Show simple item record

Files in this item


Item metadata

dc.contributor.advisorHealy, Sue
dc.contributor.authorTello Ramos, Maria Cristina
dc.description.abstractCentral place foragers, such as territorial hummingbirds, feed from resources that tend to be constant in space and to replenish with time (e.g. nectar in flowers). The ability to remember both where and when resources are available would allow these animals to forage efficiently. Animals that feed at multiple locations would also benefit from forming routes between these multiple locations. Hummingbirds are thought to forage by repeating the order in which they visit several locations following a route called a “trapline”, although there are no quantitative data describing this behaviour. As a first step to determining how and if wild free living hummingbirds forage by traplining, I decomposed this behaviour into some of its key components. Through five field experiments, where I trained free-living hummingbirds to feed from artificial flowers, I confirmed that territorial hummingbirds will, in fact, trapline. Birds will use the shortest routes to visit several locations and will prioritize those locations that are closest to a usual feeding site. Additionally, even though hummingbirds can learn to use temporal information when visiting several patches of flowers, the spatial location of those patches has a larger influence in how these birds forage in the wild. Since male and female hummingbirds were thought to forage differently I also tested whether there were sex differences in the types of cues they use when foraging. Contrary to expectation, female hummingbirds will also use spatial cues to relocate a rewarded site. Using the foraging ecology of rufous hummingbirds to formulate predictions as to what information these birds should use has lead me to discover that these birds forage in a completely different way than previously thought.en_US
dc.publisherUniversity of St Andrews
dc.relationThe work described in Chapter 3 forms the basis of “Tello-Ramos, Maria C., Hurly, T Andrew & Healy, Susan D. 2015. Traplining in hummingbirds: flying short-distance sequences among several locations. Behavioral Ecology. 26: 812-819”.en_US
dc.relationThe work described in Chapter 4 forms the basis for the paper “Tello-Ramos Maria C., Hurly, T Andrew, Higgott, Caitlin & Healy, Susan D. 2015. Time-place learning in wild, free-living hummingbirds. Animal Behaviour. 104:123-129”.en_US
dc.relationThe work presented in Chapter 6 forms part of “Tello-Ramos, Maria. C., Hurly, T. Andrew & Healy, Susan D. 2014. Female hummingbirds do not relocate rewards using colour cues. Animal Behaviour.93: 129-133”.en_US
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.subjectForaging behaviouren_US
dc.subjectTraplining (route following)en_US
dc.subjectTime-place learningen_US
dc.subjectSex differencesen_US
dc.subject.lcshBird navigationen_US
dc.titleThe foraging behaviour of hummingbirds through space and timeen_US
dc.contributor.sponsorRussell Trusten_US
dc.contributor.sponsorConsejo Nacional de Ciencia y Tecnología (CONACyT) (Mexico)en_US
dc.type.qualificationnamePhD Doctor of Philosophyen_US
dc.publisher.institutionThe University of St Andrewsen_US

The following license files are associated with this item:

  • Creative Commons

This item appears in the following Collection(s)

Show simple item record

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted within the work, this item's license for re-use is described as Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International