Results 51 to 60 of about 504 (149)

Galba truncatula and Fasciola hepatica : Genetic costructures and interactions with intermediate host dispersal

open access: yesInfection, Genetics and Evolution, 2017
Antagonistic interactions between hosts and parasites are key structuring forces in natural populations. Demographic factors like extinction, migration and the effective population size shape host-parasite metapopulational dynamics. Therefore, to understand the evolution of host-parasite systems it is necessary to study the distribution of the genetic ...
Ana C. Correa   +4 more
openaire   +4 more sources

Colonisation History of Freshwater Snails Across the Atlantic and Mediterranean Islands: Insights From Mercuria (Littorinimorpha, Hydrobiidae)

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Islands harbour unique biodiversity, and depending on their geological origin, they have fundamentally different colonisation histories: continental islands may contain relict faunas shaped by vicariance and sporadic gene flow, whereas oceanic islands must have been colonised across open seas, often through long‐distance dispersal events ...
Jonathan P. Miller   +3 more
wiley   +1 more source

Epidemiological studies on Fasciola hepatica in Gafsa oases (South West of Tunisia)

open access: yesParasite, 2007
Epidemiological investigations on Fasciola hepatica fasciolasis were carried out from July 2004 to June 2005 in the Gafsa oases (Tunisia) after the detection of a human case. Three habitats were studied: one in El Gsar and two in Ain Soltan.
Hammami H., Hamed N., Ayadi A.
doaj   +1 more source

Using Natural History Collections to Determine the Relative Changes in Diversity and Distribution of Freshwater Molluscs in KwaZulu‐Natal, South Africa

open access: yesAfrican Journal of Ecology, Volume 64, Issue 2, March 2026.
ABSTRACT Research using natural history collections to track anthropogenic activities has recently been on the rise. Natural history collections have been utilised beyond their traditional taxonomic and systematic roles, generating data that shape present and future research.
Matabaro Ziganira   +3 more
wiley   +1 more source

Evidences That Host Genetic Background More Than the Environment Shapes the Microbiota of the Snail Bulinus truncatus, an Intermediate Host of Schistosoma Species

open access: yesMolecular Ecology, Volume 35, Issue 6, March 2026.
ABSTRACT Microbiota have emerged as fundamental regulators of host physiology, shaping both ecological interactions and evolutionary trajectories. Yet, the determinants of microbiota diversity and structure in wild populations—particularly the respective roles of host genetics and environmental context—are still poorly understood.
Mathilde J. Jaquet   +9 more
wiley   +1 more source

Paramphistomum daubneyi: characteristics of infection in three lymnaeid species

open access: yesParasite, 2012
Experimental infections of two South American lymnaeids (Lymnaea neotropica and L. viatrix var. ventricosa) with Paramphistomum daubneyi were carried out to determine if these snail species could sustain larval development of this digenean and, if so, to
Sanabria R.   +6 more
doaj   +1 more source

Vodní malakofauna přítoků Javorky u Lázní Bělohrad [PDF]

open access: yesMalacologica Bohemoslovaca, 2012
This paper presents results of a malacological survey of four small tributaries of the brook Javorka near Lázně Bělohrad in East Bohemia (Czech Republic).
Luboš Beran
doaj   +1 more source

Hydrographic network structure and population genetic differentiation in a vector of fasciolosis, Galba truncatula

open access: yesInfection, Genetics and Evolution, 2010
We report a preliminary analysis on the relationships between drainage basin structure and genetic structure of populations of the European vector of fasciolosis, Galba truncatula. In the study area, 251 snails belonging to 12 populations were collected along different ditches of a same river network.
Hurtrez-Bousses, S.   +7 more
openaire   +4 more sources

Geochronology of the Whittlesey sedimentary succession, eastern England: The ‘Pompeii’ of the British late Middle Pleistocene to Holocene record

open access: yesJournal of Quaternary Science, Volume 41, Issue 2, Page 260-287, February 2026.
ABSTRACT The sedimentary succession at Whittlesey preserves a unique British late Middle Pleistocene to Holocene record back to a time equivalent to at least marine oxygen isotope stage 8 (ca. 250 ka). This study builds on previously published sedimentology, geochronology and palaeoecology results to establish 20 sedimentary facies associations, with ...
H. E. Langford   +3 more
wiley   +1 more source

New age‐estimate data and implications for marine isotope stage 7 and 5e sea levels in Fenland, eastern England

open access: yesJournal of Quaternary Science, Volume 41, Issue 1, Page 36-60, January 2026.
ABSTRACT Only one last interglacial relative sea‐level indicator point (SLIP) has been recognised for Fenland, eastern England, and the nearest penultimate interglacial SLIP is located on the north Norfolk coast. Such limited information restricts the regional input to, and hence the relevance of, global reconstructions of late Middle and Late ...
H. E. Langford   +7 more
wiley   +1 more source

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