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Thick eggshells of brood parasitic cowbirds protect their eggs and damage host eggs during laying
(Oxford University Press, 2018-07)
Brood parasites lay thick-shelled eggs and numerous hypotheses have been proposed to explain the significance of this trait. We examined whether thick eggshells protect the parasite egg during laying events. We used eggs ...
Female and male rufous horneros eject shiny cowbird eggs using a mental template of the size of their own eggs
(Elsevier Science, 2020-09)
Hosts of interspecific brood parasites often evolve antiparasitic defences, like the recognition and rejection of parasite's eggs. Most hosts use differences in coloration and maculation to discriminate between their own ...
Susceptibility of Nezara Viridula (L.) (Hemiptera: Pentatomidae) egg masses of different sizes to parasitism by Trissolcus Basalis (Woll.) (Hymenoptera: Platygastridae) in the field
(Sociedade Entomológica Do Brasil, 2013-11)
Egg masses of Nezara viridula (L.) are commonly parasitized by Trissolcus basalis (Woll.), and we investigated the role of size of egg masses on parasitization by T. basalis. Sentinel egg masses were exposed to parasitism ...
Incidence of parasitoids and predators on eggs of seven species of Therididae (Araneae)
(2012)
Although many characteristics of the egg sacs of spiders likely evolved to reduce the effect of parasites and predators that attack their eggs, many parasite and predator insects have become specialized on spider eggs. ...
Experimental porcine cysticercosis using infected beetles with Taenia solium eggs
(Elsevier, 2018)
Beetles are intermediate hosts for human and animal parasites, and several beetle species have been shown to carry Taenia eggs. An experimental porcine cysticercosis infection model was developed using beetles (Ammophorus ...
Brown-and-yellow marshbirds reduce their acceptance threshold of mimetic brood parasite eggs in the presence of non-mimetic eggs
(Springer Tokyo, 2016-01)
The recognition and subsequent rejection of brood parasite eggs is one of the most commonly observed defensive behaviors of the host. The brown-and-yellow marshbird (Pseudoleistes virescens) is a common host of the shiny ...
Brood parasite eggs enhance egg survivorship in a multiply parasitized host
(The Royal Society, 2012-05)
Despite the costs to avian parents of rearing brood parasitic offspring, many species do not reject foreign eggs from their nests.We show that where multiple parasitism occurs, rejection itself can be costly, by increasing ...
Strategic egg destruction by brood-parasitic cowbirds?
(Elsevier, 2014-06)
Obligate avian brood parasites do not provide direct care to their young but can indirectly increase their offspring's success in host nests. One way in which parasitic cowbirds (Molothrus sp.) could achieve this is through ...
Experimental evidence for an antipredatory function of egg rejection behaviour in a common host of the brood-parasitic shiny cowbird
(Springer, 2016-10)
Abstract: The rejection of foreign eggs is the most effective adaptation against brood parasitism in birds. Many hosts, however, show suboptimal responses towards parasitic eggs, which could reflect a compromise between ...
Influence of soil texture in the recovery of Toxocara canis eggs by a flotation method
(Elsevier B.V., 1994-06-01)
In epidemiological surveys, the evaluation of soil contamination by Toxocara canis eggs requires a quick and easy method for the isolation of parasite eggs from soil samples. The efficiency of flotation methods is influenced ...