5 Works

Data from: Factors leading to the evolution and maintenance of a male ornament in territorial species

Grace K. Charles & Terry J. Ord
Male ornamentation is assumed to have evolved primarily from selection by female mate choice. Yet this is only one possible reason for ornament evolution. Ornaments might also be useful in aggressive competition by improving opponent assessment between males, or they might function to enhance signal detection by making males more conspicuous in the environment. We tested both these ideas in territorial Anolis lizards in which female choice is either absent or secondary to males competing...

Data from: Receiver perception predicts species divergence in long-range communication

Terry J. Ord
The design of animal signals is believed to reflect the combined effect of the sensory system of receivers, the type of environment in which communication is being conducted, and the distance signals must travel in that environment. While empirical studies have examined how each of these factors might separately explain the structure of signals used by animals within species, comparative evidence supporting the predicted interaction of the sensory system, environment and transmission range in the...

Data from: Is sociality required for the evolution of communicative complexity? Evidence weighed against alternative hypotheses in diverse taxonomic groups

Terry J. Ord, Joan Garcia-Porta & T. J. Ord
Complex social communication is expected to evolve whenever animals engage in many and varied social interactions; that is, sociality should promote communicative complexity. Yet informal comparisons among phylogenetically independent taxonomic groups seem to cast doubt on the putative role of social factors in the evolution of complex communication. Here, we provide a formal test of the sociality hypothesis along side alternative explanations for the evolution of communicative complexity. We compiled data documenting variation in signal...

Data from: The use of MSR (Minimum Sample Richness) for sample assemblage comparisons

Kenny J. Travouillon, Gilles Escarguel, Serge Legendre, Michael Archer & Suzanne J. Hand
Minimum Sample Richness (MSR) is defined as the smallest number of taxa that must be recorded in a sample to achieve a given level of inter-assemblage classification accuracy. MSR is calculated from known or estimated richness and taxonomic similarity. Here we test MSR for strengths and weaknesses by using 167 published mammalian local faunas from the Paleogene and early Neogene of the Query and Liane area (Massif Central, southwestern France), and then apply MSR to...

Data from: Covariation in life-history traits: differential effects of diet on condition, hormones, behavior and reproduction in genetic finch morphs

Sarah R. Pryke, Lee B. Astheimer, Simon C. Griffith & William A. Buttemer
The relative contribution of genetic and environmental factors in determining variation in life-history traits is of central interest to evolutionary biologists, but the physiological mechanisms underlying these traits are still poorly understood. Here we experimentally demonstrate opposing effects of nutritional stress on immune function, endocrine physiology, parental care and reproduction between red and black head-color morphs of the Gouldian finch (Erythrura gouldiae). Although body condition of black morphs was largely unaffected by diet manipulation, red...

Registration Year

  • 2011

Resource Types

  • Dataset


  • UNSW Sydney
  • Australian National University
  • University of Lyon System
  • Macquarie University
  • Deakin University
  • Harvard University