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Habitat Use and Reproductive Success...

Specht, Hannah.

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Habitat Use and Reproductive Success of Waterbirds in the Human-dominated Landscape of North America's Prairies: Using Sparse Data to Inform Management.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Habitat Use and Reproductive Success of Waterbirds in the Human-dominated Landscape of North America's Prairies: Using Sparse Data to Inform Management./
作者:	Specht, Hannah.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	204 p.
附註:	Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
Contained By:	Dissertation Abstracts International79-12B(E).
標題:	Wildlife conservation. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10824217
ISBN:	9780438168879

Habitat Use and Reproductive Success of Waterbirds in the Human-dominated Landscape of North America's Prairies: Using Sparse Data to Inform Management.
Specht, Hannah.

Habitat Use and Reproductive Success of Waterbirds in the Human-dominated Landscape of North America's Prairies: Using Sparse Data to Inform Management. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 204 p.

Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.

Thesis (Ph.D.)--University of Minnesota, 2018.

Information needed to implement effective management strategies requires an understanding of where, when and how target species use habitats available to them to survive and reproduce. I used new approaches for field data collection and analysis for rare and cryptic species to improve understanding of how anthropogenic and natural habitat characteristics affect the habitat use and reproductive success of grassland waterbirds, to better inform management in North America's Northern Great Plains. Using historical data on waterfowl age ratios at banding and a database of upland shorebird nest records, I identified spatial and temporal variation in upland nesting waterfowl and shorebird fecundity. Specifically, I found positive relationships between vole population irruptions and metrics of fecundity (age ratios and nest survival) in both upland nesting waterfowl and shorebirds, and that fecundity of both groups was tightly tied to wetland conditions; increases in wetland inundation improved dabbling duck fecundity and Marbled Godwits (Limosa fedoa) experienced higher fecundity in territories with greater wetland cover. Density dependent effects were mixed across species. I used occupancy surveys with behavioral indicators of brood presence to assess whether habitat use by conservation concern upland shorebirds and Northern Pintail (Anas acuta) was altered by oil development in the Bakken oil field, using habitat suitability models to account for natural variation in habitat quality. I found reduced habitat use by breeding pairs and/or broods of all five studied species at sites with higher traffic and that Wilson's phalarope (Phalaropus tricolor) breeding pairs avoided habitat with higher well density. Using behavior to infer brood presence facilitated identifying effects of traffic on brood habitat use where data would otherwise have been too sparse. Finally, I present a new occupancy survey sampling design that improves estimates for rare species. Management for upland-nesting waterbirds should continue to prioritize maintaining the capacity of less permanent wetland basins to rehydrate and active patch management of grassland. Infrastructure and activity that impacts grassland wildlife should be concentrated within corridors on the landscape while conservation should be concentrated in spaces between development corridors.

ISBN: 9780438168879Subjects--Topical Terms:

542165
Wildlife conservation.

Habitat Use and Reproductive Success of Waterbirds in the Human-dominated Landscape of North America's Prairies: Using Sparse Data to Inform Management.
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