Separate and interactive effects of competition and herbivory on the growth, expansion, and tuber formation of Hydrilla verticillata

Doyle, Robert D.; Grodowitz, Michael J.; Smart, Michael; Owens, Chetta S.

doi:10.1016/j.biocontrol.2007.03.004

Cited by 31 publications

(20 citation statements)

References 21 publications

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“…Moreover, these specific control agents usually reduce the biomass development of the target species but do not completely eliminate it; otherwise it could also mean the elimination of the control agent, which does not make sense in the context of coevolution. For example, of four host-specific insect biocontrol agents that were collected within the native range of Hydrilla and introduced in the USA for its management (Center et al, 1997), the most damaging of these insect agents, the leaf-mining fly (Hydrellia pakistanae Deonier), was able to reduce by only 30-40% the biomass of Hydrilla under field conditions (Doyle et al, 2002(Doyle et al, , 2007. Nevertheless, this represented a significant impact that could help to control the growth and expansion of the exotic plant.…”

Section: Control and Managementmentioning

confidence: 91%

Hydrilla verticillata (Hydrocharitaceae), a recent invader threatening Brazil’s freshwater environments: a review of the extent of the problem

Sousa

2011

Hydrobiologia

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Hydrilla verticillata (Hydrocharitaceae) is a highly prolific, rooted submerged macrophyte native to Asia that has invaded aquatic systems worldwide, causing many ecological and humanrelated problems. Hydrilla recently invaded the Paraná River basin in Brazil, making other ecologically and socially important Brazilian watersheds more susceptible to invasion by this plant. Here, I summarize the relevant information about Hydrilla, focusing on its biotic attributes, abiotic tolerance and effects on ecosystems. The aim of this review is to provide background information to assist with plan-

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Section: Control and Managementmentioning

confidence: 91%

Hydrilla verticillata (Hydrocharitaceae), a recent invader threatening Brazil’s freshwater environments: a review of the extent of the problem

Sousa

2011

Hydrobiologia

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“…High-temperature-induced changes in morphology and biomass allocation may lead to increased growth and competitive capacity (Pilon & Santamaría 2002;Riis et al 2012). For the structure and proper functioning of freshwater ecosystems, competition can be considered a paramount factor determining the species distribution in aquatic macrophyte communities (Moss et al 2003, Doyle et al 2007.…”

Section: Introductionmentioning

confidence: 99%

Effects of heat stress on growth, photosynthetic pigments, oxidative damage and competitive capacity of three submerged macrophytes

Silva

Asaeda

2017

Journal of Plant Interactions

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There is an information gap regarding heat stress-induced oxidative damage and the species-specific behavior of plants under stress conditions. The present study was designed with the hypothesis that heat stress may induce species-specific oxidative damage that determines the competitive capacity of common submerged macrophytes. We conducted two laboratory experiments to simulate mono-and mixed cultures of three submerged macrophytes with the application of two heat shock treatments. The results showed that both heat shocks had significant effects on growth, photosynthetic pigments and the ability to induce strong oxidative damage for all three species. The comparative results of mono-and mixed cultures showed that P. crispus had an advantage in both the control and hightemperature treatments over the other two species as a strong competitor in the mixed culture. Further, the competitive capacity of P. crispus increased in the moderately high-temperature condition compared to the control. ARTICLE HISTORY

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“…Two Hydrellia species have been deliberately released as part of a biological control programme and established on Hydrilla verticillata in the United States (Balciunas & Burrows, 1996;Grodowitz et al, 1997;Julien & Griffiths, 1998). These cause significant damage to weed infestations in the field (Balciunas et al, 2002) and under experimental conditions (Doyle et al, 2002(Doyle et al, , 2007. In addition, impact surveys in South America show that a Hydrellia sp.…”

Section: Discussionmentioning

confidence: 96%

Natural enemies from South Africa for biological control of Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae) in Europe

et al. 2010

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The non-native invasive plant, Lagarosiphon major (Hydrocharitaceae) is a submersed aquatic macrophyte that poses a significant threat to water bodies in Europe. Dense infestations prove difficult to manage using traditional methods. In order to initiate a biocontrol programme, a survey for natural enemies of Lagarosiphon was conducted in South Africa. Several phytophagous species were recorded for the first time, with at least three showing notable promise as candidate agents. Amongst these, a leaf-mining fly, Hydrellia sp. (Ephydridae) that occurred over a wide distribution causes significant leaf damage despite high levels of parasitism by braconid wasps. Another yet unidentified fly was recorded mining the stem of L. major. Two leaffeeding and shoot boring weevils, cf. Bagous sp. (Curculionidae) were recorded damaging the shoot tips and stunting the growth of the stem. Several leaffeeding lepidopteran species (Nymphulinae) were frequently recorded, but are expected to feed on a wide range of plant species and are not considered for importation before other candidates are assessed. The discovery of several natural enemies in the country of origin improves the biological control prospects of L. major in Europe.

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Separate and interactive effects of competition and herbivory on the growth, expansion, and tuber formation of Hydrilla verticillata

Cited by 31 publications

References 21 publications

Hydrilla verticillata (Hydrocharitaceae), a recent invader threatening Brazil’s freshwater environments: a review of the extent of the problem

Hydrilla verticillata (Hydrocharitaceae), a recent invader threatening Brazil’s freshwater environments: a review of the extent of the problem

Effects of heat stress on growth, photosynthetic pigments, oxidative damage and competitive capacity of three submerged macrophytes

Natural enemies from South Africa for biological control of Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae) in Europe

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