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Testing the accuracy of growth and yield models for southern hardwood forests

The accuracy of ten growth and yield models for Southern Appalachian upland hardwood forests and southern bottomland forests was evaluated. In technical applications, accuracy is the composite of both bias (average error) and precision. Results indicate that GHAT, NATPIS, and a locally calibrated version of NETWIGS may be regarded as being operationally valid...

https://www.fs.usda.gov/treesearch/search?keywords=%22Growth%22&%3Bf%5B0%5D=nrt_combined%3A%22Climate%20Change%21Ecological%20adaptation%22&f%5B0%5D=author_facet%3A%22Ontl%2C%20Todd%22&f%5B1%5D=author_facet%3A%22Ramos%2C%20Olga%22&f%5B2%5D=author_facet%3A%22Law%2C%20Darin%22&f%5B3%5D=author_facet%3A%22Dolloff%2C%20C.%20Andrew%22&f%5B4%5D=author_facet%3A%22Young%2C%20Michael%22&f%5B5%5D=author_facet%3A%22Manley%2C%20Ph.D.%2C%20Patricia%22&f%5B6%5D=author_facet%3A%22Reid%2C%20Shawna%22

Author(s):

H. Michael Rauscher; Michael J. Young; Charles D. Webb; Daniel J. Robison

Year:

2000

Keywords:

Source:

Southern Journal of Applied Forestry. 24(3): 176-185

Fine-root growth in a forested bog is seasonally dynamic, but shallowly distributed in nutrient-poor peat

Background and aims. Fine roots contribute to ecosystem carbon, water, and nutrient fluxes through resource acquisition, respiration, exudation, and turnover, but are understudied in peatlands. We aimed to determine how the amount and timing of fine-root growth in a forested, ombrotrophic bog varied across gradients of vegetation density, peat...

Author(s):

Colleen M. Iversen; Joanne Childs; Richard J. Norby; Todd A. Ontl; Randall K. Kolka; Deanne J. Brice; Karis J. McFarlane; Paul J. Hanson

Year:

2018

Keywords:

Fine roots, Nutrient availability, Peatlands, Rooting depth distribution, Root growth, Root peak standing crop

Source:

Plant and Soil

The effects of forest residual debris disposal on perennial grass emergence, growth, and survival in a ponderosa pine ecotone

Soil surface conditions can have profound effects on plant seedling emergence and subsequent seedling survival. To test the hypothesis that different soil-surface treatments with logging residue affect range grass seedling emergence and survival, 6 alternative forest-residual treatments were established in the summer of 1998 following thinning of mature trees from...

Author(s):

Darin J. Law; Peter F. Kolb

Year:

2007

Keywords:

fire, open savanna ecosystem, restoration, seedbed, woody debris disposal

Source:

Rangeland Ecology & Management. 60(6): 632-643.

Using multi-spectral landsat imagery to examine forest health trends at Fort Benning, Georgia

Assessing vegetation health attributes like canopy density or live crown ratio and ecological processes such as growth or succession ultimately requires direct measures of plant communities. However, on-theground sampling is labor and time intensive, effectively limiting the amount of forest that can be evaluated. Radiometric data collected with a variety of sensors ...

Author(s):

Shawna L. Reid; Joan L. Walker; Abigail Schaaf

Year:

2016

Keywords:

Source:

In:Proceedings of the 18th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-212. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 614 p.

Modeling predicts that redd trampling by cattle may contribute to population declines of native trout

Unrestricted livestock grazing can degrade aquatic ecosystems, and its effects on native vertebrate species are generally mediated by changes to physical habitat. Recently, high estimated rates of cattle trampling on artificial redds within federal grazing allotments in southwestern Montana, USA, has raised concern that direct mortality from trampling may contribute to...

Author(s):

Douglas P. Peterson; Bruce E. Rieman; Michael K. Young; James A. Brammer

Year:

2010

Keywords:

cattle grazing, mechanical disturbance, Montana, USA, mortality, Oncorhynchus clarkii lewisi, persistence, population models, resilience, riparian habitat, trampling, westslope cutthroat trout

Source:

Ecological Applications. 20(4): 954-966.

