Effect of dilution degree of commercial nectar and provision of fruit on food, energy and nutrient intake in two rainbow lorikeet subspecies
Abstract 10.1002/zoo.20240.abs A feeding trial was performed on adult rainbow lorikeets of two subspecies: six green-naped lorikeets (Trichoglossus haematodus haematodus) and six red-breasted lorikeets (T. haematodus mitchellii). Throughout the entire trial, half of the birds from each subspecies had ad libitum access to water-diluted commercial nectar powder and drinking water only, whereas the other half […]
Exploration of environmental changes relates to lifestyle
Decision making in informed animals is often described by optimality models. However, how information about an environment is acquired is rarely investigated. Cost/benefit considerations suggest that species differ in this respect according to their lifestyle. We tested the hypothesis that resident species react to changes in their familiar environment earlier and explore it more intensively […]