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Daniel Slone

Research Ecologist

Contact Info

Short Biography

Daniel Slone is a research ecologist at the USGS Southeast Ecological Science Center.  He works with population and habitat data analyses and simulation models, generally with west Indian manatees, Florida crocodillians, and seagrasses. 


  • Ph.D., Entomology: Oregon State University: June 1999
  • Ph.D. Dissertation: Spatial Patterns of Predaceous and Phytophagous Apple Mites (Acari: Eriophyidae, Phytoseiidae, Stigmaeidae, Tetranychidae): Intra- and Interspecific Relationships.
  • B.A., Biology (with honors), B.A., Environmental Studies: University of California, Santa Cruz: June 1992

 Research and Teaching 

  • Research Ecologist, USGS Florida Integrated Science Center, Sirenia Project, Gainesville, FL: August 2004 – Present.
  • Research Ecologist, USDA Forest Service Southern Research Station, Forest insect Research, Pineville, LA: June 2001 – August 2004.
  • Postdoctoral Research Associate, Entomology/Nematology Dept., University of Florida: April 1999 – May 2001.
  • Substitute instructor for Insect Population Biology, Ent./Nem. Dept., University of Florida: March 2000.
  • Graduate Research Assistant, Entomology Department, Oregon State University: June 1995 - April 1999.
  • Instructor for Map-Making and Orienteering workshop, H.J. Andrews Experimental Forest: June 1997.
  • Teaching Assistant for Integrated Pest Management, Entomology Dept., Oregon State U.: Sept-Dec 1997.
  • Assistant instructor, computer and statistical techniques for Computers and I.P.M., Entomology Department, Oregon State University: Jan-Mar 1998.
  • Committee member for Ph.D Student, ECOSUR.  2007 – Present.
  • Committee member and thesis project advisor (not major advisor) for Ph.D Student, University of Florida Entomology Dept.  2005 – Present.
  • Provided graduate research assistantship, served on committee, and advised on thesis project for MS Student, University of Florida Entomology Dept.  2001 – 2005.
  • Provided graduate assistantship to MS student, University of Florida Fish and Wildlife Co-op unit, 2002 – 2003.



Slone, D.H., J.P. Reid, W.J. Kenworthy, G. diCarlo, and S.M. Butler. 2012. Manatees Mapping Seagrass. Seagrass Watch 46: 8-11. [Link]

Slone, D.H. 2011. Increasing accuracy of dispersal kernels in grid-based population models. Ecological Modeling. 222(3): 573-579. DOI:10.1016/j.ecolmodel.2010.11.023 [Link]

Slone, D.H. and S.V. Gruner. 2011. To the Editor. Journal of Medical Entomology 48(2):127-128 [Link]

Green, Timothy W.; Slone, Daniel H.; Swain, Eric D.; Cherkiss, Michael S.; Lohmann, Melinda; Mazzotti, Frank J.; Rice, Kenneth G., 2010. Spatial and stage-structured population model of the American crocodile for comparison of comprehensive Everglades Restoration Plan (CERP) alternatives. U.S. Geological Survey Open-File Report 2010-1284, vi, 38 p.; Appendices [Link]

Stith, B.M., J. P. Reid, C. A. Langtimm, E. D. Swain, T. J. Doyle, D. H. Slone, J. D. Decker and L. E. Soderqvist. 2010. Temperature Inverted Haloclines Provide Winter Warm-Water Refugia for Manatees in Southwest Florida. Estuaries and Coasts. DOI: 10.1007/s12237-010-9286-1. [Link]

Schofield, P.J.; W.F. Loftus; R.M. Kobza; M.I. Cook, and D.H. Slone. 2010 Tolerance of nonindigenous cichlid fishes (Cichlasoma urophthalmus, Hemichromis letourneuxi) to low temperature: laboratory and field experiments in south Florida. Biological Invasions. DOI: 10.1007/s10530-009-9654-6. [Link]

Langtimm, Catherine A.; Swain, Eric D.; Stith, Bradley M.; Reid, James P.; Slone, Daniel H.; Decker, Jeremy; Butler, Susan M.; Doyle, Terry; Snow, R. W. "Skip", 2009. Integrated Science: Florida Manatees and Everglades Hydrology. U.S. Geological Survey Fact Sheet 2009-3002, 4 p. [Link]

