Benefit by contrast: an experiment with live aposematic prey
نویسندگان
چکیده
منابع مشابه
Increased predation of nutrient-enriched aposematic prey
Avian predators readily learn to associate the warning coloration of aposematic prey with the toxic effects of ingesting them, but they do not necessarily exclude aposematic prey from their diets. By eating aposematic prey 'educated' predators are thought to be trading-off the benefits of gaining nutrients with the costs of eating toxins. However, while we know that the toxin content of aposema...
متن کاملDisentangling taste and toxicity in aposematic prey.
Many predators quickly learn to avoid attacking aposematic prey. If the prey vary in toxicity, the predators may alternatively learn to capture and taste-sample prey carefully before ingesting or rejecting them (go-slow behaviour). An increase in prey toxicity is generally thought to decrease predation on prey populations. However, while prey with a higher toxin load are more harmful to ingest,...
متن کاملPost-attack Aposematic Display in Prey Facilitates Predator Avoidance Learning
Warning signals protect unpalatable prey from predation because predators who learn the association between the warning signal and prey unprofitability decrease attacks on the prey. Most of the research have focused on visual aposematic signals that are constantly presented and visible to the predators. But a variety of chemically defended insects are rather cryptic when resting, and only in re...
متن کاملStrong antiapostatic selection against novel rare aposematic prey.
The evolution of aposematism, a phenomenon where prey species conspicuously advertise their unprofitability to predators, is puzzling. How did conspicuousness evolve, if it simultaneously increased the likelihood of an inexperienced predator to detect the prey and presumably kill it? Antiapostatic selection, where rare prey is predated relatively more often, is considered as another major diffi...
متن کاملBody size matters for aposematic prey during predator aversion learning
Aposematic prey advertise their toxicity to predators using conspicuous warning signals, which predators learn to use to reduce their intake of toxic prey. Like other types of prey, aposematic prey often differ in body size, both within and between species. Increasing body size can increase signal size, which make larger aposematic prey more detectable but also gives them a more effective and s...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 2001
ISSN: 1465-7279
DOI: 10.1093/beheco/12.6.768