Results 71 to 80 of about 177,539 (186)

Maternal gut microbes shape the early-life assembly of gut microbiota in passerine chicks via nests

open access: yesMicrobiome, 2020
Background Knowledge is growing on how gut microbiota are established, but the effects of maternal symbiotic microbes throughout early microbial successions in birds remain elusive.
Cheng-Yu Chen   +6 more
doaj   +1 more source

The evolution of acceptance and tolerance in hosts of avian brood parasites

open access: yesBiological Reviews, 2015
ABSTRACTAvian brood parasites lay their eggs in the nests of their hosts, which rear the parasite's progeny. The costs of parasitism have selected for the evolution of defence strategies in many host species. Most research has focused on resistance strategies, where hosts minimize the number of successful parasitism events using defences such as ...
Medina, Iliana, Langmore, Naomi
openaire   +3 more sources

Analysis of Egg Variation and Foreign Egg Rejection in Rüppell’s Weaver (Ploceus galbula)

open access: yesFrontiers in Ecology and Evolution, 2021
Egg appearance is notable for its variation and as a source of recognition cues in bird species that are subject to egg-mimicking brood parasitism. Here I analyze the egg appearance of an East African weaverbird species that has variable eggs and is a ...
David C. Lahti, David C. Lahti
doaj   +1 more source

Population Status, Ecology and Conservation Challenges of Cattle Egrets (Bubulcus ibis), Especially in the Southern Africa Subregion: A Systematic Review and Evidence Synthesis

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
The Cattle Egret (Bubulcus ibis) occupies a wide range of natural and human‐modified habitats, yet research effort across its range is highly uneven. Our systematic review of 173 studies synthesises patterns in population trends, habitat use, breeding ecology, threats and ecosystem services, revealing strong geographic and thematic biases in available ...
Bhekinkosi Sibanda   +2 more
wiley   +1 more source

The importance of genetic evidence for identifying intra-specific brood parasitism

open access: yes, 2006
Intra-specific brood parasitism is widespread among birds. When genetic evidence is not available, criteria like super-normal clutch size, high within-clutch variance in egg morphology, and shorter than normal laying intervals have been used to identify ...
Richard H. Wagner   +5 more
core   +1 more source

Not Singing in the Rain: Linking Migratory Songbird Declines With Increasing Precipitation and Brood Parasitism Vulnerability

open access: yesFrontiers in Ecology and Evolution, 2020
Few empirical studies have quantified relationships between changing weather and migratory songbirds, but such studies are vital in a time of rapid climate change.
Kristen M. Rosamond   +11 more
doaj   +1 more source

Reed Warbler Hosts Do Not Fine-Tune Mobbing Defenses During the Breeding Season, Even When Cuckoos Are Rare

open access: yesFrontiers in Ecology and Evolution, 2021
Hosts of brood parasitic cuckoos often employ mobbing attacks to defend their nests and, when mobbing is costly, hosts are predicted to adjust their mobbing to match parasitism risk. While evidence exists for fine-tuned plasticity, it remains unclear why
Deryk Tolman   +8 more
doaj   +1 more source

Forest bird body condition and fruit consumption related to spotted wing Drosophila abundance and fruit parasitism

open access: yesEcosphere, Volume 17, Issue 9, September 2026.
Abstract Migratory bird species are under heavy energetic demands following the breeding season. Birds must first complete a pre‐migratory molt and build fat deposits during the postbreeding season for migration. Many birds utilize early successional habitat, consuming fruit resources for energy and using cover provided by vegetation.
Daniel P. Roche   +4 more
wiley   +1 more source

Comparing vocal structures of the parasitic and nonparasitic groups in Cuculinae

open access: yesAvian Research, 2017
Background Avian brood parasitism is a breeding strategy in which brood parasites lay their eggs in the nest of other species. This behavior is closely related to aspects of the biological evolution of the parasitic species such as reduced female body ...
Heeyoung Kim   +2 more
doaj   +1 more source

Complete egg clutches as memory template for host egg recognition

open access: yesJournal of Avian Biology, Volume 2026, Issue 5, September 2026.
Egg recognition and rejection are among the most prevalent forms of host defense against brood parasitism. However, there is a lack of comprehensive data on the ability of hosts to update and modify their egg rejection strategy throughout the breeding cycle.
Fangfang Zhang   +3 more
wiley   +1 more source

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