David R Smith, Ph.D.
Dave is a Research Statistician (Biology) at the Eastern Ecological Science Center in Kearneysville, WV.
Dave Smith graduated from Colorado State (MS in Fish and Wildlife Biology) and University of Georgia (MS in Statistics and PhD in Forest Resources). Currently, he is a biological statistician at the USGS Leetown Science Center where he focuses on applied quantitative ecology in support of natural resource management and environmental decision making.
His research activities mostly focus on the following topics:
- Adaptive sampling of rare and clustered populations
- Conservation and science of horseshoe crabs in North America and Asia
- Conservation of freshwater mussels
- Application of structured decision making and adaptive management to natural resource management
Science and Products
Filter Total Items: 114
Acoustic-tracking and radio-tracking of horseshoe crabs to assess spawning behavior and subtidal habitat use in delaware bay
This study used telemetry to determine spawning behavior and subtidal habitat use of horseshoe crabs Limulus polyphemus. We attached combined acoustic and radio transmitters to 12 gravid female horseshoe crabs at Ted Harvey Beach and 12 at North Bowers Beach (both on the western shore of Delaware Bay) over a 5-d period before peak spawning on the new moon. Horseshoe crabs were acoustically tracked
Authors
L. J. Brousseau, M. Sclafani, D. R. Smith, Daniel B. Carter
A guide to sampling freshwater mussel populations
No abstract available.
Authors
David L. Strayer, David R. Smith
Application of adaptive cluster sampling to low-density populations of freshwater mussels
Freshwater mussels appear to be promising candidates for adaptive cluster sampling because they are benthic macroinvertebrates that cluster spatially and are frequently found at low densities. We applied adaptive cluster sampling to estimate density of freshwater mussels at 24 sites along the Cacapon River, WV, where a preliminary timed search indicated that mussels were present at low density. Ad
Authors
D. R. Smith, R.F. Villella, D. P. Lemarie
Assessment of sampling methods to estimate horseshoe crab (Limulus polyphemus L.) egg density in Delaware Bay
[No abstract available]
Authors
P.S. Pooler, D. R. Smith, R.E. Loveland, M.L. Botton, S.F. Michels
Influence of eastern hemlock (Tsuga canadensis L.) on fish community structure and function in headwater streams of the Delaware River basin
Hemlock (Tsuga canadensis) forest of the eastern U.S. are in decline due to invasion by the exotic insect hemlock woolly adelgid (Adelges tsugae). Aquatic biodiversity in hemlock ecosystems has not been documented; thus the true impact of the infestation cannot be assessed. We compared ichthyofaunal assemblages and trophic structure of streams draining hemlock and hardwood forests by sampling firs
Authors
R. M. Ross, R. M. Bennett, C.D. Snyder, J.A. Young, D. R. Smith, D. P. Lemarie
Influence of eastern hemlock (Tsuga canadensis) forests on aquatic invertebrate assemblages in headwater streams
We conducted a comparative study in the Delaware Water Gap National Recreation Area to determine the potential long-term impacts of hemlock forest decline on stream benthic macroinvertebrate assemblages. Hemlock forests throughout eastern North America have been declining because of the hemlock woolly adelgid, an exotic insect pest. We found aquatic invertebrate community structure to be strongly
Authors
C.D. Snyder, J.A. Young, D. P. Lemarie, D. R. Smith
A terrain-based paired-site sampling design to assess biodiversity losses from eastern hemlock decline
