首页> 外文期刊>Florida field naturalist: a semi-annual journal of the Florida Ornithological Society >FLORIDA BURROWING OWL (Athene cunicularia floridana) PREYS ON EURASIAN COLLARED-DOVE (Streptopelia decaocto)
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FLORIDA BURROWING OWL (Athene cunicularia floridana) PREYS ON EURASIAN COLLARED-DOVE (Streptopelia decaocto)

机译:佛罗里达州花O(Athene cunicularia floridana)捕食EURASIAN斑鸠(链球菌)

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摘要

Data are sparse on the diet of Florida Burrowing Owls (Athene cunicularia floridana). What information does exist indicates that insects and other relatively small prey items predominate in the diet of this subspecies (Ridgway 1874, Cahoon 1885,Hoxie 1889,Rhoads 1892, Palmer 1896, Bent 1938,Lewis 1973,Hennemann 1980, Wesemann 1986,Yosef and Deyrup 1994,Mrykalo et al. 2009). Lewis (1973) tabulated records of pellet content analyses and determined that invertebrates and vertebrates constituted 82 and 17 percent of the owls' diets, respectively. Of these, items such as beetles, small lizards, and small rodents appear to have dominated. Mrykalo et al. (2009) found a similar preponderance of small prey items in pellets they examined. Insects were the most abundant prey item identified for both an urban site (86%) and a rural site (89.1%). Avian prey made up a larger part of owl diets on the urban study site but on both sites accounted for a very small proportion of the diets (2.9% = urban, 0.7% = rural). No data were reported to indicate the size of the birds identified as prey. Burrowing Owls are perceived as generalist feeders,consuming any terrestrial vertebrate or invertebrate that they can physically handle (Poulin et al. 2011). It seems, however, that most prey items weigh from a few grams to 60 grams. As reported by Mrykalo et al. (2009),prey of Florida Burrowing Owls other than insects have included Savannah Sparrows (Passerculus sandwichensis), Bobolinks (Dolichonyx oryzivorus), and unknown species of rodents, lizards,frogs, fish (Rhoads 1892),crabs (Bent 1938),crayfish (Rhoads 1892, Palmer 1896),and snakes (Rhoads 1892,Bent 1938).
机译:关于佛罗里达穴居猫头鹰(雅典娜c虫)的饮食资料很少。确实存在的信息表明,昆虫和其他相对较小的猎物在该亚种的饮食中占主导地位(Ridgway 1874,Cahoon 1885,Hoxie 1889,Rhoads 1892,Palmer 1896,Bent 1938,Lewis 1973,Hennemann 1980,Wesemann 1986,Yosef和Deyrup 1994,Mrykalo等。 2009)。 Lewis(1973)将颗粒含量分析的记录制成表格,并确定无脊椎动物和脊椎动物分别占猫头鹰饮食的82%和17%。其中,甲虫,小蜥蜴和小啮齿动物等物品似乎占主导地位。 Mrykalo等。 (2009年)在他们检查的颗粒中发现了类似的小型猎物优势。昆虫是城市地区(86%)和农村地区(89.1%)中最丰富的猎物。在城市研究中心,鸟类的猎物占猫头鹰饮食的大部分,但在这两个地方,猫头鹰的饮食所占比例很小(2.9%=城市,0.7%=农村)。没有数据表明被鉴定为猎物的鸟的大小。挖洞的猫头鹰被认为是多头觅食者,它们会食用它们能物理处理的任何陆地脊椎动物或无脊椎动物(Poulin等,2011)。但是,大多数猎物的重量似乎从几克到60克。如Mrykalo等报道的。 (2009年),除昆虫以外的佛罗里达穴居猫头鹰的猎物还包括大草原麻雀(Passerculus sandwichensis),Bobolinks(Dolichonyx oryzivorus)以及未知种类的啮齿动物,蜥蜴,青蛙,鱼类(Rhoads 1892),蟹(Bent 1938),小龙虾。 (Rhoads 1892,Palmer 1896)和蛇(Rhoads 1892,Bent 1938)。

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