翻訳と辞書 Words near each other ・ Redberry (electoral district) ・ Redberry juniper ・ Redberry Lake (Saskatchewan) ・ Redberry mite ・ Redbird ・ Redbird (comics) ・ Red-tailed squirrel ・ Red-tailed tropicbird ・ Red-tailed vanga ・ Red-tailed wheatear ・ Red-thighed sparrowhawk ・ Red-throated alethe ・ Red-throated ant tanager ・ Red-throated barbet ・ Red-throated bee-eater ・ Red-throated caracara ・ Red-throated cliff swallow ・ Red-throated loon ・ Red-throated lorikeet ・ Red-throated parakeet ・ Red-throated parrotfinch ・ Red-throated piping guan ・ Red-throated pipit ・ Red-throated squirrel ・ Red-throated sunbird ・ Red-throated thrush ・ Red-throated tit ・ Red-throated twinspot ・ Red-throated wood rail ・ Red-throated wryneck Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Red-throated caracara ： ウィキペディア英語版 Red-throated caracara The red-throated caracara (''Ibycter americanus'') is a social species of bird of prey in the family Falconidae. It is placed in the monotypic genus ''Ibycter'', or sometimes united in ''Daptrius'' with the black caracara. Unique among caracaras, it mainly feeds on the larvae of bees and wasps, but also takes the adult insects and fruits and berries. It is found from Mexico south to Venezuela in most of Central and South America. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. ==Diet== The red-throated caracara’s diet consists mainly of wasp and bee larvae, though it will eat mature insects and also forage on fruits and berries found in the humid subtropical and tropical lowlands, and mountainous regions of its Central and South American habitat. Biodiversity of the forest ecosystem is paramount for the birds' special diet, since wasps and bees often make their nests in hollows or amongst branches of mature trees found in old-growth forests. Deforestation and intensive agriculture practices severely hamper the red-throated caracara’s population, likely accounting for its rare sightings today. After the 1950’s, both its population and range rapidly declined in Costa Rica, Honduras, Panama, Ecuador, and French Guiana, causing the species to be placed on the World Wildlife endangered list. Until 2013, very little was known of the red-throated caracara’s feeding behavior until a team of Canadian biologists from the University of Simon Fraser spent months researching the birds using camera surveillance at the Nouragues Field Station in French Guiana. The scientific footage shows the birds using a rapid-fire “fly-by” aerial-diving attack strategy to knock nests down onto the forest floor, while skillfully evading most wasp stings. The birds use air squadron precision, repeatedly diving then scooping upward, to drive off or confuse angry defender swarms around the hive.〔(Birds outsmart wasps to feed young - SFU News - Simon Fraser University )〕 Researchers also found that neotropical defender wasps eventually abandon their damaged hives and retreat, alongside smaller worker wasps, to rebuild a new nest site. All predators evolve ways of hunting or trapping prey. Biologist Sean McCann observed that these intelligent birds have a highly specialized predation trait in response the wasps’ behavior to cut losses and rebuild elsewhere.〔 The predation impact on the numbers of prey populations is undetermined. Furthermore, it is not clear how much the red-throated caracara’s primary food source, wasp larvae, places constraints on the birds' ability to survive since their complex predation is interlinked with neotropical wasp behavior. Knowledge of the birds' chemical resistance to stings is also unknown. Chemical traces found on the birds’ feet are similar to those secreted from Azteca ants, likely contacted along tree branches and nest sites which both species inhabit. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Red-throated caracara」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.