Does diet influence consumer nutrient cycling? Macroinvertebrate and fish excretion in streams

Consumer nutrient cycling supplies limiting elements to autotrophic and heterotrophic organisms in aquatic systems. However, the role of consumers in supplying nutrients may change depending on their diet and their own stoichiometry. We evaluated the stoichiometry, N and P excretion, and diets of the dominant macroinvertebrates and fish at 6 stream sites to determine...

Author(s):

Ryan McManamay; Jackson Webster; H. Valett; C. Dolloff

Year:

2011

Keywords:

stoichiometry, excretion, nutrient cycling, stream, consumers

Source:

Journal of the North American Benthological Society 30(1):84-102

Novel dry forests in southwestern Puerto Rico

We report results of new research on (1) community composition of novel subtropical dry forests developing on abandoned pastures and agricultural fields in both private and protected public lands and (2) seed germination and growth rates of plantings of native tree species on degraded soils. We found that novel dry forests were dominated by introduced species, which...

Author(s):

Sandra Molina Colón; Ariel E. Lugo; Olga Ramos

Year:

2011

Keywords:

Dry forests, New forests, Emerging forests, Novel forests, Guánica Forest, Puerto Rico, Caribbean, Succession, Old fields

Source:

Forest Ecology and Management. 262: 170-177.

Summer movements of boreal toads (Bufo boreas boreas) in two western Montana basins

The Boreal Toad (Bufo boreas boreas) is widely distributed in the western United States but has declined in portions of its range. Research directed at conserving Boreal Toads has indicated that their movements are largely terrestrial and often limited after the breeding season. We used a combination of stream-based netting, PIT tagging, and radio...

Author(s):

David A. Schmetterling; Michael K. Young

Year:

2008

Keywords:

boreal toads, Bufo boreas boreas, Montana

Source:

Journal of Herpetology. 42(1): 111-123.

A report from Lake Tahoe: Observation from an ideal platform for adaptive management

The Lake Tahoe basin is in environmenal distress. The lake is still one of the world?s most transparent bodies of water, but its fabled clarity has declined by half since discovery of the high-mountain lake basin by explorers a century and a half ago. At that time, incredibly, objects could be observed on the lake?s bottom a hundred feet down. Two-thirds of the lake?s...

Author(s):

Dennis D. Murphy; Patricia N. Manley

Year:

2009

Keywords:

Source:

Water Resources Impact 11(3): 15-17

Urban and rural land use in Puerto Rico

We have developed three land use regions for Puerto Rico: Urban, Suburban, and Rural (Gould et al. 2008; Martinuzzi et al. 2007). These three regions can also be considered urban, densely-populated rural, and sparsely-populated rural or as urban and wildland with a wildland-urban interface. The suburban use is the most dynamic in terms of population growth and land...

Author(s):

Sebastian Martinuzzi; William A. Gould; Olga M. Ramos Gonzalez; Maya Quinones; Michael E. Jimenez

Year:

2008

Keywords:

population growth, population density, land cover, wildland-urban interface, Puerto Rico, remote sensing, Landsat

Source:

Res. Map IITF-RMAP-01. Rio Piedras, PR: U.S. Department of Agriculture Forest Service, International Institute of Tropical Forestry.

Generation-scale movement patterns of cutthroat trout (Oncorhynchus clarkii pleuriticus) in a stream network

Movements by stream fishes have long been the subject of study and controversy. Although much discussion has focused on what proportion of fish adopt mobility within particular life stages, a larger issue involves the lifetime movements of individuals. I evaluated movements of different sizes and ages of Colorado River cutthroat trout (Oncorhynchus clarkii pleuriticus...

Author(s):

Michael K. Young

Year:

2011

Keywords:

cutthroat trout, Oncorhynchus clarkii pleuriticus

Source:

Canadian Journal of Fisheries and Aquatic Sciences. 68: 941-951.

