Toggle Main Menu Toggle Search

Open Access padlockePrints

Timing in free-living rufous hummingbirds, Selasphorus rufus

Lookup NU author(s): Dr Joanne Henderson, Professor Melissa Bateson, Dr Susan Healy

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Abstract

Animals organize their lives around circannual and circadian rhythms, but little is known of their use of much shorter intervals [1]. In the laboratory, some animals can learn the specific duration (seconds or minutes) between periods of food access [2]. It has been supposed that wild nectarivores, such as hummingbirds, might also learn short time intervals so as to avoid revisiting emptied flowers until the nectar has been replenished [3]. We provided free-living, territorial rufous hummingbirds each with eight artificial flowers containing sucrose solution. Four flowers were refilled 10 min after the bird emptied them, and the other four were refilled 20 min after being emptied. Throughout the day, birds revisited the 10 min flowers significantly sooner than they revisited the 20 min flowers, and return visits to the flowers matched their refill schedules. Hummingbirds remembered the locations and timing of eight rewards, updating this information throughout the day. Not only is this the first time that this degree of timing ability has been shown in wild animals, but these hummingbirds also exhibit two of the fundamental aspects of episodic-like memory (where and when [4, 5]), the kind of memory for specific events often thought to be exclusive to humans [6, 7].


Publication metadata

Author(s): Henderson J, Hurly TA, Bateson M, Healy SD

Publication type: Article

Publication status: Published

Journal: Current Biology

Year: 2006

Volume: 16

Issue: 5

Pages: 512-515

ISSN (print): 0960-9822

ISSN (electronic): 1879-0445

Publisher: Cell Press

URL: http://dx.doi.org/10.1016/j.cub.2006.01.054

DOI: 10.1016/j.cub.2006.01.054


Altmetrics

Altmetrics provided by Altmetric


Actions

Find at Newcastle University icon    Link to this publication


Share