干旱区生态环境知识资源中心(Arid): Factors influencing detectability and responses of Elf Owls to playback of conspecific vocalizations

Arid

DOI	10.1111/jofo.12372
	Factors influencing detectability and responses of Elf Owls to playback of conspecific vocalizations
	Flesch, Aaron D.; Boone, John; Vander Pluym, David; Sabin, Laura Beth
通讯作者	Flesch, AD (corresponding author), Univ Arizona, Sch Nat Resources & Environm, Desert Lab Tumamoc Hill, 1675 West Anklam Rd, Tucson, AZ 85745 USA.
来源期刊	JOURNAL OF FIELD ORNITHOLOGY
ISSN	0273-8570
EISSN	1557-9263
出版年	2021
卷号	92 期号:3 页码:246-259
英文摘要	Broadcasting conspecific vocalizations is commonly used to survey secretive, inconspicuous, and uncommon species of birds, but information about how response behaviors vary across temporal and broad spatial gradients is limited for most species despite the importance of such data for guiding survey efforts. We assessed response patterns and detection probability of Elf Owls (Micrathene whitneyi) across broad ecological gradients in the Sonoran and Chihuahuan deserts of Arizona that spanned much of their breeding range in the United States. From March to June 2015-2017, we examined response times and distances of an estimated 587 Elf Owls detected during playback surveys at 1488 stations along 121 transects (193 km). Additionally, from April to June 2010-2011 and 2016-2017, we examined detection probability during 255 playback experiments at occupied nests and modeled the influence of spatial, temporal, moon illumination, vegetation, conspecific densities, and weather-related factors on detection probability. During transect surveys, response times were rapid (mean = 2.0 min), with 75% of detections within 3 min. Owls often responded close to broadcast stations (mean = 103 m), with only 25% of responses at distances > 140 m and none > 400 m. Response times were faster and from greater distances in the more arid western portion of our study area. During playback experiments at nests, detection probability averaged 0.65 and declined with increasing time of night, time of season, and noise levels. Detection probability also declined with increasing distance from target owls, but at lower rates in the western than the eastern portion of our study area. Spatial variation in detectability was primarily due to surveyors failing to detect responding owls in areas with higher owl densities in more resource-rich environments in the east, not differences in underlying responsiveness. Our results suggest that 5 or 6 min surveys within similar to 4 h of sunset and early in the breeding season will be most effective and that spacing survey stations from 100 to 150 m apart, depending on local densities and study objectives, is adequate for estimating occupancy and abundance with relatively low false absence rates.
英文关键词	broadcast surveys detection probability ecological gradients Micrathene whitneyi response distance response time Sonoran desert tape playback surveys
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000681769200001
WOS关键词	DETECTION PROBABILITY ; BROADCAST SURVEYS ; SPOTTED OWLS ; RESPONSIVENESS ; BEHAVIOR
WOS类目	Ornithology
WOS研究方向	Zoology
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363870
作者单位	[Flesch, Aaron D.] Univ Arizona, Sch Nat Resources & Environm, Desert Lab Tumamoc Hill, 1675 West Anklam Rd, Tucson, AZ 85745 USA; [Boone, John; Vander Pluym, David] Great Basin Bird Observ, 1755 East Plumb Lane, Reno, NV 89502 USA; [Sabin, Laura Beth] Bur Reclamat, Lower Colorado River Multispecies Conservat Progr, POB 61470, Boulder City, NV 89006 USA; [Vander Pluym, David] Louisiana State Univ, Museum Nat Sci, Baton Rouge, LA 70803 USA; [Vander Pluym, David] Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA
推荐引用方式 GB/T 7714	Flesch, Aaron D.,Boone, John,Vander Pluym, David,et al. Factors influencing detectability and responses of Elf Owls to playback of conspecific vocalizations[J]. University of Arizona,2021,92(3):246-259.
APA	Flesch, Aaron D.,Boone, John,Vander Pluym, David,&Sabin, Laura Beth.(2021).Factors influencing detectability and responses of Elf Owls to playback of conspecific vocalizations.JOURNAL OF FIELD ORNITHOLOGY,92(3),246-259.
MLA	Flesch, Aaron D.,et al."Factors influencing detectability and responses of Elf Owls to playback of conspecific vocalizations".JOURNAL OF FIELD ORNITHOLOGY 92.3(2021):246-259.