Results 231 to 240 of about 1,653,876 (262)
The Quantity-Competence Presumption: Children Use Informativeness to Calibrate Trust and Infer Speakers' Knowledge. [PDF]
Dev SciBernard C, Depierreux A, Mascaro O.
europepmc +1 more source
Every hooked beak is maintained by a prey: Ecological signal in cephalopod beak shape
Functional Ecology, 2022 AbstractBeaks are among the few hard parts of coleoid cephalopods and are informative for species identification. Although mandible shape has been shown to be adaptive in many vertebrate taxa, it has been suggested that the shape of coleoid beaks does not bear any ecological signal.
Yves Cherel +2 more
exaly +4 more sources
Feeding ecology is the primary driver of beak shape diversification in waterfowl [PDF]
Functional Ecology, 2017 Summary The diversity of beak shapes among birds is often assumed to be largely the result of adaptations to different feeding behaviors and diets. However, this assumption has only been tested for a small subset of avian diversity, primarily within the order Passeriformes.
Aaron M Olsen
exaly +3 more sources
The role of beak shape in octopodid taxonomy
African Journal of Marine Science, 1998 Beak shapes in nine species of Southern Ocean octopodids were measured using seven size-standardized ratios. The results were analysed using principal component analysis and discriminant function analysis and showthat beak shape may be used as a taxonomic character to distinguish between genera, but not between species.
Ogden, R.S. +3 more
exaly +9 more sources
Poultry Science, 2019 Infrared beak treatment (IRBT) results in a change in beak shape; however, it is unclear what effect variations in post-treatment beak shape have on young pullets. Additionally, the impact of sloughing of the treated beak tissue is not fully understood.
K Schwean-Lardner, S Struthers
exaly +5 more sources
Shared developmental programme strongly constrains beak shape diversity in songbirds [PDF]
Nature Communications, 2014 The striking diversity of bird beak shapes is an outcome of natural selection, yet the relative importance of the limitations imposed by the process of beak development on generating such variation is unclear. Untangling these factors requires mapping developmental mechanisms over a phylogeny far exceeding model systems studied thus far.
Masayoshi Tokita +2 more
exaly +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Bonemaking Protein Shapes Beaks of Darwin's Finches
Science, 2004Two research teams reporting on pages 1462 and 1465 have discovered that a protein normally associated with the development of the skull and other bones is one of the molecules that tailors the shapes of beaks.
openaire +1 more source
The Influence of the LOCOS Processing Parameters on the Shape of the Bird's Beak Structure
Journal of The Electrochemical Society, 1983Modele qualitatif tenant compte de relations entre les conditions du processus et la forme de la structure «bec d'oiseau». Parametres envisages: epaisseur de la plaquette d'oxyde, temperature d'oxydation, orientation de la pastille, pression d'oxydation.
T. ‐C. Wu, W. T. Stacy, K. N. Ritz
openaire +1 more source