Results 21 to 30 of about 245,686 (291)

Host sexual dimorphism and parasite adaptation [PDF]

, 2012
In species with separate sexes, parasite prevalence and disease expression is often different between males and females. This effect has mainly been attributed to sex differences in host traits, such as immune response.
Duneau, D., Ebert, Dieter, Dieter Ebert, David Duneau, Duneau David, Ebert Dieter, Ebert D, Duneau D   +7 more
core   +2 more sources

Unscrambling variation in avian eggshell colour and patterning in a continent-wide study [PDF]

Royal Society Open Science, 2019
The evolutionary drivers underlying marked variation in the pigmentation of eggs within many avian species remains unclear. The leading hypotheses proposed to explain such variation advocate the roles of genetic differences, signalling and/or structural ...
Kiara L. L'Herpiniere, Louis G. O'Neill, Andrew F. Russell, Daisy Englert Duursma, Simon C. Griffith   +4 more
doaj   +1 more source

The Evolution of Predator Resemblance in Avian Brood Parasites

Frontiers in Ecology and Evolution, 2021
Predators have profound effects on prey behavior and some adult brood parasites use predator resemblance to exploit the antipredator defenses of their hosts.
Jennifer E. York, Jennifer E. York
doaj   +1 more source

Experimental shifts in intraclutch egg color variation do not affect egg rejection in a host of a non-egg-mimetic avian brood parasite.

PLoS ONE, 2015
Avian brood parasites lay their eggs in the nests of other birds, and impose the costs associated with rearing parasitic young onto these hosts. Many hosts of brood parasites defend against parasitism by removing foreign eggs from the nest.
Rebecca Croston, Mark E Hauber
doaj   +1 more source

Multiparasitism and repeated parasitism by the great spotted cuckoo Clamator glandarius on its main host, the magpie Pica pica: effects on reproductive success, nest desertion and nest predation

Journal of Avian Biology, 2023
Brood parasites are expected to lay only one egg per parasitized nest, as the existence of several parasitic nestlings in a brood increases competition and can lead the starvation of some of them.
Manuel Soler, Tomás Pérez‐Contreras, Francisco Ruiz‐Raya   +2 more
doaj   +1 more source

Behavioral and Acoustic Responses of the Oriental Reed Warbler (Acrocephalus orientalis), at Egg and Nestling Stages, to the Common Cuckoo (Cuculus canorus)

Frontiers in Ecology and Evolution, 2021
Cuckoo nest parasites lay eggs in host nests and thereby transfer all reproduction costs to the hosts. This greatly reduces host fitness. Parasitism has selected for the evolution of anti-parasitic strategies in hosts, including nest defense. The dynamic
Jiaojiao Wang, Laikun Ma, Xiangyang Chen, Canchao Yang   +3 more
doaj   +1 more source

Separable solutions to a brood-parasite dynamics model

Universal Journal of Mathematics and Applications, 2018
Common Cuckoo is a brood-parasite which lays its egg in the nest of other bird species and use them to raise its young. We present a Common Cuckoo and a host bird interaction deterministic model taking into account maternal care of offspring. The model
Vladas Skakauskas
doaj   +1 more source

Transforming growth factor-β signalling regulates protoscolex formation in the Echinococcus multilocularis metacestode

Frontiers in Cellular and Infection Microbiology, 2023
The lethal zoonosis alveolar echinococcosis (AE) is caused by tumor-like, infiltrative growth of the metacestode larval stage of the tapeworm Echinococcus multilocularis.
Marc Kaethner, Kerstin Epping, Peter Bernthaler, Kilian Rudolf, Irena Thomann, Nadine Leitschuh, Nadine Leitschuh, Monika Bergmann, Markus Spiliotis, Uriel Koziol, Uriel Koziol, Klaus Brehm   +11 more
doaj   +1 more source

Supplementary Material from Host and brood parasite coevolutionary interactions covary with comparative patterns of the avian visual system

, 2021
In coevolutionary arms-races, reciprocal ecological interactions and their fitness impacts shape the course of phenotypic evolution. The classic example of avian host–brood parasite interactions selects for host recognition and rejection of increasingly ...
Mark E. Hauber (10015119), Ian J. Ausprey (10781688)   +1 more
core   +1 more source

Region-specific neuron recruitment in the hippocampus of brown-headed cowbirds Molothrus ater (Passeriformes: Icteridae)

The European Zoological Journal, 2018
Avian brood parasites do not raise their own young. Rather, they leave eggs and offspring in nests of other species. Finding potential nests to parasitize is mostly up to the female and requires enhanced spatial memory as the female must remember nest ...
Kathleen S. Lynch
doaj   +1 more source