Results 21 to 30 of about 2,822 (183)

A Derived Morphology of the Quadrate May Support a Previously Unrecognized Major Higher-Level Clade of Neoavian Birds. [PDF]

open access: yesJ Morphol
The avian quadrate plays a critical role in cranial kinesis, but few comparative studies exist of its morphological variation across higher‐level taxa. In this study, the occurrence of a markedly concave articular facet of the condylus medialis is surveyed across neornithine birds.
Mayr G.
europepmc   +2 more sources

First confirmed breeding of an invasive alien species in the lagoon of Venice (Italy): the Sacred Ibis Threskiornis aethiopicus

open access: yesRivista Italiana di Ornitologia - Research in Ornithology, 2021
After more than a decade of regular occurrence, the first confirmed breeding of the Sacred Ibis Threskiornis aethiopicus in the lagoon of Venice (Italy) was observed in 2020, in three sites.
Francesco Scarton   +4 more
doaj   +1 more source

Metabolic rate throughout the annual cycle reveals the demands of an Arctic existence in Great Cormorants [PDF]

open access: yes, 2011
Aquatic endotherms living in polar regions are faced with a multitude of challenges, including low air and water temperatures and low illumination, especially in winter. Like other endotherms from cold environments, Great Cormorants (Phalacrocorax carbo)
Ancel A.   +17 more
core   +1 more source

Foraging behavior of Brazilian cormorant, Nannopterum brasilianus (Suliformes: Phalacrocoracidae)

open access: yesZoologia (Curitiba), 2018
Although the concept of optimal foraging has been extensively discussed, foraging efficiency is difficult to assess in vertebrates. In this study, we determined the foraging efficiency of the Brazilian cormorant, Nannopterum brasilianus Gmelin, 1789, by ...
Carla Gheler-Costa   +3 more
doaj   +1 more source

Primer registro de Neodosplostomum travassoso (Digenea: Diplostomidae) en Argentina

open access: yesRevista Mexicana de Biodiversidad, 2005
SE REDESCRIBE E ILUSTRA A NEODIPLOSTOMUM TRAVASSOSI DUBOIS, 1937 (DIPLOSTOMIDAE: DIPLOSTOMINAE) CON BASE EN EJEMPLARES RECOLECTADOS DEL INTESTINO DE POLYBORUS PLANCUS (MILLER) (FALCONIDAE) Y PHALACROCORAX BRASILIANUS (GMELIN) (PHALACROCORACIDAE ...
LIA LUNASCHI, FABIANA B. DRAGO
doaj   +1 more source

A NEW EARLY PLEISTOCENE BIRD ASSOCIATION FROM PIETRAFITTA (PERUGIA, CENTRAL ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2003
We here present che preliminary results of the analysis of the fossil bird assemblages found in the lignite deposits of the Pietrafitta Mine (Perugia, Central Italy). A rich vertebrate association, mainly mammals, has been retrieved in Pietrafitta, which
GILDA ZUCCHETTA   +2 more
doaj   +1 more source

Foraging behaviour and diving pattern of Little Cormorant Phalacrocorax niger (Vieillot) (Pelecaniformes: Phalacrocoracidae) at Kallampara backwaters, Kerala, India

open access: yesJournal of Threatened Taxa, 2010
The foraging behaviour and diving patterns of Little Cormorant Phalacrocorax niger were studied during August 2005 to March 2006 by direct observation of individuals foraging at Kallampara River (11009’25.5”N & 75051’02.0”E), near the Kadalundy Bird ...
C. Zeenath, V.J. Zacharias
doaj   +1 more source

Wetting morphologies on an array of fibers of different radii [PDF]

open access: yes, 2015
We investigate the equilibrium morphology of a finite volume of liquid placed on two parallel rigid fibers of different radii. As observed for identical radii fibers, the liquid is either in a column morphology or adopts a drop shape depending on the ...
Boulogne, François   +4 more
core   +5 more sources

Insights about Diversity of Tetrabothriidae (Eucestoda) among Holarctic Alcidae (Charadriiformes): What Is \u3ci\u3eTetrabothrius jagerskioeldi\u3c/i\u3e? [PDF]

open access: yes, 2020
Tetrabothriid cestodes are characteristic helminths that infect species of seabirds globally. We begin with the exploration of the diversity of tapeworms of the genus Tetrabothrius Rudolphi, 1819 (Eucestoda: Tetrabothriidae), some of which are ...
Hoberg, Eric P.   +1 more
core   +1 more source

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