Are morphology-performance relationships invariant across different seasons? A test with the green anole lizard (Anolis carolinensis)

Article Abstract:

The hypothesis that morphology-performance relationships is tested, which are invariant across different seasons, by examining how a key performance relationship trait, bite force and two aspects of morphology changed seasonally in the field and in the laboratory in the green anole lizard Anolis carolinensis. For several species of Caribbean Anolis lizards, the relative size of the dewlap is a significant predictor of maximum bite force, but that study was conducted at a single point of time.

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The evolution of density-dependent dispersal in a noisy spatial population model

Article Abstract:

The evolution of density-dependent dispersal is studied in a coupled map lattice model, where the population dynamics are perturbed by external environmental noise. The results have proved to be robust to changes in the type of population dynamics, local competition and temporal autocorrelation of the environmental noise.

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The evolution of egg size in socially polyandrous shorebirds

Article Abstract:

Research on the polyandrous shore bird of the suborder Charadrii suggests that reduction in egg-laying costs is achieved through an evolutionary decrease in egg size, rather than a decrease in clutch size or an increase in female body size.

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