Biodiversity surveys are often hampered by the inability to control extraneous sources of variability introduced into comparisons of populations across a heterogenous landscape. If not specifically accounted for a priori, this noise can weaken comparisons between sites, and can make it difficult to draw inferences about specific ecological processes. We developed a terrain-based, paired-site sampl
Authors
J.A. Young, D. R. Smith, C.D. Snyder, D. P. Lemarie
Horseshoe crab (Limulus polyphemus) reproductive activity on Delaware Bay beaches: Interactions with beach characteristics
We used results from a survey of horseshoe crab reproductive activity that was conducted in 1999 throughout Delaware Bay to examine the relationship between estimates of spawning females and egg deposition and analyze how that relationship varies with geography, time within a spawning season, beach morphology, and wave energy. We found that beach morphology and wave energy interacted with density
Authors
D. R. Smith, P.S. Pooler, R.E. Loveland, M.L. Botton, S.F. Michels, R.G. Weber, Daniel B. Carter
Spatial and temporal distribution of horseshoe crab (Limulus polyphemus) Spawning Delaware Bay: Implications for monitoring
Concern for the status of horseshoe crab (Limulus polyphemus) has increased as harvest for conch and eel bait has increased and spawning habitat has decreased. In early 1999 a workshop was held at the behest of the Atlantic States Marine Fisheries Commission to design a statistically valid survey of horseshoe crab spawning in Delaware Bay. The survey that resulted was a redesign of a volunteer-bas
Authors
D. R. Smith, P.S. Pooler, B.L. Swan, S.F. Michels, W.R. Hall, P.J. Himchak, M. J. Millard
Survey protocol for assessment of endangered freshwater mussels the Allegheny River, Pennsylvania
The United States Endangered Species Act (ESA) requires a biological assessment of any activity that is authorized, funded, or carried out by a federal agency and likely to affect a federally listed endangered species or its critical habitat. We developed a standardized survey protocol for biological assessments of the effects of bridge replacements on 2 federally listed endangered freshwater muss
Authors
D. R. Smith, R.F. Villella, D. P. Lemarie
Relationship of Eastern hemlock (Tsuga canadensis) to the ecology of small streams in Delaware Water Gap National Recreation Area
Hemlock ravines in Delaware Water Gap National
Recreation Area (DEWA) are highly valued because of their
distinctive aesthetic, recreational and ecological qualities.
We conducted a comparative study designed to determine
the potential long-term consequences to aquatic
communities of the suspected transition from
hemlock-dominated forests to mixed hardwood forests as a
result of hemlock woolly ade
Authors
David P. Lemarie, John A. Young, Craig D. Snyder, Robert M. Ross, David Smith, Randy M. Bennett
Bias survival estimates from tag-recovery models where catch-and-release is common, with an example from Atlantic striped bass (Morone saxatilis)
No abstract available.
Authors
D. R. Smith, K.P. Burnham, D.M. Kahn, X. He, C.J. Goshorn, K.A. Hattala, A.W. Kahnle
Science and Products
Filter Total Items: 114
Acoustic-tracking and radio-tracking of horseshoe crabs to assess spawning behavior and subtidal habitat use in delaware bay
This study used telemetry to determine spawning behavior and subtidal habitat use of horseshoe crabs Limulus polyphemus. We attached combined acoustic and radio transmitters to 12 gravid female horseshoe crabs at Ted Harvey Beach and 12 at North Bowers Beach (both on the western shore of Delaware Bay) over a 5-d period before peak spawning on the new moon. Horseshoe crabs were acoustically tracked
Authors
L. J. Brousseau, M. Sclafani, D. R. Smith, Daniel B. Carter
A guide to sampling freshwater mussel populations
No abstract available.
