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Comparison of methods for estimating the spread of a non-indigenous species

Aim: To compare different quantitative approaches for estimating rates of spread in the exotic species gypsy moth, Lymantria dispar L., using county-level presence/absence data and spatially extensive trapping grids. Location: USA. Methods: We used county-level presence/absence records of the gypsy moth?s distribution in the USA, which are available beginning in 1900,...

https://www.fs.usda.gov/treesearch/search?keywords=%22estimation%22&%3Bamp%3Bf%5B0%5D=author_facet%3A%22Ouyang%2C%20Ying%22&%3Bf%5B0%5D=author_facet%3A%22Brown%2C%20Mark%22&f%5B0%5D=author_facet%3A%22Tobin%2C%20Patrick%22&f%5B1%5D=author_facet%3A%22Bian%2C%20Xindi%20%28Randy%29%22&f%5B2%5D=author_facet%3A%22Christiansen%2C%20Kelly%22&f%5B3%5D=author_facet%3A%22Nakamoto%2C%20Rodney%22&f%5B4%5D=author_facet%3A%22Popp%2C%20John%22&f%5B5%5D=author_facet%3A%22Conner%2C%20Roger%20C.%22

Author(s):

Patrick C. Tobin; Andrew M. Liebhold; E. Anderson Roberts

Year:

2007

Keywords:

biological invasions, gypsy moth, invasion modelling, invasive species, range expansion, spread

Source:

Journal of Biogeography. 34: 305?312.

Estimation of the spatial autocorrelation function: consequences of sampling dynamic populations in space and time

The estimation of spatial autocorrelation in spatially- and temporally-referenced data is fundamental to understanding an organism's population biology. I used four sets of census field data, and developed an idealized space-time dynamic system, to study the behavior of spatial autocorrelation estimates when a practical method of sampling is employed. Estimates...

Author(s):

Patrick C. Tobin

Year:

2004

Keywords:

Source:

Ecography. 27: 767-775.

Estimating spread rates of non-native species: the gypsy moth as a case study

Estimating rates of spread and generating projections of future range expansion for invasive alien species is a key process in the development of management guidelines and policy. Critical needs to estimate spread rates include the availability of surveys to characterize the spatial distribution of an invading species and the application of analytical methods to...

Author(s):

Patrick Tobin; Andrew M. Liebhold; E. Anderson Roberts; Laura M. Blackburn

Year:

2015

Keywords:

Source:

In: Venette, R.C., ed.; Pest risk modelling and mapping for invasive alien species. Wallingford, UK: CAB International: 131-144. Chapter 9.

Southern forest inventory and analysis volume equation user’s guide

Reliable volume estimation procedures are fundamental to the mission of the Forest Inventory and Analysis (FIA) program. Moreover, public access to FIA program procedures is imperative. Here we present the volume estimation procedures used by the southern FIA program of the U.S. Department of Agriculture Forest Service Southern Research Station. The guide presented...

Author(s):

Christopher M. Oswalt; Roger C. Conner

Year:

2011

Keywords:

Biomass, FIA, volume, volume equation, volume estimation

Source:

Gen. Tech. Rep. SRS–138. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 22 p.

Seasonal and among-stream variation in predator encounter rates for fish prey

Recognition that predators have indirect effects on prey populations that may exceed their direct consumptive effects highlights the need for a better understanding of spatiotemporal variation in predator?prey interactions. We used photographic monitoring of tethered Rainbow Trout Oncorhynchus mykiss and Cutthroat Trout O. clarkii to quantify predator encounter rates...

Author(s):

Bret C. Harvey; Rodney J. Nakamoto

Year:

2013

Keywords:

stream, fish, predation risk, seasonality

Source:

Transactions of the American Fisheries Society 142(3): 621-627

The cost of gypsy moth sex in the city

Since its introduction in the 1860s, gypsy moth, Lymantria dispar (L.), has periodically defoliated large swaths of forest in the eastern United States. Prior research has suggested that the greatest costs and losses from these outbreaks accrue in residential areas, but these impacts have not been well quantified. We addressed this lacuna with a case...

