T.A. Spies

1.3k total citations · 1 hit paper
10 papers, 1.0k citations indexed

About

T.A. Spies is a scholar working on Global and Planetary Change, Nature and Landscape Conservation and Ecology. According to data from OpenAlex, T.A. Spies has authored 10 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Global and Planetary Change, 6 papers in Nature and Landscape Conservation and 3 papers in Ecology. Recurrent topics in T.A. Spies's work include Fire effects on ecosystems (5 papers), Forest ecology and management (4 papers) and Ecology and Vegetation Dynamics Studies (3 papers). T.A. Spies is often cited by papers focused on Fire effects on ecosystems (5 papers), Forest ecology and management (4 papers) and Ecology and Vegetation Dynamics Studies (3 papers). T.A. Spies collaborates with scholars based in United States. T.A. Spies's co-authors include Peter S. White, James R. Runkle, Julie S. Denslow, Charles D. Canham, William Platt, Mark Easter, Jerry F. Franklin, R. Bruce Bury, Steven A. Acker and Warren B. Cohen and has published in prestigious journals such as Forest Ecology and Management, Canadian Journal of Forest Research and Journal of Forestry.

In The Last Decade

T.A. Spies

9 papers receiving 813 citations

Hit Papers

Light regimes beneath closed canopies and tree-fall gaps ... 1990 2026 2002 2014 1990 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Light regimes beneath closed canopies and tree-fall gaps in temperate and tropical forests
    1990 815 citations Charles D. Canham, Julie S. Denslow et al. Canadian Journal of Forest Research profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
T.A. Spies United States 6 730 576 265 220 192 10 1.0k
Paula Bartemucci Canada 10 834 1.1× 675 1.2× 211 0.8× 298 1.4× 131 0.7× 14 1.0k
Sylvain Parent Canada 11 635 0.9× 478 0.8× 170 0.6× 206 0.9× 175 0.9× 20 817
Shin‐Ichi Yamamoto Japan 14 623 0.9× 336 0.6× 171 0.6× 253 1.1× 178 0.9× 34 848
Khosro Sagheb‐Talebi Iran 14 493 0.7× 338 0.6× 288 1.1× 309 1.4× 194 1.0× 59 896
Martín A. Spetich United States 20 715 1.0× 747 1.3× 396 1.5× 311 1.4× 156 0.8× 68 1.2k
Albert Reif Germany 17 467 0.6× 413 0.7× 186 0.7× 227 1.0× 218 1.1× 66 888
Bogdan Brzeziecki Poland 15 713 1.0× 490 0.9× 264 1.0× 320 1.5× 355 1.8× 56 1.1k
Gary Kerr United Kingdom 18 867 1.2× 620 1.1× 235 0.9× 398 1.8× 199 1.0× 49 1.2k
T. Curt France 21 706 1.0× 554 1.0× 162 0.6× 143 0.7× 258 1.3× 34 1.0k
Brian L. Brookshire United States 7 442 0.6× 457 0.8× 293 1.1× 192 0.9× 104 0.5× 9 885

Countries citing papers authored by T.A. Spies

Since Specialization
Citations

This map shows the geographic impact of T.A. Spies'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 T.A. Spies with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T.A. Spies more than expected).

Fields of papers citing papers by T.A. Spies

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by T.A. Spies. 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 T.A. Spies. The network helps show where T.A. Spies may publish in the future.

Co-authorship network of co-authors of T.A. Spies

This figure shows the co-authorship network connecting the top 25 collaborators of T.A. Spies. A scholar is included among the top collaborators of T.A. Spies 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 T.A. Spies. T.A. Spies is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

10 of 10 papers shown
1.
Merschel, Andrew G., Meg A. Krawchuk, James D. Johnston, & T.A. Spies. (2024). Historical pyrodiversity in Douglas-fir forests of the southern Cascades of Oregon, USA. Forest Ecology and Management. 572. 122306–122306. 4 indexed citations
2.
Merschel, Andrew G., et al.. (2019). Conserving Dry Old-Growth Forest in Central Oregon, USA. Journal of Forestry. 117(2). 128–135. 9 indexed citations
3.
Thompson, J. P. & T.A. Spies. (2009). Factors Associated With Crown Damage Following Recurring Mixed-Severity Wildfires and Post-Fire Management. Digital Commons - USU (Utah State University). 4 indexed citations
4.
Haynes, R. J., et al.. (2001). Preface. Forest Ecology and Management. 153(1-3). 1–1. 1 indexed citations
5.
Lefsky, M. A., Warren B. Cohen, Steven A. Acker, et al.. (1998). Lidar remote sensing of forest canopy structure and related biophysical parameters at H.J. Andrews Experimental Forest, Oregon, USA. 21 indexed citations
6.
Easter, Mark & T.A. Spies. (1994). Using hemispherical photography for estimating photosynthetic photon flux density under canopies and in gaps in Douglas-fir forests of the Pacific Northwest. Canadian Journal of Forest Research. 24(10). 2050–2058. 79 indexed citations
7.
Franklin, Jerry F. & T.A. Spies. (1991). Ecological definitions of Old-Growth Douglas-fir forests. 59 indexed citations
8.
Denslow, Julie S. & T.A. Spies. (1990). Canopy gaps in forest ecosystems. A symposium held in Columbus, Ohio, August 1987.. Canadian Journal of Forest Research. 20(5). 617–667. 1 indexed citations
9.
Canham, Charles D., Julie S. Denslow, William Platt, et al.. (1990). Light regimes beneath closed canopies and tree-fall gaps in temperate and tropical forests. Canadian Journal of Forest Research. 20(5). 620–631. 815 indexed citations breakdown →
10.
Bury, R. Bruce, et al.. (1988). Douglas-fir forests in the Cascade Mountains of Oregon and Washington: is the abundance of small mammals related to stand age and moisture?. 1988(166). 340–352. 13 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 Paula Bartemucci Breakdown of academic impact, for papers by Sylvain Parent Breakdown of academic impact, for papers by Shin‐Ichi Yamamoto Breakdown of academic impact, for papers by Khosro Sagheb‐Talebi Breakdown of academic impact, for papers by Martín A. Spetich Breakdown of academic impact, for papers by Albert Reif Breakdown of academic impact, for papers by Bogdan Brzeziecki Breakdown of academic impact, for papers by Gary Kerr Breakdown of academic impact, for papers by T. Curt Breakdown of academic impact, for papers by Brian L. Brookshire
Rankless by CCL
2026