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nest decoration:Black feathers prevent Crested Mynas from nest usurpation

Avian Research 2024年第2期15卷 292-297页

作者： Jinmei Liu Wei Liang Ministry of Education Key Laboratory for Ecology of Tropical Islands Key Laboratory of Tropical Animal and Plant Ecology of Hainan ProvinceCollege of Life SciencesHainan Normal UniversityHaikou571158China

nests are important structures for birds to raise their offspring and for *** birds incorporate feathers into the nest,since feathers were traditionally thought to serve the function of *** in recent years have considered that some birds place feathers in conspicuous locations in the nest for decoration to trigger a fear response in the *** this study,we investigated whether decorative feathers could deter nest usurpation by Crested Mynas(Acridotheres cristatellus)by manipulating nest box *** results revealed that Crested Mynas preferred black feathers to white feathers as decorations and occupied nest boxes decorated with black feathers significantly less than those decorated with white feathers,suggesting that black decorative feathers in the nest could be more effective in preventing nest usurpation by Crested Mynas and that white decorative feathers may have other *** black feathers in the nest are prominently placed at the edge of the nest to convey the message that“this nest is occupied”or“the owner of this nest has been preyed upon”to visitor Crested Mynas,thus effectively preventing them from usurping the nest at a later stage.

关键词： Extended phenotype Feathers nest decoration nest usurpation

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Patterns of magpie nest utilization by a nesting raptor community in a secondary forest

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Progress in Natural Science:Materials International 2009年第10期19卷 1253-1259页

作者： Tong Zhou a,Haitao Wang a,c,Yu Liu b,Fumin Lei c,Wei Gaoa,a Key Laboratory of Vegetation Ecology,Ministry of Education,School of Life Sciences,Northeast Normal University,Changchun 130024,China b Natural History Museum,Northeast Normal University,Changchun 130117,China c Institute of Zoology,Chinese Academy of Sciences,Beijing 100101,China Key Laboratory of Vegetation Ecology Ministry of Education School of Life Sciences Northeast Normal University Changchun 130024 China Institute of Zoology Chinese Academy of Sciences Beijing 100101 China Natural History Museum Northeast Normal University Changchun 130117 China

For a total of 9 years,we examined the patterns of a nesting raptor community that utilized European Magpie(Pica pica) nests in the Zuojia Natural Reserve,northeast *** raptor species and two other bird species were recorded nesting in magpie *** reuse rate of abandoned magpie nests was 51.6%,and the number of reused nests was positively correlated with their *** utilized 83.3% of the reused abandoned magpie *** followed for more than 1 year were reused by raptors an average of 1.13 ***-specific nest usurpation was common,with 17.3% of new magpie nests being usurped by raptors,and four cases of usurpation occurred among different raptor *** the community level,8 of 11 raptor species took over magpie nests to breed in the study area,and 91.9% of their nests came from magpie *** Magpies represent the core species in the nest web of the local raptor community that utilizes magpie *** the forest stand level,closer proximity to forest edges and greater distances from occupied raptor nests were the best predictors of nest *** the nest-site level,arbor density and canopy coverage were the best predictors of nest reuse.

关键词： European Magpie nest reuse nest usurpation Raptor community

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