Saemundssonia

Last updated

Saemundssonia
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Psocodea
Family: Philopteridae
Genus: Saemundssonia
Timmermann, 1956
Species

around 100 described species and subspecies

Saemundssonia is a genus of chewing lice belonging to the family Philopteridae. These lice are parasitic on aquatic birds, especially on members of the order Charadriiformes, but also on Anseriformes, Gruiformes, Pelecaniformes and Procellariiformes. Members of this genus have a broad triangular head bearing a frontal plate with a dark backwards-pointing projection.

Species

Species include:

Related Research Articles

<span class="mw-page-title-main">Charadriiformes</span> Order of birds

Charadriiformes is a diverse order of small to medium-large birds. It includes about 390 species and has members in all parts of the world. Most charadriiform birds live near water and eat invertebrates or other small animals; however, some are pelagic (seabirds), others frequent deserts, and a few are found in dense forest. Members of this group can also collectively be referred to as shorebirds.

<span class="mw-page-title-main">Ischnocera</span> Suborder of lice

The Ischnocera is a large superfamily of lice. They are mostly parasitic on birds, but including a large family parasitic on mammals. The genus Trichophilopterus is also found on mammals (lemurs), but probably belongs to the "avian Ischnocera" and represents a host switch from birds to mammals. It is a chewing louse, which feeds on the feathers and skin debris of birds. Many of the avian Ischnocera have evolved an elongated body shape. This allows them to conceal themselves between the feather shafts and avoid being dislodged during preening or flight.

<span class="mw-page-title-main">Tern</span> Family of seabirds

Terns are seabirds in the family Laridae, subfamily Sterninae, that have a worldwide distribution and are normally found near the sea, rivers, or wetlands. Terns are treated in eleven genera in a subgroup of the family Laridae, which also includes several genera of gulls and the skimmers (Rynchops). They are slender, lightly built birds with long, forked tails, narrow wings, long bills, and relatively short legs. Most species are pale grey above and white below with a contrasting black cap to the head, but the marsh terns, the black-bellied tern, the Inca tern, and some noddies have dark body plumage for at least part of the year. The sexes are identical in appearance, but young birds are readily distinguishable from adults. Terns have a non-breeding plumage, which usually involves a white forehead and much-reduced black cap.

Coextinction and cothreatened refer to the phenomenon of the loss or decline of a host species resulting in the loss or endangerment of another species that depends on it, potentially leading to cascading effects across trophic levels. The term was originated by the authors Stork and Lyal (1993) and was originally used to explain the extinction of parasitic insects following the loss of their specific hosts. The term is now used to describe the loss of any interacting species, including competition with their counterpart, and specialist herbivores with their food source. Coextinction is especially common when a keystone species goes extinct.

A bird louse is any chewing louse of order Phthiraptera which parasitizes warm-blooded animals, especially birds. Bird lice may feed on feathers, skin, or blood. They have no wings, and their biting mouth parts distinguish them from true lice, which suck blood.

<span class="mw-page-title-main">Troctomorpha</span> Suborder of booklice

Troctomorpha is one of the three major suborders of Psocodea (barklice, booklice, and parasitic lice), alongside Psocomorpha and Trogiomorpha. There are more than 30 families and 5,800 described species in Troctomorpha. The order includes parasitic lice, which are most closely related to the booklice family Liposcelididae.

<span class="mw-page-title-main">Philopteridae</span> Family of lice

The Philopteridae are a family of Ischnocera, chewing lice. They are parasitic on birds.

Saemundssonia laticaudata is an insect species first described in 1869. It is part of the Saemundssonia genus and the Philopteridae family. It is a parasite of the Greater crested tern.

<span class="mw-page-title-main">Ricinidae</span> Family of lice

The Ricinidae are a family of a larger group Amblycera of the chewing lice. All species are relatively large bodied avian ectoparasites. They typically exhibit low prevalence and low intensity. They feed on host blood which is atypical in chewing lice. Two or three genera are recognized.

<i>Harrisoniella hopkinsi</i> Species of louse

Harrisoniella hopkinsi is a species of phtilopterid louse that lives on and eats the feathers of albatrosses. The species was first described by W. Eichler in 1952.

Campanulotes is a genus of lice in the disputed, probably paraphyletic, family Philopteridae, the chewing lice, or in the family Goniodidae.

<i>Campanulotes elegans</i> Species of louse

Campanulotes elegans is a species of lice in the disputed, probably paraphyletic, family Philopteridae, the chewing lice, or in the family Goniodidae.

Strigiphilus is a genus of chewing louse in the suborder Ischnocera. It was circumscribed in 1910 by Eric Mjöberg.

<i>Rallicola</i> Genus of lice

Rallicola is a genus of chewing louse. It is an ectoparasite of rails and other birds. It was named by Thomas Harvey Johnston and Launcelot Harrison in 1911. There are two subgenera aside from the nominotypical subgenus: Aptericola, whose species are found on kiwi birds, and Huiacola, a monospecific subgenus consisting of Rallicola extinctus, once found on the huia.

<i>Quadraceps</i> Genus of lice

Quadraceps is a genus of louse. They are ectoparasites of birds in the order Charadriiformes, and the genus was circumscribed in 1939 by Theresa Clay and Richard Meinertzhagen. Infestation is believed to increase the rate of nest desertion, lowers the success rate of baby birds hatching, reduces the number of birds in the clutch, and cause birds to attract fewer mates. All in all, the survival of the nestlings is lowered drastically.

<span class="mw-page-title-main">Harrison's rule</span>

Harrison's rule is an observation in evolutionary biology by Launcelot Harrison which states that in comparisons across closely related species, host and parasite body sizes tend to covary positively.

Naubates is a genus of lice belonging to the family Philopteridae.

Columbicola is a genus of lice belonging to the family Philopteridae.

<i>Nesiotinus</i> Genus of lice

Nesiotinus is a genus of lice belonging to the family Philopteridae. The genus was first described in 1903 by Vernon Lyman Kellogg, and the type species is Nesiotinus demersus.

<i>Acidoproctus</i> Genus of lice

Acidoproctus is a genus of lice, in the family Philopteridae. They are known to be distributed across Asia and Australasia. There are two species in New Zealand.

References

Price, Roger D.; Ricardo L. Palma; Dale H. Clayton (2003). "Review of the genus Saemundssonia Timmermann (Phthiraptera: Philopteridae) from the Alcidae (Aves: Charadriiformes) including a new species and new host records" (PDF). Proceedings of the Entomological Society of Washington. 105 (4): 915–924. Archived from the original (PDF) on 2011-11-10. Retrieved 2012-04-08.