Results 21 to 30 of about 4,382 (197)

Kairomone-like activity of bile and bile components: A step towards revealing the chemical nature of fish kairomone [PDF]

open access: yesScientific Reports, 2020
AbstractDespite the efforts of a number of research groups worldwide, we still have a poor understanding of the chemical nature of the fish kairomones which induce defensive morphology, life history and behavior in their planktonic prey. Bile excreted by foraging fish play a crucial role in their signaling systems.
Pijanowska, Joanna   +6 more
openaire   +2 more sources

Changes in Shape, Texture and Airflow Improve Efficiency of Monitoring Traps for Tribolium castaneum (Coleoptera: Tenebrionidae)

open access: yesInsects, 2020
The red flour beetle, Tribolium castaneum, is an important pest of stored products. We compared an existing standard commercial trap with five experimental trap designs differing from the status quo in shape, surface texture, and in forced air capability
Panamulla A. H. Sajeewani   +3 more
doaj   +1 more source

Do bacteria, not fish, produce ‘fish kairomone’? [PDF]

open access: yesJournal of Plankton Research, 1998
Fish-associated chemicals enhance phototactic downward swimming in Daphnia. If perch were treated with the antibiotic ampicillin, this enhancement was significantly decreased. Therefore, not fish, but bacteria associated with fish, seem to produce this kairomone.
Ringelberg, J., Van Gool, E.
openaire   +1 more source

Phenotypic plasticity of senescence in Daphnia under predation impact: no ageing acceleration when the perceived risk decreases with age [PDF]

open access: yesRoyal Society Open Science, 2020
Recognising the nature of the predation risk, and responding to it accurately, is crucial to fitness. Yet, even the most accurate adaptive responses to predation risk usually entail costs, both immediate and lifelong.
Barbara Pietrzak   +4 more
doaj   +1 more source

Olfactory response of Habrobracon hebetor (Hymenoptera: Braconidae) to Helicoverpa armigera and its two host plants [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2019
The volatiles emitted by herbivorous insects and herbivore-damaged plants play an important role in foraging behaviour of parasitoids that lead to host location of parasitic wasps.
Ali Asghar Seraj   +2 more
doaj   +1 more source

Controlled-Release Dispenser and Dry Trap Developments for Drosophila suzukii Detection

open access: yesFrontiers in Ecology and Evolution, 2020
The spotted wing drosophila (SWD), Drosophila suzukii, is an exotic vinegar fly originating from South-East Asia and has invaded many American and European countries.
Nicholas R. Larson   +5 more
doaj   +1 more source

The chemical code for attracting Culex mosquitoes

open access: yesFrontiers in Ecology and Evolution, 2022
Mosquitoes use chemical codes to locate and discriminate among vertebrate hosts to obtain a blood meal. Recent advances have allowed for the identification of the chemical codes used by mosquitoes to locate and discriminate humans from other vertebrate ...
Christos G. Spanoudis   +7 more
doaj   +1 more source

Field Tests of Kairomones to Increase Parasitism of Spruce Budworm (Lepidoptera: Tortricidae) Eggs by \u3ci\u3eTrichogramma\u3c/i\u3e Spp. (Hymenoptera: Trichogrammatidae) [PDF]

open access: yes, 2017
Hexane extracts of spruce budworm, Choristoneura fumiferana, moth scales, applied at 0.04 moth-gram equivalents/branch and at 0.06 moth-gram equivalents/tree, failed to increase parasitism rates of Trichogramma spp.
Jennings, Daniel T, Jones, Richard L
core   +2 more sources

Combined and single effects of pesticide carbaryl and toxic Microcystis aeruginosa on the life history of Daphnia pulicaria [PDF]

open access: yes, 2010
The combined influence of a pesticide (carbaryl) and a cyanotoxin (microcystin LR) on the life history of Daphnia pulicaria was investigated. At the beginning of the experiments animals were pulse exposed to carbaryl for 24 h and microcystins were ...
A Coors   +36 more
core   +8 more sources

Effectiveness of synthetic versus natural human volatiles as attractants for Anopheles gambiae (Diptera: Culicidae) sensu stricto [PDF]

open access: yes, 2010
Females of the African malaria vector, Anopheles gambiae Giles sensu stricto, use human volatiles to find their blood-host. Previous work has shown that ammonia, lactic acid, and aliphatic carboxylic acids significantly affect host orientation and ...
Knols, B.G.J.   +2 more
core   +2 more sources

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