文章基本信息

标题：Differential Use of Nectar Feeders Among Migrant and Resident Hummingbirds
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作者：Laura E. Nuñez-Rosas ; María Del Coro Arizmendi
期刊名称：Tropical Conservation Science
电子版ISSN：1940-0829
出版年度：2019
卷号：12
页码：1-5
DOI：10.1177/1940082919878960
出版社：SAGE Publications
摘要：The use of artificial nectar feeders has increased in the past decades. Feeders represent extra food resource at a low cost that can cause an increment of hummingbird populations in urban and rural areas. Assuming that migrant hummingbirds have had contact with feeders in breeding areas, we propose that when feeders are held for the first time in an area, migrant hummingbirds will be visiting the novel resource faster than the resident species. Second, assuming that the finding of new resources is correlated with habitat structure, hummingbirds will visit earlier the feeders in places with less environmental complexity as a rural area. This study was done at the southern coast of the Mexican state of Jalisco in a rural area and in a protected natural area. Three twin feeders were placed in each area and visitation was recorded in periods of 50 minutes during morning and afternoon. We found that (a) migrant hummingbird began visiting the feeders in less time than residents at all the feeders, (b) once migrants used the feeder’s residents began visiting, and (c) in the rural site visitation occurred earlier than in the natural forest. These findings support that hummingbirds learn to use novel food sources and remember used resources recognizing them at the landscape level, and that residents never exposed to an artificial food source learn to use them faster in more open areas and after migrants used them.
关键词：feeders ; resident hummingbird ; migrant hummingbird ; hummingbird learning ; Mexico