... predation danger. Birds also demonstrate an ability to maintain body mass across a range of food qualities. Although the adaptive significance of mass regulation has received a great deal of theoretical and empirical attention, the mechanisms by which birds achieve this have not. Several non-exclusive...

... when fed LP food ( Fig. 4 A,B). In contrast, adult males significantly increased assimilation of C and P by 243% and 152%, respectively, when fed LP food ( Fig. 4 C,D). These plastic male responses resulted in convergence of the sexes in assimilation under contrasting food quality. Late-stage juveniles...

...Marcus Lukas; Alexander Wacker We studied the carbon (C) metabolism in Daphnia when the amount of C (food quantity) and/or the content of biochemical nutrients (food quality) was limiting. Growth performances and C budgets of Daphnia magna (assimilation, faeces egestion, excretion and respiration...

... bees and may be a widespread adaptation facilitating rapid food collection in flying Hymenoptera. * Author for correspondence (e-mail: [email protected] ) 6 9 2006 © The Company of Biologists Limited 2006 2006 thermoregulation foraging food quality endothermy Bombus...

... nitrogen balance energy balance food quality arthropod consumption hummingbird green-backed firecrown Sephanoides sephaniodes Chile Floral nectars exploited by hummingbirds are rich in water and carbohydrates, but contain only traces of amino acids, minerals and vitamins( Baker and Baker...