Hosts of avian brood parasites have evolved egg signatures with elevated information content. [PDF]
, 2015 Hosts of brood-parasitic birds must distinguish their own eggs from parasitic mimics, or pay the cost of mistakenly raising a foreign chick. Egg discrimination is easier when different host females of the same species each lay visually distinctive eggs ...
Caves, Eleanor M +3 more
core +6 more sources
Coevolution in action: disruptive selection on egg colour in an avian brood parasite and its host. [PDF]
PLoS ONE, 2010 Trait polymorphism can evolve as a consequence of frequency-dependent selection. Coevolutionary interactions between hosts and parasites may lead to selection on both to evolve extreme phenotypes deviating from the norm, through disruptive selection.Here,
Canchao Yang +10 more
doaj +1 more source
Combining personal with social information facilitates host defences and explains why cuckoos should be secretive. [PDF]
, 2016 Individuals often vary defences in response to local predation or parasitism risk. But how should they assess threat levels when it pays their enemies to hide? For common cuckoo hosts, assessing parasitism risk is challenging: cuckoo eggs are mimetic and
Davies, Nicholas B, Thorogood, Rose
core +1 more source
Rarely parasitized and unparasitized species mob and alarm call to cuckoos: implications for sparrowhawk mimicry by brood parasitic cuckoos [PDF]
The Wilson Journal of Ornithology, 2013 Abstract Recent experiments support the long-standing hypothesis that Common Cuckoos (Cuculus canorus) are mimics of Eurasian Sparrowhawks (Accipiter nisus). Additional experiments further suggest that mimicry benefits the cuckoos by reducing the intensity of mobbing they suffer near host nests, at least in some host populations, potentially increasing
Gilbert, Gregory S, Lyon, Bruce E
openaire +2 more sources
Egg rejection and clutch phenotype variation in the plain prinia Prinia inornata
Journal of Avian Biology, 2016 Avian hosts of brood parasites can evolve anti‐parasitic defenses to recognize and reject foreign eggs from their nests. Theory predicts that higher inter‐clutch and lower intra‐clutch variation in egg appearance facilitates hosts to detect parasitic ...
Longwu Wang +5 more
doaj +1 more source
Sensors, 2020 Due to reliability and performance considerations, employing multiple software-defined networking (SDN) controllers is known as a promising technique in Wireless Sensor Networks (WSNs).
Shirin Tahmasebi +5 more
doaj +1 more source
Functional significance of cuckoo Cuculus canorus calls: responses of conspecifics, hosts and non-hosts [PDF]
PeerJ, 2018 Male cuckoos Cuculus canorus produce calls that differ in number of syllables depending on environmental conditions and presence of male and female conspecifics.
Piotr Tryjanowski +3 more
doaj +2 more sources
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 +3 more
doaj +1 more source
Russet Sparrows spot alien chicks from their nests
Avian Research, 2018 Background In coevolutionary interactions between brood parasites and their hosts, host parents are under strong selection to evolve defenses against parasitism.
Juan Huo +4 more
doaj +1 more source
Why should Common Cuckoos Cuculus canorus lay their eggs in host nests? [PDF]
, 2016 Capsule Brood parasitic Common Cuckoo Cuculus canorus chicks hatch earlier than the nestlings of their Great Reed Warbler Acrocephalus arundinaceus hosts, but hatching priority is less certain when cuckoo eggs are laid after the onset of host incubation.
Bán, Miklós +3 more
core +1 more source