Results 21 to 30 of about 869,092 (290)

Endoparasitic fauna of Serrasalmus spp. (Characidae: Serrasalminae) in a neotropical floodplain

open access: yesActa Scientiarum: Biological Sciences, 2016
Floodplains systems present complex biodiversity and upper Paraná river floodplain retains a wide variety of terrestrial and aquatic species. Serrasalmus marginatus (nonindigenous species) and Serrasalmus maculatus (native species) are part of this ...
Guilherme Pomaro Casali   +1 more
doaj   +1 more source

Ecology: Plant Parasites Victimized by a Parasitic Plant [PDF]

open access: yesCurrent Biology, 2018
A recent study reveals a novel type of trophic interaction: galls induced on a native Florida oak by cynipid wasps are attacked by love vine, a subtropical parasitic plant. Attack is fatal to the wasp, and thus there is the opportunity for the vine to exert selection on the wasp to alter gall structure.
openaire   +2 more sources

Trophic structure in a seabird host-parasite food web: insights from stable isotope analyses [PDF]

open access: yes, 2010
Ecological studies on food webs rarely include parasites, partly due to the complexity and dimensionality of host-parasite interaction networks. Multiple co-occurring parasites can show different feeding strategies and thus lead to complex and cryptic ...
Gómez-Díaz Elena   +3 more
core   +1 more source

Multidisciplinary studies, systems approaches and parasite eco-epidemiology: something old, something new

open access: yesParasite, 2008
Parasite requires an understanding of complex transmission systems where individual, population and environmental factors and their interactions can hardly been considered separately.
Giraudoux P.   +3 more
doaj   +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

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

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

Host sexual dimorphism and parasite adaptation [PDF]

open access: yes, 2012
In species with separate sexes, parasite prevalence and disease expression is often different between males and females. This effect has mainly been attributed to sex differences in host traits, such as immune response.
Duneau, D.   +5 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   +3 more sources

Parasite variation and the evolution of virulence in a Daphnia-microparasite system [PDF]

open access: yes, 2008
Understanding genetic relationships amongst the life-history traits of parasites is crucial for testing hypotheses on the evolution of virulence. This study therefore examined variation between parasite isolates (the bacterium Pasteuria ramosa) from the ...
Little, T. J., Chadwick, W., Watt, K.
core   +1 more source

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