Alarm substance and intra-specific predation in cyprinids
نویسندگان
چکیده
منابع مشابه
Predation increases acoustic complexity in primate alarm calls.
According to most accounts, alarm calling in non-human primates is a biologically hardwired behaviour with signallers having little control over the acoustic structure of their calls. In this study, we compared the alarm calling behaviour of two adjacent populations of Diana monkeys at Taï forest (Ivory Coast) and Tiwai Island (Sierra Leone), which differ significantly in predation pressure. At...
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In various species of fishes, the importance of visual cues in the determination of environmental threat and subsequent predator avoidance is clear. Chemical cues also play an essential role facilitating predator avoidance. Among fish in the superorder Ostariophysi, club cells in the epidermis produce an alarm substance. Damage to the skin during a predation event releases an alarm substance (A...
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Flexible vocal production has been demonstrated in several vertebrate species with much work focusing on the role of the social “audience” in explaining variation in call production. It is, however, likely that the decision to call is an emergent property of both external and internal factors and the extent to which these factors are integrated has been little investigated. We addressed this qu...
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Many fishes possess specialized epidermal cells that are ruptured by the teeth of predators, thus reliably indicating the presence of an actively foraging predator. Understanding the evolution of these cells has intrigued evolutionary ecologists because the release of these alarm chemicals is not voluntary. Here, we show that predation pressure does not influence alarm cell production in fishes...
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Intra-guild predation (IGP) is an important phenomenon structuring ecological communities and affects the success of biological control. Here we show that parasitism by the koinobiont wasp Cotesia vestalis is associated with behavioural changes in its larval host (diamondback moth, Plutella xylostella) that reduce risk of IGP. Compared with unparasitised caterpillars, parasitised P. xylostella ...
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ژورنال
عنوان ژورنال: Die Naturwissenschaften
سال: 1962
ISSN: 0028-1042,1432-1904
DOI: 10.1007/bf01185133