| dc.creator | ZANOTTO,FLAVIA P. | |
| dc.creator | BICUDO,J.E.P.W. | |
| dc.date | 2005-01-01 | |
| dc.date.accessioned | 2019-04-25T12:53:29Z | |
| dc.date.available | 2019-04-25T12:53:29Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200012 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/62735 | |
| dc.description | The objective of this work was to link hummingbird feeding behavior with metabolic regulation and in addition to assess whether dietary composition would affect entrance into torpor. Hummingbirds were fed a combination of diets with contrasting amounts of protein and carbohydrate. The diets were composed of the following: 2.4 % protein (P) - 12 % sucrose (S) and 0.8 % protein (P) - 36 % sucrose (S). The main findings showed that periods of feeding on each of the diets could be distinguished as separate bouts or feeding events. Hummingbirds presented to high protein-low carbohydrate diets (2.4P-12S) ingested a larger volume of diet, fed for longer (both around 1.7x) and increased the interval between feedings compared with hummingbirds fed diets 0.8P-36S. Physiological regulation between feeding events, on the other hand, was achieved through an increase in metabolic rate for low protein-high sugar diets (0.8P-36S). This response could probably be related to high sucrose assimilation rates through the digestive system of hummingbirds, a process already known to be very efficient in these birds. Additionally, there was a steeper decrease in oxygen consumption for hummingbirds fed diets 2.4P-12S during fasting and a suggestion of a higher torpor incidence in birds fed these diets | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Sociedad de Biología de Chile | |
| dc.relation | 10.4067/S0716-078X2005000200012 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Revista chilena de historia natural v.78 n.2 2005 | |
| dc.subject | hummingbird feeding | |
| dc.subject | carbohydrate and protein interaction | |
| dc.subject | unbalanced diet | |
| dc.subject | feeding behavior | |
| dc.subject | torpor | |
| dc.title | Dietary protein and carbohydrate affect feeding behavior and metabolic regulation in hummingbirds (Melanotrochilus fuscus) | |
