Podiceps

Taxobox
name = "Podiceps"

---

image_width = 240px
image_caption = Red-necked Grebe
regnum = Animalia
phylum = Chordata
classis = Aves
ordo = Podicipediformes
familia = Podicipedidae
genus = " Podiceps"
genus_authority = Latham, 1787
subdivision_ranks = Species
subdivision = See text.

"Podiceps" is a genus of birds in the grebe family.

It has representatives breeding in Europe, Asia, North and South America. Most northern hemisphere species migrate in winter to the coast or warmer climates.

They breed in vegetated areas of freshwater lakes, nesting on the water's edge, since their legs are set too far back for easy walking. Usually two eggs are laid, and the striped young may be carried on the adult's back.

All the genus are excellent swimmers and divers, and pursue their fish prey underwater.

Adults have striking breeding plumage, with no difference between the sexes. In winter, the plumage is subdued whites and greys.

ystematics

The Black-necked, Colombian, Silvery and Junin Flightless Grebes are very closely related and were formerly sometimes separated as the genus "Dyas". The Great Grebe has also sometimes been separated as the sole member of the genus "Podicephorus".

*Red-necked Grebe, "Podiceps grisegena"
*Great Crested Grebe, "Podiceps cristatus"
*Slavonian Grebe or Horned Grebe, "Podiceps auritus"
*Black-necked Grebe or Eared Grebe, "Podiceps nigricollis"
*Colombian Grebe, "Podiceps andinus" - extinct (1977)
*Great Grebe, "Podiceps major "
*Silvery Grebe, "Podiceps occipitalis "
*Junin Flightless Grebe, "Podiceps taczanowskii "
*Hooded Grebe, "Podiceps gallardoi"

One of the very oldest fossil grebes known to date actually belongs to this genus. Altogether - as in all grebes - the fossil record leaves much to be desired, being quite complete for the last 5 million years before present or so, but very incomplete before the Pliocene.

Fossil species of "Podiceps" are:
*"Podiceps oligocaenus" (John Day Late Oligocene/Early Miocene)
*"Podiceps" cf. "auritus" (Early Pliocene of Florida, USA) - formerly "P. pisanus, P. howardae" and "Pliodytes lanquisti"
*"Podiceps subparvus" (Middle Pliocene of California, USA)
*"Podiceps discors" (Late Pliocene of WC USA)
*"Podiceps"? sp. (Late Pliocene of WC USA) - see Murray (1967)
*"Podiceps" sp. (Early Pleistocene of Dursunlu, Turkey) - see Louchart "et al." (1998)
*"Podiceps dixi" (Late Pleistocene)
*"Podiceps parvus" (Late Pleistocene of W North America)

Among the material assigned to "P. parvus" were bones of another species, which may or may not belong into this genus (Murray 1967)Verify source|date=July 2007.

References

* Louchart, Antoine; Mourer-Chauviré, Cécile; Guleç, Erksin; Howell, Francis Clark & White, Tim D. (1998): L'avifaune de Dursunlu, Turquie, Pléistocène inférieur: climat, environnement et biogéographie. "C. R. Acad. Sci. Paris IIA" 327(5): 341-346. [French with English abridged version] DOI|10.1016/S1251-8050(98)80053-0 (HTML abstract)

* Ogilvie, Malcolm Alexander & Rose, Chris (2003): "Grebes of the World". B. Coleman, Uxbridge. ISBN 1-872842-03-8

* Harrison, Peter (1988): "Seabirds" (2nd ed.). Christopher Helm, London. ISBN 0-7470-1410-8

* Murray, Bertram G. Jr (1967): Grebes from the Late Pliocene of North America. "Condor" 69(3): 277-288. [http://elibrary.unm.edu/sora/Condor/files/issues/v069n03/p0277-p0288.pdf PDF fulltext]