Results 1 to 10 of about 96,797 (305)

Egg discrimination along a gradient of natural variation in eggshell coloration. [PDF]

open access: yesProc Biol Sci, 2017
Accurate recognition of salient cues is critical for adaptive responses, but the underlying sensory and cognitive processes are often poorly understood. For example, hosts of avian brood parasites have long been assumed to reject foreign eggs from their nests based on the total degree of dissimilarity in colour to their own eggs, regardless of the ...
Hanley D   +6 more
europepmc   +6 more sources

Host chemical footprints induce host sex discrimination ability in egg parasitoids. [PDF]

open access: yesPLoS ONE, 2013
Trissolcus egg parasitoids, when perceiving the chemical footprints left on a substrate by pentatomid host bugs, adopt a motivated searching behaviour characterized by longer searching time on patches were signals are present.
Ezio Peri   +4 more
doaj   +6 more sources

Non-Destructive Detection Model and Device Development for Duck Egg Freshness [PDF]

open access: yesFoods
To address the low accuracy of traditional freshness detection/grading and poor adaptability to different shell colors in the duck egg industry, this study developed a non-destructive detection model and an integrated device for duck egg freshness based ...
Qian Yan   +6 more
doaj   +2 more sources

Parasitic Recognition Behavior of Telenomus remus Nixon, an Important Egg Parasitoid of Spodoptera frugiperda (J. E. Smith) [PDF]

open access: yesInsects
T. remus is an important egg parasitoid of S. frugiperda, serving as a significant role in its biological control. This study systematically examined the host discrimination behavior of T. remus.
Xiaolong Ma   +6 more
doaj   +2 more sources

How Do Oriental Reed Warblers Recognize Cuckoo Eggs? [PDF]

open access: yesEcology and Evolution
Oriental reed warblers (Acrocephalus orientalis) are favorite hosts of common cuckoos (Cuculus canorus). However, the cognitive basis and underlying mechanisms of the host egg discrimination behavior remain not well understood.
Hanlin Yan, Longwu Wang, Wei Liang
doaj   +2 more sources

Discrimination of gastrointestinal nematode eggs from crude fecal egg preparations by inhibitor-resistant conventional and real-time PCR. [PDF]

open access: yesPLoS ONE, 2013
Diagnosis of gastrointestinal nematodes relies predominantly on coproscopic methods such as flotation, Kato-Katz, McMaster or FLOTAC. Although FLOTAC allows accurate quantification, many nematode eggs can only be differentiated to genus or family level ...
Janina Demeler   +8 more
doaj   +6 more sources

Naïve hosts of avian brood parasites accept foreign eggs, whereas older hosts fine-tune foreign egg discrimination during laying. [PDF]

open access: yesFront Zool, 2014
Many potential hosts of social parasites recognize and reject foreign intruders, and reduce or altogether escape the negative impacts of parasitism. The ontogenetic basis of whether and how avian hosts recognize their own and the brood parasitic eggs remains unclear.
Moskát C, Bán M, Hauber ME.
europepmc   +5 more sources

Categorical identity signatures can reduce host error rates during brood parasitism. [PDF]

open access: yesPLoS Biology
Biological recognition is often modeled as involving discrimination of continuously-distributed (and continuously-perceived) traits according to decision thresholds. However, traits such as animal signals can be categorically distributed.
Tanmay Dixit   +7 more
doaj   +2 more sources

The limits of egg recognition: testing acceptance thresholds of American robins in response to decreasingly egg-shaped objects in the nest [PDF]

open access: yesRoyal Society Open Science, 2021
Some hosts of avian brood parasites reduce or eliminate the costs of parasitism by removing foreign eggs from the nest (rejecter hosts). In turn, even acceptor hosts typically remove most non-egg-shaped objects from the nest, including broken shells ...
Mark E. Hauber   +4 more
doaj   +1 more source

Light matters: Nest illumination alters egg rejection behavior in a cavity-nesting bird

open access: yesAvian Research, 2022
Egg discrimination by cavity-nesting birds that build nests under dim light conditions was presumed to depend on nest luminance, although this hypothesis has rarely been tested.
Canchao Yang   +2 more
doaj   +1 more source

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