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Topic: Anseriformes

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	ADW: Anseriformes: Information
		Anseriform birds are medium to large birds (30-180 cm; 230 g -22.5 kg).
		Anseriform birds are herbivorous and feed primarily on leaves, stems, flowers, roots, seeds of aquatic vegetation.
		There appears to be support for several different sister group hypotheses: anseriforms sister to galliforms (gamebirds); anseriforms sister to ciconiiforms (herons, ibises, storks); or anseriforms sister to phoenicopteriforms (flamingos).
	animaldiversity.ummz.umich.edu /site/accounts/information/Anseriformes.html (1074 words)

	Anseriformes - Wikipedia, the free encyclopedia
		It is thought that the Anseriformes originated when two groups of specialised filter feeders diverged from the Charadriiformes (plovers, gulls and allies) by evolving different mechanisims to filter small food particles from water.
		All Anseriformes have this basic structure, but many have subsequently adopted alternative feeding strategies: geese graze on plants, the saw-billed ducks catch fish; even the screamers, which have bills that seem on first sight more like those of the game birds, still have vestigal lamellae.
		The Anseriformes and the Galliformes (pheasants etc) are ancestral to neognathous birds, and should follow ratites and tinamous in bird classification systems.
	en.wikipedia.org /wiki/Anseriformes (364 words)

	Avian photography, bird photos, birds forum and online community
		It is thought that the Anseriformes originated when two groups of specialised filter feeders diverged from the Charadriiformes (plovers, gulls and allies) by evolving different mechanisims to filter small food particles from water.
		The combination of the internal shape of the bill and a modified tongue acts as a suction pump to draw water in at the tip of the bill and expel it from the sides and rear; an array of fine filter plates called lamellae traps small particles, which are then licked off and swallowed.
		All Anseriformes have this basic structure, but many have subsequently adopted alternative feeding strategies: geese graze on plants, the saw-billed ducks catch fish; even the screamers, which have bills that seem on first sight more like those of the game birds, still have vestigal lamellae.
	www.photobirds.com /categories.php?cat_id=1 (308 words)

	A Hotlist on Aves- - Anseriformes (Site not responding. Last check: 2007-11-07)
		Anseriformes are an order of birds that consists of ducks, geese and swans.
		The category called Anseriformes has general information about this order and links that have more detailed information about the kinds of animals that are a part of this group.
		An interesting fact about Anseriformes is that their bills are used with their tongues to act as a suction pump to suck in water with their food and then expel the water out of the little cracks in their beaks.
	www.kn.att.com /wired/fil/pages/listavesdi.html (1806 words)

	Anseriformes - Definition, explanation
		It is thought that the Anseriformes originated when two groups of specialised filter feeders diverged from the Charadriiformes (plovers, gulls and allies) by evolving different mechanisims to filter small food particles from water.
		All Anseriformes have this basic structure, but many have subsequently adopted alternative feeding strategies: geese graze on plants, the saw-billed ducks catch fish; even the screamers, which have bills that seem on first sight more like those of the game birds, still have vestigal lamellae.
		The Anseriformes and the Galliformes (pheasants etc) are ancestral to neognathous birds, and should follow ratites and tinamous in bird classification systems.
	www.calsky.com /lexikon/en/txt/a/an/anseriformes.php (594 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal
		It is thought that the Anseriformes originated when the original Galloanserae (the group to which Anseriformes and Galliformes belong) split into the two main lineages.
		The Anseriformes and the Galliformes (pheasants etc) are the most primitive neognathous birds, and should follow ratites and tinamous in bird classification systems.
		This is due to the fact that almost all families and orders of aquatic birds living today either originated or underwent a major radiation during that time, making it hard to decide whether some waterbird-like bone belongs into this family or is the product of parallel evolution in a different lineage due to adaptive pressures.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Anseriformes (598 words)

	Palaeos Vertebrates 360.500 Galloanserae: Anseriformes
		In particular, they agree (a) that the anseriforms are monophyletic; (b) that the Anhimidae, Presbyornis, and the Anatidae form successive branches of the anseriform tree; and (c) that the Charadriiformes and Ciconiiformes are closely related but impossible to resolve among themselves.
		Livezey concludes that galliforms and anseriforms are united in the chicken-duck clade, Galloanserae.
		The thrust of his paper is that anseriforms are not closely related at all to galliforms.
	www.palaeos.com /Vertebrates/Units/360Galloanserae/360.500.html (1464 words)

