Match tier
Confirmed
Presence
Current · Arkansas
Last published
2026
Sources
OpenAlex · ORCID
Refreshed
2026-10-06
F
Frederick M. Stephen
Affiliation confirmed via AI analysis of OpenAlex, ORCID, and web sources.
University Professor
Also affiliated: US Forest Service (1981); University of California, Berkeley (1974–1976)
27 h-index
128 pubs
2,393 cited
Research Areas
Biomedical Subjects
Biography and Research Information
OverviewAI-generated summary
Frederick M. Stephen's research primarily focuses on insect ecology and forest health, with a particular emphasis on bark beetles and their interactions with trees and associated fungi. His work has investigated the arrival sequences of arthropod complexes following bark beetle attacks in pine species and the effects of specific fungi on the reproduction of the Southern Pine Beetle (*Dendroctonus frontalis*). Stephen has also studied the role of facultative intraguild predation among different beetle larvae in forest ecosystems.
His publications address broader patterns in forest decline, including the impact of emergent insects, pathogens, and drought on oak decline in North America and Europe. Stephen has also examined the phenology, mortality, and predator satiation associated with periodical cicada emergences. His research in the Ozark Mountains of Arkansas has documented the Red Oak Borer (*Enaphalodes rufulus*) as a significant forest disturbance agent. Additionally, his work has explored how environmental conditions and ontogeny modify loblolly pine responses to water deficits and bark beetle attacks, and he has investigated variations in female Southern Pine Beetle size and lipid content in relation to fungal associates.
Stephen has an h-index of 24, with 1,808 total citations across 88 publications. He has served as PI on four federal grants from the National Science Foundation (NSF), totaling $193,444, primarily supporting travel for geosciences conferences and technical meetings.
Metrics
- h-index: 27
- Publications: 128
- Citations: 2,393
Positions
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University Professor publications 1976–2026University of Arkansas at Fayetteville Institution web page
Selected Publications
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What is an associate? A systematic review of predators, parasitoids, competitors, symbionts, and hangers-on in the southern pine beetle community (2026)
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Sirex nigricornis (Hymenoptera: Siricidae) Oviposition Preference and Development in Relation to Host Age, and a Novel Live-Trapping System for Wood-Borers (2025)
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Southern pine beetle (Coleoptera: Curculionidae) and its associated insect community: similarities and key differences between northeastern and southeastern pine forests (2023)
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Insect Ecology (2023)
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Association of the native parasitic nematode <i>Deladenus proximus</i> with individuals and populations of the native woodwasp <i>Sirex nigricornis</i> (2022)
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Sirex nigricornis (Hymenoptera: Siricidae) larval development correlated with tree characteristics and ophiostomoid fungal infection (2021)
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Spatial patterns of within-tree<i>Enaphalodes rufulus</i>(Coleoptera: Cerambycidae) attacks during outbreak conditions in the Ozark National Forest in Arkansas, United States of America (2019)
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Monochamus species from different continents can be effectively detected with the same trapping protocol (2018)
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Variation in Sterilization by<i>Deladenus proximus</i>on the Native Woodwasp,<i>Sirex nigricornis</i>, in Arkansas (2017)
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Molecular identification of Deladenus proximus Bedding, 1974 (Tylenchida: Neotylenchidae), a parasite of Sirex nigricornis (Hymenoptera: Siricidae) (2016)
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Interactions Among Latitude, Nematode Parasitization, and Female<i>Sirex nigricornis</i>(Hymenoptera: Siricidae) Fitness (2016)
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Emergence of adult female <i>Sirex nigricornis</i> F. and <i>Sirex noctilio</i> F. (Hymenoptera: Siricidae) coincides with a decrease in daily minimum and maximum temperature (2016)
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Tree-ring δ13C and δ18O, leaf δ13C and wood and leaf N status demonstrate tree growth strategies and predict susceptibility to disturbance (2016)
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Emergent insects, pathogens and drought shape changing patterns in oak decline in North America and Europe (2015)
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Nonlinear tree growth dynamics predict resilience to disturbance (2015)
Federal Grants 4 $193,444 total
NSF
PI
Sep 2023 - Aug 2026
NSF
PI
Sep 2023 - Apr 2025
NSF
PI
Sep 2021 - Aug 2023
Collaboration Network
Top Collaborators
Laurel J. Haavik
The Ohio State University (US)
14 shared publications
