Fruit color choices of captive Silvereyes (Zosterops lateralis)

Article Abstract:

Silvereyes, Zosterops lateralis, are frugivorous birds that exhibit a strong overall preference for red, when exposed to red, yellow and white artificial or actual fruits. The attraction of Silvereyes to red fruits remains unaltered even after they are maintained on a particular colored diet. Their preference for red fruits is independent of the spatial format of presentation. Fruit selection is based on the hue rather than the brightness. Thus, red fruit coloration is an adaption for promoting avian frugivory and seed dispersal.

Behavior, Frugivores, Color of fruit, Fruit color, White-eyes (Birds)

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Seasonal effects on metabolism and thermoregulation in Northern Bobwhite

Article Abstract:

The seasonal effects on metabolism and thermoregulation in Northern Bobwhite were studied and measured by using basal metabolic rate, metabolic response to temperature and maximal capacity for thermogenesis. Data gathered reveal that only a small adjustment of metabolism or insulation is needed by Northern Bobwhites. This is a characteristic present in relatively large birds and is considered an effective insulation method in regions with mild winter climates.

Research, Metabolism, Passeriformes, Perching birds, Thermogenesis

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