Results 1 to 10 of about 33,698 (242)
Monte Carlo simulation of age-dependent host–parasite relations [PDF]
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"
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]
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
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]
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
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
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
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]
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]
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

