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Parasitism in Medical News

Parasites a key to the decline of red colobus monkeys in forest fragments

...m into contact with more parasites. Their compromised nutritional status also weakens them, giving parasites the edge, Gillespie said. We asked how parasitism plays into this dynamic of some species doing well and others not doing well after forest fragmentation, Gillespie said. This is giving us a new windo...

Reasons why men die earlier

...se species where males die younger than females, the males suffer a disproportionately high rate of parasitism. The authors also show that male-biased parasitism is the general rule among mammals, and that it is most extreme in those species where male-male competition for mates is most severe. Taken together, ...
Parasitism in Biological News

Worm genome offers clues to evolution of parasitism

The genome of a humble worm that dines on the microbial organisms covering the carcasses of dead beetles may provide clues to the evolution of parasitic worms, including those that infect humans, say scientists at Washington University School of Medicine in St. Louis and the Max-Planck Institute f...

Insight into the evolution of parasitism

This release is also available in German . Scientists at the Max Planck Institute for Developmental Biology, together with American colleagues, have decoded the genome of the Pristionchus pacificus nematode, thereby gaining insight into the evolution of parasitism. In their work, which ha...

New CU-Boulder study shows diversity decreases chances of parasitic disease

...cephalitis and bubonic plague, he said. "In the absence of parasites, the toads and frogs are pure competitors," Johnson said. "But when trematode parasitism is present in the ecosystem, the adage 'the enemy of my enemy is my friend' comes into play for the toads, which are essentially shielded from infecti...

NC State researchers get to root of parasite genome

...athology at NC State, co-director of the Center for the Biology of Nematode parasitism and the corresponding author on a scientific paper describing the research....athology at NC State, co-director of the Center for the Biology of Nematode parasitism and a co-author of the paper. The study is published online this week in ...

ISU researchers help map first plant-parasitic nematode genome sequence

...stdoctoral research associate, Noureddine Hamamouch, used the current known parasitism genes to identify the full suite or predicted parasitism genes in the root-knot nematode genome. With this sequencing done, Baum ...

A bee's future as queen or worker may rest with parasitic fly

...The flies may encourage worker behavior in some bees. "We often think of parasitism in terms of it affecting an animal's fitness, its survival or its ability t...o look for complicated ecological relationships between different species. parasitism may encourage sociality in some situations. Here it is promoting social be...

Mice mothers devote energies to offspring when life is threatened

...ch findings have been published in New Scientist magazine. She writes, "Organisms are predicted to decrease investment in current reproduction when parasitism has the greatest impact on current reproductive ability." In other words, "infection in animals typically leads to responses that invest in the su...

UCR-led research team uses tiny wasp to wipe out major agricultural pest in Tahiti

...luations, Hoddle and his colleagues released nearly 14,000 parasitic wasps at 27 sites in Tahiti between May 2005 and October 2005, resulting in rapid parasitism of glassy-winged sharpshooter eggs. By December 2005, the wasp had colonized the entire island of Tahiti, and glassy-winged sharpshooters decreased i...

Virginia Tech plant scientist leads study on genomics of parasitic plants

...c point of view, we also want to gain more information about these plant species because of their unique biology. We know little about the genomics of parasitism in plants, and this study will increase our knowledge in this area. Westwood and his colleagues are studying three genera within the Orobanchaceae ...

Parasites' impact goes beyond host to affect ecosystem

...h College undergraduate, and UNH associate professor of zoology James Byers, working at the Shoals Marine Lab off the coast of New Hampshire, looks at parasitism by the trematode Cryptocotyle lingua in Littorina littorea, a snail known as the common periwinkle and the dominant herbivore in the intertidal zone. ...
Parasitism in Biological Definition

Symbiosis

... The various forms of symbiosis include: - parasitism , in which the association is disadvantageous or d...rceived as a continuum of interaction ranging from parasitism to mutualism. In fact, the direction of a symbioti...ion occurs. See also Commensalism parasitism Mutualism List of symbiotic relationship...
Parasitism in Biological Dictionary

Parasitism

Parasitism is a type of symbiotic relationship between two different organisms where one organism, the parasite, takes favor from the host, sometimes for a prolonged time. In general, parasites are much smaller than their... parasitism n. The characteristic behavior or mode of existence of...

Parasites

... parasitism is a type of symbiotic relationship between two different organisms where one organism, the parasite, takes favor from the host, sometimes for a prolo...

Parasite

... parasitism is a type of symbiotic relationship between two different organisms where o... in a different organism while contributing nothing to the survival of parasitism n. The characteristic behavior or mode of existence of a parasite or para...

Commensalism

...e two other types of association: mutualism and parasitism . Commensalism is a relationship between two...cases commensalism cannot be distinguished from parasitism (see parasite) ... More on commensalism from Fa...- one species benefits, the other is unaffected. parasitism ... Commensalism . Mutualism. Neutralism. Commen...
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