@article {40279, title = {Taxonomic importance of first-instar chewing lice (Phthiraptera: Trichodectidae) from pocket gophers (Rodentia: Geomyidae)}, journal = {Annals of the Entomological Society of America}, volume = {89}, year = {1996}, month = {1996}, pages = {510 - 518}, abstract = {

A study of 1st-instar nymphs representing 119 of the 122 currently recognized taxa of pocket gopher lice of the genera Geomydoecus and Thomomydoecus resulted in the recognition of numerous valuable taxonomic features enabling reliable differentiation for a surprisingly large number of these lice. These characters are discussed primarily at the species complex level, with mention of specific differences where pertinent. A key is given for the identification of the currently recognized 26 complexes of pocket gopher lice.

}, keywords = {complex, geomydoecus, Mallophaga, mexico, rodentia, taxonomy, thomomydoecus, thomomys, U.S.A.}, url = {http://www.phthiraptera.info/sites/phthiraptera.info/files/2985.pdf}, author = {Roger D. Price and Hellenthal,Ronald A.} } @article {40261, title = {Bartonella (Rochalimaea) quintana infections}, journal = {Clinical Microbiology Reviews}, volume = {9}, year = {1996}, month = {1996}, pages = {273 - \&}, abstract = {Bartonella (formerly Rochalimaea) quintana is the etiological agent of trench fever; a disease extensively reported during the World Wars. Recent molecular biology approaches have allowed dramatic Extension of the spectrum of Bartonella infections. B. quintana is I now also recognized as an etiological agent of fever and bacteremia, endocarditis, bacillary angiomatosis, and chronic lymphadenopathy. Human immunodeficiency, virus-infected patients and/or homeless people are the most vulnerable to infection. Poverty and louse infestation were the main epidemiological factors associated with B. quintana infections during wartime. Although poverty and chronic alcoholism have been associated with modern cases of trench fever and bacteremia due to B. quintana in Europe and the United States, vectors for B. quintana have not been clearly identified and B. quintana has not been isolated from modern-day lice. Microscopic bacillary angiomatosis lesions are characterized by tumor-like capillary lobules, with proliferating endothelial cells. In vitro experiments have shown that B. quintana survives within endothelial cells and stimulates cell proliferation. These observations, together with the finding that lesions may regress when antibiotic therapy is administered, strongly suggest that B. quintana itself stimulates angiogenesis. Bartonella infections are characterized by a high frequency of relapses after brief courses of antibiotic therapy. It is to be noted that in vitro, although Bartonella species air highly susceptible to antibiotics, only the aminoglycosides have proved to be bactericidal. However; the most effective antibiotic regimen for Bartonella infections remains to be established.}, keywords = {AIDS, angiomatosis, bacillary, cat, complex, disease, domestic, Phylogeny, vascular}, author = {Maurin,M. and Didier Raoult} } @article {40062, title = {Comparing life histories using phylogenies}, journal = {Philosophical Transactions of the Royal Society of London, Series B}, volume = {332}, year = {1991}, month = {1991}, pages = {31 - 39}, abstract = {The comparative method as recently developed can be used to identify statistically independent instances of life-history evolution. When life-history traits show evidence for correlated evolutionary change with each other or with ecological differences, it is often possible to single out the trade-offs and selective forces responsible for the evolution of life-history diversity. Suites of life-history characters often evolve in concert, and recent optimality models incorporating few variables show promise for interpreting that evolution in terms of few selective forces. Because hosts provide well-defined environments for their parasites, when host-parasite phylogenies are congruent it is possible to test ideas about the evolution of particular life-history and size-related traits.}, keywords = {bird, body, coevolution, complex, food habits, Geomyidae, Mallophaga, mammal, reproduction, rodentia, size, thomomys, trichodectidae}, author = {Harvey,P. H. and Keymer,A. E.} } @article {39783, title = {Parasitism of plant and animal hybrids: are facts and fates the same?}, journal = {Ecology}, volume = {80}, year = {1999}, month = {1999}, pages = {392 - 406}, abstract = {This review analyzes the few studies on parasitism in natural animal hybrid zones, and compares the results to genetic and evolutionary hypotheses tested on plant models. Some differences are Stressed concerning the involvement of environmental variables, the intrinsic resistance;mechanisms, and the evolutionary schools of thought of botanists and zoologists. However, this comparison mostly emphasizes the similarities between the parasite distributions in hybrid populations, the genetic modes of the hybrid compatibility/resistance? and the evolutionary implications of the two systems. This preliminary analysis not only points out the need to diversify the parasite models studied for both plants and animals, but also emphasizes the relevance of animal models to progress in the understanding of the hybridization process and the host-parasite interactions.}, keywords = {additive, american, animals, chromosome, community, complex, distribution, ducks, environment, Evolution, genetic, geomydoecus, glycosides, host, house, hybrid, immune, Mallophaga, mice, mytilus galloprovincialis, parasitism, plants, sex chromosomes, structure}, author = {Moulia,C.} } @article {39741, title = {The historical and current state of medical entomology systematics in South Africa}, journal = {Transactions of the Royal Society of South Africa}, volume = {54}, year = {1999}, month = {1999}, pages = {65 - 73}, abstract = {Systematic studies on South African insects of medical importance have been mainly the preserve of the departments of Medical Entomology at the South African Institute for Medical Research (SAIMR) and the National Institute for Virology (NN) in Johannesburg. Very few such studies have emanated from universities or museums. From 1927-1960, these systematic studies resulted in the production of the definitive standard works on the Anophelinae, Simuliidae and Siphonaptera of Africa that are still in use today. After 1960, further books were produced on mites, myiasis and biting flies, lice and sandflies. Revisions of some of these works have been undertaken by SAIMR and NIV staff in recent times, in particular on the Siphonaptera and Culicinae of southern Africa and the Anophelinae of the Afrotropical Region. Because of the presence of species complexes, current systematic studies of the Anophelinae are obliged to use genetical data. Despite their importance for the health of the people of southern Africa, systematic studies on insects of medical importance have decreased over the years, mainly due to diminished resources and a lack of support for this field of endeavour.}, keywords = {anopheles, complex, Culicidae, Diptera}, author = {Coetzee,M.} } @article {39382, title = {Two new subgenera of chewing lice (Phthiraptera: Trichodectidae) from pocket gophers (Rodentia: Geomyidae), with a key to all included taxa}, journal = {Journal of Medical Entomology}, volume = {31}, year = {1994}, month = {1994}, pages = {450-466}, type = {Proof copy of article }, abstract = {

