Alarm calls of a cooperative bird are referential and elicit context-specific antipredator behavior

  title={Alarm calls of a cooperative bird are referential and elicit context-specific antipredator behavior},
  author={Lucy F. Farrow and Samantha J. Doohan and Paul G. Mcdonald},
  journal={Behavioral Ecology},
Lay Summary In a world where predators use an array of hunting strategies, prey must adapt their escape responses accordingly or be eaten. The ability of prey to convey information on predator type or its location to other members of social groups has received minimum attention in research regarding avian acoustic communication. Using an array of practical approaches, we present novel evidence that a social bird species possesses 2 distinct alarm calls for aerial versus terrestrial predators… 
Cooperative bird discriminates between individuals based purely on their aerial alarm calls
Evidence of individual discrimination in the aerial alarm calls of noisy miners is found, which is surprisingly of similar efficiency to their ability to discriminate between less urgent terrestrial alarm signals.
Nestlings reduce their predation risk by attending to predator-information encoded within conspecific alarm calls
It is shown that noisy miner (Manorina melanocephala) nestlings can differentiate between terrestrial and aerial alarm calls of their own species, and that nestlings are able to take advantage of the complex vocal repertoire that adults produce, although discernment is an issue when filtering out irrelevant stimuli.
Effect of nestlings’ age on parental responses to a predatory snake in Parus minor
The measured parental responses to live snake in 8 nests suggests that fledging in response to ‘jar’ call by old nestlings evolved later than the evolutionary emergence of referential snake alarm calls, and that the ancestral function of ‘Jar’call was probably not related to triggering of fledge inold nestlings.
Interspecific Communication: Gaining Information from Heterospecific Alarm Calls
Alarm signals provide an insight into the evolution of signal design, and the complex flow of information within and among species in natural communities.
Do differences in the availability of anthropogenic food resources influence the observed levels of agonistic behaviour in Noisy Miners (Manorina melanocephala)?
ABSTRACT The Noisy Miner (Manorina melanocephala) is a cooperative honeyeater living in social groups throughout south-east Australia that displays high levels of interspecific aggression and reduces
Parental defence in shorebirds is mediated by embryonic calling, ambient temperature and predator latency
The presence of embryonic vocalisations, among other factors, may mediate individual components of shorebird defensive strategies in a species-specific fashion.
magpies respond to the number of heterospeci fi cs giving alarm calls but not the number of species calling 0003-3472/Crown Copyright © 2019 Published by Els Social information varies in its reliability and relevance, requiring individuals to use rules to avoid
Do the Calls of a Bird, the Noisy Miner (Manorina melanocephala), Need Adjustment for Efficient Communication in Urban Anthropogenic Noise?
The calls of Noisy miners may be naturally well suited to being heard in noisy urban environments by having (a) dominant frequencies higher than low-level, anthropogenic noise and (b) several important call-types with frequencies above the main frequency range associated with urban noise.
Bioacoustic monitoring of animal vocal behavior for conservation
The popularity of bioacoustics for threatened species monitoring has surged. Large volumes of acoustic data can be collected autonomously and remotely with minimal human effort. The approach is


Allometry of Alarm Calls: Black-Capped Chickadees Encode Information About Predator Size
An unsuspected level of complexity and sophistication in avian alarm calls is demonstrated by showing that acoustic features of the mobbing calls of black-capped chickadees vary with the size of the predator.
Production and perception of situationally variable alarm calls in wild tufted capuchin monkeys (Cebus apella nigritus)
Investigating the alarm call system of tufted capuchin monkeys by examining responses to predator and snake decoys encountered at various distances adds to the evidence that functionally referential aerial predator alarm calls are ubiquitous in primates, but that noncatarrhine primates use generalized disturbance calls in response to terrestrial threats.
Representational signalling in birds
Results show that chicken food calls are representational signals: they stimulate retrieval of information about a class of external events, the first such demonstration for any non-primate species.
Cooperative bird differentiates between the calls of different individuals, even when vocalizations were from completely unfamiliar individuals
It is demonstrated that miners could correctly use the spectral features of signals to differentiate between the vocalizations of different individuals, regardless of their familiarity, in a communication system capable of accommodating even the most complex cooperative hypotheses based upon acoustic information.
Essay on Contemporary Issues in Ethology: Variation among Mammalian Alarm Call Systems and the Problem of Meaning in Animal Signals
Comparisons of the physical, behavioral and habitat characteristics of primates and ground-dwelling sciurid rodents suggest that incompatibility of the escape responses required to avoid different classes of predators may have been an important factor in the evolution of functionally referential alarm calls.
The squirrel that cried wolf: reliability detection by juvenile Richardson's ground squirrels (Spermophilus richardsonii)
Juvenile Richardson's ground squirrels are capable of forming a concept of reliability by associating an individual's identity with that individual's past performance, like primates.
Perception of terrestrial and aerial alarm calls by honeyeaters and falcons
There are no reliable differences in the auditory characteristics of avian predators and prey, as have been described in species from the Northern Hemisphere.
Food calling in ravens: are yells referential signals?
Ravens, Corvus corax, yell when they approach rich but defended food sources. As in other species, such food-associated calls attract conspecifics. These calls may provide information about the
Mother knows best: functionally referential alarm calling in white-tailed ptarmigan
This study provides the first empirical evidence of functionally referential alarm calling, including the responses of the receivers, in an avian species in the wild.