Results 41 to 50 of about 2,722 (171)

Diagram of the experimental design and micrographs of healthy-looking diapausing egg of Brachionus from Dormant plasticity of rotifer diapausing eggs in response to predator kairomones

open access: yes, 2021
In freshwater ecosystems, hatching strategy of diapausing eggs (DEs) under predation risk has important ecological implication for zooplankters. Although kairomones released by predators can induce phenotypic responses of prey, hatching patterns of DEs ...
Shuang Tian (3350450)   +3 more
core   +1 more source

Deciphering Plant-Insect-Microorganism Signals for Sustainable Crop Production

open access: yesBiomolecules, 2023
Agricultural crop productivity relies on the application of chemical pesticides to reduce pest and pathogen damage. However, chemical pesticides also pose a range of ecological, environmental and economic penalties.
Gareth Thomas   +11 more
doaj   +1 more source

Seedling resistance and chemical defenses against Psylliodes chrysocephala: the roles of seed age and sinapinic acid in Sinapis alba and Brassica napus

open access: yesPest Management Science, EarlyView.
The cabbage stem flea beetle (Psylliodes chrysocephala) is a major pest of winter oilseed rape (Brassica napus). We tested B. napus and Sinapis alba seedlings for feeding resistance and underlying chemical defenses. S. alba was least damaged, while metabolite profiles revealed resistance‐linked compounds, highlighting breeding potential for insect ...
Daniel Rüde   +4 more
wiley   +1 more source

Responses of Diabrotica speciosa to a semiochemical trap characteristics

open access: yesBrazilian Archives of Biology and Technology, 2006
Responses of Diabrotica speciosa (Germar) (Coleoptera: Chrysomelidae) to a semiochemical trap characteristics were investigated in the field. The trap consisted of plastic bottles with several perforations (0.5 cm diameter and 2.0 cm distance each other)
Iara Cintra de Arruda-Gatti   +2 more
doaj   +1 more source

Endophytic fungi from two isolated Bethencourtia palmensis populations: metabolomic and bioactivity fingerprinting

open access: yesPest Management Science, EarlyView.
We compared two island populations of Bethencourtia palmensis and their culturable endophytic fungi, revealing distinct plant chemistries and a higher biopesticidal potential in the endophytic fungi from La Palma population along with high potential for the discovery of novel compounds.
Jorge Rojas López‐Menchero   +4 more
wiley   +1 more source

Identification of host kairomones from maize, Zea mays, for the maize weevil, Sitophilus zeamais

open access: yes, 2012
The maize weevil, Sitophilus zeamais, is an economically important pest of stored grains in tropical and subtropical regions of the world. The behavioral responses of adult S.
Woodcock, C. M.   +7 more
core   +1 more source

Soybean plant architecture influences the capacity of Telenomus podisi to parasitize Euschistus heros eggs: implications for field releases

open access: yesPest Management Science, EarlyView.
Increasing soybean plant architectural complexity reduces the ability of Telenomus podisi to parasitize Euschistus heros eggs, highlighting the need to adjust parasitoid release rates in the field according to plant complexity (arrow direction and thickness correspond to the increasing strength of the variable) . Abstract BACKGROUND Plant architectural
Nathália Graziele Falcão Fernandes   +3 more
wiley   +1 more source

Evaluation of Methods for Collecting Mosquitoes (Culicidae: Diptera) in Canopy and Ground Strata in the Brazilian Savanna

open access: yesTropical Medicine and Infectious Disease, 2022
The hand-net is the standard method for capturing mosquitoes with sylvatic diurnal activity in disease outbreaks in Brazil. However, occupational risks and biases related to the collectors’ abilities and attractiveness are important limitations.
Luis Filipe Mucci   +5 more
doaj   +1 more source

Resource Availability Modulates Effects of Fluorine Free Firefighting Foams

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Fluorine‐free foam (F3) alternatives that lack per‐ and polyfluoroalkyl substances (PFAS) are rapidly being adopted for firefighting operations and will be entering ecosystems. Despite this, little is known about their impact on freshwater communities.
Jack D. Morehouse   +2 more
wiley   +1 more source

Direct, but not indirect, predation‐risk cues deter larval settlement in a scyphozoan jellyfish

open access: yesJournal of Animal Ecology, EarlyView.
Predators can shape population dynamics before consumption occurs, with prey using chemical information to guide larval settlement. We show that jellyfish larvae (Aurelia coerulea) respond selectively to predation‐risk cues, reducing settlement in response to predator presence and active predation cues, but not to residual cues from previously preyed ...
Lucas H. Gimenez   +2 more
wiley   +1 more source

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