Author(s):

Kevin M. Bigsby; Mark J. Ambrose; Patrick C. Tobin; Erin O. Sills

Year:

2014

Keywords:

Biological invasions Economic assessment Lymantria dispar Non-native forestpests Residential impacts Urban forestry

Source:

Urban Forestry and Urban Greening

Gypsy moth sex in the city: estimating costs and losses

Author(s):

Mark Ambrose; Simone Bauch; Kevin Bigsby; Yun Wu; Patrick Tobin; Erin Sills

Year:

2009

Keywords:

Source:

In: McManus, Katherine A; Gottschalk, Kurt W., eds. Proceedings. 19th U.S. Department of Agriculture interagency research forum on invasive species 2008; 2008 January 8-11; Annapolis, MD. Gen. Tech. Rep. NRS-P-36. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 4.

Forest area and conditions: a 2010 update of Chapter 16 of the Southern Forest Resource Assessment

This report updates the findings of Chapter 16 of the Southern Forest Resource Assessment (Wear and Greis 2002), based on 2010 report year data. Analysis focuses on changes in the South?s forest resources since 1999 using annual inventory, mapped-plot design data available for the first time for all 13 Southern States (excluding west Oklahoma and west Texas). The...

Author(s):

Andrew J. Hartsell; Roger C. Conner

Year:

2013

Keywords:

Diameter class, FIA, forest industry timberland, forest management type, forest-type group, loblolly-shortleaf pine, national forest timberland, oakhickory, sawtimber, softwoods, stand-size class

Source:

e-Gen. Tech. Rep. SRS-GTR-174. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 32 p.

Spread of beech bark disease in the eastern United States and its relationship to regional forest composition

Beech bark disease (BBD) is an insect-fungus complex involving the beech scale insect (Cryptococcus fagisuga Lind.) and one of two canker fungi. Beech scale was introduced to Halifax, Nova Scotia around 1890, presumably with the fungus Neonectria coccinea var. faginata Lohm. The disease has subsequently spread...

Author(s):

Randall S. Morin; Andrew M. Liebhold; Patrick C. Tobin; Kurt W. Gottschalk; Eugene Luzader

Year:

2007

Keywords:

Source:

Canadian Journal of Forest Research 37: 726-736.

Analysis of the timber situation in Florida, 1995- 2025

The demand for wood fiber nationwide is expected to increase in the foreseeable future. Harvesting restrictions on forest lands in the West have increased pressure on the South's forest resources to provide more wood. The ability of Florida and other Southern States to respond is uncertain. The authors describe the current extent, condition, and availability of...

Author(s):

Roger C. Conner; Raymond M. Sheffield

Year:

2005

Keywords:

ATLAS simulations, FIA, final harvest, forest industry, forest-management types, harvest scenarios, nonindustrial private owners, partial cutting, public, timber projections, yield tables

Source:

Res. Pap. SRS-42. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 17 p.

Estimates of biomass in logging residue and standing residual inventory following tree-harvest activity on timberland acres in the southern region

This report provides estimates of biomass (green tons) in logging residue and standing residual inventory on timberland acres with evidence of tree cutting. Biomass as defined by Forest Inventory and Analysis is the aboveground dry weight of wood in the bole and limbs of live trees ? 1-inch diameter at breast height (d.b.h.), and excludes tree foliage, seedlings, and...

Author(s):

Roger C. Conner; Tony G. Johnson

Year:

2011

Keywords:

Annual inventory, biofuel, felled-tree utilization, FIA, forest landowner, loggers, recoverable biomass, timber removals, tree harvesting

Source:

Resour. Bull. SRS–169. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 25 p.

Stream network geomorphology mediates predicted vulnerability of anadromous fish habitat to hydrologic change in southeast Alaska

In rivers supporting Pacific salmon in southeast Alaska, USA, regional trends toward a warmer, wetter climate are predicted to increase mid- and late-21st-century mean annual flood size by 17% and 28%, respectively. Increased flood size could alter stream habitats used by Pacific salmon for reproduction, with negative consequences for the substantial economic, cultural...

Author(s):

Matthew R. Sloat; Gordon H. Reeves; Kelly R. Christiansen

Year:

2016

Keywords:

Climate change, flooding, geomorphology, Pacific salmon, spawning habitat, streambed scour.

