Results 11 to 20 of about 15,069 (231)

Multiple matings affect the reproductive performance of the aphidophagous ladybird beetle, Coelophora saucia (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2010
The effect of multiple matings on the readiness with which mating occurred, fecundity, egg viability and adult longevity in the aphidophagous ladybird beetle, Coelophora saucia (Mulsant) (Coleoptera: Coccinellidae), was investigated under laboratory ...
OMKAR   +2 more
doaj   +1 more source

Stage-specific vulnerability of Harmonia axyridis (Coleoptera: Coccinellidae) to intraguild predation

open access: yesEuropean Journal of Entomology, 2023
The multicoloured Asian ladybeetle, Harmonia axyridis (Pallas), is a widespread invasive ladybird. It is considered a top predator among the aphidophagous coccinellids in North America and Europe; thus, it is supposed to be free from predation pressure ...
Geneviève LABRIE   +2 more
doaj   +1 more source

Effect of presence and semiochemicals of conspecific stages on oviposition by ladybirds (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2012
Reduced oviposition by ladybirds in the presence of tracks of fourth instar larvae owing to the presence of oviposition deterring pheromones is well established across many genera.
Geetanjali MISHRA   +3 more
doaj   +1 more source

A case of silent invasion : citizen science confirms the presence of Harmonia axyridis (Coleoptera, Coccinellidae) in Central America [PDF]

open access: yes, 2019
Harmonia axyridis (Coleoptera, Coccinellidae) is a globally invasive ladybird. It has been intentionally introduced in many countries as a biological control agent, whereas it has been unintentionally released in many others.
Haelewaters, Danny, Hiller, Thomas
core   +1 more source

Effects of different wavelengths of light on the life attributes of two aphidophagous ladybirds (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2005
The effect of different wavelengths of light, white (control; broad spectrum), blue (ca. 475 nm), yellow (ca. 570 nm) and red (ca. 650 nm), at constant intensity (195 ± 5 lux) on developmental time, reproductive and non-reproductive periods, fecundity ...
OMKAR, Geetanjali MISHRA, Kalpana SINGH
doaj   +1 more source

Stronger diversity effects with increased environmental stress : a study of multitrophic interactions between oak, powdery mildew and ladybirds [PDF]

open access: yes, 2017
Recent research has suggested that increasing neighbourhood tree species diversity may mitigate the impact of pests or pathogens by supporting the activities of their natural enemies and/or reducing the density of available hosts.
A Mougou   +52 more
core   +4 more sources

Kin recognition and avoidance of kin cannibalism by the larvae of co-occurring ladybirds: a laboratory study

open access: yesEuropean Journal of Entomology, 2005
The role of relatedness and diet in kin recognition was investigated in the aphidophagous ladybirds Propylea dissecta and Coccinella transversalis. Third instar larvae of both species exhibited kin recognition, as they were reluctant to consume related ...
Ahmad PERVEZ, Avanish K. GUPTA, OMKAR
doaj   +1 more source

Still on the same page: A gender comparison of the top 100 picture books from the UK and China published 2011–2020

open access: yesChildren &Society, EarlyView., 2023
Abstract As a primary source for the early ages, picture books guide preschool children's gender perception through stories and illustrations. However, previous studies have criticised an overall gender inequality in children's picture books. Compared to the increasing attention on gender diversity in the UK picture book industry, there has been little
Yi Li, Melissa Terras, Yongning Li
wiley   +1 more source

Mating alters the rate of development of ovarioles in the ladybird, Propylea dissecta (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2016
The influence of female mating status on ovarian development of the ladybird, Propylea dissecta (Mulsant) (Coleoptera: Coccinellidae), was investigated under laboratory conditions.
Mhd SHAHID   +3 more
doaj   +1 more source

First Occurrence of \u3ci\u3eHippodamia Variegata\u3c/i\u3e (Goeze) (Coleoptera: Coccinellidae) in Ohio [PDF]

open access: yes, 2018
(excerpt) Ladybird beetles, or coccinellids (Coleoptera: Coccinellidae), are significant arthropod predators in a variety of terrestrial ecosystems. Numerous classical biological control projects undertaken over the last 120 years in North America have ...
Bergolc, Melanie L   +6 more
core   +2 more sources

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