Results 111 to 120 of about 44,579 (279)

The Fish Behind Fish Feed: Rethinking Transparency Using DNA Tools

Fish and Fisheries, EarlyView.
ABSTRACT Aquaculture is now the fastest growing food sector and may be a promising solution to increasing seafood demands. Yet, carnivorous aquaculture species such as salmon and seabass continue to rely on fishmeal and fish oil (FMFO), which are derived largely from pelagic fish that are sometimes key to the food security of some coastal nations. This
Marine Cusa, Matilda Binner, Giulia Maiello, Rosalie Dowell, Stefano Mariani   +4 more
wiley   +1 more source

Feather holes and flight performance in the barn swallowHirundo rustica [PDF]

, 2018
Piotr Matyjasiak, Paweł Boniecki, Maciej Fuszara, Mateusz Okołowski, Izabella Olejniczak   +4 more
openalex   +1 more source

Environmental correlates of spatio‐temporal patterns of colour variation in a bird of prey: The common buzzard (Buteo buteo)

Ibis, EarlyView.
High colour variability in animals has been associated with adaptability to environmental change. Establishing how such variability is distributed in time and space, and identifying environmental correlates, can help understand the processes driving it.
Kaspar Delhey, Elena F. Kappers, Mihai Valcu, Christiaan Both, Bart Kempenaers   +4 more
wiley   +1 more source

Unusual pattern of skipped or shortened moulting of flight feathers in late-breeding Common Shelducks [PDF]

, 2022
Dagmar S. Cimiotti, Hermann Hötker, Stefan Garthe   +2 more
openalex   +1 more source

Combining δ2H and δ34S stable isotopes identifies diverse moult strategies in a short‐distance migratory bird

Ibis, EarlyView.
Moult strategies in birds can vary considerably even within a single species, particularly in terms of where moulting takes place. Yet, the factors underlying this variation and its consistency across years and individuals remain poorly understood. One such strategy, moult migration, involves individuals moving to a specific moulting location amid ...
Elza Marija Zacmane, Ivo Dinsbergs, Steffen Hahn, Māris Jaunzemis, Valts Jaunzemis, Oskars Keišs, Ance Priedniece, Viesturs Vīgants, Martins Briedis   +8 more
wiley   +1 more source

Rotorcraft linear simulation model. Volume 3: User's manual [PDF]

For abstract, see N78 ...
Reaser, J. S.
core   +1 more source

Nature tables: Discovering Children's interest in natural objects [PDF]

, 2007
Primary school pupils in the UK today may be less familiar with natural objects, less exposed to formal natural history teaching and have less time given to school-based observation and discussion of natural objects. This study of children’s responses to
Tomkins, Stephen, Tunnicliffe, Sue Dale
core   +1 more source

Exploring drivers and costs of partial trans‐Saharan migration in juvenile vultures

Ibis, EarlyView.
Partial migration occurs when only a subset of individuals within a population undertakes a migratory journey. The decision to migrate can be influenced by intrinsic traits (e.g. sex or physical condition) as well as by extrinsic factors (e.g. social environment or resource availability).
Eneko Arrondo, Ana Sanz‐Aguilar, Andrea Santangeli, Manuel De La Riva, David Serrano, Ainara Cortés‐Avizanda, Olivier Duriez, Juan Manuel Pérez‐García, José Antonio Sanchez‐Zapata, Martina Carrete, Juan Oltra, Antoni Margalida, Pilar Oliva‐Vidal, Guillermo Blanco, Oscar Frías, Félix Martínez, José Luis González‐Del Barrio, José María Martínez, José Antonio Donázar   +18 more
wiley   +1 more source

Tone noise of three supersonic helical tip speed propellers in a wind tunnel at 0.8 Mach number [PDF]

Three supersonic helical tip speed propellers were tested in the NASA Lewis 8- by 6-foot wind tunnel. Noise data were obtained while these propellers were operating at a simulated cruise condition.
Blaha, B. J., Dittmar, J. H., Jeracki, R. J.   +2 more
core   +1 more source

Exploring the exploration: implications of leaving or remaining at the natal site during the early stages of independence in a partially migratory bird

Ibis, EarlyView.
Despite being an important fraction of any animal population, juveniles are a severely understudied group. Juveniles often need to learn an array of skills that allow them to survive independently and do so while undertaking decisions that may impact their fitness, recruitment and survival, having therefore relevant demographic implications.
Manuela S. Rodrigues, Afonso D. Rocha, João P. Silva, Carlos Carrapato, Jaime A. Ramos, Pedro M. Araújo, José A. Alves   +6 more
wiley   +1 more source