Stith, B.M., D.H. Slone, and J.P. Reid. 2006. Review and Synthesis of Manatee Data in Everglades National Park. USGS Administrative Report. 126pp [Link]

Slone, D.H., J.P. Reid, B.M. Stith, S.M. Butler, T.W. Green, E. Patino, and L. Soderqvist.  2009. Monitoring and Assessing Effects of the Picayune Strand Restoration Project on the Florida Manatee: Hydrological Monitoring and Analysis: 2009 Annual Progress Update.  (Open File Report in internal review)

Langtimm, Catherine A.; Swain, Eric D.; Stith, Bradley M.; Reid, James P.; Slone, Daniel H.; Decker, Jeremy; Butler, Susan M.; Doyle, Terry; Snow, R. W. "Skip", 2009. Integrated Science: Florida Manatees and Everglades Hydrology: U.S. Geological Survey Fact Sheet 2009-3002, 4 p.

Slone, D.H., J.P. Reid, and B.M. Stith. 2008. Manatee Distribution, Habitat Use and Mortality Patterns in and around Chokoloskee Bay in support of the Chokoloskee Area of Inadequate Protection Mitigation.  USGS Open File Report.  USGS Florida Integrated Science Center, Gainesville, FL.  15 pp.

Slone, D.H. and B.T. Sullivan.  2007. An automated, unbiased approach to detecting signals in electroantennogram data. Journal of Chemical Ecology 33(9): 1748-1762.

Slone, D.H.  2007. Spreadsheet for automatically detecting signals in electroantennogram data:  Springer Netherlands.

Friedenberg, N.A., B.M. Whited, D.H. Slone, S.J. Martinson, and M.P. Ayres.  2007. Differential impacts of the southern pine beetle, Dendroctonus frontalis, on Pinus palustris and Pinus taeda.  Canadian Journal of Forest Research 37(8):1427-1437.

Slone, D.H. and S.V. Gruner. 2007. Thermoregulation in Larval Aggregations of Carrion-Feeding Blow Flies (Diptera: Calliphoridae). Journal of Medical Entomology 44(3):516-523.

Gruner, S.V., D.H. Slone, and J.L. Capinera. 2007. Forensically Important Calliphoridae (Diptera) Associated with Pig Carrion in Rural North-Central Florida.  Journal of Medical Entomology 44(3):509-515.

Langtimm, C. A., E. Swain, B. M. Stith, J. P. Reid, D. Slone. 2006.  U.S. Geological Survey, Greater Everglades Priority Ecosystems Science (GEPES) and ENP’s CESI.  Fiscal Year 2006 Summary Report: Effects of hydrological restoration on manatees: Integrating data and models for the Ten Thousand Islands and Everglades

Slone, D.H., J.P. Reid, R.K. Bonde, S.M. Butler, and B.M. Stith. 2006.  Summary Of West Indian Manatee (Trichechus Manatus) Tracking By USGS-FISC Sirenia Project In Puerto Rico, with Additional Information on Aerial Surveys, Carcass Recovery, and Genetics Research.  Report to USFWS Jacksonville, FL, and Puerto Rico for the USFWS 5-year review of the Antillean Manatee.

Ylioja, T., D.H. Slone, and M.P. Ayres. 2005. Mismatch between Herbivore Behavior and Demographics Contributes to Scale-Dependence of Host Susceptibility in Two Pine Species. Forest Science 51(6) 522-531.

Slone, D.H. and J.C. Allen. 2005. Persistence of multiple, identical parasitoid species in a single-host, coupled-map lattice simulation. Web Ecology 5:6-13.

Slone, D.H., S.V. Gruner, and J.C. Allen. 2004. Assessing error in PMI prediction using a forensic entomological computer model.  National Institute of Justice #2000rbcx0002, Final report

Pratt, P.D., D.H. Slone, M.B. Rayachhetry, T.K. Van, and T.D. Center. 2003. Geographic distribution and dispersal rate of Oxyops vitiosa, a biological control agent of the invasive weed Melaleuca quinquenervia in South Florida. Environmental Entomology 32(2): 397-406.

Slone, D.H., K.G. Rice, and J.C. Allen. 2003. Model evaluates influence of Everglades restoration on alligator population (Florida). Ecological Restoration 21(2): 141-142.

