Results 81 to 90 of about 4,391 (197)

1-Octanol emitted by Oecophylla smaragdina weaver ants repels and deters oviposition in Queensland fruit fly

open access: yesScientific Reports, 2022
Humans have used weaver ants, Oecophylla smaragdina, as biological control agents to control insect pests in orchards for many centuries. Over recent decades, the effectiveness of weaver ants as biological control agents has been attributed in part to ...
Vivek Kempraj   +3 more
doaj   +1 more source

Grouping of Red Flour Beetles using two Different Strains [PDF]

open access: yes, 2018
In this research project I studied how the Red Flour Beetle grouped over a 10 day time period with two different strains of the Beetle. One strain was the Canadian Red Flour Beetle and the other was the Manhattan, KS Red Flour Beetle. The grouping of the
Henery, Caroline, Marshall, Jeremy
core  

Of Pheromones and Kairomones: What Receptors Mediate Innate Emotional Responses? [PDF]

open access: yesThe Anatomical Record, 2013
ABSTRACTSome chemicals elicit innate emotionally laden behavioral responses. Pheromones mediate sexual attraction, parental care or agonistic confrontation, whereas predators' kairomones elicit defensive behaviors in their preys. This essay explores the hypothesis that the detection of these semiochemicals relies on highly specific olfactory and/or ...
Lluis, Fortes-Marco   +2 more
openaire   +2 more sources

The evolution of sensitive periods beyond early ontogeny: Bridging theory and data

open access: yesFunctional Ecology, Volume 39, Issue 11, Page 2962-2973, November 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Sensitive periods, in which experiences have a large impact on phenotypic development, are most common early in ontogeny. Yet, they may also occur at later ontogenetic stages, such as adolescence.
Nicole Walasek   +2 more
wiley   +1 more source

Odorant receptor phylogeny confirms conserved channels for sex pheromone and host plant signals in tortricid moths

open access: yesEcology and Evolution, 2020
The search for mates and food is mediated by volatile chemicals. Insects sense food odorants and sex pheromones through odorant receptors (ORs) and pheromone receptors (PRs), which are expressed in olfactory sensory neurons.
Francisco Gonzalez   +8 more
doaj   +1 more source

Conserved odorant-binding proteins from aphids and eavesdropping predators. [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: The sesquiterpene (E)-ß-farnesene is the main component of the alarm pheromone system of various aphid species studied to date, including the English grain aphid, Sitobion avenae.
Sophie Vandermoten   +3 more
doaj   +1 more source

Harbingers of change: Towards a mechanistic understanding of anticipatory plasticity in animal systems

open access: yesFunctional Ecology, Volume 39, Issue 11, Page 2999-3020, November 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Phenotypic plasticity is a strategy by which animals alter behaviour, morphology and/or physiology in response to cues of current conditions to cope with environmental heterogeneity.
Lauren Petrullo   +3 more
wiley   +1 more source

Identification et perception des stimulus utilisés par l'endoparasitoïde Diadromus pulchellus lors de l'acceptation de l'Hôte (Hymenoptera : Ichneumonidae) [PDF]

open access: yes, 1999
Le principal signal chimiqueutilisé par le parasitoïde solitaireDiadromus pulchellus (Hymenoptera : Ichneumonidae)pour reconnaître et accepter son hôte, se situe au niveau du cocon de soie contenant la chrysalide d'Acrolepiopsis assectella (Lepidoptera :
Bigot, Yves   +4 more
core  

Density-dependent adjustment of inducible defenses [PDF]

open access: yes, 2015
International audiencePredation is a major factor driving evolution, and organisms have evolved adaptations increasing their survival chances. However, most defenses incur trade-offs between benefits and costs.
Duggen, Sonja   +4 more
core   +3 more sources

Time‐delayed effects on population dynamics can generate hidden costs of plasticity and enable coexistence

open access: yesFunctional Ecology, Volume 39, Issue 11, Page 3197-3209, November 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Inducible defences allow organisms to adapt to variable predation risk. Whether this is beneficial or not, however, depends on two traits: how accurately they can detect current predation risk and how rapidly they can switch between phenotypes.
Isabel Jaroschinski   +2 more
wiley   +1 more source

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