Breanna F Powers

Breanna F Powers
Northern Arizona University | NAU · College of Engineering, Forestry, and Natural Sciences

Ph.D.

About

9
Publications
936
Reads
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30
Citations
Citations since 2017
6 Research Items
23 Citations
2017201820192020202120222023024681012
2017201820192020202120222023024681012
2017201820192020202120222023024681012
2017201820192020202120222023024681012
Additional affiliations
March 2014 - February 2019
University of Auckland
Position
  • Teaching Assistant, Tutor Step 2
Description
  • ENVSCI301: Environmental Science and Decision Making GEOG103: Mapping our World ENVSCI101: Environment, Science, and Management ENVSCI201: Natural and Human Environmental Systems GEOG334: Environmental Change
September 2013 - December 2013
Oregon State University
Position
  • Instructor
Description
  • Instructor for online course. FW 107: Introduction to Fisheries and Wildlife
September 2012 - September 2014
Oregon State University
Position
  • Instructor
Description
  • Online Course FW 307: Specialization Development
Education
November 2015 - December 2019
University of Auckland
Field of study
  • Environmental Science
September 2011 - May 2014
Oregon State University
Field of study
  • Wildlife Science
August 2008 - May 2010
Fort Lewis College
Field of study
  • Biology

Publications

Publications (9)
Presentation
Full-text available
To conserve biological diversity in a changing world, managers must understand which species are vulnerable to the effects of climate change and whether there is sufficient capacity for these species to adapt. This is especially applicable to birds, who may experience changes in phenology (e.g., the timing of migration and/or breeding) in response...
Article
In migratory birds, among‐ and within‐species heterogeneity in response to climate change may be attributed to differences in migration distance and environmental cues that affect timing of arrival at breeding grounds. We used eBird observations and a within‐species comparative approach to examine whether migration distance (with latitude as a prox...
Article
Sustaining ecosystem services (ES) is a key interest in the management of land use in multifunctional landscapes (i.e. ES that support ecosystem function and sustain human livelihoods). In making land management decisions, it is important to understand the relationships and spatial distributions of multiple ES, and the synergies and trade-offs betw...
Article
Full-text available
Premise: Drought-induced tree mortality is an emergent threat to forests worldwide, particularly to large trees. Drought-manipulation experiments involving throughfall exclusion (TFE) tend to focus on large plots that can be expensive to establish and maintain and may be unsuitable for large trees or indigenous forests. We set out to establish a r...
Article
Full-text available
Article
Full-text available
Biodiversity assets often require conservation management, which, in turn, necessitates decisions about which ecosystem, community or species should be prioritised to receive resources. Population viability analysis (PVA) uses a suite of quantitative methods to estimate the likelihood of population decline and extinction for a given species, and ca...
Thesis
Background/Question/Methods In the Willamette Valley, prairie-oak butterfly species are rapidly declining as a result of loss and degradation of prairie-oak ecosystems upon which these obligate species rely. Butterflies are important for ecosystem integrity because they provide services such as pollination, prey species, and decomposition. The ob...
Article
Full-text available
Great Gray Owls (Strix nebulosa) in the Sierra Nevada Mountains feed primarily on rodents, especially voles and pocket gophers. Voles have been shown to be negatively affected by cattle grazing, but effects of grazing on gophers in the Sierra Nevada Mountains are unknown. We investigated the effects of grazing on pocket gophers (Thomomys monticola...
Thesis
The aim of the study was to evaluate changes that occurred over time in the composition of the riparian community at the Lone Dome Recreational Area, below McPhee Dam on the Dolores River, Colorado. Cover data for 14 riparian species from a 540 m line-transect were sued to evaluate community composition over time. A Bray-Curtis ordination was used...

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