Search Results - "Fredericksen, Todd S."

Biodiversity Conservation in Managed Forests by Todd S. Fredericksen

“…In addition to management for forest products, an increasing priority in the management of forests is the provision and maintenance of ecosystem services [...]…”
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Thermal Regulation and Habitat use of the Eastern Box Turtle in Southwestern Virginia by Fredericksen, Todd S

“…While Terrapene Carolina Carolina (Eastern Box Turtle) are found over a wide geographic range, they appear to select microhabitats based on the need for…”
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Soil Effects on Forest Structure and Diversity in a Moist and a Dry Tropical Forest by Peña-Claros, Marielos, Poorter, Lourens, Alarcón, Alfredo, Blate, Geoffrey, Choque, Urbano, Fredericksen, Todd S., Justiniano, Marco J., Leaño, Claudio, Licona, Juan Carlos, Pariona, William, Putz, Francis E., Quevedo, Lincoln, Toledo, Marisol

“…Soil characteristics are important drivers of variation in wet tropical forest structure and diversity, but few studies have evaluated these relationships in…”
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Forest Harvesting Impacts on the Structure and Composition of Coniferous Forests in Mexico by Giovanni Estrada Valdés, Angel Rolando Endara Agramont, Santiago Vazquez-Lozada, Fredericksen S. Todd

“…The effect of forest harvesting on the composition and structure of a temperate coniferous forest in Mexico was evaluated after three harvesting periods from…”
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Sustainability of timber harvesting in Bolivian tropical forests by Dauber, Erhard, Fredericksen, Todd S., Peña, Marielos

“…Data from a total of 117 ha of small (0.25–4 ha) permanent plots in four ecoregions of Bolivia, along with information on harvest data, were used in a…”
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Contributions of root and stump sprouts to natural regeneration of a logged tropical dry forest in Bolivia by Mostacedo, Bonifacio, Putz, Francis E., Fredericksen, Todd S., Villca, Armando, Palacios, Turian

“…A major impediment to the sustainable management of tropical dry forests in Bolivia is the scarcity of natural regeneration of commercial timber tree species…”
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Regeneration of timber species following selection logging in a Bolivian tropical dry forest by Fredericksen, Todd S, Mostacedo, Bonifacio

“…The establishment of commercial tree regeneration is currently a focus for concern regarding the sustainability of logging in the tropical forests of Bolivia…”
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Area disturbed and residual stand damage following logging in a Bolivian tropical forest by Jackson, Scott M, Fredericksen, Todd S, Malcolm, Jay R

“…The area disturbed and damage to the residual stand caused by planned diameter-limit logging was assessed in a tropical humid forest of Bolivia and compared…”
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Effect of skidder disturbance on commercial tree regeneration in logging gaps in a Bolivian tropical forest by Fredericksen, Todd S., Pariona, William

“…The impact of skidder disturbance on recruitment of commercial tree regeneration within logging gaps was studied using paired scarified and unscarified plots…”
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Natural regeneration and liberation of timber species in logging gaps in two Bolivian tropical forests by Pariona, William, Fredericksen, Todd S., Licona, J.C.

“…One-year-old logging gaps were sampled in dry and humid selectively-logged Bolivian tropical forests to determine the density of commercial tree regeneration…”
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Impacts of selective logging on amphibians in a Bolivian tropical humid forest by Fredericksen, Nell J, Fredericksen, Todd S

“…We sampled the abundance, species richness, and species composition of adult amphibians in disturbed and undisturbed areas within 20 m of a seasonal stream 1…”
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Effects of urbanization on the population structure of freshwater turtles across the United States by Bowne, David R., Cosentino, Bradley J., Anderson, Laurel J., Bloch, Christopher P., Cooke, Sandra, Crumrine, Patrick W., Dallas, Jason, Doran, Alexandra, Dosch, Jerald J., Druckenbrod, Daniel L., Durtsche, Richard D., Garneau, Danielle, Genet, Kristen S., Fredericksen, Todd S., Kish, Peter A., Kolozsvary, Mary Beth, Kuserk, Frank T., Lindquist, Erin S., Mankiewicz, Carol, March, James G., Muir, Timothy J., Murray, K. Greg, Santulli, Madeline N., Sicignano, Frank J., Smallwood, Peter D., Urban, Rebecca A., Winnett-Murray, Kathy, Zimmermann, Craig R.

“…Landscape-scale alterations that accompany urbanization may negatively affect the population structure of wildlife species such as freshwater turtles. Changes…”
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Occurrence and effect of dwarf mistletoe (Arceuthobium globosum and A. vaginatum) in high-elevation forests in México by Zúñiga, José Jonathan Aguirre, Bobadilla, Rosa Laura Heredia, Maass, Sergio Franco, Fredericksen, Todd S., Agramont, Angel Rolando Endara

“…Climate change has very important effects on high mountain forests (>3500 masl), which face various ecological problems associated with global change including…”
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A broader approach to understanding urbanization effects on freshwater turtles: reply to Lambert and Steen 2019 by Bowne, David R., Cosentino, Bradley J., Anderson, Laurel J., Cooke, Sandra, Dosch, Jerald J., Garneau, Danielle, Fredericksen, Todd S., Kolozsvary, Mary Beth, Lindquist, Erin S., March, James G., Urban, Rebecca A., Zimmermann, Craig R.

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Impact of timber harvesting on carbon storage in montane forests of central Mexico by Rojas-García, Fabiola, Fredericksen, Todd S., Vazquez Lozada, Santiago, Endara Agramont, Angel Rolando

“…Cut stumps are the legacy of forest harvesting and allow for the estimation of carbon loss from the ecosystem. The objective of this study was to estimate…”
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Moving beyond reduced-impact logging towards a more holistic management of tropical forests by SIST, Plinio, GARCIA-FERNANDEZ, Carmen, FREDERICKSEN, Todd S

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Silvicultural intensification for tropical forest conservation by Fredericksen, Todd S, Putz, Francis E

“…Minimizing the deleterious environmental impacts of logging and other silvicultural treatments is the primary conservation goal in tropical forests managed for…”
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Natural regeneration and environmental relationships of tree species in logging gaps in a Bolivian tropical forest by Park, Andrew, Joaquin Justiniano, M., Fredericksen, Todd S.

“…Successional dynamics and environmental associations of 18 pioneer and 24 commercial tree species were studied in a 4-year chronosequence of logging gaps in a…”
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Liana loads and post-logging liana densities after liana cutting in a lowland forest in Bolivia by Alvira, Diana, Putz, Francis E., Fredericksen, Todd S.

“…Liana infestations can be a problem in forests managed for timber because lianas decrease rates of tree growth, damage tree boles, and inhibit tree…”
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Regeneration patterns of Eastern white pine (Pinus strobus L.) in hardwood-dominated forests in Virginia, USA by Fredericksen, Todd S., Agramont, Angel Rolando Endara

“…Eastern white pine ( Pinus strobus L.) is a moderately shade-tolerant species that co-occurs with hardwood tree species in many forests of the eastern United…”
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