Results 71 to 80 of about 2,844 (88)

Spatial population structure: patterns of adaptation in populations of the water hyacinth grasshopper Cornops aquaticum (Bruner 1906)

open access: yesBulletin of Entomological Research, 2021
The water hyacinth grasshopper Cornops aquaticum (Bruner 1906) constitutes an appropriate model to assess phenotypic and karyotypic variability in the context of differentiation and adaptation of insect populations because it occurs over a wide ...
P. Colombo   +3 more
semanticscholar   +5 more sources

What is responsible for the variance in life history traits of a South American semi‐aquatic grasshopper (Cornops aquaticum)? A test of three possible hypotheses

open access: yesStudies on Neotropical Fauna and Environment, 2007
The semi‐aquatic grasshopper Cornops aquaticum (Bruner, 1906) is native to South America, with a distribution from the Argentinian pampas to the Gulf of Mexico, and is currently being proposed as a biological control agent for the invasive water hyacinth (Eichhornia crassipes) in South Africa.
Joachim Adis
exaly   +5 more sources

Performance and field host range of the life stages of Cornops aquaticum, a biological control agent of water hyacinth

Entomologia Experimentalis Et Applicata, 2023
Host specificity determination of weed biocontrol agents has historically relied on evidence generated through quarantine trials in the region of introduction.
Daniela Fuentes-Rodríguez   +2 more
exaly   +5 more sources

Nutrient-mediated effects on Cornops aquaticum Brüner (Orthoptera: Acrididae), a potential biological control agent of water hyacinth, Eichhornia crassipes (Mart.) Solms (Pontederiaceae)

open access: yesBiological Control, 2013
Abstract Host plant quality for phytophagous insects, of which nitrogen is one of the most crucial components, is highly variable and can be a major determinant of their performance. This has implications in insect-weed biological control systems where host plant quality can affect establishment, survival and population growth rates of the biocontrol
A. Bownes, M. Hill, M. Byrne
semanticscholar   +4 more sources

Polymerase chain reaction primers for microsatellite loci in the semi‐aquatic grasshopper, Cornops aquaticum

open access: yesMolecular Ecology Notes, 2005
AbstractThe semi‐aquatic grasshopper Cornops aquaticum is native to South America, with a distribution as far south as the Argentinian pampas and as far north as the Gulf of Mexico. This study reports the characterization of nine microsatellite loci for this species. To our knowledge, no molecular studies have been conducted on C. aquaticum, therefore,
BREDE, EDWARD G, BEEBEE, TREVOR J. C
openaire   +4 more sources

C-banding characterization of centric fusion and heterochromatin polymorphisms in the water-hyacinth grasshopper, Cornops aquaticum (Orthoptera: Acrididae)

Annals of the Entomological Society of America, 2023
Abstract The water-hyacinth grasshopper, Cornops aquaticum (Orthoptera: Acrididae), shows a clinal variation for 3 Robertsonian translocation (centric fusion) polymorphisms in the southern extreme of its wide geographical distribution. It is a Neotropical semiaquatic grasshopper that lives, feeds, and lays eggs exclusively on floating ...
P. Colombo, M. J. Bressa, M. I. Remis
semanticscholar   +3 more sources

The role of nutrients in the responses of water hyacinth, Eichhornia crassipes (Pontederiaceae) to herbivory by a grasshopper Cornops aquaticum Brüner (Orthoptera: Acrididae)

Biological Control, 2013
Abstract Environmental nutrient availability can drive and modify both plant responses to herbivory by phytophagous insects and insect feeding patterns which, in insect-weed systems, may ultimately determine whether biological control succeeds or fails.
A. Bownes, M. Hill, M. Byrne
semanticscholar   +2 more sources

Evaluating the impact of herbivory by a grasshopper, Cornops aquaticum (Orthoptera: Acrididae), on the competitive performance and biomass accumulation of water hyacinth, Eichhornia crassipes (Pontederiaceae)

Biological Control, 2010
The water hyacinth grasshopper, Cornops aquaticum is being considered for release in South Africa as a biocontrol agent for water hyacinth, Eichhornia crassipes. The release decision was to be based on C. aquaticum’s potential efficacy, in addition to its host specificity. An additive series analysis of competition between E.
A. Bownes, M. Hill, M. Byrne
semanticscholar   +2 more sources

Cornops aquaticum

CABI Compendium, 2022
This datasheet on Cornops aquaticum covers Identity, Distribution, Hosts/Species Affected, Further Information.

semanticscholar   +1 more source

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