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  • Influence
Optimal flight initiation distance.
We develop two optimality models, one applying when all expected future contribution to fitness (residual reproductive value) is lost if the prey dies, the other when any fitness gained (increase in expected RRV) during the encounter is retained after death. Expand
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Distribution, extent, and evolution of plant consumption by lizards
Animal diets crucially affect fitness, yet many aspects of their ultimate determinants are unknown. The distribution and extent of herbivory in lizards, its evolutionary history, and ecologicalExpand
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Chemical discrimination by tongue-flicking in lizards: A review with hypotheses on its origin and its ecological and phylogenetic relationships
  • W. Cooper
  • Biology, Medicine
  • Journal of Chemical Ecology
  • 1 February 1994
Tongue-flicking is a synapomorphy of squamate reptiles functioning to sample chemicals for vomerolfactory analysis, which became possible in primitive squamates when ducts opened from the vomeronasalExpand
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The foraging mode controversy: both continuous variation and clustering of foraging movements occur
Ambush and active foraging are held to be discrete foraging modes having important theoretical consequences and evolutionary correlates, but foraging variables (number of movements per minute (MPM)Expand
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Factors influencing escape to refuge by the broad-headed skink (Eumeces laticeps) were examined by multiple regression and correlation of quantitative escape variables and distance and direction toExpand
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Foraging mode, prey chemical discrimination, and phylogeny in lizards
The long-held hypothesis that active foragers should use chemical senses to detect food more than do ambush foragers is verified for lizards. In actively foraging and herbivorous families,Expand
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Foraging modes in lacertid lizards from southern Africa
Most lacertids are active foragers, but intrafamilial variation in foraging mode is greater than in most lizard families. We collected data on eight species of African lacertids to assess thisExpand
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Tail loss, tail color, and predator escape in Eumeces (Lacertilia: Scincidae): age-specific differences in costs and benefits
The tail loss adaptation in Eumeces of the southeastern United States is complex. Juveniles possess tails that are colored differently from those of adults and apparently distract the attention ofExpand
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Ease and effectiveness of costly autotomy vary with predation intensity among lizard populations
Costly anti-predatory defences are used in ecological time and maintained in evolutionary time by natural selection favouring individuals that survive through their use. Autotomy of expendable bodyExpand
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