Results 61 to 70 of about 1,803,392 (346)

Moving I`iwi (Vestiaria coccinea) as a Surrogate for Future Translocations of Endangered `Akohekohe (Palmeria dolei) [PDF]

open access: yes, 2010
Translocations often play an important role in the recovery of endangered species. To assess feasibility for translocation of endangered `Akohekohe (Palmeria dolei), we conducted an experimental translocation of I`iwi (Vestiaria coccinea) from east to ...
Becker, Dusti   +3 more
core   +1 more source

Using DNA metabarcoding to explore spatial variation in diet across European Hawfinch populations

open access: yesJournal of Field Ornithology, 2023
The investigation of diet in avian species is essential for understanding their ecology and local adaptations, as well as long-term conservation. This can be particularly challenging because of the wide distribution and high ecological plasticity of many
Ewan H. Stenhouse   +5 more
doaj  

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

open access: yesAdvanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid   +13 more
wiley   +1 more source

The magnetite-based receptors in the beak of birds and their role in avian navigation [PDF]

open access: yes, 2012
Iron-rich structures have been described in the beak of homing pigeons, chickens and several species of migratory birds and interpreted as magnetoreceptors.
Wiltschko, Roswitha, Wiltschko, Wolfgang
core   +1 more source

Bioinspired Design of a Wet‐Adhesive Cornea Glue Based on Recombinant Human Protein Networks

open access: yesAdvanced Functional Materials, EarlyView.
Natures protein‐based high performance materials e.g. elastin, silk and muscle proteins have been mimicked by a new protein‐hybrid material based on redesigned human partial sequences only, showing high wet‐adhesiveness and elasticity for biomedical applications.
Anna Resch   +17 more
wiley   +1 more source

Steering the multipotent mesenchymal cells towards an anti-inflammatory and osteogenic bias via photobiomodulation therapy: How to kill two birds with one stone [PDF]

open access: gold, 2022
Andrea Amaroli   +6 more
openalex   +1 more source

To peck or not to peck: the influence of early-life social environment on response inhibition and impulsive aggression in Japanese quails

open access: yesRoyal Society Open Science
Deficits in response inhibition (RI; i.e. the ability to suppress inappropriate responses) may contribute to increased impulsive aggression (IA; i.e. unplanned behaviours that harm others).
Alizée Vernouillet   +9 more
doaj   +1 more source

Evidence that birds sleep in mid-flight

open access: yesNature Communications, 2016
Many birds fly non-stop for days or longer, but do they sleep in flight and if so, how? It is commonly assumed that flying birds maintain environmental awareness and aerodynamic control by sleeping with only one eye closed and one cerebral hemisphere at ...
N. Rattenborg   +7 more
semanticscholar   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

Tick Infestation in Migratory Birds of the Vistula River Valley, Poland [PDF]

open access: gold, 2022
Zbigniew Zając   +7 more
openalex   +1 more source

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