Results 21 to 30 of about 1,820,678 (241)

A review of the cues used for rejecting foreign eggs from the nest by the Eurasian blackbird (Turdus merula)

open access: yesEcology and Evolution, 2022
Avian brood parasitism is reproductively costly for hosts and selects for cognitive features enabling anti‐parasitic resistance at multiple stages of the host's breeding cycle.
Andrew G. Fulmer, Mark E. Hauber
doaj   +1 more source

Deep learning enhanced terahertz imaging of silkworm eggs development

open access: yesiScience, 2021
Summary: Terahertz (THz) technology lays the foundation for next-generation high-speed wireless communication, nondestructive testing, food safety inspecting, and medical applications. When THz technology is integrated by artificial intelligence (AI), it
Hongting Xiong   +9 more
doaj   +1 more source

Egg rejection and egg recognition mechanisms in Oriental Reed Warblers

open access: yesAvian Research, 2021
Background Nest parasitism by cuckoos (Cuculus spp.) results in enormous reproductive failure and forces hosts to evolve antiparasitic strategies, i.e., recognition of own eggs and rejection of cuckoo eggs.
Laikun Ma, Wei Liang
doaj   +1 more source

Gradual changes in model shape affect egg-directed behaviours by parasitic shiny cowbirds Molothrus bonariensis in captivity

open access: yesRoyal Society Open Science, 2023
Eggs are critically important for avian reproduction as all birds are oviparous. Accordingly, the recognition and care of own eggs represent the cornerstones of avian breeding, whereas the elimination of foreign objects, including brood-parasitic eggs ...
Ignacio Crudele   +3 more
doaj   +1 more source

Potential cuckoo hosts have similar egg rejection rates to parasitized host species

open access: yesAvian Research, 2020
Background Thrush species are rarely parasitized by cuckoos, but many have a strong egg recognition ability. To date, there is a limited understanding of the relationship between host egg rejection and cuckoo parasitism rate.
Tingting Yi, Yue-Hua Sun, Wei Liang
doaj   +1 more source

Insect egg-induced innate immunity: Who benefits?

open access: yesPLoS Pathogens, 2023
Plants perceive the presence of insect eggs deposited on leaves as a cue of imminent herbivore attack. Consequential plant signaling events include the accumulation of salicylic acid and reactive oxygen species, transcriptional reprogramming, and cell ...
Elia Stahl   +2 more
doaj   +2 more sources

The Perceptual and Cognitive Processes That Govern Egg Rejection in Hosts of Avian Brood Parasites

open access: yesFrontiers in Ecology and Evolution, 2021
Hosts of avian brood parasites are under intense selective pressure to prevent or reduce the cost of parasitism. Many have evolved refined egg discrimination abilities, which can select for eggshell mimicry in their parasite.
Daniel Hanley   +3 more
doaj   +1 more source

A Meta-Analysis of Avian Egg Traits Cueing Egg-Rejection Defenses Against Brood Parasitism

open access: yesFrontiers in Ecology and Evolution, 2021
The capability of hosts to reject the odd egg from their nest is one of the key defenses against avian brood parasitism. Considerable research effort has been devoted to exploring which phenotypic traits of eggshells facilitate to cue the recognition of ...
Peter Samaš   +2 more
doaj   +1 more source

Mechanisms of Sperm–Egg Interactions: What Ascidian Fertilization Research Has Taught Us

open access: yesCells, 2022
Fertilization is an essential process in terrestrial organisms for creating a new organism with genetic diversity. Before gamete fusion, several steps are required to achieve successful fertilization.
Hitoshi Sawada, Takako Saito
doaj   +1 more source

Egg recognition in Cinereous Tits (Parus cinereus): eggshell spots matter

open access: yesAvian Research, 2019
Background Brood parasitic birds such as cuckoos (Cuculus spp.) can reduce their host’s reproductive success. Such selection pressure on the hosts has driven the evolution of defense behaviors such as egg rejection against cuckoo parasitism. Studies have
Jianping Liu   +4 more
doaj   +1 more source

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