Slone, D.H., K.G. Rice and J. C. Allen. 2003. Description of the American Alligator ATLSS module. Report to USGS-BRD

Pratt, P.D., D.H. Slone and A.P. Ferriter.  2003. Quantifying the adventive geographic distribution and dispersal rate of Oxyops vitiosa, a biological control agent of the invasive tree Melaleuca quinquenervia. Detecting Invasive Exotic Plants (Workshop Proceedings)

Slone, D.H. and K.G. Rice. 2002. ATLSS American alligator population model: a simulation model for Everglades restoration. USGS Software Program. Fort Lauderdale, Florida.

Allen, J.C., C.C. Brewster and D.H. Slone. 2001. Spatially explicit ecological models: a spatial convolution approach. Chaos, Solitons, and Fractals. 12(2): 333-347 (Special Issue on Ecology).

Slone, D.H. and B.A. Croft. 2001. Species association among predaceous and phytophagous apple mites (Acari: Eriophyidae, Phytoseiidae, Stigmaeidae, Tetranychidae).  Experimental and Applied Acarology. 25 (2): 109-126.

Slone, D.H. and B.A. Croft. 2000. Changes in intraspecific aggregation and the coexistence of predaceous apple mites. Oikos. 91(1): 153-161.

Strong, W.B., D.H. Slone, and B.A. Croft. 1999. Hops as a metapopulation landscape for tetranychid-phytoseiid interactions: perspectives of intra- and interplant dispersal. Experimental and Applied Acarology. 23(7): 581-597.

Rice, K.G., D.H. Slone, and H.F. Percival. 1999-2002. Parameter Estimation and Population-Based Simulation Modeling of American Alligator Populations in Support of ATLSS. Interim/Annual Reports. USGS-BRD. Gainesville, Fl.

Croft, B.A. and D.H. Slone. 1998. Perturbation of regulated apple mites: immigration and pesticide effects on outbreaks of Panonychus ulmi and associated mites (Acari: Tetranychidae, Eriophyidae, Phytoseiidae and Stigmaeidae.  Environmental Entomology. 27(6): 1548-1556.

Slone, D.H. and B.A. Croft. 1998. Detecting differences in arthropod aggregation by comparing the proportion of occupied sample units. Entomologia Experimentalis et Applicata. 87(1): 59-66.

Slone, D.H. and B.A. Croft. 1998. Spatial aggregation of apple mite species (Acari: Phytoseiidae, Stigmaeidae, Tetranychidae) as measured by a binomial model: effects of life stage, reproduction, and competition. Environmental Entomology. 27(4): 918-925.

Croft, B.A. and D.H. Slone. 1997. Equilibrium densities of European red mite (Acari: Tetranychidae) after exposure to three levels of predaceous mite diversity on apple. Environmental Entomology. 26(2):391-399.

Strong, W.B., B.A. Croft, and D.H. Slone. 1997. Spatial aggregation and refugia of the mites Tetranychus urticae and Neoseiulus fallacis (Acari: Tetranychidae, Phytoseiidae) on hop. Environmental Entomology. 26(4): 859-865.


My Science Topics

Science Topic
Ecology and Environmentaquatic ecosystems
Ecology and Environmentbenthic ecosystems
Ecology and Environmentecological processes
Ecology and Environmentestuarine ecosystems
Ecology and Environmentfreshwater ecosystems
Ecology and Environmenthabitats

My USGS Science Strategy Areas

Understanding Ecosystems & Predicting Ecosystems Change

Climate Variability & Change

Research Interests

Image of Current Focus for Research Interests

Research Areas

  • Analysis and Spatial Modeling of Habitat Resources
  • Spatial Population Modeling
  • Analysis of Movement and Dispersal
  • Climate Change and Sea Level Rise
  • Bridging Teoretical and Applied Ecology

Systems and Organisms

  • West Indian Manatee (Trichechus manatus)
  • American Alligator (Alligator mississippiensis)
  • American crocodile (Crocodylus acutus)
  • Greater Everglades Restoration
  • Florida Seagrass
  • Florida Springs
  • Forensic Flies (Calliphoridae)

Spatial Modeling

Image of Spatial Modeling

Contact Information

Daniel Slone
7920 NW 71St Street
Gainesville, FL 32653
352-378-4956 - Fax
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