Results 21 to 30 of about 906,584 (291)

Ligula intestinalis (Cestoda: Pseudophyllidea): an ideal fish-metazoan parasite model? [PDF]

open access: yes, 2010
Since its use as a model to study metazoan parasite culture and in vitro development, the plerocercoid of the tapeworm, Ligula intestinalis, has served as a useful scientific tool to study a range of biological factors, particularly within its fish ...

core   +1 more source

Differential expression of immune defences is associated with specific host-parasite interactions in insects [PDF]

open access: yes, 2009
Recent ecological studies in invertebrates show that the outcome of an infection is dependent on the specific pairing of host and parasite. Such specificity contrasts the long-held view that invertebrate innate immunity depends on a broadspectrum ...
Carolyn Riddell   +16 more
core   +2 more sources

The ecological significance of manipulative parasites

open access: yesTrends in Ecology & Evolution, 2009
The diversity of ways in which host manipulation by parasites interferes with ecological and evolutionary processes governing biotic interactions has been recently documented, and indicates that manipulative parasites are full participants in the functioning of ecosystems.
Lefèvre, Thierry   +5 more
openaire   +4 more sources

Benefits of host genetic diversity for resistance to infection depend on parasite diversity [PDF]

open access: yes, 2010
Host populations with high genetic diversity are predicted to have lower levels of infection prevalence. This theory assumes that host genetic diversity results in variation in susceptibility and that parasites exhibit variation in infectivity. Empirical
Ganz, H.   +4 more
core   +1 more source

Geographic distribution and composition of the parasite assemblage of the insectivorous bat, Miniopterus natalensis (Chiroptera: Miniopteridae), in South Africa [PDF]

open access: yes, 2012
Includes bibliographical references.All free-living animal species have their own unique parasite assemblages. These parasites can have a significant impact on the fitness and ecology of their hosts, and through them the ecological systems in which they ...
Wood, Simon
core   +1 more source

Climatic change in northeastern Brazil: paleoparasitological data

open access: yesMemorias do Instituto Oswaldo Cruz, 1993
Trichuris eggs were observed in Kerodon rupestris coprolites dated 9,000 years before present, collected in archeological sites of São Raimundo Nonato, northeastern Brazil.
Adauto Araujo   +2 more
doaj   +1 more source

Resolving the infection process reveals striking differences in the contribution of environment, genetics and phylogeny to host-parasite interactions [PDF]

open access: yes, 2011
Background Infection processes consist of a sequence of steps, each critical for the interaction between host and parasite. Studies of host-parasite interactions rarely take into account the fact that different steps might be influenced by different ...
Ebert, Dieter   +23 more
core   +1 more source

Untapped potential: The utility of drylands for testing eco-evolutionary relationships between hosts and parasites

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2020
Drylands comprise over 41% of all terrestrial surface area and are home to approximately 35.5% of the world's population; however, both free-living and parasitic fauna of these regions remain relatively understudied.
Elizabeth M. Warburton
doaj   +1 more source

Successfully resisting a pathogen is rarely costly in Daphnia magna [PDF]

open access: yes, 2010
Background A central hypothesis in the evolutionary ecology of parasitism is that trade-offs exist between resistance to parasites and other fitness components such as fecundity, growth, survival, and predator avoidance, or resistance to other parasites.
Pedro F Vale   +9 more
core   +1 more source

Home - About - Disclaimer - Privacy