Results 151 to 160 of about 1,087 (183)
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Wing morphology and flight behavior of pelecaniform seabirds
Journal of Morphology, 2007AbstractThe selective pressures associated with flight are significant factors in shaping the morphology of volant forms. Tropical seabirds are of particular interest because of their long foraging bouts, which can last hundreds of kilometers in search of unpredictable (spatially and temporally) resources.
Michael L, Brewer, Fritz, Hertel
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ARBOVIRUSES IN WATER BIRDS (CICONIIFORMES, PELECANIFORMES) FROM FLORIDA
Journal of Wildlife Diseases, 1994Sera from 360 ciconiform and pelecaniform birds collected in Florida (USA) from 1974 to 1990 were tested for serum neutralizing (SN) antibodies to eastern equine encephalitis (EEE), St. Louis encephalitis (SLE), and Everglades (EVE) viruses. Serum neutralizing antibodies to EEE virus were detected in 2%, to SLE virus in 7%, and to EVE virus in none of ...
M G, Spalding +3 more
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A multilocus phylogeny of the Sulidae (Aves: Pelecaniformes)
Molecular Phylogenetics and Evolution, 2011Gene trees will often differ from the true species history, the species tree, as a result of processes such as incomplete lineage sorting. New methods such as Bayesian Estimation of the Species Tree (BEST) use the multispecies coalescent to model lineage sorting, and directly infer the species tree from multilocus DNA sequence data.
S A, Patterson +2 more
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2006
Abstract Pelecaniforms face the same formidable problems as many other seabirds and, like them, require active management based on legislation and education, global databases and monitoring, and coordinated international research (see Nettleship 1991; Nettleship and Duffy 1992). Technology offers powerful new tools not only for following
J Bryan Nelson +2 more
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Abstract Pelecaniforms face the same formidable problems as many other seabirds and, like them, require active management based on legislation and education, global databases and monitoring, and coordinated international research (see Nettleship 1991; Nettleship and Duffy 1992). Technology offers powerful new tools not only for following
J Bryan Nelson +2 more
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Ordnung: Pelecaniformes – Pelikanverwandte
2020Die traditionelle Taxonomie mit der Gliederung in 2 nahe verwandte Ordnungen, namlich die Pelecaniformes und die Ciconiiformes, wurde in den letzten Jahren vermehrt zum Thema von wissenschaftlichen Diskussionen und konnte jungst durch eine umfassende Revision neu gegliedert werden (Winkler et al. 2015).
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Beyond phylogeny: pelecaniform and ciconiiform birds, and long-term niche stability
Molecular Phylogenetics and Evolution, 2013Phylogenetic trees are a starting point for the study of further evolutionary and ecological questions. We show that for avian evolutionary relationships, improved taxon sampling, longer sequences and additional data sets are giving stability to the prediction of the grouping of pelecaniforms and ciconiiforms, thus allowing inferences to be made about ...
Gillian C, Gibb +2 more
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Earliest Pacific Basin record of the Pelagornithidae (Aves: Pelecaniformes)
Journal of Vertebrate Paleontology, 2002GERARDO GONZALEZ-BARBA', TOBIAS SCHWENNICKE', JAMES L. GOEDERT2, and LAWRENCE G. BARNES3, 1Departamento de Geologia Marina, Universidad Aut6noma de Baja California Sur, La Paz, Mexico; 2Geology Division, Burke Museum of Natural History and Culture, University of Washington, Seattle, Washington 98195, jgoedert@u.washington.edu; 3Natural History Museum ...
Gerardo González-Barba +3 more
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Molecular Ecology Resources, 2008
AbstractEighteen moderately polymorphic microsatellite loci were isolated and characterized for great frigatebirds Fregata minor. Polymorphism for the 12 dinucleotide and six tetranucleotide markers was assessed in 23 birds from a Hawaii population. Allelic diversity ranged from two to 12 (mean 5.9), with observed heterozygosity from 0.304 to 0.956 ...
Donald C, Dearborn +2 more
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AbstractEighteen moderately polymorphic microsatellite loci were isolated and characterized for great frigatebirds Fregata minor. Polymorphism for the 12 dinucleotide and six tetranucleotide markers was assessed in 23 birds from a Hawaii population. Allelic diversity ranged from two to 12 (mean 5.9), with observed heterozygosity from 0.304 to 0.956 ...
Donald C, Dearborn +2 more
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Notes on the Phylogeny of the Pelecaniformes
The Auk, 1947CERTAIN aspects of the phylogeny of the order Pelecaniformes are obscured by the arrangement of its three living suborders in fi•e standard classifications. The sequence as given by Wetmore (1940) and Peters (1931)is: PHAJ•THONTES (Tropic-birds), PELECANI (Pelicans, Boobies, Cormorants, Snake-birds), and FREGATAE (Frigatebirds).
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Forelimb skeletal morphology and flight mode evolution in pelecaniform birds
Zoology, 2010The total length and mid-shaft diameters of wing elements of 50 species of pelecaniform birds were examined to investigate how forelimb skeletal morphology varies with body size and flight mode within this group. Pelecaniforms were assigned to flight mode categories based on primary habitual behaviors (soar, flap-glide, continuous flap). Allometric and
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