Results 101 to 110 of about 334,744 (300)

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

The Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li, Mike Schindler, Martha Paskin, Venkata A. Surapaneni, Elliott Scott, Sabine Hauert, Nicholas Payne, David E. Cade, Jeremy A. Goldbogen, Frederik H. Mollen, Daniel Baum, Sean Hanna, Mason N. Dean   +12 more
wiley   +1 more source

A Multiscale Review of Behavioral Variation in Collective Foraging Behavior in Honey Bees

Insects, 2019
The emergence of collective behavior from local interactions is a widespread phenomenon in social groups. Previous models of collective behavior have largely overlooked the impact of variation among individuals within the group on collective dynamics ...
Natalie J. Lemanski, Chelsea N. Cook, Brian H. Smith, Noa Pinter-Wollman   +3 more
doaj   +1 more source

Analysis of Dynamic Task Allocation in Multi-Robot Systems

, 2006
Dynamic task allocation is an essential requirement for multi-robot systems operating in unknown dynamic environments. It allows robots to change their behavior in response to environmental changes or actions of other robots in order to improve overall ...
Galstyan, Aram, Jones, Chris, Lerman, Kristina, Mataric, Maja J   +3 more
core   +5 more sources

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds

The Anatomical Record, EarlyView.
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Apolline Alfsen, Christian de Muizon, Olivier Lambert, Giovanni Bianucci, Antonia R. Kaffler, Matthew R. McCurry, Alexandra Houssaye, Rafael M. Varas‐Malca, Rodolfo Salas‐Gismondi, Oliver Hampe, Eli Amson   +10 more
wiley   +1 more source

Ecología reproductiva del bobo café (Sula leucogaster) en Morros El Potosí, Guerrero, México Reproductive ecology of Brown Boobies (Sula leucogaster) at Morros El Potosí, Guerrero, Mexico

Revista Mexicana de Biodiversidad, 2009
Entre enero y junio de 2006 se estudió la ecología reproductiva del bobo café (Sula leucogaster) en Morros El Potosí, Guerrero. Determinamos parámetros reproductivos, profundidad máxima de buceo, duración de viajes de forrajeo y porcentaje de atención al
Juan Pablo Ceyca, Eric Mellink
doaj  

Predation effects on mean time to extinction under demographic stochasticity

, 2012
Methods for predicting the probability and timing of a species' extinction are typically based on a combination of theoretical models and empirical data, and focus on single species population dynamics.
Abrams, Allesina, Assaf, Bartlett, Bascompte, Black, Brook, Brose, Brose, Drossel, Dunne, Ebenman, Foley, Gardinier, Gian Marco Palamara, Gillespie, Gustav W. Delius, Hammill, Hanski, Hofbauer, Holling, Holling, Jeschke, Jeschke, Kramer, Lande, Lande, Liebhold, Mace, Matthew J. Smith, May, McCann, McKane, McKane, Nisbet, Nåsell, Ovaskainen, Owen L. Petchey, Parker, Powell, Prowse, Purvis, Rall, Real, Sabo, Sabo, Sahasrabudhe, Smout, Spitze, Turchin, Vucic-Pestic, Williams, Witting   +52 more
core   +1 more source

The Effects of Intraspecific Variation of Crayfish Behavior on Nutrient Cycling in Aquatic Environments [PDF]

, 2020
Human activities are rapidly altering species traits at a global scale. Yet, there remains a critical need to determine whether trait variation within species affects ecosystem responses to global change. In particular, intraspecific variation in feeding
Acheson, Paul
core  

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

The Anatomical Record, EarlyView.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza, André Luiz Quagliatto Santos, Marcelo Abidu‐Figueiredo, Thaís Aparecida Silva, Rodrigo Ananias Barreiros Silva, Paulo de Souza‐Junior   +5 more
wiley   +1 more source

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

The Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen, Ivo Jacobs, Kristina Kverková, Lona Lalić, Alexandra Polonyiová, Patrik Stehlík, Stephan A. Reber, Mathias Osvath   +7 more
wiley   +1 more source

Meals for two: foraging activity of the butterflyfish Chaetodon Striatus (perciformes) in southeast Brazil

Brazilian Journal of Biology
The banded butterflyfish (Chaetodon striatus) from the tropical and subtropical western Atlantic is a territorial, diurnal forager on benthic invertebrates. It is usually seen moving singly or in pairs, a few meters above the sea floor.
R. M. Bonaldo, J. P. Krajewski, I. Sazima   +2 more
doaj   +1 more source