Open Access. Powered by Scholars. Published by Universities.®
Ecology and Evolutionary Biology Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Ecology and Evolutionary Biology
Population And Breeding Ecology Of Sagebrush Steppe Songbirds, Kayla Ann Ruth
Population And Breeding Ecology Of Sagebrush Steppe Songbirds, Kayla Ann Ruth
Graduate Student Theses, Dissertations, & Professional Papers
Sagebrush steppe is one of the most threatened ecosystems in North America. Domestic livestock grazing is the dominant land use of sagebrush steppe across the west. Rest-rotation grazing systems can be a conservation management tool, most recently, by the Natural Resource Conservation Service - Sage Grouse Initiative (SGI). The goal of SGI is to encourage private landowners to use a livestock grazing regime that maintains or improves habitat for greater sage-grouse (Centrocercus urophasianus), as well as improve rangeland productivity. Songbirds are biological indicators that can assess the health of sagebrush steppe. Avian adult density estimates are often used …
Methods For Estimating Mountain Goat Occupancy And Abundance, Molly Mcdevitt
Methods For Estimating Mountain Goat Occupancy And Abundance, Molly Mcdevitt
Graduate Student Theses, Dissertations, & Professional Papers
Abundance and occupancy are two parameters of central interest to the field of ecology. Furthermore, accurate (both precise and unbiased) estimates are key pieces to the puzzle of effective wildlife management decision-making. While there exist a variety of sampling techniques and statistical models for effectively estimating population parameters for frequently encountered and large mammals, methods for sampling unmarked and rare species are few and far between. The first step to acquiring usable parameter estimates is through the use of sampling theory and incorporation of probabilistic sampling designs to collect count-data and occurrence-data. Often, it is assumed that probabilistic sampling designs …