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Habitat structural complexity and the interaction between bluegills and their prey
Bluegill sunfish restricted to experimental ponds varying in vegetation density grew better and consumed more prey at intermediate Macrophyte density than fish held at either low or high macrophyte densities, suggesting that feeding rates of predators may be maximized at intermediate structure.
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 ecological
Optimal flight initiation distance.
Chemical discrimination by tongue-flicking in lizards: A review with hypotheses on its origin and its ecological and phylogenetic relationships
  • W. Cooper
  • Biology
    Journal of Chemical Ecology
  • 1 February 1994
The advent of tongue-flicking to sample prey chemicals and thus detect hidden prey may have allowed generalist or ambush foragers to become specialists in active foraging, which in turn appears to have profoundly influenced the further evolution of squamate chemosensory structures and behavior.
The foraging mode controversy: both continuous variation and clustering of foraging movements occur
Bivariate cluster analysis supports the view that lizards fall into active and ambush modes that may reflect adaptive peaks of joint MPM and PTM values, and controversies about continuity, bimodality, and dichotomy of modes are resolved.
Locomotor impairment and defense in gravid lizards (Eumeces laticeps): behavioral shift in activity may offset costs of reproduction in an active forager
Observations suggest that gravid females become less active or conspicuous on the surface to allow some species the advantages inherent in both high relative clutch mass when gravid and the increased energetic profitability of active foraging when not gravid.
When and how do predator starting distances affect flight initiation distances
The distance separating predator and prey when the predator begins to approach, starting distance, was recently shown to affect flight initiation distance in many bird species, raising questions
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 to
Threat Factors Affecting Antipredatory Behavior in the Broad-Headed Skink (Eumeces laticeps): Repeated Approach, Change in Predator Path, and Predator's Field of View
It is argued that antipredatory decisions should be made based on consequences for long-term expected fitness, but predation risk typically has been and is here considered only in the context of probability of mortality in the immediate future.