干旱区生态环境知识资源中心(Arid): Habitat selection by nesting Eared Grebes (Podiceps nigricollis) along Great Salt Lake, Utah

Arid

DOI	10.1676/1559-4491-132.2.388
	Habitat selection by nesting Eared Grebes (Podiceps nigricollis) along Great Salt Lake, Utah
	Delahoussaye, Leah M.; Conover, Michael R.
通讯作者	Conover, MR (corresponding author), Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA.
来源期刊	WILSON JOURNAL OF ORNITHOLOGY
ISSN	1559-4491
EISSN	1938-5447
出版年	2020
卷号	132 期号:2 页码:388-397
英文摘要	Eared Grebes (Podiceps nigricollis) are colonial-nesting waterbirds that use waterbodies along Great Salt Lake (GSL), Utah, during the breeding season. We examined the habitat characteristics of nesting colonies established by Eared Grebes, including water depth, invertebrate biomass density, vegetation species, vegetation cover, waterbody area, distance to shore, distance to nearest emergent vegetation, and distance to GSL. Samples and measurements were taken during the summer of 2018 from inside Eared Grebe nesting colonies, outside colonies but within the same waterbody, and unused waterbodies that did not contain colonies. We compared colonies sites to non-colonies sites that were within the same waterbody using logistic regression to build models and found no differences between them, suggesting that space for a colony is not lacking within a colony waterbody. Colony waterbodies differed from unused waterbodies (those not containing a colony) in having deeper water and higher percent cover of submerged aquatic vegetation. Results from Eared Grebe colonies around GSL were compared to colonies found in a literature review. Water depth in colonies around GSL were shallower than colonies located elsewhere. All of the colonies in this study were established on mats of submerged aquatic vegetation as opposed to colonies in other studies that were built on emergent vegetation. Wildlife biologists around GSL can manage for nesting Eared Grebes by maintaining a water depth (35-55 cm) that is conducive for submerged aquatic vegetation growth and high invertebrate densities. Climate change models predict that the American Southwest, which is already arid, will become drier in the future. When combined with increasing diversions of water for human uses, the waterbodies where Eared Grebes currently locate their colonies may become entirely dry or too shallow in the future to sustain them.
英文关键词	American Southwest breeding range climate change colonial nesting colony-site selection habitat selection nest-site selection water diversion
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000617763600014
WOS关键词	SITE SELECTION
WOS类目	Ornithology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369123
作者单位	[Delahoussaye, Leah M.; Conover, Michael R.] Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA; [Delahoussaye, Leah M.] US Fish & Wildlife Serv, Avon Pk, FL USA
推荐引用方式 GB/T 7714	Delahoussaye, Leah M.,Conover, Michael R.. Habitat selection by nesting Eared Grebes (Podiceps nigricollis) along Great Salt Lake, Utah[J],2020,132(2):388-397.
APA	Delahoussaye, Leah M.,&Conover, Michael R..(2020).Habitat selection by nesting Eared Grebes (Podiceps nigricollis) along Great Salt Lake, Utah.WILSON JOURNAL OF ORNITHOLOGY,132(2),388-397.
MLA	Delahoussaye, Leah M.,et al."Habitat selection by nesting Eared Grebes (Podiceps nigricollis) along Great Salt Lake, Utah".WILSON JOURNAL OF ORNITHOLOGY 132.2(2020):388-397.