A multiyear year study of three plant communities with purple loosestrife and biological control agents in Virginia

McAvoy, Thomas J.; Kok, L. T.; Johnson, Nels G.

doi:10.1016/j.biocontrol.2015.12.007

Cited by 8 publications

(5 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This recent increase in herbivory pressure is probably owing to insects released during the biological control programme of purple loosestrife (Neogalerucella calmariensis and N. pusilla), because the increase was observed soon after the insects were released in Quebec between 1996 and 1998. Moreover, the impacts of these insects are never immediate, and a time lag of at least 5 years is often observed [29]; this is also what the specimens suggest. In addition, Neogalerucella larvae do indeed cause this type of damage, which is characteristic of the species [61].…”

Section: Discussionmentioning

confidence: 64%

See 1 more Smart Citation

Bookkeeping of insect herbivory trends in herbarium specimens of purple loosestrife ( Lythrum salicaria )

Beaulieu

Lavoie

Proulx

2018

Phil. Trans. R. Soc. B

View full text Add to dashboard Cite

The potential use of herbarium specimens to detect herbivory trends is enormous but largely untapped. The objective of this study was to reconstruct the long-term herbivory pressure on the Eurasian invasive plant, purple loosestrife ( Lythrum salicaria ), by evaluating leaf damage over 1323 specimens from southern Québec (Canada). The hypothesis tested is that that the prevalence of herbivory damage on purple loosestrife is low during the invasion phase and increases throughout the saturation phase. Historical trends suggest a gradual increase in hole feeding and margin feeding damage from 1883 to around 1940, followed by a period of relative stability. The percentage of specimens with window feeding damage did not begin to increase until the end of the twentieth century, from 3% (2–6%) in 1990 to 45% (14–81%) in 2015. Temporal changes in the frequency of window feeding damage support the hypothesis of an increasing herbivory pressure by recently introduced insects. This study shows that leaf damage made by insects introduced for the biocontrol of purple loosestrife, such as coleopterans of the Neogalerucella genus, can be assessed from voucher specimens. Herbaria are a rich source in information that can be used to answer questions related to plant-insect interactions in the context of biological invasions and biodiversity changes. This article is part of the theme issue ‘Biological collections for understanding biodiversity in the Anthropocene’.

show abstract

Section: Discussionmentioning

confidence: 64%

“…Several North American studies have evaluated the impact of released leaf beetles on purple loosestrife (e.g. [26][27][28][29]); yet, few of the above were long-term studies that considered temporal dynamics at the population level and none have quantified the herbivory pressure that prevailed long before the introduction of insects.…”

Section: Introductionmentioning

confidence: 99%

Bookkeeping of insect herbivory trends in herbarium specimens of purple loosestrife ( Lythrum salicaria )

Beaulieu

Lavoie

Proulx

2018

Phil. Trans. R. Soc. B

View full text Add to dashboard Cite

show abstract

“…The effectiveness of biological approaches (e.g., through Coleoptera release) is sometimes questionable. According to McAvoy et al (2016), biological agents have successfully reduced the abundance of megaforbs only when their density was low.…”

Section: Conclusion and Implications Of The Resultsmentioning

confidence: 99%

How to remove expansive perennial species from sedge-dominated wetlands: results of a long-term experiment in lowland river valleys

Kołos

Banaszuk

2021

Rend. Fis. Acc. Lincei

View full text Add to dashboard Cite

Grasslands belong to valuable ecosystems facing, all over Europe, a drastic decline in their range and loss of species diversity. Severe floristic transformation may result from the cessation of traditional low-input agricultural use, and consequently, the massive spread of perennial herbs and tall grasses. Invaders can quickly form dense stands and displace endemic vegetation, which results in a nearly complete turnover of phytocenoses. In European protected areas, the only legally acceptable means for suppressing alien species and native dominants within protected areas are biological methods and mowing. We investigated the effect of cutting on the presence of three megaforbs: Lysimachia vulgaris, Lythrum salicaria, and Filipendula ulmaria in fen meadows. We hypothesized that long-term, systematic management mimicking a traditional agricultural practice, would suppress the expansion of megaforbs. Management effectively stopped Lysimachia vulgaris only in marshes, where groundwater in the growing season fell deeper than 50 cm. Coverage of Lythrum salicaria fluctuated over the years, while Filipendula ulmaria did not give in to mowing pressure; on the contrary, it increased its coverage in some places. In light of the results of the long-term experiment, we conclude that mowing appeared to be low effective in preventing the spread of tall perennials. It was likely that indirect factors caused the local withdrawal of megaforbs, i.e., mowing-driven stimulation of other species’ development (e.g., Carex spp., Phragmites) that outcompete Lysimachia vulgaris.

show abstract

“…The most common application is the introduction of G. calmariensis and G. pusilla from Europe to North America against the invasive wetland plant purple loosestrife ( Lythrum salicaria ). Since 1992, releases of Galerucella populations have been made in many states in the USA and the colonization appears to have been successful, leading to a dramatic decrease of L. salicaria populations ( Blossey et al 1994 ; Landis et al 2003 ; McAvoy et al 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Genome assemblies of three closely related leaf beetle species (Galerucella spp.)

Yang

Slotte

Dainat

et al. 2021

G3 Genes|Genomes|Genetics

View full text Add to dashboard Cite

Galerucella (Coleoptera: Chrysomelidae) is a leaf beetle genus that has been extensively used for ecological and evolutionary studies. It has also been used as biological control agent against invading purple loosestrife in North America, with large effects on biodiversity. Here we report genome assembly and annotation of three closely related Galerucella species: G. calmariensis, G. pusilla and G. tenella. The three assemblies have a genome size ranging from 460 Mbp to 588 Mbp, with N50 from 31,588 kbp to 79.674 kbp, containing 29,202 to 40,929 scaffolds. Using an ab initio evidence-driven approach, 30,302 to 33,794 protein-coding genes were identified and functionally annotated. These draft genomes will contribute to the understanding of host-parasitoid interactions, evolutionary comparisons of leaf beetle species and future population genomics studies.

show abstract

A multiyear year study of three plant communities with purple loosestrife and biological control agents in Virginia

Cited by 8 publications

References 65 publications

Bookkeeping of insect herbivory trends in herbarium specimens of purple loosestrife ( Lythrum salicaria )

Bookkeeping of insect herbivory trends in herbarium specimens of purple loosestrife ( Lythrum salicaria )

How to remove expansive perennial species from sedge-dominated wetlands: results of a long-term experiment in lowland river valleys

Genome assemblies of three closely related leaf beetle species (Galerucella spp.)

Contact Info

Product

Resources

About