Pelecaniformes


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Pelecaniformes

[‚pel·ə‚kan·ə′fȯr‚mēz]
(vertebrate zoology)
An order of aquatic, fish-eating birds characterized by having all four toes joined by webs.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Pelecaniformes

 

an order of swimming birds. The legs are short, with all four toes united by a natatorial web. The order includes six families: gannets and boobies, tropic birds, frigate birds, cormorants, darters and anhingas, and pelicans. These birds inhabit the shores of oceans and seas and the banks of large rivers and lakes over almost all the terrestrial globe, except for the polar regions. In the USSR there are representatives of two families: cormorants (six species) and pelicans (two species). The most numerous colonies of cormorants and pelicans are found on the shores of the Caspian and Aral seas; large colonies of cormorants are found in the Far East (Pacific coast).

Pelecaniformes birds feed mainly on fish. Cormorants and anhingas are excellent swimmers and divers; gannets and tropic birds dive, throwing themselves into the water from flight (they swim reluctantly); pelicans swim well but cannot dive. Pelicans, frigate birds, and gannets are capable of soaring. Most of the birds in this order move poorly on the ground. Their nests are usually near the water (cormorants’ nests are on trees and rocks; pelicans’ are on reed-overgrown banks). They nest in large colonies. Both females and males sit on the eggs. The fledglings are hatched blind and naked, and they grow slowly. On some tropical islands where there are colonies of Pelecaniformes, deposits of guano are formed. In the south of the USSR in some places cormorants harm the fishing industry; in some places they are used in small quantities commercially for their meat.

REFERENCE

Tugarinov, A. Ia. “Veslonogie, aistoobraznye, flamingo.” In Fauna SSSR: Ptitsy, vol. 1, issue 3. Moscow-Leningrad, 1947.

N. N. KARMASHEV

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Pelecaniformes: Ardea alba "garza blanca grande", es la garza mas grande que habita en los pantanos, comun durante todo el ano en las lagunas y en los totorales.
IDENTIFICATION OF EUSTRONGYLIDES TUBIFEX (NEMATODA: DIOCTOPHYMATIDAE) IN A GREEN-BACKED HERON (BUTORIDES STRIATA, PELECANIFORME: ARDEIDAE) IN THE WETLAND EL BANCO, MICHOACAN, MEXICO
tubifex (Nitzsch and Rudolphi, 1819) Jagerskiold, 1909, are known to occur in the New World; the definitive hosts of the former are piscivorous birds belonging to the orders Ciconiiformes and Pelecaniformes and that of the latter are Gaviiformes, Anseriformes, Ciconiiformes and Podicipediformes birds.
Pelecaniformes (pelicans, tropicbirds, cormorants, frigatebirds, anhingas, gannets).
The order of Pelecaniformes is composed of families Ardeidae (Leach, 1820), Thereskiomithidae (Poche, 1904), and Pelecanidae (Rafinesque, 1891) (CRBRO, 2011).
Several species from the orders Ciconiiformes, Galliformes, Passeriformes, Gruiformes, Coraciiformes, and Pelecaniformes were affected during the outbreak.
Distribucion espacio-temporal de aves Pelecaniformes en la salina de Guerrero Negro, Baja California Sur, Mexico.
Water birds (according to Sonobe and Usui 1993) of the following orders: Pelecaniformes, Ciconiiformes, Anseriformes, Gruiformes and Charadriiformes.