	Presbyornithidae - EvoWiki (Site not responding. Last check: 2007-11-07)
		The consensus view is that presbyornithids are the sister clade to the Anatidae, being one of the most derived anseriform lineages (Livezey 1997, Ericson 1997).
		Critics respond by observing that many of these characters are also possesed by other potential anseriform relatives (in particular the Galliformes), or are allegedly plesiomorphic and thus of no phylogenetic relevance.
		Livezey, B.C. A phylogenetic analysis of basal Anseriformes, the fossil Presbyornis, and the interordinal relationships of waterfowl.
	www.evowiki.org /index.php/Presbyornithidae (254 words)

	3805524242: "Mechanics of the Feeding of the Mallard (Anas platryrhynchos L.; Aves, Anseriformes): The Lingual ...
		3805524242: "Mechanics of the Feeding of the Mallard (Anas platryrhynchos L.; Aves, Anseriformes): The Lingual Apparatus and the Suction-Pressure Pump Mechanism of Straining" by G. Zweers - BookFinder.com
		Mechanics of the Feeding of the Mallard (Anas platryrhynchos L.; Aves, Anseriformes):
		Mechanics of the Feeding of the Mallard (Anas platryrhynchos L.; Aves, Anseriformes): The Lingual Apparatus and the Suction-Pressure Pump Mechanism of Straining
	www.bookfinder.com /dir/i/Mechanics_of_Feeding_of_the_Mallard_Anas_Platyrhynchos_L.-Aves,_Anseriformes_/3805524242 (72 words)

	Anseriformes - EvoWiki (Site not responding. Last check: 2007-11-07)
		Anseriformes (Wagler, 1830) is an order of aquatic birds including Anhimidae (screamers), Anseranatidae (a monotypic family whose sole member is the magpie goose, Anseranas semipalmata), Anatidae (including true ducks, geese, and swans) and the extinct family Presbyornithidae.
		With a some exceptions, it is now widely believed that anseriforms share most recent common ancestry with the Galliformes, or land fowl, forming a clade referred to as Galloanserae.
		A phylogenetic analysis of basal Anseriformes, the fossil Presbyornis, and the interordinal relationships of waterfowl.
	wiki.cotch.net /index.php?title=Anseriformes&printable=yes (499 words)

	Digimorph - Anas platyrhynchos (domestic duck)
		Anseriformes, along with Galliformes, are thought to be among the earliest members of Neognathae.
		Although the sister group relationship of Anseriformes and Galliformes is very contentious (Sibley and Ahlquist, 1990; Ericson, 1996; Mindell et al., 1999; Mayr and Clarke, 2003;), the monophyly of Anseriformes is well established.
		Ericson, P. The skeletal evidence for a sister-group relationship of anseriform and galliform birds-a critical evaluation.
	www.digimorph.org /specimens/anas_platyrhynchos/skull (489 words)

	Waterfowl - Order Anseriformes
		One feature unique to most Anseriformes that is not found in any other bird order is that they moult all of their flight feathers at one time, leaving them flightless for several weeks.
		Anseriformes are well known for the ease at which they can become domesticated.
		Anseriformes often make their nests near the water's edge, although whistling ducks nest in trees and the torrent duck nests in holes in the riverbank.
	www.angelfire.com /mo2/animals1/bird/goose.html (522 words)

	Anseriformes; Ducks, Geese, Swans and Screamers
		The Anseriformes are well known because of their large size 15 kg (33 lbs) to 0.3 kg (10.5 oz), often bright colours and the ease with which they can be kept in captivity they are all very aquatic except the whistling ducks.
		All except the Anhimidae which are a very distinct group, undergo a full simultaneous moult of the flight feathers and are thus flightless for a period every year.
		This is the least aquatic of all the Anseriformes.
	www.earthlife.net /birds/anseriformes.html (2592 words)

	Anseriformes
		For the most part, specworld anseriforms resemble their Home-Earth counterparts, but some interesting distinctions can be drawn.
		These massive, flightless ducks appear to be the descendents of basal flying anseriforms and are closely allied to the anseranatids and anhimids (Australia's magpie geese and South America's screamers).
		Appearing to be a hasty "garage-kit" attempt by the Anseriformes to produce an fast antilopine herbivore, the disco duck combines the long legs of a runner with a duck's waddling gait and its nomenclatural link to the Minister of Silly Walks is no coincidence.
	www.bowdoin.edu /%7Edbensen/Spec/Anserformes.html (645 words)

	Anseriformes and Anseriforme Skulls
		Mostly comprised of ducks, geese, and swans, the order Anseriformes contains two families, 48 genera and some 160 species.
		Some members of the order Anseriformes, such as the mallard duck, have been domesticated for thousands of years.
		All Anseriformes are members of the class Aves or Birds.
	www.skullsunlimited.com /anseriformes.htm (186 words)

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