Results 81 to 90 of about 2,300,448 (304)

Identifying drivers of breeding success in a long-distance migrant using structural equation modelling [PDF]

open access: yes, 2017
In migrant animals, conditions encountered at various times and places through- out their annual cycle may affect breeding success. Yet, most studies so far have only investigated the effect of specific parts of the annual cycle, despite the importance ...
Rien E. van Wijk   +7 more
core   +1 more source

Predominantly Terrestrial Foraging and Reproductive Gains From a High Trophic Level Diet in Roof‐Nesting Herring Gulls (Larus argentatus)

open access: yesEcology and Evolution
Wild animal species often use human‐modified environments for foraging and reproduction, but this may require dietary diversification with fitness consequences.
Simon F. Allen   +11 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Reproductive decisions in the lesser black-backed gull larus fuscus and their effects on reproductive success [PDF]

open access: yes, 1998
The effect of several fundamental reproductive 'decisions' upon reproductive success were examined over a three year period at a large, inland gullery in the Pennines.
Royle, Nicholas John
core  

Effect of refuge supplement on Audouin's gull chick survival

open access: yesScientia Marina, 2003
One of the main threats to Audouin´s gull (Larus audouinii) at Chafarinas Islands is predation on eggs and chicks by the yellow-legged gull (Larus cachinnans).
Jordi Prieto, Lluís Jover, Xavier Ruiz
doaj   +1 more source

Similar Breeding Success of Bearded Vultures in Disturbed and Undisturbed Areas Shows Evidence of Adaptation Capabilities

open access: yesHuman-Wildlife Interactions, 2020
Human activities are usually considered as disturbing factors impeding the breeding success of wild animals. Protected areas can then be set up to restrict such activities aiming to improve wildlife’s breeding success and conservation.
Vincent Comor   +2 more
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Early‐life adversity modulates growth trajectories and red blood cell mitochondrial metabolism in king penguin chicks

open access: yesJournal of Avian Biology
In many avian species, variation in breeding phenology is known to affect reproductive success. In king penguins, the breeding cycle lasts more than a year, and the start of egg‐laying extends over three months, with early‐breeders laying eggs around ...
Nina Cossin‐Sevrin   +12 more
doaj   +1 more source

Chemical State Detection and Charge Transfer in Complex Oxide Heterostructures via In Situ Auger Electron Spectroscopy

open access: yesAdvanced Functional Materials, EarlyView.
In situ Auger Electron Spectroscopy resolves oxidation states with high fidelity during the pulsed laser deposition of multivalent perovskite manganate and vanadate heterostructures. The chemical‐state signature is carried by the valence‐electron population of the transition‐metal cation, read out through the relative intensities of Auger fine ...
Harish Kumarasubramanian   +1 more
wiley   +1 more source

Sex allocation and reproductive costs in a gull with a long breeding season [PDF]

open access: yes, 2004
The Silver Gull is a small gull (265 - 450g), which exhibits sexual dimorphism, with males larger than females. It has a protracted laying period of about 8 months over the winter on Penguin Island in Western Australia.
Lamont, Christine Rae
core  

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