Joan C. Hagar

1.1k total citations
42 papers, 771 citations indexed

About

Joan C. Hagar is a scholar working on Ecology, Global and Planetary Change and Nature and Landscape Conservation. According to data from OpenAlex, Joan C. Hagar has authored 42 papers receiving a total of 771 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Ecology, 24 papers in Global and Planetary Change and 21 papers in Nature and Landscape Conservation. Recurrent topics in Joan C. Hagar's work include Rangeland and Wildlife Management (18 papers), Fire effects on ecosystems (18 papers) and Ecology and Vegetation Dynamics Studies (16 papers). Joan C. Hagar is often cited by papers focused on Rangeland and Wildlife Management (18 papers), Fire effects on ecosystems (18 papers) and Ecology and Vegetation Dynamics Studies (16 papers). Joan C. Hagar collaborates with scholars based in United States. Joan C. Hagar's co-authors include Brenda C. McComb, Bianca N.I. Eskelson, Matthew G. Betts, Hailemariam Temesgen, Tom Manning, James W. Rivers, Shay Howlin, Lisa M. Ganio, Lisa Madsen and John D. Alexander and has published in prestigious journals such as SHILAP Revista de lepidopterología, Remote Sensing of Environment and Biological Conservation.

In The Last Decade

Joan C. Hagar

40 papers receiving 702 citations

Peers

Joan C. Hagar
Polly C. Buotte United States
Yan Boucher Canada
Assu Gil‐Tena Spain
Monique E. Rocca United States
Jonas Dahlgren Sweden
James R. Strittholt United States
Teresa J. Eyre Australia
Edna Rödig Germany
Mark H. Huff United States
Meredith W. Cornett United States
Polly C. Buotte United States
Joan C. Hagar
Citations per year, relative to Joan C. Hagar Joan C. Hagar (= 1×) peers Polly C. Buotte

Countries citing papers authored by Joan C. Hagar

Since Specialization
Citations

This map shows the geographic impact of Joan C. Hagar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Joan C. Hagar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Joan C. Hagar more than expected).

Fields of papers citing papers by Joan C. Hagar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Joan C. Hagar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Joan C. Hagar. The network helps show where Joan C. Hagar may publish in the future.

Co-authorship network of co-authors of Joan C. Hagar

This figure shows the co-authorship network connecting the top 25 collaborators of Joan C. Hagar. A scholar is included among the top collaborators of Joan C. Hagar based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Joan C. Hagar. Joan C. Hagar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Kim, Hankyu, Rodney B. Siegel, Joan C. Hagar, et al.. (2024). Annual migratory movement, apparent molt-migration, migration schedule, and diffuse migratory connectivity of Hermit Warblers. Avian Conservation and Ecology. 19(2).
2.
3.
4.
Halpern, Charles B., et al.. (2022). Level and pattern of overstory retention shape the abundance and long-term dynamics of natural and created snags. Forest Ecology and Management. 526. 120575–120575. 3 indexed citations
5.
Poessel, Sharon A., et al.. (2019). Removal of cattle grazing correlates with increases in vegetation productivity and in abundance of imperiled breeding birds. Biological Conservation. 241. 108378–108378. 6 indexed citations
6.
Verschuyl, Jake, et al.. (2018). Herbicides and herbivory interact to drive plant community and crop‐tree establishment. Ecological Applications. 28(8). 2011–2023. 23 indexed citations
7.
Hagar, Joan C., et al.. (2018). Use of created snags by cavity‐nesting birds across 25 years. Journal of Wildlife Management. 82(7). 1376–1384. 9 indexed citations
8.
Hagar, Joan C., et al.. (2018). Modeling habitat for Marbled Murrelets on the Siuslaw National Forest, Oregon, using lidar data. Antarctica A Keystone in a Changing World. 2 indexed citations
9.
10.
Betts, Matthew G., et al.. (2013). Bird-vegetation associations in thinned and unthinned young Douglas-fir forests 10years after thinning. Forest Ecology and Management. 310. 1057–1070. 8 indexed citations
11.
Puettmann, Klaus J., et al.. (2013). Management, Morphological, and Environmental Factors Influencing Douglas-Fir Bark Furrows in the Oregon Coast Range. Western Journal of Applied Forestry. 28(3). 97–106. 7 indexed citations
12.
Hagar, Joan C., et al.. (2012). Arthropod prey for riparian associated birds in headwater forests of the Oregon Coast Range. Forest Ecology and Management. 285. 213–226. 12 indexed citations
13.
Eskelson, Bianca N.I., Lisa Madsen, Joan C. Hagar, & Hailemariam Temesgen. (2011). Estimating Riparian Understory Vegetation Cover with Beta Regression and Copula Models. Forest Science. 57(3). 212–221. 66 indexed citations
14.
Manning, Tom, Joan C. Hagar, & Brenda C. McComb. (2011). Thinning of young Douglas-fir forests decreases density of northern flying squirrels in the Oregon Cascades. Forest Ecology and Management. 264. 115–124. 37 indexed citations
15.
Eskelson, Bianca N.I., Hailemariam Temesgen, & Joan C. Hagar. (2011). A comparison of selected parametric and imputation methods for estimating snag density and snag quality attributes. Forest Ecology and Management. 272. 26–34. 15 indexed citations
16.
Betts, Matthew G., Joan C. Hagar, James W. Rivers, et al.. (2010). Thresholds in forest bird occurrence as a function of the amount of early‐seral broadleaf forest at landscape scales. Ecological Applications. 20(8). 2116–2130. 99 indexed citations
17.
Hagar, Joan C., et al.. (2009). Young Stand Thinning and Diversity Study: Response of Songbird Community One Decade Post-Treatment. Antarctica A Keystone in a Changing World. 7 indexed citations
18.
Hagar, Joan C., Katie M. Dugger, & Edward E. Starkey. (2007). ARTHROPOD PREY OF WILSON'S WARBLERS IN THE UNDERSTORY OF DOUGLAS-FIR FORESTS. The Wilson Journal of Ornithology. 119(4). 533–546. 21 indexed citations
19.
Olson, Deanna H., et al.. (2003). Wildlife-Habitat Relationships in Oregon and Washington. Northwestern Naturalist. 84(1). 47–47. 5 indexed citations
20.
Holthuijzen, Anthonie M. A., et al.. (1987). Bathing behavior of nesting Prairie Falcons (Falco mexicanus) in southwestern Idaho. The Wilson Journal of Ornithology. 991(1). 135–136. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Polly C. Buotte Breakdown of academic impact, for papers by Yan Boucher Breakdown of academic impact, for papers by Assu Gil‐Tena Breakdown of academic impact, for papers by Monique E. Rocca Breakdown of academic impact, for papers by Jonas Dahlgren Breakdown of academic impact, for papers by James R. Strittholt Breakdown of academic impact, for papers by Teresa J. Eyre Breakdown of academic impact, for papers by Edna Rödig Breakdown of academic impact, for papers by Mark H. Huff Breakdown of academic impact, for papers by Meredith W. Cornett
Rankless by CCL
2026