Results 31 to 40 of about 1,870 (196)

Phylogenetic relationships of some species of the family Echinostomatidae Odner, 1910 (Trematoda), inferred from nuclear rDNA sequences and karyological analysis

open access: yesComparative Cytogenetics, 2015
The family Echinostomatidae Looss, 1899 exhibits a substantial taxonomic diversity, morphological criteria adopted by different authors have resulted in its subdivision into an impressive number of subfamilies. The status of the subfamily Echinochasminae
Gražina Stanevičiūtė   +2 more
doaj   +1 more source

Kinetics of echinostoma caproni (trematoda: echinostomatidae) antigens in feces and serum of experimentally infected hamsters and rats [PDF]

open access: yes, 2004
This study reports on the kinetics of antibody production to Echinostoma caproni and the dynamics of antigens in feces and sera in 2 experimental hosts (hamsters and rats) that display different degrees of susceptibility with this echinostome ...
Allan   +38 more
core   +2 more sources

مطالعه فونستیکی سرکاریا جدا شده از Melanoides tuberculata و نقش آنها در انتقال بیماریها [PDF]

open access: yesArchives of Razi Institute, 2005
To funistic survey of the cercariae of Melanoides tuberulata (fresh water snail) 1540 M.tuberculata were collected from various streams, swamps, ditches and canals in the central area of Khouzestan province in the south west of Iran. Infected snails, 46 (
ا. فرحناک   +2 more
doaj   +1 more source

A fine‐scale phylogenetic assessment of digenean trematodes in central Alberta reveals we have yet to uncover their total diversity

open access: yesEcology and Evolution, Volume 9, Issue 6, Page 3153-3238, March 2019., 2019
This manuscript represents a large, single, collective examination of larval trematodes from snail hosts, using molecular markers and phylogenetic methods. We contribute 1,091 mitochondrial sequences (cox1 and nad1) that represent 79 species from 23 genera and eight families.
Michelle A. Gordy, Patrick C. Hanington
wiley   +1 more source

Reinvestigation of the sperm ultrastructure of Hypoderaeum conoideum (Digenea: Echinostomatidae) [PDF]

open access: yesParasitology Research, 2018
Spermatological characteristics of the digenean Hypoderaeum conoideum (Echinostomatidae) collected from Anas platyrhynchos in the Lac d'Annecy (France) were reinvestigated using transmission electron microscopy. The previous study on this species only describes the presence of two axonemes of unequal lengths, a mitochondrion, a posterior nucleus, and ...
Miquel, Jordi   +4 more
openaire   +6 more sources

New cryptic species of the ‘revolutum’ group of Echinostoma (Digenea: Echinostomatidae) revealed by molecular and morphological data [PDF]

open access: yes, 2013
BACKGROUND: The digenean species of Echinostoma (Echinostomatidae) with 37 collar spines that comprise the so-called ‘revolutum’ species complex, qualify as cryptic due to the interspecific homogeneity of characters used to differentiate species.
Aneta Kostadinova   +6 more
core   +1 more source

Larval trematodes (Digenea) of the great pond snail, Lymnaea stagnalis (L.), (Gastropoda, Pulmonata) in Central Europe: a survey of species and key to their identification

open access: yesParasite, 2007
A survey of cercariae and metacercariae (Trematoda, Digenea) from the great pond snail (Lymnaea stagnalis) in Central Europe (Austria, Czech Republic, South-East Germany, Poland and Slovak Republic) is presented, based on a study of 3,628 snails examined
Faltýnková A.   +2 more
doaj   +1 more source

The effects of different cold‐temperature regimes on development, growth, and susceptibility to an abiotic and biotic stressor

open access: yesEcology and Evolution, Volume 9, Issue 6, Page 3355-3366, March 2019., 2019
We investigated how embryonic exposure to different cold‐temperature regimes affected compensatory larval development and growth, larval susceptibility to a common contaminant, and larval susceptibility to parasites. We found: no evidence of compensatory development or growth, tadpoles exposed to the cold‐press treatment were more susceptible to NaCl ...
Matthew Wersebe   +8 more
wiley   +1 more source

First Record of Echinoparyphium recurvatum (Trematoda, Echinostomatidae) in Pakistan with New Avian Definitive Host, Vanellus leucurus

open access: yes, 2019
Parasitological examinations of White-tailed Lapwing Vanellus leucurus (Charadriiformes: Charadriidae) collected from Dadu district (Sindh Province, Southern Pakistan) were carried out at the Department of Zoology, University of Sindh, Jamshoro.
Birmani, Nadir   +2 more
core   +1 more source

Experimental investigation of alternative transmission functions: Quantitative evidence for the importance of nonlinear transmission dynamics in host–parasite systems

open access: yesJournal of Animal Ecology, Volume 87, Issue 3, Page 703-715, May 2018., 2018
The authors tested 10 candidate functions representing the transmission of trematode parasites to amphibian hosts using laboratory experiments varying the duration of exposure, numbers of parasites, numbers of hosts and parasite density. Nonlinear functions outperformed classical frequency‐ and density‐dependent transmission functions and may provide ...
Sarah A. Orlofske   +6 more
wiley   +1 more source

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