Results 21 to 30 of about 619 (170)

Spatial Insurance of Distinct Ecological Functions. [PDF]

open access: yesEcol Lett
We present a new trait‐based framework to quantify spatial functional insurance of distinct ecological functions amongst ecological communities. We identify communities that disproportionately insure (functional sources) or depend on (functional sinks) neighbour communities.
Mouquet N   +11 more
europepmc   +2 more sources

Palaeognath birds innovate to solve a novel foraging problem [PDF]

open access: yesScientific Reports
The ability to innovate implies flexible cognition, and is used as a broad metric of intelligence. Innovation in birds has been intensively studied in the larger and more taxonomically diverse Neognathae clade (particularly crows and parrots) and ...
Fay E. Clark   +3 more
doaj   +2 more sources

The Anti-Inflammatory Effect of a γ-Lactone Isolated from Ostrich Oil of Struthio camelus (Ratite) and Its Formulated Nano-Emulsion in Formalin-Induced Paw Edema [PDF]

open access: yesMolecules, 2021
The ostrich oil of Struthio camelus (Ratite) found uses in folk medicine as an anti-inflammatory in eczema and contact dermatitis. The anti-inflammatory effect of a γ-lactone (5-hexyl-3H-furan-2-one) isolated from ostrich oil and its formulated nano ...
Salah E. M. Eltom   +10 more
doaj   +2 more sources

Modeling Dragons: Using linked mechanistic physiological and microclimate models to explore environmental, physiological, and morphological constraints on the early evolution of dinosaurs. [PDF]

open access: yesPLoS ONE, 2020
We employed the widely-tested biophysiological modeling software, Niche Mapper™ to investigate the metabolic function of the Late Triassic dinosaurs Plateosaurus and Coelophysis during global greenhouse conditions.
David M Lovelace   +4 more
doaj   +2 more sources

Structural Insights into Ratite Birds and Crocodile Eggshells for Advanced Biomaterials Design [PDF]

open access: yesACS Omega
Nerith R. Elejalde-Cadena   +4 more
doaj   +2 more sources

The Evolution and Fossil Record of Palaeognathous Birds (Neornithes: Palaeognathae)

open access: yesDiversity, 2022
The extant diversity of the avian clade Palaeognathae is composed of the iconic flightless ratites (ostriches, rheas, kiwi, emus, and cassowaries), and the volant tinamous of Central and South America.
Klara Widrig, Daniel J. Field
doaj   +1 more source

Improving Phylogenetic Signals of Mitochondrial Genes Using a New Method of Codon Degeneration

open access: yesLife, 2020
Recovering deep phylogeny is challenging with animal mitochondrial genes because of their rapid evolution. Codon degeneration decreases the phylogenetic noise and bias by aiming to achieve two objectives: (1) alleviate the bias associated with nucleotide
Xuhua Xia
doaj   +1 more source

Ontogenetic scaling patterns and functional anatomy of the pelvic limb musculature in emus (Dromaius novaehollandiae) [PDF]

open access: yesPeerJ, 2014
Emus (Dromaius novaehollandiae) are exclusively terrestrial, bipedal and cursorial ratites with some similar biomechanical characteristics to humans. Their growth rates are impressive, as their body mass increases eighty-fold from hatching to adulthood ...
Luis P. Lamas   +2 more
doaj   +2 more sources

Serosurvey of selected avian pathogens in brazilian commercial Rheas (Rhea americana) and Ostriches (Struthio camelus)

open access: yesBrazilian Journal of Poultry Science, 2009
Ratite farming of has expanded worldwide. Due to the intensive farming methods used by ratite producers, preventive medicine practices should be established.
OC de Freitas Neto   +5 more
doaj   +1 more source

Structure, ontogeny and evolution of the patellar tendon in emus (Dromaius novaehollandiae) and other palaeognath birds [PDF]

open access: yesPeerJ, 2014
The patella (kneecap) exhibits multiple evolutionary origins in birds, mammals, and lizards, and is thought to increase the mechanical advantage of the knee extensor muscles.
Sophie Regnault   +2 more
doaj   +2 more sources

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