are commonplace. Additionally, historical paradigms related to species and strain identities and origins of common invaders are in many cases being 1 challenged. This has major consequences for our understanding of basic biology and ecology of invasive insects and impacts quarantine, management and biocontrol programs. In addition, we found that founder effects rarely limit fitness in invasive insects and may benefit populations (by purging harmful alleles or increasing additive genetic variance). Also, while phenotypic plasticity appears important post-establishment, genetic diversity in invasive insects is often higher than expected and increases over time via multiple introductions.Further, connectivity among disjunct regions of global invasive ranges is generally far higher than expected and is often asymmetric, with some populations contributing disproportionately to global spread. We argue that the role of connectivity in driving the ecology and evolution of introduced species with multiple invasive ranges has been historically underestimated and that such species are often best understood in a global context.

show abstract

“…Nevertheless, single introductions may also occur, like in the case of the Asian yellow‐legged hornet ( Vespa velutina , Arca et al, ; Monceau, Bonnard, & Thiéry, ). Additionally, bridgehead scenarios, in which an invasive population acts as the source for another invasive population (Hurley et al, ; Lombaert et al, ; Yang, Sun, Xue, Li, & Hong, ), may complicate the invasion history considerably, and such a pattern seems to be much more frequent than previously estimated (Garnas et al, ).…”

Section: Introductionmentioning

confidence: 99%

Deciphering the worldwide invasion of the Asian long‐horned beetle: A recurrent invasion process from the native area together with a bridgehead effect

Javal¹,

Lombaert

Tsykun

et al. 2019

Molecular Ecology

View full text Add to dashboard Cite

Retracing introduction routes is crucial for understanding the evolutionary processes involved in an invasion, as well as for highlighting the invasion history of a species at the global scale. The Asian long‐horned beetle (ALB) Anoplophora glabripennis is a xylophagous pest native to Asia and invasive in North America and Europe. It is responsible for severe losses of urban trees, in both its native and invaded ranges. Based on historical and genetic data, several hypotheses have been formulated concerning its invasion history, including the possibility of multiple introductions from the native zone and secondary dispersal within the invaded areas, but none have been formally tested. In this study, we characterized the genetic structure of ALB in both its native and invaded ranges using microsatellites. In order to test different invasion scenarios, we used an approximate Bayesian “random forest” algorithm together with traditional population genetics approaches. The strong population differentiation observed in the native area was not geographically structured, suggesting complex migration events that were probably human‐mediated. Both native and invasive populations had low genetic diversity, but this characteristic did not prevent the success of the ALB invasions. Our results highlight the complexity of invasion pathways for insect pests. Specifically, our findings indicate that invasive species might be repeatedly introduced from their native range, and they emphasize the importance of multiple, human‐mediated introductions in successful invasions. Finally, our results demonstrate that invasive species can spread across continents following a bridgehead path, in which an invasive population may have acted as a source for another invasion.

show abstract

Increasing numbers and intercontinental spread of invasive insects on eucalypts

Cited by 143 publications

References 61 publications

Temporal and interspecific variation in rates of spread for insect species invading Europe during the last 200 years

Temporal and interspecific variation in rates of spread for insect species invading Europe during the last 200 years

Complex patterns of global spread in invasive insects: eco-evolutionary and management consequences

Deciphering the worldwide invasion of the Asian long‐horned beetle: A recurrent invasion process from the native area together with a bridgehead effect

Contact Info

Product

Resources

About