Greater Sage-Grouse as an Umbrella Species for Shrubland Passerine Birds: A Multiscale Assessment

Hanser, Steven E.; Knick, Steven T.

doi:10.1525/california/9780520267114.003.0020

Cited by 59 publications

(87 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yet the effectiveness of these management actions in establishing sagebrush-dominated communities that support dependent wildlife, such as sage-grouse, remains unsupported by a critical evaluation and is thus unknown. We focused on the guild of sagebrush birds whose niche breadth broadly overlapped with sage-grouse (Hanser and Knick 2011) to define a functioning sagebrush ecosystem. Based on our results over the relatively short period following treatment, we suggest that few if any of the treatments conducted in these juniper woodlands are likely to increase available habitat for the sagebrush bird community, including sage-grouse.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Persistence of Western Juniper (Juniperus occidentalis) Resource Islands Following Canopy Removal

Miwa

Reuter

2010

Northwest Science

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

“…Sage-grouse is an umbrella species: other sagebrush-obligate birds show similar responses to habitat change due to overlapping requirements (Hanser and Knick 2011). Populations of smaller passerines might be better suited than sagegrouse for studies of treatment effects.…”

Section: Introductionmentioning

confidence: 99%

Persistence of Western Juniper (Juniperus occidentalis) Resource Islands Following Canopy Removal

Miwa

Reuter

2010

Northwest Science

View full text Add to dashboard Cite

“…Greater sage-grouse (Centrocercus urophasianus, hereafter sagegrouse) require large continuous areas of sagebrush-dominated ecosystems for population persistence (Knick et al, 2013), and this species is considered an indicator species for the health of sagebrush ecosystems because they require distinct ecological states to fulfill their diverse life history requirements at large spatial scales (Rowland et al, 2006;Hanser and Knick, 2011). Populations of sage-grouse have declined concomitantly with the loss and fragmentation of sagebrush ecosystems that now occupy slightly more than half of their former range (Schroeder et al, 2004;Miller et al, 2011).…”

mentioning

confidence: 99%

Intraseasonal variation in survival and probable causes of mortality in greater sage‐grouse Centrocercus urophasianus

et al. 2013

View full text Add to dashboard Cite

The mortality process is a key component of avian population dynamics, and understanding factors that affect mortality is central to grouse conservation. Populations of greater sage-grouse Centrocercus urophasianus have declined across their range in western North America. We studied cause-specific mortality of radio-marked sage-grouse in Eureka County, Nevada, USA, during two seasons, nesting (2008)(2009)(2010)(2011)(2012) and fall (2008)(2009)(2010), when survival was known to be lower compared to other times of the year. We used known-fate and cumulative incidence function models to estimate weekly survival rates and cumulative risk of cause-specific mortalities, respectively. These methods allowed us to account for temporal variation in sample size and staggered entry of marked individuals into the sample to obtain robust estimates of survival and cause-specific mortality. We monitored 376 individual sage-grouse during the course of our study, and investigated 87 deaths. Predation was the major source of mortality, and accounted for 90% of all mortalities during our study. During the nesting season (1 April -31 May), the cumulative risk of predation by raptors (0.10; 95% CI: 0.05-0.16) and mammals (0.08; 95% CI: 0.03-013) was relatively equal. In the fall (15 August -31 October), the cumulative risk of mammal predation was greater (M (mam) ¼ 0.12; 95% CI: 0.04-0.19) than either predation by raptors (M (rap) ¼ 0.05; 95% CI: 0.00-0.10) or hunting harvest (M (hunt) ¼ 0.02; 95% CI: 0.0-0.06). During both seasons, we observed relatively few additional sources of mortality (e.g. collision) and observed no evidence of disease-related mortality (e.g. West Nile Virus). In general, we found little evidence for intraseasonal temporal variation in survival, suggesting that the nesting and fall seasons represent biologically meaningful time intervals with respect to sage-grouse survival.

show abstract

“…Sage-grouse act as an indicator-species for the health of sagebrush ecosystems because they require expanses of undisturbed sagebrush throughout the year to fulfill their life history requirements (Rowland and others, 2006;Hanser and Knick, 2011). Pinyonjuniper encroachment, in conjunction with wildfire, is a primary threat to sage-grouse populations in many parts of the Great Basin (U.S. Wildlife Service, 2013, 2015).…”

Section: Introductionmentioning

confidence: 99%

Using object-based image analysis to conduct high-resolution conifer extraction at regional spatial scales

Coates¹,

Gustafson²,

Roth³

et al. 2017

Open-File Report

View full text Add to dashboard Cite

For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment-visit https://www.usgs.gov/ or call 1-888-ASK-USGS (1-888-275-8747).For an overview of USGS information products, including maps, imagery, and publications, visit https:/store.usgs.gov.Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.Suggested citation: Coates, P.S., Gustafson, K.B., Roth, C.L., Chenaille, M.P., Ricca, M.A., Mauch, Kimberly, Sanchez-Chopitea, Erika, Kroger, T.J., Perry, W.M., and Casazza, M.L., 2017, Using object-based image analysis to conduct high-resolution conifer extraction at regional spatial scales: U.S. Geological Survey Open-File Report 2017-1093, 40 p., https://doi.org/10.3133/ofr20171093. ISSN 2331ISSN -1258 iii PrefaceThis report was developed to provide scientific and corresponding spatially explicit information regarding the distribution and abundance of conifers (namely, singleleaf pinyon [Pinus monophylla], Utah juniper [Juniperus osteosperma], and western juniper [Juniperus occidentalis]) in Nevada and northeastern California. Distributional expansion of conifers into sagebrush ecosystems over the past 150 years is a significant threat to greater sage-grouse (Centrocercus urophasianus; hereinafter, "sagegrouse") populations, as well as those of other sagebrush obligate species. Accordingly, we mapped conifers at a high resolution (1 meter) and derived multiple products (available at https://doi.org/10.5066/F7348HVC) within sage-grouse habitats of Nevada and northeastern California. These products are intended as decision support for land managers, policy-makers, and interested stakeholders to be used for a variety of management and research applications. Users also have the ability to set custom bins representing user-desired ranges of conifer cover for their own applications. Conversion Factors AbstractThe distribution and abundance of pinyon (Pinus monophylla) and juniper (Juniperus osteosperma, J. occidentalis) trees (hereinafter, "pinyon-juniper") in sagebrush (Artemisia spp.) ecosystems of the Great Basin in the Western United States has increased substantially since the late 1800s. Distributional expansion and infill of pinyon-juniper into sagebrush ecosystems threatens the ecological function and economic viability of these ecosystems within the Great Basin, and is now a major contemporary challenge facing land and wildlife managers. Particularly, pinyon-juniper encroachment into intact sagebrush ecosystems has been identified as a primary threat facing populations of greater sage-grouse (Centrocercus urophasianus; hereinafter, "sage-grouse"), which is a sagebrush obligate species. Even seemingly innocuous scatterings o...

show abstract

Greater Sage-Grouse as an Umbrella Species for Shrubland Passerine Birds: A Multiscale Assessment

Cited by 59 publications

References 0 publications

Persistence of Western Juniper (Juniperus occidentalis) Resource Islands Following Canopy Removal

Persistence of Western Juniper (Juniperus occidentalis) Resource Islands Following Canopy Removal

Intraseasonal variation in survival and probable causes of mortality in greater sage‐grouse Centrocercus urophasianus

Using object-based image analysis to conduct high-resolution conifer extraction at regional spatial scales

Contact Info

Product

Resources

About