Results 81 to 90 of about 12,744 (224)

Free‐living Black‐tailed Godwits maintain constant intake rates across varying grassland habitat conditions by adjusting their foraging behaviour

open access: yesIbis, Volume 168, Issue 3, Page 876-889, July 2026.
Free‐living birds need to acquire enough food to fulfil their energetic needs, which may require more effort in habitats with less favourable conditions. Therefore, to maintain their necessary energy intake, birds need to adjust their foraging behaviour in response to varying habitat conditions.
Renée Veenstra   +5 more
wiley   +1 more source

Walleye Trophic Position Before and After a Gizzard Shad Extirpation

open access: yes, 2012
Walleye (Sander vitreus) are an ecologically and recreationally important sport fish species. Reduced growth and condition in walleye can occur when prey availability is limited.
Graeb, Brian D.S.   +4 more
core   +1 more source

On the gizzards of grazing birds [PDF]

open access: yesAbstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London
Abstract Since the organs of digestion in those quadrupeds which live wholly upon grass differ considerably in their construction from those of other quadrupeds, and in greater or less degree according to the different qualities of their food, it was natural to expect some correspondent peculiarities in the gizzards of those birds ...
openaire   +1 more source

Transfer quantification and surface changes of microplastics along the earthworm-chicken food chain

open access: yesCambridge Prisms: Plastics
Microplastic (MP) pollution in terrestrial ecosystems is attracting global attention. The transfer of MPs in terrestrial food chains remains poorly understood, particularly in poultry systems.
Jie Yang   +4 more
doaj   +1 more source

Growth Study of Young Gizzard Shad

open access: yes, 1962
This investigation was part of a general study aimed at shedding light upon the role of the gizzard shad (Dorosoma cepedianum) as a forage fish of certain game fish species.
Willfahrt, Gordon, Pahl, George
core   +1 more source

Digestive enzyme and gut surfactant activity of detritivorous gizzard shad (Dorosoma cepedianum)

open access: yes, 2000
Measuring digestive enzyme and surfactant activities tested specialization of gizzard shad (Dorosoma cepedianum) digestive physiology to a detritivorous feeding strategy.
Robert H Findlay, James C Smoot
core   +1 more source

A twelve-month field study of the West African Thrush Turdus pelios (Passeriformes:Muscicapidae).Part 1:food and feeding ecology

open access: yesRevista de Biología Tropical, 2004
The feeding ecology of Turdus pelios was studied from field observations and gizzard contents. Quantitative data on feeding were obtained from repeated standard "fixed route "walks and observational points at seven sites from January to December 1998 on ...
Akinsola I Akinpelu, Oluseye A Oyedipe
doaj  

Feeding Preferences of Omnivorous Gizzard Shad as Influenced by Fish Size and Zooplankton Density [PDF]

open access: yes, 1996
In Ohio reservoirs, larval gizzard shad Dorosoma cepedianum less than 30 mm total length consume only zooplankton but frequently switch to detritus as they grow longer than 30 mm. However, in laboratory studies without detritus, gizzard shad longer than
Dettmers, John M.   +2 more
core  

Superprecipitation of gizzard actomyosin, and tension in gizzard muscle skinned fibers in the presence of nucleotides other than ATP

open access: yes, 1982
1. Nucleotides which are known to be poor substrates for myosin kinase (ITP, GTP, UTP and CTP) are poor relative to ATP at producing Ca2+-sensitive superprecipitation or tension in smooth-muscle-derived experimental systems.
Kerrick, W G, Cassidy, P
core   +3 more sources

Development and application of a bioenergetics model for gizzard shad

open access: yes, 2002
I developed a bioenergetics model for gizzard shad using a combination of laboratory and literature derived parameter estimates. I estimated allometric intercepts and slopes for consumption (CA = 0.8081, CB = -0.30) and respiration (RA = 0.005, RB- -0.21)
Sebring, Scott H
core  

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