...Carol I. Miles; Wei Ping Chen; Shelley A. Adamo; Karen M. Kester; Dylan W. Miller ABSTRACT The parasitic wasp Cotesia congregata suppresses feeding in its host, the caterpillar Manduca sexta , during specific periods of wasp development. We examined both feeding behaviour and the neurophysiology...

...Myra F. Laird; Cláudia Misue Kanno; Caitlin B. Yoakum; Mariana Dutra Fogaça; Andrea B. Taylor; Callum F. Ross; Janine Chalk-Wilayto; Megan A. Holmes; Claire E. Terhune; José Américo de Oliveira ABSTRACT Bite force and gape are two important performance metrics of the feeding system...

... crabs (UC) and one of regularly fed crabs (FC), such that the only difference between the two groups is their feeding state. As in our previous experiment, we separated the unfed and fed crabs into two groups that included animals tested in the early days or later days of the experiment (see Materials...

... declare no competing or financial interests. © 2023. Published by The Company of Biologists Ltd 2023 Summary: Comparisons of biomechanical performance for species of amphidromous goby fishes during feeding, adhesion, fast-start escapes and waterfall climbing across environmental, ontogenetic...

...Arie van der Meijden; Julio César González-Gómez; María D. Pulido-Osorio; Anthony Herrel ABSTRACT Bite force is a key performance trait of the feeding system, but maximal in vivo bite force has been measured in few large mammals. The alternative, modelling of bite force from anatomy, cannot...

... by loss of body mass and major metabolic changes. Following release of fry, females resume normal feeding behavior and quickly recover body mass as they become reproductively active once again. In order to investigate the molecular underpinnings of such dramatic behavioral and metabolic changes, we...

...Amanda M. Herbert; Mason N. Dean; Adam P. Summers; Cheryl D. Wilga ABSTRACT Elasmobranch fishes (sharks, skates and rays) consume prey of a variety of sizes and properties, and the feeding mechanism typically reflects diet. Spotted ratfish, Hydrolagus colliei (Holocephali, sister group...

... songbirds move their beak during the different phases of seed processing. In this study, we used multi-view high-speed imaging to analyze the 3D movement of the beak in feeding domestic canaries. Our analysis focused on the correlation of the upper and lower beak, the frequency of mandibulation...

... of marine mammals that evolved from terrestrial carnivorans in the Oligocene (∼27 million years ago). However, pinnipeds have secondarily lost the dental innovations emblematic of mammalian and carnivoran feeding, such as a talonid basin or shearing carnassials. Modern pinnipeds do not masticate their prey...

... feeding. However, little is known about the endocrine and immune modulation in the postprandial period of ectothermic animals. This study investigated the effects of feeding on endocrine and immune responses in the bullfrog ( Lithobates catesbeianus ). Frogs were fasted for 10 days and divided into two...

... powering feeding functions during swallowing. The possibility for variation in muscle function within a single event is especially high for movements with many degrees of freedom, such as movements of the hyoid bone ( German et al., 2011 ). The hyoid in mammals is suspended by a suite of muscles...

... species, despite lower strain gradients in V. niloticus . In S. merianae , the postorbital bar is important for resistance of the cranium to feeding loads. The postorbital ligament, which in varanids partially replaces the postorbital bar, does not affect bone strain. Our results suggest...

... ostrinus (the African seedcracker finch) shows an intraspecific polymorphism in beak size and shape that is entirely diet driven and allelically determined. Three distinct morphs feed upon soft sedge seeds during times of abundance, but during lean times switch to specializing on three different species...

... surfaces rich in galactose-related carbohydrates are preferentially rejected in pseudofeces ( Pales Espinosa et al., 2016a ). A main function of gills in suspension-feeding bivalves (e.g. oyster C. virginica ), in addition to respiration, is the capture and transport of food particles ( Atkins, 1936...

..., motor control and muscle dynamics of ballistic feeding in the salamander Eurycea guttolineata . J. Exp. Biol. 217 , 3146 - 3158 . 10.1242/jeb.105437 Angilletta , M. J. Jr. and Angilletta , M. J. ( 2009 ). Thermal Adaptation: A Theoretical and Empirical Synthesis . OUP...

... in which feeding occurs (water/air) and the food type (maggot, earthworm, cricket) on the processing behavior in Triturus carnifex . We discovered that food processing, by contrast to prey capture, differed only slightly between aquatic and terrestrial habitats. However, newts adjusted the number...

... is required for establishing ethanol preference in females. Nonetheless, our results show that total food consumption and the accompanying net ethanol intake can predict the development of consumptive ethanol preference. It then follows that variables that affect feeding – including dietary properties...

... complex 3D chewing, suggesting that such mechanisms might have evolved early in the tetrapod evolution. Intraoral food processing Feeding Amphibia Kinematics Functional morphology Form and function Food processing refers to any mechanical reduction or preparation of food before...

...Catherine E. Kehl; Joey Wu; Sisi Lu; David M. Neustadter; Richard F. Drushel; Rebekah K. Smoldt; Hillel J. Chiel ABSTRACT Grasping soft, irregular material is challenging both for animals and robots. The feeding systems of many animals have adapted to this challenge. In particular, the feeding...

... and spinal cord to muscles that perform behaviors. However, studies across phyla indicate that motor neurons also contribute to the function of pattern-generating circuits. CPG Behavior Circuit Collateral Locomotion Vocalization Feeding Behaviors are produced by contractions of muscles...