This field study of female and immature migratory rufous hummingbirds (Selasphorus rufus) reveals that their feeding territories are closely regulated in size to maintain environmental reserves of energy per individual. Columbine (Aquilegia formosa) produces nectar about four times as fast per nectary as Indian paintbrush (Castilleja miniata) but territories have similar daily caloric productivity regardless of their floral species composition.Une étude en nature de femelles et d'oisilons du colibri migrateur Selasphorus rufus démontre que les territoires où ils se nourrissent sont délimités de façon à ce qu'il y ait dans le milieu une réserve constante d'énergie par individu. L'ancolie (Aquilegia formosa) produit son nectar environ quatre fois plus vite par nectaire que la castilléjie Castilleja miniata, mais les territoires ont des productivités caloriques quotidiennes semblables, quelle que soit la composition de la population florale.[Traduit par le journal]
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.