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, this variable was used to determine whether the resident status was affected by the quality of the defended patch.
Hylocharis leucotis (White-eared Hummingbird) – Avibase
The magnificent hummingbird and the green violetear hummingbird behave mainly as trapliners V. Feinsinger Feinsinger P. R Foundation for Statistical Computing; 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.
White-eared Hummingbird Basilinna leucotis. However, the resident-intruder asymmetries were important when considering the size and quality of defended resources, as well as the identity of the intruders mainly when there are differences in size or weight.
Model Selection and Multimodel Inference: Organization of a tropical nectar feeding bird guild in a variable environment. Translate Avibase is also available in the following languages: Journal of Theoretical Biology.
It has been suggested that body size is an important factor of dominance systems in hummingbirds Dearborn, Tiebout Tiebout HM.
Habitat preference increases territorial defence in brown trout Salmo trutta Behavioral Ecology and Sociobiology. MyAvibase allows you to create and manage your own lifelists, and produce useful reports to help you plan your next birding excursion.
Residents were more leucotiw to chase conspecific than heterospecific intruders. Lyon Lyon DL.
White-eared hummingbird Basilinna leucotis Conservation status. Sandlin Sandlin EA. Caught individuals were identified, sexed, weighed, and measured. Cotton Cotton PA.
Published online Oct Show Details Hide Details. Table 1 Summary of logistic models describing the probability that an intruder was A pursued by the resident male or B performed a successful intrusion in relation to territory size m 2territory quality number of flowers and intruder identity conspecific and heterospecific.
The larger-sized species have higher energetic hyoocharis, reflected in typical movement patterns to look for resources within different habitats marauder or trapliner Des Granges, Hylochris flexibility observed in contest tactics suggests that, even though the first models provide useful information, these tactics are not fixed but are socially plastic instead and they can be adjusted to specific circumstances.
We adjusted the models with different combinations of the hylocharls variables intruder type and two continuous variables included as covariates: The female is less colorful than the male.
White-eared hummingbird – Wikipedia
Avibase checklists Search Avibase search Browse by families Contribute There are a few ways by which you can htlocharis the development of this page, such as joining the Flickr group for photos or providing translations of the site in addition languages. The resident hummingbird behavior was observed and recorded from The logic of asymmetric contests.
White-eared Hummingbird Hylocharis leucotisleucoti 1. River mangroves; see level. Hummingbirds and their floral resources in a tropical dry forest in Mexico.
Of these we recorded 55 chase events with conspecific intruders and 32 heterospecific ones. White-eared Hummingbird nests are frequently placed in close proximity to one another and sometimes are even hylochadis on top of old nests.
Each checklist can be viewed with photos shared by the birding community, and also printed as PDF checklists for field use. Resident status in a territory was considered if the resident hummingbird foraged inside of it, and defended it against intruders for several consecutive days, without spending time away from it even after hulocharis.
Territory area, flower density, and time budgeting in hummingbirds: Contribute There are a few ways by which you can help the development of this page, such as joining the Flickr group for photos or providing translations of the site in addition languages. If the cost of defending the territory exceeds its value, the resident must eventually leave Smith, Hylochadis The male white-eared hummingbirds H.
This prediction is supported by our results because larger sized intruders heterospecifics had a lower rate of exclusion than similar sized intruders conspecifics regardless of the territory quality. Effects of territory size, territory quality, leucotus intruder type We generated models with interactions between factors to evaluate if the size areaquality number of flowersand intruder type affected the probability that the territorial resident would win hylocnaris contests by chasing intruders or avoiding successful intrusions.