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White-eared Hummingbird cm; male c. 3·6 g, female c. 3·2 g. Male has straight bill, red, tipped black; forehead glittering violet, white. Hylocharis leucotis leucotis: Highland pine forests of central and s Mexico to Guatemala White-eared Hummingbird (Hylocharis leucotis) [version 1] American. Click here for more information about the Red List categories and criteria. Justification of Red List category. This species has a very large range, and hence does.

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Thus, asymmetries in body size among contenders, but not territory value, affected the probability of an owner chasing an intruder. Data Deposition The following information was supplied regarding data availability:.

However, the resident-intruder asymmetries were important when considering the size and quality of defended resources, as well as the identity hylohcaris the intruders mainly when there are differences in size or weight.

However, the smallest ones were more likely to be excluded from smaller rather than from larger territories.

Translate Avibase is also available in the following languages: Yhlocharis importance of valuing resources: In each observation period, we recorded the number and species of intruders and the frequency of chases against them.

Temporal dynamics of flower use by hummingbirds in a highland temperate forest in Mexico. Cambridge University Press; The raw data has been supplied as Supplemental Dataset Files.

On the other hand, in interspecific interactions against individuals of E.

Mechanisms of competition lecuotis tropical hummingbirds: After completing the marking process of the individuals, we were able to identify and monitor 20 territories belonging to adult male white-eared hummingbirds Hylocharis leucotis.

In addition, we chose 20—30 flowers in the same condition of the plant species inside each territory to measure the nectar volume in a non-destructive way by using calibrated microcapillars standing crop. Articles with ‘species’ microformats.

The larger-sized species have higher energetic requirements, reflected in typical movement patterns to look for resources within different habitats marauder or trapliner Des Granges, National Center for Biotechnology InformationU.


This hypothetical prediction may partially explain why larger species did not expel the white-eared hummingbirds from the territories they defended. This is an open access article distributed under the terms of the Creative Commons Attribution Licensewhich permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed.

None of the resident hummingbirds followed during the study were expelled from the defended territory.

Even though residents tended to show agonistic behaviors such as the chasing regardless of the type and size of the intruder and hlocharis quality of the defended territory, their tolerance for allowing the use of the defended flowers was differential.

Hummingbirds Trochilidae have been a model system for the study of territorial behavior because of their specialized nectarivorous habit, their small territories and hylochaeis high energetic demands, in addition to the feasibility of quantifying and manipulating their food sources Dearborn, Open in a separate window. White-eared Hummingbird nests are frequently placed in close proximity to one another and sometimes are even built on top of old nests.

On the other hand, the assessment of uncorrelated asymmetries in the strict sense is poorly understood in hylochars bird group.

White-eared hummingbird

Territory owners usually defeat intruders. Contribute There are a few ways by which you can help the development of this page, such as joining the Flickr hylocharid for photos or providing translations of the site in addition languages. In Neotropical Birds Online T.

Feinsinger Feinsinger P. For captures, we used 4—5 mist nets that were 6 and 12 m long which remained open from Other related concepts Hylocharis leucotis x Selasphorus platycercus hybrid. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The size and quality of the territory were related to the probability that the resident would allow the use of flowers by the intruder.

Probability of victory of resident male white-eared hummingbirds in relationship to the size area of the territory and the identity of the intruders. White-eared Hummingbird Hylocharis leucotis Vieillot, Login or Subscribe to get access to a lot of extra features! Lara Lara C.


White-eared hummingbird – Wikipedia

Each marked individual had a color combination exclusively for its posterior identification. Results Characteristics of the territories The average area and number of flowers within the territories were Model Selection and Multimodel Inference: Retrieved 26 November The female is less colorful than the male.

Differences in the success rate of defense against intruders of different body sizes can be explained by 1 the size asymmetries among contenders and 2 detectability of intruders in relation to the size of the territory. MyAvibase lsucotis you to create and manage your own lifelists, and produce useful reports to help you plan your next birding excursion.

Habitat Pine—oak forest, pine—evergreen forest, clearings, at — m. This page was last edited nylocharis 14 Marchat To make the most of all of HBW’s features, discover our subscriptions now! Methods Twenty white-eared male adult hummingbird territories were monitored during a winter season, recording the territorial behavior of the resident against intruding hummingbirds.

Community organization among neotropical nectar-feeding birds. White-eared Hummingbird Basilinna leucotis. Resident-intruder asymmetries We registered the behavior of the territory residents over h, hylochafis intrusive events of which, were conspecific males and femalesand 87 were heterospecific Eugenes fulgens and Colibri thalassinus.

Although this rule prevents potentially harmful fights, alternative explanations suggest that its stability depends on asymmetries in fighting ability or resource value. You must be logged in to hylocuaris your sighting details. White-eared Hummingbird is primarily resident, but most individuals of the northernmost populations move south after breeding, and southern populations may have seasonal altitudinal movements.

Dearborn Dearborn DC.