Results 11 to 20 of about 52,240 (297)

Louse (Insecta : Phthiraptera) mitochondrial 12S rRNA secondary structure is highly variable [PDF]

, 2002
Lice are ectoparasitic insects hosted by birds and mammals. Mitochondrial 12S rRNA sequences obtained from lice show considerable length variation and are very difficult to align.
Billoud B., Collins L.J., Corpet F., Critchlow D.E., Day W.H.E., Fontana W., Gutell R.R., Hafner M.S., Hafner M.S., Hickson R.E., Hickson R.E., Hofacker I.L., Houde P., Johnson K.P., Johnson K.P., K. P. Johnson, Konings D.A.M., Lenhof H.-P., Lockhart P.J., Mindell D.P., Moran N.A., Page R.D.M., Page R.D.M., Page R.D.M., R. Cruickshank, R. D. M. Page, Shao R., Simon C., Springer M.S., Stoye J., Swofford D.L., Wheeler W.C.   +31 more
core   +2 more sources

Endosymbiotic bacteria of the boar louse Haematopinus apri (Insecta: Phthiraptera: Anoplura)

Frontiers in Microbiology, 2022
Insects exclusively feeding on vertebrate blood are usually dependent on symbiotic bacteria for provisioning of B vitamins. Among them, sucking lice are prominent in that their symbiotic bacteria as well as their symbiotic organs exhibit striking ...
Yudai Nishide, Kohei Oguchi, Kohei Oguchi, Maria Murakami, Minoru Moriyama, Ryuichi Koga, Takema Fukatsu, Takema Fukatsu, Takema Fukatsu   +8 more
doaj   +1 more source

What makes a host profitable? Parasites balance host nutritive resources against immunity [PDF]

, 2008
Numerous host qualities can modulate parasite fitness, and among these, host nutritive resources and immunity are of prime importance. Indeed, parasite fitness increases with the amount of nutritive resources extracted from the host body and decreases ...
Bize, P., Jeanneret, C., Klopfenstein, A., Roulin, A.   +3 more
core   +1 more source

Data incongruence and the problem of avian louse phylogeny [PDF]

, 2004
Recent studies based on different types of data (i.e. morphological and molecular) have supported conflicting phylogenies for the genera of avian feather lice (Ischnocera: Phthiraptera).
Archie J. W., Bandelt H.-J., Blagoveshtchenskii D. I., Bremer K., Choe J. C., Clay T., Clayton D. H., Clayton D. H., Corpet F., Cunningham C. W., Danforth B. N., Darlu P., Eichler W. D., Emerson K. C., Estabrook G. F., Faith D. P., Felsenstein J., Hafner M. S., Hafner M. S., Hillis D. M., Hillis D. M., Hopkins G. H. E., Huelsenbeck J. P., Johnson K. P., Johnson K. P., Jow H., Kallersjo M., Kellogg V. L., Kluge A. G., Konigsmann E., Lockhart P. J., Lockhart P. J., Lopez P., Loye J. E., Lyal C. H. C., Maddison W. P., Meacham C. A., Mey E., Mey E., Page R. D. M., Page R. D. M., Page R. D. M., Palma R. L., Price R. D., Rambaut A., Reed D. L., Rozsa L., Rzhetsky A., Simon C., Swofford D. L., Wheeler W. C., Wilkinson M., Zharkikh A.   +52 more
core   +1 more source

Parasite management in aquaculture exerts selection on salmon louse behaviour

Evolutionary Applications, 2021
The evolution of pest resistance to management strategies is a major challenge for farmed systems. Mitigating the effects of pest adaptation requires identifying the selective pressures imposed by these strategies.
Andrew Coates, Ingrid A. Johnsen, Tim Dempster, Ben L. Phillips   +3 more
doaj   +1 more source

Allee Effects May Slow the Spread of Parasites in a Coastal Marine Ecosystem [PDF]

, 2011
Allee effects are thought to mediate the dynamics of population colonization, particularly for invasive species. However, Allee effects acting on parasites have rarely been considered in the analogous process of infectious disease establishment and ...
Connors, B. M., Krkošek, M., Lewis, M. A., Poulin, R.   +3 more
core   +1 more source

Temporal and spatial variations in lice numbers on salmon farms in the Hardanger fjord 2004-06 [PDF]

, 2009
The long and narrow Hardanger fjord in western Norway has a high density of salmon farms and has had severe salmon lice, Lepeophtheirus salmonis, problems.
Bjørn, Bricknell, Bush, Finstad, Hahnenkamp, Heuch, Heuch, Heuch, Heuch, Jaworski, Johnson, Johnson, Johnson, Kålås, Lees, McLean, Olsen, Olsen, Otterå, Revie, Revie, Stone, Tucker, Tully   +23 more
core   +1 more source

Changes in epidemiological patterns of sea lice infestation on farmed Atlantic salmon, Salmo salar L., in Scotland between 1996 and 2006 [PDF]

, 2008
Analyses of a unique database containing sea lice records over an 11 year period provide evidence of changing infestation patterns in Scotland. The data, collected from more than 50 commercial Atlantic salmon farms, indicate that both species of sea lice
Bron J.E., Grant A.N., ICES, Johnson S.C., Kabata Z., Revie C.W., Roth M., Scottish Executive, Shaw D.J., SSPO, Treasurer J., Treasurer J.W., Wadsworth S.L, Wootten R.   +13 more
core   +1 more source

On the origin of Halipeurus heraldicus on Round Island petrels: cophylogenetic relationships between petrels and their chewing lice [PDF]

, 2010
Lice phylogenetic relationships have often been used to elucidate host relationships and vice versa. In this study, we investigate the louse genus Halipeurus which parasitizes bird hosts in the families Procellariidae, Hydrobatidae and Pelecanoididae ...
Brown, R., Bugoni, L., Hammer, S., Hughes, J., Palma, R.L.   +4 more
core   +1 more source

Differences in spatial memory recognition due to cognitive style [PDF]

, 2017
Field independence refers to the ability to perceive details from the surrounding context as a whole and to represent the environment by relying on an internal reference frame.
Boccia, Maddalena, Cimadevilla, José M., Piccardi, Laura, Tascã³n, Laura   +3 more
core   +3 more sources