Diane Larson, PhD (Former Employee)
Science and Products
Filter Total Items: 70
Short-term disruption of a leafy spurge (Euphorbia esula) biocontrol program following herbicide application
Integrated pest management (IPM) for invasive plant species is being advocated by researchers and implemented by land managers, but few studies have evaluated the success of IPM programs in natural areas. We assessed the relative effects of components of an IPM program for leafy spurge (Euphorbia esula), an invasive plant, at Theodore Roosevelt National Park, North Dakota. Effects of herbicides on
Authors
D. L. Larson, J.B. Grace, P.A. Rabie, P. Andersen
Canada thistle biological control agents on two South Dakota wildlife refuges
We monitored populations of Canada thistle biocontrol agents Cassida rubiginosa, Ceutorhynchus litura, Larinus (= Hadroplantus) planus, Urophora cardui, Orellia (= Terellia) ruficauda, and Rhinocyllus conicus on Canada thistle (Cirsium arvense) at two national wildlife refuges in South Dakota from 1999 through 2003. C. litura, U. cardui, O. ruficauda, and R. conicus were present on both refuges. A
Authors
C.C. Reed, D. L. Larson, J.L. Larson
Insect visitation and pollen deposition in an invaded prairie plant community
Invasive plants with large flowering displays have been shown to compete with native plants for pollinator services, often to the detriment of native plant fitness. In this study, we compare the pollinator communities and pollen deposited on stigmas of native plant species within and away from stands of the invasive alien plant, leafy spurge (Euphorbia esula) at a large natural area in North Dakot
Authors
D. L. Larson, R.A. Royer, M.R. Royer
Insect visitation and pollen deposition in an invaded prairie plant community
No abstract available.
Authors
D. L. Larson, R.A. Royer, M.R. Royer
Alternative management practices of Cirsium arvense: final report
No abstract available.
Authors
D. L. Larson, J.L. Larson, C. Reed
2004 inventory of the distribution and abundance of non-indigenous plants and rare plants at two riverine national parks in the Great Lakes Network -- final report
No abstract available.
Authors
J. Larson, D. L. Larson
Role of soil transformation in invasion of mixed-grass prairie
No abstract available.
Authors
N.R. Jordan, D. L. Larson, S.C. Huerd
Temporal dynamics of leafy spurge (Euphorbia esula) and two species of flea beetles (Aphthona spp.) used as biological control agents
The goal of this study was to evaluate the biological control program of leafy spurge (Euphorbia esula) in a large natural area, Theodore Roosevelt National Park, western North Dakota, USA. Aphthona lacertosa and Aphthona nigriscutis have been released at more than 1800 points in the 18,600-ha South Unit of the park beginning in 1989; most releases have occurred since 1994. We established permanen
Authors
D. L. Larson, J.B. Grace
Effects of ungulates and prairie dogs on seed banks and vegetation in a North American mixed-grass prairie
The relationship between vegetation cover and soil seed banks was studied in five different ungulate herbivore-prairie dog treatment combinations at three northern mixed-grass prairie sites in Badlands National Park, South Dakota. There were distinct differences in both the seed bank composition and the aboveground vegetation between the off-prairie dog colony treatments and the on-colony treatmen
Authors
J. T. Fahnestock, D. L. Larson, G. E. Plumb, J.K. Detling
Native weeds and exotic plants: relationships to disturbance in mixed grass prairie
The paper compares distributions of native weedy species and exotic species with respect to three kinds of disturbance, roads, trails, and prairie dog towns. Data were collected at the north and south units of Theodore Roosevelt National Park and at Wind Cave National Park. The paper concludes that many exotic species differ substantially from native weeds in their exploitation of disturbance. It
Authors
D. L. Larson
Native weeds and exotic plants: Relationships to disturbance in mixed-grass prairie
Disturbance frequently is implicated in the spread of invasive exotic plants. Disturbances may be broadly categorized as endogenous (e.g., digging by fossorial animals) or exogenous (e.g., construction and maintenance of roads and trails), just as weedy species may be native or exotic in origin. The objective of this study was to characterize and compare exotic and native weedy plant occurrence in
Authors
D. L. Larson
Alien plant invasion in mixed-grass prairie: Effects of vegetation type and anthropogenic disturbance
The ability of alien plant species to invade a region depends not only on attributes of the plant, but on characteristics of the habitat being invaded. Here, we examine characteristics that may influence the success of alien plant invasion in mixed-grass prairie at Theodore Roosevelt National Park, in western North Dakota, USA. The park consists of two geographically separate units with similar ve
Authors
D. L. Larson, P.J. Anderson, W. Newton
Science and Products
