Results 41 to 50 of about 13,903 (223)

Moving from perceptual to functional categories in songbirds

open access: yes, 2016
Category perception, as Herrnstein (1990) defined it, is a powerful and pervasive cognitive ability possessed by every species in which it has been adequately tested.
Kimberley A. Campbell   +5 more
core   +1 more source

MIGRATORY SONGBIRDS EXHIBIT SEASONAL MODULATION OF THE OXYGEN CASCADE

open access: yes, 2023
Data for associated paper. Migratory flight is an intensive exercise that requires birds to maintain aerobic exercise for many hours or days. Maintaining O2 supply to flight muscles is therefore important during migration, especially since recent ...
Ivy, C (via Mendeley Data)
core   +1 more source

Territoriality and site fidelity of an island endemic subspecies, the Bermuda White-eyed Vireo ( Vireo griseus bermudianus )

open access: yesJournal of Field Ornithology
Territories are areas that contain resources and are occupied by animals that defend these areas from conspecifics and heterospecifics. Territoriality in birds, which use vocal displays to repel intruders from their territories, has been thoroughly ...
Miguel A Mejias, Benjamin Misiuk
doaj   +1 more source

Germline-restricted chromosomes of the songbirds

open access: yes, 2023
Germline-restricted chromosomes (GRCs) are present in the genomes of germline cells and absent from somatic cells. A GRC is found in all species of the songbirds (Passeri) and in none of the other bird orders studied to date.
P. M. Borodin
core   +1 more source

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

open access: yesThe Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar   +5 more
wiley   +1 more source

Utterance evolution: the road to generative, combinatorial communicators

open access: yesBiological Reviews, EarlyView.
ABSTRACT Language has long been considered uniquely complex in the animal kingdom; however, animal research over the last decade has begun to challenge some long‐standing premises about exactly which language capacities are uniquely human. The task of resolving why and how complex communication systems evolve, particularly human language, has ...
Catherine Crockford   +2 more
wiley   +1 more source

Genome of a songbird unveiled [PDF]

open access: yesJournal of Biology, 2010
An international collaborative effort has recently uncovered the genome of the zebra finch, a songbird model that has provided unique insights into an array of biological phenomena.
openaire   +2 more sources

Age‐related trends in niche position and specialization in Neotropical vertebrates

open access: yesEcography, EarlyView.
Species' niche positions and breadths within a region's environmental space, measured through ecological niche factor analysis (ENFA) as marginality and specialization, can reflect evolutionary constraints related to lineage age. The ‘internal incumbency' hypothesis predicts that older species, due to competitive preemption, occupy more central niche ...
Carlos Calderón del Cid   +3 more
wiley   +1 more source

Multi‐year partner fidelity is associated with higher annual reproductive output in a biparental subtropical shorebird

open access: yesOikos, EarlyView.
Partner fidelity is a key component of reproductive strategies in socially monogamous species, yet its adaptive value remains context dependent and poorly understood outside environments with short breeding seasons. In most bird species, partners may remain together or re‐pair between successive nesting attempts, but it remains unclear which components
Kateřina Brynychová   +7 more
wiley   +1 more source

Between birch and berries: seasonal dietary niche partitioning among sympatric alpine herbivorous birds

open access: yesOikos, EarlyView.
Niche partitioning is important for the coexistence of closely related species, allowing species to reduce overlap in resource use despite shared ecological requirements. In alpine environments, harsh climatic conditions and low habitat complexity constrain opportunities for ecological segregation, making seasonal resource fluctuation especially ...
Saria Sato‐Bajracharya   +6 more
wiley   +1 more source

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