Proof copy: The new subgenera Thaelerius and Jamespattonius are described, respectively, for the eight species of Geomydoecus in the thomomyus complex of lice and the four species of Thomomydoecus in the wardi complex. Except for T. byersi Hellenthal \& Price from Thomomys bottae (Eydoux \& Gervais), these lice are restricted to the Thomomys talpoides (Richardson) complex of pocket gophers and are the only lice found on these hosts. A key is given for the identification of the currently recognized 122 taxa of pocket gopher lice.

}, keywords = {complex, geomydoecus, mtax, PHP, thomomydoecus, trichodectidae}, url = {http://www.phthiraptera.info/sites/phthiraptera.info/files/0825.pdf}, author = {Hellenthal,Ronald A. and Roger D. Price} } @article {38796, title = {Biosystematics of the chewing lice of pocket gophers}, journal = {Annual Review of Entomology}, volume = {36}, year = {1991}, note = {PHP;; Basically a review of the pocket gophers and their chewing lice up until 1991. A good summery of the studies conducted by the key workers in the field thus far.}, month = {1991}, pages = {185 - 203}, keywords = {complex, differentiation, genetic, geomydoecus, Geomyidae, Mallophaga, rodentia, subgenus, talpoides, thomomys, thomomys bottae, trichodectidae, U.S.A.}, url = {https://phthiraptera.myspecies.info/sites/phthiraptera.info/files/0098.pdf}, author = {Hellenthal,Ronald A. and Roger D. Price} } @article {38718, title = {Phylogeny of Geomydoecus and Thomomydoecus pocket gopher lice (Phthiraptera: Trichodectidae) inferred from cladistic analysis of adult and first instar morphology}, journal = {Systematic Entomology}, volume = {20}, year = {1995}, month = {1995}, pages = {129 - 143}, abstract = {

The phylogeny of all 122 species of chewing lice of the genera Geomydoecus and Thomomydoecus (Phthiraptera: Trichodectidae) hosted by pocket gophers (Rodentia: Geomyidae) is estimated by a cladistic analysis of fifty-eight morphological characters obtained from adults and first instars. The data set has considerable homoplasy, but still contains phylogenetic information. The phylogeny obtained is moderately resolved and, with some notable exceptions supports the species complexes proposed by Hellenthal and Price over the last two decades. The subgenera of G. (Thaelerius) and T. (Thomomydoecus)are both shown to be monophyletic , but the monophyly of subgenus T. (Jamespattonius) could not be confirmed, perhaps due to the lack of first instar data for one of its component species. The nominate subgenus of Geomydoecus may be monophyletic, but our cadogram was insufficiently resolved to corroberate this. Mapping the pocket gopher hosts on to the phylogeny reveals a consistant pattern of louse clades being restricted to particular genera or subgenera of gophers, but the history of the host-parasite association appears complex and will require considerable effort to resolve.

}, keywords = {assemblages, Chewing lice, complex, cospeciation, Evolution, Geomyidae, host parasite, lice, Mallophaga, mexico, rodentia, U.S.A.}, url = {http://www.phthiraptera.info/sites/phthiraptera.info/files/0003.pdf}, author = {Page,Roderic D. M. and Roger D. Price and Hellenthal,Ronald A.} }