By H. Martin Schaefer (auth.), Peter Kappeler (eds.)
The learn of animal behaviour is among the quickest turning out to be sub-disciplines in biology. The ensuing variety of conceptual methods and methodological concepts makes it more and more tricky for execs and scholars to maintain abreast of significant new advancements. This edited quantity offers updated studies that facilitate orientation in key components of animal behaviour, together with conversation, cognition, clash, cooperation, sexual choice and behavioural version. The contributions tackle evolutionary and proximate features of behaviour and in addition conceal either invertebrates and vertebrates. very important options are handled in separate glossaries and key examples highlighted in separate textual content bins. Richly illustrated with color figures, this quantity bargains a good established assessment of the entire major advancements in present animal behaviour examine. it really is excellent for educating upper-level classes, the place it will likely be crucial analyzing for complex scholars acquainted with simple suggestions and ideas.
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Extra info for Animal Behaviour: Evolution and Mechanisms
The comparison between situations in which a signaller either emits a call when a receiver is present or not allows to test whether individuals have voluntary control over call production, or whether call production is an involuntary response to a specific context (Evans 1997). This question has mainly been investigated in the context of the production of alarm calls. Calls that are typically directed towards a predator and/or conspecifics, so-called mobbing calls, are emitted independent of whether an audience of conspecifics is nearby or not, whereas 34 Claudia Fichtel and Marta Manser alarm calls emitted to warn group members are typically produced if a conspecific is nearby (Thomas langurs, Presbytis thomasis: Wich and Sterck 2003; yellow mongoose, Cynictis penicillata: Le Roux et al.
Chameleons show adaptive, predator-specific colour change if faced with predators that differ in visual abilities. They show stronger background matching if faced with an avian predator of acute colour vision relative to a snake with less developed colour vision (Stuart-Fox et al. 2008). 4 Selection by lower neuronal processes Not only the spectral sensitivities of animals, but also their neuronal and cognitive processes have selected for the design of colour signals. Although neuronal processes involved in the detection of signals and their recognition form a continuum, I tentatively discriminate between higher Visual communication: evolution, ecology, and functional mechanisms 13 and lower neuronal processes.
Bract colouration is a phenotypically plastic trait because individuals can sport both colour phenotypes if they receive direct sunlight on only one side. Red colouration often develops in plant tissue as a protection against excess sun light. Since individuals in gaps receive more light, they also produce sweeter fruits, forging a link between bract colouration and fruit quality. In this communication system, fruit quality is quantitatively indicated by the colour contrasts between bracts and the background; the higher the contrasts, the sweeter the fruits.
Animal Behaviour: Evolution and Mechanisms by H. Martin Schaefer (auth.), Peter Kappeler (eds.)