Results 81 to 90 of about 170,616 (303)

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

Exploitation, secondary extinction and the altered trophic structure of Jamaican coral reefs [PDF]

, 2010
Coral reef communities of the Greater Antilles in the Caribbean have a long history of anthropogenic disturbance, driven by the exploitation for food of both vertebrate and invertebrate species.
Peter D. Roopnarine, Rachel A. Hertog
core   +1 more source

Association patterns and foraging behaviour in natural and artificial guppy shoals [PDF]

, 2008
Animal groups are often nonrandom assemblages of individuals that tend to be assorted by factors such as sex, body size, relatedness and familiarity.
Chapman, Ben B., Croft, Darren P., Dyer, John R. G., Dyer, John R.G., Kelley, Jennifer L., Krause, Jens, Laland, Kevin N., Morrell, Lesley J.   +7 more
core   +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

Adélie penguin foraging location predicted by tidal regime switching. [PDF]

PLoS ONE, 2013
Penguin foraging and breeding success depend on broad-scale environmental and local-scale hydrographic features of their habitat. We investigated the effect of local tidal currents on a population of Adélie penguins on Humble Is., Antarctica.
Matthew J Oliver, Andrew Irwin, Mark A Moline, William Fraser, Donna Patterson, Oscar Schofield, Josh Kohut   +6 more
doaj   +1 more source

The emergence of leaders and followers in foraging pairs when the qualities of individuals differ [PDF]

, 2008
Background Foraging in groups offers animals a number of advantages, such as increasing their likelihood of finding food or detecting and avoiding predators.
Cowlishaw, G, Johnstone, RA, Pettifor, RA, Rands, SA, Rowcliffe, JM   +4 more
core   +2 more sources

Sensory Ecology: Noise Annoys Foraging Bats [PDF]

Current Biology, 2008
(Uploaded by Plazi for the Bat Literature Project) No abstract provided.
openaire   +3 more sources

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

The Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis, Keila Xavier Magalhães, Thiago Nilton A. Pereira, Janice Muriel‐Cunha, Alberto Akama   +4 more
wiley   +1 more source

Impacts across levels: Resource biodiversity is affected by predation and competition pressure on the forager level

Ecosphere
Foraging animals create nonrandom patterns of diversity and abundance within resource communities. Perceiving predation pressure and intraspecific competition for food resources, foragers can alter space use patterns, foraging intensity, and preference ...
Molly Gilmour, Filippa Erixon, Jana Eccard   +2 more
doaj   +1 more source

Developmental changes in foraging-predator avoidance trade-offs in larval lumpfish Cyclopterus lumpus [PDF]

, 1991
The 5-12 wk old larvae increased time spent clinging to a surface in the presence of a predator, trading-off time available for foraging in order to reduce the probability of attack.
Brown, Joseph A., Williams, P. James
core   +1 more source