Climate vulnerability of native cold-water salmonids in the Northern Rockies Region [Chapter 5]

During the 21st century, climate change is expected to alter aquatic habitats throughout the Northern Rocky Mountains, intermountain basins, and western Great Plains. Particularly in montane watersheds, direct changes are likely to include warmer water temperatures, earlier snowmelt-driven runoff, earlier declines to summer baseflow, downhill movement of perennial...

Author(s):

Michael K. Young; Daniel J. Isaak; Scott Spaulding; Cameron A. Thomas; Scott A. Barndt; Matthew C. Groce; Dona Horan; David E. Nagel

Year:

2018

Keywords:

adaptation, climate change, ecological disturbance, climate-smart resource management, Northern Rocky Mountains, vulnerability assessment

Source:

In: Halofsky, Jessica E.; Peterson, David L.; Dante-Wood, S. Karen; Hoang, Linh; Ho, Joanne J.; Joyce, Linda A., eds. Climate change vulnerability and adaptation in the Northern Rocky Mountains [Part 1]. Gen. Tech. Rep. RMRS-GTR-374. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 87-127.

Analysis of trade-offs between threats of invasion by nonnative brook trout (Salvelinus fontinalis) and intentional isolation for native westslope cutthroat trout (Oncorhynchus clarkii lewisi)

Native salmonid fishes often face simultaneous threats from habitat fragmentation and invasion by nonnative trout species. Unfortunately, management actions to address one may create or exacerbate the other. A consistent decision process would include a systematic analysis of when and where intentional use or removal of barriers is the most appropriate action. We...

Author(s):

Douglas P. Peterson; Bruce E. Reiman; Jason B. Dunham; Kurt D. Fausch; Michael K. Young

Year:

2008

Keywords:

brook trout, Salvelinus fontinalis, westslope cutthroat trout, Oncorhynchus clarkii lewisi, salmonid fishes, nonnative invasions, populations

Source:

Canadian Journal of Fisheries and Aquatic Science. 65: 557-573.

Drill, baby, drill: the influence of woodpeckers on post-fire vertebrate communities through cavity excavation

Several studies have addressed the importance of woodpeckers as ecological engineers in forests due to their excavation of cavities. Although research in green, unburned forests has identified the influence of different excavators on secondary use by cavity-dependent species, little is known about the relative importance of cavities created by woodpeckers in recently...

Author(s):

Gina L. Tarbill; Patricia N. Manley; Angela M. White

Year:

2015

Keywords:

burn severity, community ecology, ecological succession, community dynamics, pioneer species, post-fire habitat

Source:

Journal of Zoology. 296(2): 95-103

Total Publications in Treesearch: 53,230

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Testing the accuracy of growth and yield models for southern hardwood forests

Fine-root growth in a forested bog is seasonally dynamic, but shallowly distributed in nutrient-poor peat

The effects of forest residual debris disposal on perennial grass emergence, growth, and survival in a ponderosa pine ecotone

Using multi-spectral landsat imagery to examine forest health trends at Fort Benning, Georgia

Modeling predicts that redd trampling by cattle may contribute to population declines of native trout

Does diet influence consumer nutrient cycling? Macroinvertebrate and fish excretion in streams

Novel dry forests in southwestern Puerto Rico

Summer movements of boreal toads (Bufo boreas boreas) in two western Montana basins

A report from Lake Tahoe: Observation from an ideal platform for adaptive management

Urban and rural land use in Puerto Rico

Generation-scale movement patterns of cutthroat trout (Oncorhynchus clarkii pleuriticus) in a stream network

Climate vulnerability of native cold-water salmonids in the Northern Rockies Region [Chapter 5]

Analysis of trade-offs between threats of invasion by nonnative brook trout (Salvelinus fontinalis) and intentional isolation for native westslope cutthroat trout (Oncorhynchus clarkii lewisi)

Drill, baby, drill: the influence of woodpeckers on post-fire vertebrate communities through cavity excavation

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