Results 21 to 30 of about 788 (163)
Egg-Inspection Frequency Predicts Egg Recognition but Not Ejection in a Cuckoo Host. [PDF]
Ecol EvolRedstarts inspected the foreign egg more frequently than they inspected their own eggs. Redstarts spent a longer time inspecting the foreign egg than viewing their own eggs. Individuals inspecting the foreign egg more often were more likely to recognize it. ABSTRACT One of the most effective strategies for avian hosts to defend against brood parasitism
Zheng G +7 more
europepmc +2 more sources
Divergent Egg-Rejection Strategies Between Laying and Incubation Periods in the Green-Backed Tit (<i>Parus monticolus</i>). [PDF]
Ecol EvolOur results demonstrate that green‐backed tits have evolved independent adaptive responses to distinct selective pressures: nest predation during egg‐laying and brood parasitism during incubation. This study provides new insights into the plasticity of host defenses and suggests that species with egg‐covering behaviors may develop specialized anti ...
Ye P, Yang C.
europepmc +2 more sources
Nest-Site Selection in Barn Swallows (<i>Hirundo rustica</i>): Patterns Consistent With the Human Proximity Hypothesis Across Three Regions of China. [PDF]
Ecol EvolWhether humans facilitate or impede avian reproduction remains a matter of debate. Barn swallows preferentially seek human protection by nesting in inhabited buildings, show a marked preference for older structures. Swallow outdoor nests are higher than indoor nests. ABSTRACT Nest‐site selection is critical to avian reproductive success. Although human
Peng C, Luo K, Yan K, Liang W.
europepmc +2 more sources
Ecological Context Constrains Host-Associated Genetic Structure in the Common Cuckoo. [PDF]
Ecol EvolHost specialization is often expected to generate population genetic structure, yet this relationship remains unclear in highly mobile species. Using the common cuckoo in South Korea, we show that genetic structure is exceptionally weak across the mainland despite ecological heterogeneity and multiple host species, with differentiation emerging only ...
Go JS +6 more
europepmc +2 more sources
Host Exploitation by Cuckoos in China: A Review and Real-Time Tracking Program for Parasitism Records. [PDF]
Integr ZoolChina is a global hotspot for cuckoo‐host diversity, with 17 cuckoo species, exploiting 142 host species. We reveal adaptive matching in body size and egg traits, along with niche partitioning among cuckoos, while identifying eight new host species.
Liu T, Yang C.
europepmc +2 more sources
Host-Specific Vocal Similarity in Fledgling Levaillant's Cuckoos and Babblers in West Africa. [PDF]
Ecol EvolYoung cuckoos can mimic host calls to gain care, but the extent of this similarity varies across hosts. Analysing fledgling begging calls across four host associations, we found that calls given during food transfer were broadly similar and did not match host calls, whereas cuckoos reared by their main West African host closely mimicked host begging ...
Redondo T +3 more
europepmc +2 more sources
Egg shape mimicry in parasitic cuckoos [PDF]
Journal of Evolutionary Biology, 2017 AbstractParasitic cuckoos lay their eggs in nests of host species. Rejection of cuckoo eggs by hosts has led to the evolution of egg mimicry by cuckoos, whereby their eggs mimic the colour and pattern of their host eggs to avoid egg recognition and rejection. There is also evidence of mimicry in egg size in some cuckoo–host systems, but currently it is
M. R. G. Attard +3 more
openaire +3 more sources
The Adaptiveness of Defence Strategies Against Cuckoo Parasitism [PDF]
Bulletin of Mathematical Biology, 2002 Host bird species of the Eurasian Cuckoo, Cuculus canorus, often display egg-discrimination behaviour but chick-rejection behaviour has never been reported. In this paper, we analyse a host-cuckoo association in which both population dynamics and evolutionary dynamics are explored in a discrete-time model.
Planqué, P +3 more
openaire +4 more sources
COEVOLUTION OF AN AVIAN HOST AND ITS PARASITIC CUCKOO [PDF]
Evolution, 2003 We use a quantitative genetic model to examine the coevolution of host and cuckoo egg characters (termed "size" as a proxy for general appearance), host discrimination, and host and cuckoo population dynamics. A host decides whether to discard an egg using a comparison of the sizes of the eggs in her nest, which changes as host and cuckoo eggs evolve ...
Maria R, Servedio, Russell, Lande
openaire +2 more sources
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