Results 91 to 100 of about 55,321 (266)

Noncrop flowering plants restore top-down herbivore control in agricultural fields [PDF]

open access: yes, 2013
Herbivore populations are regulated by bottom-up control through food availability and quality and by top-down control through natural enemies. Intensive agricultural monocultures provide abundant food to specialized herbivores and at the same time ...
Pfiffner, Lukas   +13 more
core   +1 more source

Egg Collection for Nasonia (Parasitoid Wasp) [PDF]

open access: yesCold Spring Harbor Protocols, 2009
INTRODUCTIONNasonia is a complex of four closely related species of wasps with several features that make it an excellent system for a variety of genetic studies. These include a short generation time, ease of rearing, interfertile species, visible and molecular markers, and a sequenced genome.
John H, Werren, David W, Loehlin
openaire   +2 more sources

Host location in a specialist parasitoid wasp via olfactory cues – a physiological, behavioural and morphological study

open access: yes, 2012
For successful host location, parasitoids are thought to have evolved different strategies to filter relevant olfactory cues which indicate the presence of the host. Because of their versatility in their ecology and behaviour, as well as their fine tuned
Groll, Helga
core   +1 more source

Functional variation in butterfly egg pore traits: The potential role of climate

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Immobile eggs of terrestrial animals are exposed to variable environmental conditions. Insect egg pores, critical for gas exchange (aeropyles) and fertilisation (micropyles), are ecologically important yet understudied.
Teun de Jong   +4 more
wiley   +1 more source

Rapid Establishment of a Regular Distribution of Adult Tropical Drosophila Parasitoids in a Multi-Patch Environment by Patch Defence Behaviour. [PDF]

open access: yes, 2011
Females of the larval parasitoid of Drosophila, Asobara citri, from sub-Saharan Africa, defend patches with hosts by fighting and chasing conspecific females upon encounter.
Peter W de Jong   +15 more
core   +3 more sources

Complex multitrophic species interactions and fitness costs: Intricate consequences of jasmonate and salicylate induced plant defences

open access: yesJournal of Animal Ecology, EarlyView.
This study reveals how long‐term activation of jasmonic and salicylic acid signalling reshapes arthropod communities and plant fitness across seasons. By showing that induced defences generate contrasting outcomes and cascading trade‐offs across trophic levels, it challenges the assumption that induced resistance is uniformly beneficial in natural ...
Mônica F. Kersch‐Becker   +6 more
wiley   +1 more source

A window on exoplanet dynamical histories: Rossiter-McLaughlin observations of WASP-13b and WASP-32b [PDF]

open access: yes, 2014
We present Rossiter-McLaughlin observations of WASP-13b and WASP-32b and determine the sky-projected angle between the normal of the planetary orbit and the stellar rotation axis (λ).
Armstrong, David J.   +145 more
core   +1 more source

A Novel RNA Virus in the Parasitoid Wasp Lysiphlebus fabarum: Genomic Structure, Prevalence, and Transmission [PDF]

open access: yes, 2020
We report on a novel RNA virus infecting the wasp Lysiphlebus fabarum, a parasitoid of aphids. This virus, tentatively named “Lysiphlebus fabarum virus” (LysV), was discovered in transcriptome sequences of wasps from an experimental evolution study in ...
Dennis, Alice B.   +6 more
core   +2 more sources

Offspring performance does not explain oviposition preference in the leafminer Stigmella sorbi (Lepidoptera: Nepticulidae): a tri‐trophic perspective

open access: yesInsect Science, EarlyView.
We studied oviposition site selection in a leaf‐mining moth (Stigmella sorbi) on rowan trees (Sorbus aucuparia) in northwestern Russia, assessing larval performance across different shoot types, leaf positions, and leaflets. Larval survival was highest on long vegetative shoots, yet females showed no preference for these optimal sites.
Mikhail V. Kozlov, Vitali Zverev
wiley   +1 more source

Microsatellite isolation and characterization in the beneficial parasitoid wasp Diaeretiella rapae (M'Intosh)(Hymenoptera: Braconidae: Aphidiinae)

open access: yes, 2003
The primary parasitoid wasp, Diaeretiella rapae (M'Intosh), is used as a biological control agent in insect pest management strategies to combat aphid pests, mainly on cruciferous plants.
Macdonald, C.   +5 more
core   +1 more source

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