- Emergent insects, pathogens and drought shape changing patterns in oak decline in North America and Europe
- Dendrochronological parameters of northern red oak (Quercus rubra L. (Fagaceae)) infested with red oak borer (Enaphalodes rufulus (Haldeman) (Coleoptera: Cerambycidae))
- Temporal aspects ofQuercus rubradecline and relationship to climate in the Ozark and Ouachita Mountains, Arkansas
- Oak decline and red oak borer outbreak: impact in upland oak-hickory forests of Arkansas, USA
- Laboratory and field bioassays on the effects of Beauveria bassiana Vuillemin (Hypocreales: Cordycipitaceae) on red oak borer, Enaphalodes rufulus (Haldeman) (Coleoptera: Cerambycidae)
Showing 5 of 14 shared publications
Larry D. Galligan
University of Arkansas at Fayetteville
11 shared publications
In database
- Oak decline and red oak borer outbreak: impact in upland oak-hickory forests of Arkansas, USA
- Rise and Fall of Red Oak Borer (Coleoptera: Cerambycidae) in the Ozark Mountains of Arkansas, USA
- Emergence of adult female Sirex nigricornis F. and Sirex noctilio F. (Hymenoptera: Siricidae) coincides with a decrease in daily minimum and maximum temperature
- Partial Life Tables From Three Generations of Enaphalodes rufulus (Coleoptera: Cerambycidae)
- Seasonal Phenology ofSirex nigricornis(Hymenoptera: Siricidae) in Arkansas with Implications for Management ofSirex noctilio
Showing 5 of 11 shared publications
Melissa K. Fierke
University of Arkansas at Fayetteville (US)
11 shared publications
- Development and Comparison of Intensive and Extensive Sampling Methods and Preliminary Within-Tree Population Estimates of Red Oak Borer (Coleoptera: Cerambycidae) in the Ozark Mountains of Arkansas
- Dendrochronological parameters of northern red oak (Quercus rubra L. (Fagaceae)) infested with red oak borer (Enaphalodes rufulus (Haldeman) (Coleoptera: Cerambycidae))
- A rapid estimation procedure for within-tree populations of red oak borer (Coleoptera: Cerambycidae)
- Site and stand variables influencing red oak borer, Enaphalodes rufulus (Coleoptera: Cerambycidae), population densities and tree mortality
- Identification and distribution of Armillaria species associated with an oak decline event in the Arkansas Ozarks
Showing 5 of 11 shared publications
Jessica A. Hartshorn
University of Arkansas at Fayetteville
8 shared publications
In database
- Emergence of adult female Sirex nigricornis F. and Sirex noctilio F. (Hymenoptera: Siricidae) coincides with a decrease in daily minimum and maximum temperature
- Molecular identification of Deladenus proximus Bedding, 1974 (Tylenchida: Neotylenchidae), a parasite of Sirex nigricornis (Hymenoptera: Siricidae)
- Seasonal Phenology ofSirex nigricornis(Hymenoptera: Siricidae) in Arkansas with Implications for Management ofSirex noctilio
- Interactions Among Latitude, Nematode Parasitization, and FemaleSirex nigricornis(Hymenoptera: Siricidae) Fitness
- Variation in Sterilization byDeladenus proximuson the Native Woodwasp,Sirex nigricornis, in Arkansas
Showing 5 of 8 shared publications
T. D. Paine
University of Arkansas at Fayetteville (US)
7 shared publications
- Seasonal patterns of host tree resistance to fungal associates of the southern pine beetle1,2
- Conceptual Model of Infestation Probability Based on Bark Beetle Abundance and Host Tree Susceptibility
- Fungi associated with the southern pine beetle: avoidance of induced defense response in loblolly pine
- Induced defenses of loblolly pine, Pinus taeda: potential impact on Dendroctonus frontalis within‐tree mortality
- Understanding bark beetle/host interactions: A means for improving decision strategies1
Showing 5 of 7 shared publications
Sherah L. VanLaerhoven
University of Arkansas at Fayetteville (US)
6 shared publications
- Height Distribution of Adult Parasitoids of the Southern Pine Beetle Complex
- Adult parasitoids of the southern pine beetle,Dendroctonus frontalisZimmermann (Coleoptera: Scolytidae), feed on artificial diet on pine boles, pine canopy foliage and understory hardwood foliage
- Incidence of honeydew in southern pine-hardwood forests: implications for adult parasitoids of the Southern Pine Beetle,Dendroctonus frontalis(Coleoptera: Scolytidae)
- Host species influences body size and egg load of the bark beetle parasitoid Roptrocerus xylophagorum (Hymenoptera: Pteromalidae)
- Baseline egg load of southern pine beetle parasitoid complex
Showing 5 of 6 shared publications
John J. Riggins
Mississippi State University (US)
5 shared publications
- Per-segment Aboveground Forest Biomass Estimation Using LIDAR-Derived Height Percentile Statistics
- Rise and Fall of Red Oak Borer (Coleoptera: Cerambycidae) in the Ozark Mountains of Arkansas, USA
- Emergence of adult female Sirex nigricornis F. and Sirex noctilio F. (Hymenoptera: Siricidae) coincides with a decrease in daily minimum and maximum temperature
- Molecular identification of Deladenus proximus Bedding, 1974 (Tylenchida: Neotylenchidae), a parasite of Sirex nigricornis (Hymenoptera: Siricidae)
- Interactions Among Latitude, Nematode Parasitization, and FemaleSirex nigricornis(Hymenoptera: Siricidae) Fitness
Kevin J. Dodds
US Forest Service (US)
5 shared publications
- Facultative Intraguild Predation by Larval Cerambycidae (Coleoptera) on Bark Beetle Larvae (Coleoptera: Scolytidae): Fig. 1.