Authors
David L. Strayer, David R. Smith
Application of adaptive cluster sampling to low-density populations of freshwater mussels
Freshwater mussels appear to be promising candidates for adaptive cluster sampling because they are benthic macroinvertebrates that cluster spatially and are frequently found at low densities. We applied adaptive cluster sampling to estimate density of freshwater mussels at 24 sites along the Cacapon River, WV, where a preliminary timed search indicated that mussels were present at low density. Ad
Authors
D. R. Smith, R.F. Villella, D. P. Lemarie
Assessment of sampling methods to estimate horseshoe crab (Limulus polyphemus L.) egg density in Delaware Bay
[No abstract available]
Authors
P.S. Pooler, D. R. Smith, R.E. Loveland, M.L. Botton, S.F. Michels
Influence of eastern hemlock (Tsuga canadensis L.) on fish community structure and function in headwater streams of the Delaware River basin
Hemlock (Tsuga canadensis) forest of the eastern U.S. are in decline due to invasion by the exotic insect hemlock woolly adelgid (Adelges tsugae). Aquatic biodiversity in hemlock ecosystems has not been documented; thus the true impact of the infestation cannot be assessed. We compared ichthyofaunal assemblages and trophic structure of streams draining hemlock and hardwood forests by sampling firs
Authors
R. M. Ross, R. M. Bennett, C.D. Snyder, J.A. Young, D. R. Smith, D. P. Lemarie
Influence of eastern hemlock (Tsuga canadensis) forests on aquatic invertebrate assemblages in headwater streams
We conducted a comparative study in the Delaware Water Gap National Recreation Area to determine the potential long-term impacts of hemlock forest decline on stream benthic macroinvertebrate assemblages. Hemlock forests throughout eastern North America have been declining because of the hemlock woolly adelgid, an exotic insect pest. We found aquatic invertebrate community structure to be strongly
Authors
C.D. Snyder, J.A. Young, D. P. Lemarie, D. R. Smith
A terrain-based paired-site sampling design to assess biodiversity losses from eastern hemlock decline
Biodiversity surveys are often hampered by the inability to control extraneous sources of variability introduced into comparisons of populations across a heterogenous landscape. If not specifically accounted for a priori, this noise can weaken comparisons between sites, and can make it difficult to draw inferences about specific ecological processes. We developed a terrain-based, paired-site sampl
Authors
J.A. Young, D. R. Smith, C.D. Snyder, D. P. Lemarie
Horseshoe crab (Limulus polyphemus) reproductive activity on Delaware Bay beaches: Interactions with beach characteristics
We used results from a survey of horseshoe crab reproductive activity that was conducted in 1999 throughout Delaware Bay to examine the relationship between estimates of spawning females and egg deposition and analyze how that relationship varies with geography, time within a spawning season, beach morphology, and wave energy. We found that beach morphology and wave energy interacted with density
Authors
D. R. Smith, P.S. Pooler, R.E. Loveland, M.L. Botton, S.F. Michels, R.G. Weber, Daniel B. Carter
Spatial and temporal distribution of horseshoe crab (Limulus polyphemus) Spawning Delaware Bay: Implications for monitoring
Concern for the status of horseshoe crab (Limulus polyphemus) has increased as harvest for conch and eel bait has increased and spawning habitat has decreased. In early 1999 a workshop was held at the behest of the Atlantic States Marine Fisheries Commission to design a statistically valid survey of horseshoe crab spawning in Delaware Bay. The survey that resulted was a redesign of a volunteer-bas
Authors
D. R. Smith, P.S. Pooler, B.L. Swan, S.F. Michels, W.R. Hall, P.J. Himchak, M. J. Millard
Survey protocol for assessment of endangered freshwater mussels the Allegheny River, Pennsylvania
The United States Endangered Species Act (ESA) requires a biological assessment of any activity that is authorized, funded, or carried out by a federal agency and likely to affect a federally listed endangered species or its critical habitat. We developed a standardized survey protocol for biological assessments of the effects of bridge replacements on 2 federally listed endangered freshwater muss
Authors
D. R. Smith, R.F. Villella, D. P. Lemarie
Relationship of Eastern hemlock (Tsuga canadensis) to the ecology of small streams in Delaware Water Gap National Recreation Area
Hemlock ravines in Delaware Water Gap National
Recreation Area (DEWA) are highly valued because of their
distinctive aesthetic, recreational and ecological qualities.
We conducted a comparative study designed to determine
the potential long-term consequences to aquatic
communities of the suspected transition from
hemlock-dominated forests to mixed hardwood forests as a
result of hemlock woolly ade
Authors
David P. Lemarie, John A. Young, Craig D. Snyder, Robert M. Ross, David Smith, Randy M. Bennett
Bias survival estimates from tag-recovery models where catch-and-release is common, with an example from Atlantic striped bass (Morone saxatilis)
No abstract available.
Authors
D. R. Smith, K.P. Burnham, D.M. Kahn, X. He, C.J. Goshorn, K.A. Hattala, A.W. Kahnle