Results 21 to 30 of about 869,092 (290)
Endoparasitic fauna of Serrasalmus spp. (Characidae: Serrasalminae) in a neotropical floodplain
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]
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]
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
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]
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
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
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]
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
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]
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