- Partial age‐specific life tables for Monochamus titillator in Dendroctonus frontalis infested loblolly pines
- OVIPOSITION BIOLOGY OF ACANTHOCINUS NODOSUS (COLEOPTERA: CERAMBYCIDAE) IN PINUS TAEDA
- Arrival and Species Complex of Cerambycidae on Pines Attacked by Southern Pine Beetle
- Southern pine beetle (Coleoptera: Curculionidae) and its associated insect community: similarities and key differences between northeastern and southeastern pine forests
Vaughn B. Salisbury
University of Arkansas at Fayetteville (US)
4 shared publications
- Red Oak Borer, Enaphalodes rufulus (Coleoptera: Cerambycidae), in the Ozark Mountains of Arkansas, U.S.A.: An Unexpected and Remarkable Forest Disturbance
- Development and Comparison of Intensive and Extensive Sampling Methods and Preliminary Within-Tree Population Estimates of Red Oak Borer (Coleoptera: Cerambycidae) in the Ozark Mountains of Arkansas
- Dendrochronological parameters of northern red oak (Quercus rubra L. (Fagaceae)) infested with red oak borer (Enaphalodes rufulus (Haldeman) (Coleoptera: Cerambycidae))
- A rapid estimation procedure for within-tree populations of red oak borer (Coleoptera: Cerambycidae)
Sharon Billings
University of Kansas (US)
4 shared publications
- Emergent insects, pathogens and drought shape changing patterns in oak decline in North America and Europe
- Dendrochronological parameters of northern red oak (Quercus rubra L. (Fagaceae)) infested with red oak borer (Enaphalodes rufulus (Haldeman) (Coleoptera: Cerambycidae))
- Nonlinear tree growth dynamics predict resilience to disturbance
- Tree-ring δ13C and δ18O, leaf δ13C and wood and leaf N status demonstrate tree growth strategies and predict susceptibility to disturbance
Damon J. Crook
University of Arkansas at Fayetteville (US)
4 shared publications
- Development and Comparison of Intensive and Extensive Sampling Methods and Preliminary Within-Tree Population Estimates of Red Oak Borer (Coleoptera: Cerambycidae) in the Ozark Mountains of Arkansas
- A rapid estimation procedure for within-tree populations of red oak borer (Coleoptera: Cerambycidae)
- Optimization of Sampling Methods for Within-Tree Populations of Red Oak Borer, Enaphalodes rufulus (Haldeman) (Coleoptera: Cerambycidae)
- Partial Life Tables From Three Generations of Enaphalodes rufulus (Coleoptera: Cerambycidae)
Bryan R. Coppedge
University of Arkansas at Fayetteville (US)
3 shared publications
- VARIATION IN FEMALE SOUTHERN PINE BEETLE SIZE AND LIPID CONTENT IN RELATION TO FUNGAL ASSOCIATES
- Variation in Size and Lipid Content of Adult Southern Pine Beetles, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae) in Relation to Season
- Examination of Midgut Proteinases of the Adult Southern Pine Beetle (Coleoptera: Scolytidae)
Gary W. Felton
University of Arkansas at Fayetteville (US)
3 shared publications
- VARIATION IN FEMALE SOUTHERN PINE BEETLE SIZE AND LIPID CONTENT IN RELATION TO FUNGAL ASSOCIATES
- Variation in Size and Lipid Content of Adult Southern Pine Beetles, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae) in Relation to Season
- Examination of Midgut Proteinases of the Adult Southern Pine Beetle (Coleoptera: Scolytidae)
H.A. Taha
University of Arkansas at Fayetteville (US)
3 shared publications
- Conceptual Model of Infestation Probability Based on Bark Beetle Abundance and Host Tree Susceptibility
- Optimization of Sampling Effort for Within-tree Populations of Southern Pine Beetle and Its Natural Enemies 1 , 2
- Area-wide Estimation of Southern Pine Beetle Populations 1
M. Brent Kelley
University of Arkansas at Fayetteville (US)
3 shared publications
- Site and stand variables influencing red oak borer, Enaphalodes rufulus (Coleoptera: Cerambycidae), population densities and tree mortality
- Identification and distribution of Armillaria species associated with an oak decline event in the Arkansas Ozarks
- MOLECULAR DIAGNOSTICS OF ENAPHALODES RUFULUS (COLEOPTERA: CERAMBYCIDAE)
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