• Publications
  • Influence
Social complexity as a proximate and ultimate factor in communicative complexity
The ‘social complexity hypothesis’ for communication posits that groups with complex social systems require more complex communicative systems to regulate interactions and relations among groupExpand
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Lizards speed up visual displays in noisy motion habitats
Extensive research over the last few decades has revealed that many acoustically communicating animals compensate for the masking effect of background noise by changing the structure of theirExpand
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Digital video playback and visual communication in lizards
Experimental analyses of dynamic visual signals have to overcome the technical obstacle of reproducing complex motor patterns such as those found in courtship and threat displays. Video playbackExpand
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Tracing the origins of signal diversity in anole lizards: phylogenetic approaches to inferring the evolution of complex behaviour
Within species, natural and sexual selection work together to shape the design of animal communicative systems, and sometimes act differentially on alternate components to produce a single elaborateExpand
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Interactive video playback and opponent assessment in lizards
Video playback has been used to explore many issues in animal communication, but the scope of this work has been constrained by the lack of stimulus-subject interaction. In many natural contexts,Expand
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Repeated evolution and the impact of evolutionary history on adaptation
BackgroundWhether natural selection can erase the imprint of past evolutionary history from phenotypes has been a topic of much debate. A key source of evidence that present-day selection canExpand
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Sexual selection, natural selection and the evolution of dimorphic coloration and ornamentation in agamid lizards
Both sexual selection and natural selection can influence the form of dimorphism in secondary sexual traits. Here, we used a comparative approach to examine the relative roles of sexual selection andExpand
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Alert signals enhance animal communication in “noisy” environments
  • T. J. Ord, J. Stamps
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences
  • 2 December 2008
Environmental noise that reduces the probability that animals will detect communicative signals poses a special challenge for long-range communication. The application of signal-detection theory toExpand
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We tested hypotheses on how animals should respond to heterospecifics encountered in the environment. Hypotheses were formulated from models parameterized to emphasize four factors that are expectedExpand
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Species Identity Cues in Animal Communication
Researchers have suggested that animals should respond more strongly to conspecific than to heterospecific communication signals used in territorial or courtship contexts. We tested this predictionExpand
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