Source:

Global Change Biology

Assessing the potential for biomass energy development in South Carolina

An assessment of the potential for developing a sustainable biomass energy industry in South Carolina was conducted. Biomass as defined by Forest Inventory and Analysis is the aboveground dry weight of wood in the bole and limbs of live trees ?1-inch diameter at breast height, and excludes tree foliage, seedlings, and understory...

Author(s):

Roger C. Conner; Tim O. Adams; Tony G. Johnson

Year:

2009

Keywords:

Biofuel, biomass markets, FIA, forest landowner, green tons, hardwood poletimber, haul distance, softwood poletimber, timberland

Source:

Res. Pap. SRS–46. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 19 p.

The relationship between male moth density and female mating success in invading populations of Lymantria dispar

The successful establishment of non-native species in new areas can be affected by many factors including the initial size of the founder population. Populations comprised of fewer individuals tend to be subject to stochastic forces and Allee effects (positive-density dependence), which can challenge the ability of small founder populations to establish in a new area....

Author(s):

Patrick C. Tobin; Ksenia S. Onufrieva; Kevin W. Thorpe

Year:

2012

Keywords:

Allee effect, biological invasions, invasive species, mating behavior, Lepidoptera, Lymantriidae, founder population, density

Source:

Entomologia Experimentalis et Applicata. 146(1): 103-111.

History and current condition of longleaf pine in the Southern United States

Longleaf pine (Pinus palustris Mill.) was once one of the most ecologically important tree species in the Southern United States. Longleaf pine and its accompanying forest ecosystems covered vast swaths of the Southern United States, spanning an estimated 92 million acres. Although once one of the most extensive forest ecosystems in North America, only a fraction of...

Author(s):

Christopher M. Oswalt; Jason A. Cooper; Dale G. Brockway; Horace W. Brooks; Joan L. Walker; Kristina F. Connor; Sonja N. Oswalt; Roger C. Conner

Year:

2012

Keywords:

FIA, forest inventory, longleaf pine, pine conservation, Pinus palustris, southern pines

Source:

Gen. Tech. Rep. SRS–166. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 51 p.

Timber growth, mortality, and change

Forest/> resource statistics from the 2000 Resources Planning Act (RPA) Assessment were updated to provide current information on the...

Author(s):

Roger Conner; Thompson Michael

Year:

2009

Keywords:

RPA, assessment, inventory, forest statistics, area, volume, productivity, health, maps

Source:

In: Smith, W. Brad, tech. coord.; Miles, Patrick D., data coord.; Perry, Charles H., map coord.; Pugh, Scott A., Data CD coord. 2009. Forest resources of the United States, 2007. Gen. Tech. Rep. WO-78. Washington, DC: U.S. Department of Agriculture, Forest Service, Washington Office. 64-66.

South Carolina, 2010 forest inventory and analysis factsheet

The Forest Inventory and Analysis (FIA) Program implemented a nationally consistent annual inventory system in 1998. Under the new design, one-fifth of all inventory plots in South Carolina are visited each year. The southern FIA unit, working cooperatively with South Carolina Forestry Commission crews, established the State?s initial annual inventory plots during the...

Author(s):

Roger C. Conner

Year:

2011

Keywords:

Source:

e-Science Update SRS–041. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 4 p.

Allee effects and pulsed invasion by the gypsy moth

Biological invasions pose considerable threats to the world's ecosystems and cause substantial economic losses. A prime example is the invasion of the gypsy moth in the United States, for which more than $194 million was spent on management and monitoring between 1985 and 2004 alone. The spread of the gypsy moth across eastern North America is, perhaps, the most...

Author(s):

Derk M. Johnson; Andrew M. Liebhold; Patrick C. Tobin; Ottar N. Bjornstad

Year:

2006

Keywords:

Source:

Nature. 444: 361-363.

Kentucky's forests, 2004

Forest land area in the Commonwealth of Kentucky amounted to 11.97 million acres, including 11.6 million acres of timberland. Over 110 different species, mostly hardwoods, account for an estimated 21.2 billion cubic feet of all live tree volume. Hardwood forest types occupy 85 percent of Kentucky?s timberland, and oak-hickory is the dominant forest-type group...

Author(s):

Jeffery A. Turner; Christopher M. Oswalt; James L. Chamberlain; Roger C. Conner; Tony G. Johnson; Sonja N. Oswalt; KaDonna C. Randolph

Year: