干旱区生态环境知识资源中心(Arid): Effects of scale and land cover on loggerhead shrike occupancy

Arid

DOI	10.1002/jwmg.21587
	Effects of scale and land cover on loggerhead shrike occupancy
	Froehly, Jennifer L.1; Tegeler, Amy K.2; Jachowski, Catherine M. Bodinof 1; Jachowski, David S.1
通讯作者	Froehly, Jennifer L.
来源期刊	JOURNAL OF WILDLIFE MANAGEMENT
ISSN	0022-541X
EISSN	1937-2817
出版年	2019
卷号	83 期号:2 页码:426-434
英文摘要	The loggerhead shrike (Lanius ludovicianus) is a species of concern throughout its range because of severe population declines over the past 7 decades. Grassland habitat loss and fragmentation is widely viewed as contributing to the decline. Habitat associations have primarily been studied up to the territory scale, with few studies assessing shrike habitat selection at landscape scales. We conducted roadside passive-active point counts for loggerhead shrikes in the coastal plain of South Carolina to evaluate detection probability and how land use and habitat fragmentation at multiple spatial scales influenced the occupancy of loggerhead shrikes. Detection probability increased with fair weather to 63% with clear skies, with temperature to 83% at 28 degrees C, and with declining noise to 63% at no noise. High probability of detection at mean covariate conditions (P = 0.49 +/- 0.08 [SE]) indicated support for the application of passive point counts in future loggerhead shrike monitoring. Occupancy was best predicted by percentage of pasture within 1 km, where predicted occupancy increased from 2 +/- 0.02% when there was 0% pasture in a 1-km radius, to 98 +/- 0.03% occupancy when there was 43% pasture in a 1-km radius, though our model-averaged occupancy estimate was low (psi = 0.17 +/- 0.05). Extrapolation of our averaged model suggested that only 8% of the South Carolina coastal plain was occupied by loggerhead shrikes in the 2016 and 2017 breeding seasons. Our results highlight the importance of habitat beyond breeding territories and highlight the need for the establishment of higher concentrations of pasture and grassland at a 1-km scale to increase the proportion of area in South Carolina occupied by shrikes. (c) 2018 The Wildlife Society.
英文关键词	detection probability fragmentation grassland birds land cover Lanius ludovicianus loggerhead shrike occupancy
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000455486900017
WOS关键词	REPRODUCTIVE SUCCESS ; CHIHUAHUAN DESERT ; GRASSLAND BIRDS ; UNITED-STATES ; HABITAT USE ; ABUNDANCE ; AVAILABILITY ; SELECTION ; MODELS
WOS类目	Ecology ; Zoology
WOS研究方向	Environmental Sciences & Ecology ; Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217426
作者单位	1.Clemson Univ, Dept Forestry & Environm Conservat, 261 Lehotsky Hall, Clemson, SC 29634 USA; 2.South Carolina Dept Nat Resources, 900 Clemson Rd, Columbia, SC 29229 USA
推荐引用方式 GB/T 7714	Froehly, Jennifer L.,Tegeler, Amy K.,Jachowski, Catherine M. Bodinof,et al. Effects of scale and land cover on loggerhead shrike occupancy[J],2019,83(2):426-434.
APA	Froehly, Jennifer L.,Tegeler, Amy K.,Jachowski, Catherine M. Bodinof,&Jachowski, David S..(2019).Effects of scale and land cover on loggerhead shrike occupancy.JOURNAL OF WILDLIFE MANAGEMENT,83(2),426-434.
MLA	Froehly, Jennifer L.,et al."Effects of scale and land cover on loggerhead shrike occupancy".JOURNAL OF WILDLIFE MANAGEMENT 83.2(2019):426-434.