Results 31 to 40 of about 177,539 (186)
Breeding Behaviors and Kinship in the Endangered Hawaiian Stilt (Ae‘o; Himantopus mexicanus knudseni) [PDF]
A comparison of behavioral observations with genetic analyses of the Hawaiian Stilt on Molokaʻi revealed some evidence of conspecific parasitism, potential extra‐pair paternity, and inbreeding, although most observed family groups clustered together genetically, suggesting these alternative tactics may be relatively rare.
Price M +7 more
europepmc +2 more sources
Molecular Genetic Perspectives on Avian Brood Parasitism [PDF]
Advances in molecular genetic techniques have provided new approaches for addressing evolutionary questions about brood parasitic birds. We review recent studies that apply genetic data to the systematics, population biology, and social systems of avian brood parasites and suggest directions for future research.
Michael D, Sorenson, Robert B, Payne
openaire +2 more sources
Many avian species are negatively impacted by obligate avian brood parasites, which lay their eggs in the nests of host species. The yellow warbler (Setophaga petechia), which is host to the brood-parasitic brown-headed cowbird (Molothrus ater ...
Shelby L. Lawson +4 more
doaj +1 more source
Parental care is critical for offspring survival in many species. However, parental behaviors have been lost in roughly 1% of avian species known as the obligate brood parasites.
Kathleen S. Lynch +4 more
doaj +1 more source
A synthesized framework for the evolutionary origins of avian obligate brood parasitism. [PDF]
The repeated evolution of avian obligate brood parasitism (OBP) across diverse lineages represents a major evolutionary puzzle. While host-parasite coevolution has been extensively studied, the initial conditions favoring OBP emergence remain unclear. Here, we integrate theoretical modeling, paleoclimate mapping, and phylogenetic comparative analyses ...
Lyu N, Wu X, Zhang Y, Zhang BW, Liang W.
europepmc +3 more sources
The Evolution of Clutch Size in Hosts of Avian Brood Parasites [PDF]
Coevolution with avian brood parasites shapes a range of traits in their hosts, including morphology, behavior, and breeding systems. Here we explore whether brood parasitism is also associated with the evolution of host clutch size. Several studies have proposed that hosts of highly virulent parasites could decrease the costs of parasitism by evolving
Medina, Iliana +3 more
openaire +3 more sources
Avian brood parasitism is reproductively costly for hosts and selects for cognitive features enabling anti‐parasitic resistance at multiple stages of the host's breeding cycle.
Andrew G. Fulmer, Mark E. Hauber
doaj +1 more source
A Meta-Analysis of Avian Egg Traits Cueing Egg-Rejection Defenses Against Brood Parasitism
The capability of hosts to reject the odd egg from their nest is one of the key defenses against avian brood parasitism. Considerable research effort has been devoted to exploring which phenotypic traits of eggshells facilitate to cue the recognition of ...
Peter Samaš +2 more
doaj +1 more source
The spatial distribution of hosts can be a determining factor in the reproductive success of parasites. Highly aggregated hosts may offer more opportunities for reproduction but can have better defences than isolated hosts.
Iliana Medina (2522215) +1 more
core +2 more sources
The evolution of host specialisation in avian brood parasites
AbstractTraditional ecological theory predicts that specialisation can promote speciation; hence, recently derived species are specialists. However, an alternative view is that new species have broad niches, which become narrower and specialised over time.
Iliana, Medina, Naomi E, Langmore
openaire +3 more sources