Filter Total Items: 70
Short-term disruption of a leafy spurge (Euphorbia esula) biocontrol program following herbicide application
Integrated pest management (IPM) for invasive plant species is being advocated by researchers and implemented by land managers, but few studies have evaluated the success of IPM programs in natural areas. We assessed the relative effects of components of an IPM program for leafy spurge (Euphorbia esula), an invasive plant, at Theodore Roosevelt National Park, North Dakota. Effects of herbicides on
Authors
D. L. Larson, J.B. Grace, P.A. Rabie, P. Andersen
Canada thistle biological control agents on two South Dakota wildlife refuges
We monitored populations of Canada thistle biocontrol agents Cassida rubiginosa, Ceutorhynchus litura, Larinus (= Hadroplantus) planus, Urophora cardui, Orellia (= Terellia) ruficauda, and Rhinocyllus conicus on Canada thistle (Cirsium arvense) at two national wildlife refuges in South Dakota from 1999 through 2003. C. litura, U. cardui, O. ruficauda, and R. conicus were present on both refuges. A
Authors
C.C. Reed, D. L. Larson, J.L. Larson
Insect visitation and pollen deposition in an invaded prairie plant community
Invasive plants with large flowering displays have been shown to compete with native plants for pollinator services, often to the detriment of native plant fitness. In this study, we compare the pollinator communities and pollen deposited on stigmas of native plant species within and away from stands of the invasive alien plant, leafy spurge (Euphorbia esula) at a large natural area in North Dakot
Authors
D. L. Larson, R.A. Royer, M.R. Royer
Insect visitation and pollen deposition in an invaded prairie plant community
No abstract available.
Authors
D. L. Larson, R.A. Royer, M.R. Royer
Alternative management practices of Cirsium arvense: final report
No abstract available.
Authors
D. L. Larson, J.L. Larson, C. Reed
2004 inventory of the distribution and abundance of non-indigenous plants and rare plants at two riverine national parks in the Great Lakes Network -- final report
No abstract available.
Authors
J. Larson, D. L. Larson
Role of soil transformation in invasion of mixed-grass prairie
No abstract available.
Authors
N.R. Jordan, D. L. Larson, S.C. Huerd
Temporal dynamics of leafy spurge (Euphorbia esula) and two species of flea beetles (Aphthona spp.) used as biological control agents
The goal of this study was to evaluate the biological control program of leafy spurge (Euphorbia esula) in a large natural area, Theodore Roosevelt National Park, western North Dakota, USA. Aphthona lacertosa and Aphthona nigriscutis have been released at more than 1800 points in the 18,600-ha South Unit of the park beginning in 1989; most releases have occurred since 1994. We established permanen
Authors
D. L. Larson, J.B. Grace
Effects of ungulates and prairie dogs on seed banks and vegetation in a North American mixed-grass prairie
The relationship between vegetation cover and soil seed banks was studied in five different ungulate herbivore-prairie dog treatment combinations at three northern mixed-grass prairie sites in Badlands National Park, South Dakota. There were distinct differences in both the seed bank composition and the aboveground vegetation between the off-prairie dog colony treatments and the on-colony treatmen
Authors
J. T. Fahnestock, D. L. Larson, G. E. Plumb, J.K. Detling
Native weeds and exotic plants: relationships to disturbance in mixed grass prairie
The paper compares distributions of native weedy species and exotic species with respect to three kinds of disturbance, roads, trails, and prairie dog towns. Data were collected at the north and south units of Theodore Roosevelt National Park and at Wind Cave National Park. The paper concludes that many exotic species differ substantially from native weeds in their exploitation of disturbance. It
Authors
D. L. Larson
Native weeds and exotic plants: Relationships to disturbance in mixed-grass prairie
Disturbance frequently is implicated in the spread of invasive exotic plants. Disturbances may be broadly categorized as endogenous (e.g., digging by fossorial animals) or exogenous (e.g., construction and maintenance of roads and trails), just as weedy species may be native or exotic in origin. The objective of this study was to characterize and compare exotic and native weedy plant occurrence in
Authors
D. L. Larson
Alien plant invasion in mixed-grass prairie: Effects of vegetation type and anthropogenic disturbance
The ability of alien plant species to invade a region depends not only on attributes of the plant, but on characteristics of the habitat being invaded. Here, we examine characteristics that may influence the success of alien plant invasion in mixed-grass prairie at Theodore Roosevelt National Park, in western North Dakota, USA. The park consists of two geographically separate units with similar ve
Authors
D. L. Larson, P.J. Anderson, W. Newton
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government