Predation resistance does not trade off with competitive ability in early-colonizing mosquitoes
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چکیده
منابع مشابه
Trade-Off between Competitive Ability and Antipredator Adaptation in a Freshwater Amphipod Species Complex
Body size influences many physiological and ecological processes, and thus adaptive change in body size may hold diverse consequences for individuals. For amphipods in the Hyalella azteca species complex, divergence in body size appears to be driven by adaptation to disparate regimes of size-biased mortality experienced in different habitat types. Here I ask how size and size-related traits inf...
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BACKGROUND Different evolutionary hypotheses predict a correlation between the fitness of a genotype in the absence of infection and the likelihood to become infected. The cost of resistance hypothesis predicts that resistant genotypes pay a cost of being resistant and are less fit in the absence of parasites. The inbreeding-infection hypothesis predicts that the susceptible individuals are les...
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Carotenoid reserves in copepods seem costly in terms of predation risk because they make individuals conspicuous. However, carotenoids also seem to play an important role in immune defence as free radical scavengers. To test whether predation risk influences carotenoid levels and whether changes in carotenoid levels are related to changes in immune defence, I examined individual changes in larg...
متن کاملNo trade-off between learning ability and parasitoid resistance in Drosophila melanogaster.
Learning ability and immunity to parasites are linked at the physiological level in several insect species. The aim of this work was to investigate the relationship between learning and immunity at an evolutionary level. We tested whether selection for improved learning ability in Drosophila melanogaster led to changes in parasitoid resistance as a correlated response. Similarly, we assayed whe...
متن کاملThe growth-predation risk trade-off under a growing gape-limited predation threat.
Growth is a critical ecological trait because it can determine population demography, evolution, and community interactions. Predation risk frequently induces decreased foraging and slow growth in prey. However, such strategies may not always be favored when prey can outgrow a predator's hunting ability. At the same time, a growing gape-limited predator broadens its hunting ability through time...
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ژورنال
عنوان ژورنال: Oecologia
سال: 2013
ISSN: 0029-8549,1432-1939
DOI: 10.1007/s00442-013-2674-z