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Fusing Local Shallow Features and Global Deep Features to Identify Beaks

open access: yesAnimals, 2023
Cephalopods are an essential component of marine ecosystems, which are of great significance for the development of marine resources, ecological balance, and human food supply.
Qianqian Zhao, Danfeng Zhao
exaly   +4 more sources

Age Estimation in Sepia officinalis Using Beaks and Statoliths [PDF]

open access: yesAnimals
Establishing the age of cephalopods is crucial for understanding their life history, which can then be used for assessment and management. This is particularly true for the common cuttlefish Sepia officinalis (Linnaeus, 1758), one of the most important ...
Blondine Agus   +5 more
doaj   +4 more sources

The significance of cephalopod beaks as a research tool: An update [PDF]

open access: yesFrontiers in Physiology, 2022
The use of cephalopod beaks in ecological and population dynamics studies has allowed major advances of our knowledge on the role of cephalopods in marine ecosystems in the last 60 years.
José C. Xavier   +41 more
doaj   +7 more sources

Ontogenetic Variation and Sexual Dimorphism of Beaks among Four Cephalopod Species Based on Geometric Morphometrics

open access: yesAnimals, 2023
Investigating the ontogenetic variation of biological individuals helps us to fully understand the characteristics of evolution. In order to explore the ontogenetic variation and sexual dimorphism of the beak shape in Octopus minor, Uroteuthis edulis ...
Zhou Fang
exaly   +3 more sources

Computed Tomography and a Dental Intraoral Scanner to Generate Three-Dimensional Models of the Beaks of Three Bird Species [PDF]

open access: yesVeterinary Sciences
This study aimed to assess the beaks of Neotropical birds using two scanning techniques—CT and a dental intraoral scanner—along with macroscopic analysis.
Gabriel Corrêa de Camargo   +7 more
doaj   +2 more sources

Three‐Dimensional Reconstruction of Cephalopod Beaks: A 3D Modeling Workflow Combining Prism‐Assisted Photogrammetry and Micro‐CT Validation [PDF]

open access: yesEcology and Evolution
Cephalopod beaks contain rich ecological information, but their small size and sensitivity to dehydration make accurate three‐dimensional (3D) reconstruction challenging.
Lele Xu   +6 more
doaj   +2 more sources

Allometric conservatism in the evolution of bird beaks

open access: yesEvolution Letters, 2022
Evolution can involve periods of rapid divergent adaptation and expansion in the range of diversity, but evolution can also be relatively conservative over certain timescales due to functional, genetic‐developmental, and ecological constraints.
Gavin Huw Thomas, Christopher Cooney
exaly   +2 more sources

Age and growth of Todaropsis eblanae (Ommastrephidae) through comparison of statoliths, beaks and eye lenses

open access: yesFrontiers in Marine Science
The age composition of Todaropsis eblanae from the Sardinian waters (western Mediterranean Sea) was studied for the first time through the analysis of growth increments and the comparison of three structures: statoliths, beaks and eye lenses.
Danila Cuccu   +2 more
exaly   +3 more sources

Research Note: Differences in the pecking behavior of turkey hens in proximity to the feeding pan depending on their beak condition [PDF]

open access: yesPoultry Science
: The present study aimed to provide further insight on different pecking behavior of beak-trimmed and untrimmed turkey hens in proximity to the feeding pan.
Nina Volkmann   +5 more
doaj   +2 more sources

Triassic coleoid beaks and other structures from the Calcareous Alps revisited [PDF]

open access: yesActa Palaeontologica Polonica, 2022
We performed comprehensive study of seven Carnian, Late Triassic specimens of a coleoid cephalopod Phragmoteuthis bisinuata, on which Suess based his hypothesis on “beaks of P. bisinuata”. Using SEM/EDS, we found that “beaks of P.
LARISA A. DOGUZHAEVA   +4 more
doaj   +1 more source

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