Results 1 to 10 of about 33,698 (242)

Monte Carlo simulation of age-dependent host–parasite relations [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2007
The death of a biological population is an extreme event which we investigate here for a host-parasitoid system. Our simulations using the Penna ageing model show how biological evolution can ``teach'' the parasitoids to avoid extinction by waiting for the right age of the host. We also show the dependence of extinction time on the population size.
Stauffer, Dietrich   +2 more
openaire   +4 more sources

Mistletoe in the relations system of "host-parasite"

open access: yesІнтродукція Рослин, 2017
Objective – to identify the spread of mistletoe (Viscum) in the dendrological park Olexandria and city plantations in Bila Tserkva, analysis of connections mistletoe-host tree, mechanisms of trees drying affected by mistletoe.
S.I. Galkin   +3 more
doaj   +2 more sources

Diversity–disease relationships in natural microscopic nematode communities [PDF]

open access: yesRoyal Society Open Science
Host diversity can affect parasite prevalence, a phenomenon widely studied in macroscopic organisms. However, data from microscopic communities are lacking, despite their essential role in ecosystem functioning and the unique experimental opportunities ...
Robbert van Himbeeck   +7 more
doaj   +2 more sources

Weighing the predictors: host traits and coinfecting species both explain variation in parasitism of Rock Ptarmigan

open access: yesEcosphere, 2021
Testing hypotheses in ecological and evolutionary parasitology can require testing whether host traits or coinfecting parasites explain variation in parasitism by focal species.
André Morrill   +5 more
doaj   +1 more source

HOST-PARASITE RELATIONS IN MOUSE TYPHOID [PDF]

open access: yesThe Journal of Experimental Medicine, 1966
The development of acquired resistance to Salmonella typhimurium has been studied in mice infected intravenously with small numbers of streptomycin-sensitive or streptomycin-resistant organisms. By the 14th day of a primary infection the mouse develops a mechanism capable of destroying completely a super infecting dose of organisms, but is unable to ...
G B, Mackaness   +2 more
openaire   +2 more sources

Adaptation of the Relationship in the "Parasite–Host" System with Parasitism Paramphistomum сervi in the Small Intestine of Sheeps

open access: yesРоссийский паразитологический журнал, 2020
The purpose of the research is studying microstructural changes in the process of adaptation of components during the formation of the “parasite–host” system by the example of Paramphistomum cervi (Zeder, 1790) parasitizing in the small intestine of ...
O. I. Bibik   +3 more
doaj   +1 more source

Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues

open access: yesParasites & Vectors, 2021
Background Digenean trematodes are parasitic platyhelminths that use several hosts in their life cycles and are thereby embedded in various ecosystems affected by local environmental conditions.
Yajiao Duan   +3 more
doaj   +1 more source

Host-Parasite Relations [PDF]

open access: yesNature, 1970
Immunity to Parasitic Animals Edited by G. J. Jackson, Robert Herman and Ira Singer. Vol. 1. Pp. ix + 292. (North-Holland: Amsterdam; Appleton-Century-Crofts (Educational): New York, 1969.) 128s.
openaire   +1 more source

Observations on North Dakota Sponges (Haplosclerina: Spongillidae) and Sisyrids (Neuroptera: Sisyridae) [PDF]

open access: yes, 2017
Factors influencing occurrence, distribution, and ecology of sponges and sisyrids are discussed, with emphasis on northeastern North Dakota. New state records for North Dakota sponges, Eunapius Jraguis Leidy and Ephydatia fluviatilis L. and the sisyrids,
Neel, Joe K   +2 more
core   +2 more sources

The Infectious Disease Ontology in the Age of COVID-19 [PDF]

open access: yes, 2021
The Infectious Disease Ontology (IDO) is a suite of interoperable ontology modules that aims to provide coverage of all aspects of the infectious disease domain, including biomedical research, clinical care, and public health.
Babcock, Shane   +3 more
core   +1 more source

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