Arid
DOI10.1186/s40693-017-0064-3
Winter diet of the long-eared owl Asio otus (Strigiformes: Strigidae) in the grasslands of Janos, Chihuahua, Mexico
Gonzalez-Rojas, Jose I.; Padilla-Rangel, Hernaldo; Ruvalcaba-Ortega, Irene; Cruz-Nieto, Miguel A.; Canales-del-Castillo, Ricardo; Guzman-Velasco, Antonio
通讯作者Gonzalez-Rojas, Jose I.
来源期刊REVISTA CHILENA DE HISTORIA NATURAL
ISSN0716-078X
EISSN0717-6317
出版年2017
卷号90
英文摘要

Background: The long-eared owl (Asio otus) has a Holarctic distribution, including much of North America. This nocturnal species is considered to be extremely secretive, and poorly known in the Great Plains of the United States and Canada, as well as to Mexico, where no previous studies on its diet have been conducted.


Findings: We analyzed 120 pellets collected during January 2007 in roosts in a 2-3 m height mesquite scrub within a grassland area of Reserva Ecologica El Uno, located in the Natural Protected Area Janos. We registered and identified three orders, four families, eight genera and ten species of mammals and two orders and one family of insects. Winter diet is dominated by mammals, especially rodents in both frequency and biomass. Cricetidae and Perognathus flavus were the most frequent family and species, respectively. On the other hand, when analyzing biomass, Sigmodon species were dominant, achieving almost 70% of the consumed biomass. Levin’s standardized niche breath based on frequency was calculated as 0.40, while based on biomass was 0.38. Also, two previously unrecorded rodent species were identified as long-eared owl prey.


Conclusion: Although 18 different types of items were identified, the long-eared owl tends to be selective, with a single genera (Sigmodon) comprising almost 70% of its consumed biomass during winter. Perognathus flavus was also important in frequency (21%); however, it barely constitutes 2% of the consumed biomass.


英文关键词Winter diet Long-eared owl Grasslands Janos Mexico
类型Article
语种英语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000392889300001
WOS关键词FEEDING ECOLOGY ; COMMUNAL ROOST ; FOOD-HABITS ; DESERT ; PREY
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/202073
作者单位UANL, Fac C Biol, Av Univ S-N,Cd Univ, San Nicolas De Los Garza 66455, Leon, Mexico
推荐引用方式
GB/T 7714
Gonzalez-Rojas, Jose I.,Padilla-Rangel, Hernaldo,Ruvalcaba-Ortega, Irene,et al. Winter diet of the long-eared owl Asio otus (Strigiformes: Strigidae) in the grasslands of Janos, Chihuahua, Mexico[J],2017,90.
APA Gonzalez-Rojas, Jose I.,Padilla-Rangel, Hernaldo,Ruvalcaba-Ortega, Irene,Cruz-Nieto, Miguel A.,Canales-del-Castillo, Ricardo,&Guzman-Velasco, Antonio.(2017).Winter diet of the long-eared owl Asio otus (Strigiformes: Strigidae) in the grasslands of Janos, Chihuahua, Mexico.REVISTA CHILENA DE HISTORIA NATURAL,90.
MLA Gonzalez-Rojas, Jose I.,et al."Winter diet of the long-eared owl Asio otus (Strigiformes: Strigidae) in the grasslands of Janos, Chihuahua, Mexico".REVISTA CHILENA DE HISTORIA NATURAL 90(2017).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Gonzalez-Rojas, Jose I.]的文章
[Padilla-Rangel, Hernaldo]的文章
[Ruvalcaba-Ortega, Irene]的文章
百度学术
百度学术中相似的文章
[Gonzalez-Rojas, Jose I.]的文章
[Padilla-Rangel, Hernaldo]的文章
[Ruvalcaba-Ortega, Irene]的文章
必应学术
必应学术中相似的文章
[Gonzalez-Rojas, Jose I.]的文章
[Padilla-Rangel, Hernaldo]的文章
[Ruvalcaba-Ortega, Irene]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。