Team Leader / Research Wildlife Biologist
271 Mast Road
Contact Mariko Yamasaki
I work on forest management issues that affect the quality and quantity of vertebrate wildlife habitat availability in the northeastern US, and I provide useful wildlife-silvicultural habitat guidance for forest managers on working forest landscapes and across non-industrial forest landscapes.
We continue to work on the influence of silvicultural practices and land capability on species-habitat relationships across working forest landscapes as well as urbanizing forest landscapes. Forest raptors, passerine birds, small mammals, bats, and salamanders provide numerous opportunities to investigate these habitat relationships for forest managers desiring integrated wildlife/timber practices in northern forest ecosystems. We also have an increasing interest in the level of contaminants, particularly mercury, in forest-dwelling species.
Why This Research is Important
There is a pressing need to provide forest managers with information and strategies to maintain vertebrate diversity and habitat quality in the face of increasing urbanization of forest landscapes in the northeastern US as well as provide guidance to forest managers on working forest landscapes.
- University of Michigan, M.S. Natural Resources (Wildlife)
- University of Michigan, B.S. Anthropology-Zoology
- The Wildlife Society
- Society of American Foresters (SAF)
- American Society of Mammalogists and Raptor Research Foundation
- USGS Bird Banding Lab, Certified Wildlife Biologist And Master Station Permit Holder
Featured Publications & Products
- Leak, William B.; Yamasaki, Mariko; Holleran, Robbo. 2014. Silvicultural guide for northern hardwoods in the northeast.
- Yamasaki, Mariko; Costello, Christine A.; Leak, William B. 2014. Effects of clearcutting, patch cutting, and low-density shelterwoods on breeding birds and tree regeneration in New Hampshire northern hardwoods.
- DeGraaf, Richard M.; Lester, Anna M.; Yamasaki, Mariko; Leak, William B. 2007. Visual simulations of forest wildlife habitat structure, change, and landscape context in New England.
- Leak, William B.; Yamasaki, Mariko. 2010. Seventy-year record of changes in the composition of overstory species by elevation on the Bartlett Experimental Forest.
- Yamasaki, Mariko; Leak, William B. 2006. Snag longevity in managed northern hardwoods.
- Yamasaki, Mariko. 2006. Wildlife assessments at the Bartlett Experimental Forest.
- Yamasaki, Mariko. 2005. Bats and small mammals in old growth habitats in the White Mountains.
- Leak, William B.; Yamasaki, Mariko ; Bennett, Karen P.; Desmarais, Ken ; Pohl, Peter ; Costello, Christine ; Munck, Isabel . 2020. White pine silviculture for timber and wildlife habitat in New England.
- Hoover, Coeli M.; Ducey, Mark J.; Colter, R. Andy; Yamasaki, Mariko. 2018. Evaluation of alternative approaches for landscape-scale biomass estimation in a mixed-species northern forest.
- Stephens, Ryan B.; Hocking, Daniel J.; Yamasaki, Mariko; Rowe, Rebecca J. 2016. Synchrony in small mammal community dynamics across a forested landscape.
- Hocking, Daniel J.; Babbitt, Kimberly J.; Yamasaki, Mariko. 2013. Comparison of silvicultural and natural disturbance effects on terrestrial salamanders in northern hardwood forests.
- Leak, William B.; Yamasaki, Mariko. 2013. Effects of low-density thinning in a declining white pine stand in Maine.
- Leak, William B.; Yamasaki, Mariko. 2013. Regeneration of upper-elevation red oak in the White Mountains of New Hampshire.
- Leak, William B.; Yamasaki, Mariko. 2012. 80 Years of thinning research on northern hardwoods in the Bartlett Experimental Forest, New Hampshire.
- Leak, William B.; Yamasaki, Mariko. 2012. Historical (1899) age and structural characteristics of an old-growth northern hardwood stand in New York State.
- Leak, William B.; Yamasaki, Mariko. 2012. Tree species migration studies in the White Mountains of New Hampshire.
- Leak, William B.; Yamasaki, Mariko. 2011. The Bartlett Experimental Forest, Its first 75 years.
- King, David; Yamasaki, Mariko; DeGraaf, R.M.; Costello, Christine. 2011. Three decades of avian research on the Bartlett Experimental Forest, New Hampshire, U.S.A.
- DeGraaf, Richard M.; Yamasaki, Mariko ; Leak, William B.; Lester, Anna M. 2006. Technical guide to forest wildlife habitat management in New England.
- DeGraaf, Richard M.; Yamasaki, Mariko ; Leak, William B.; Lester, Anna M. 2005. Landowner's guide to wildlife habitat, forest management for the New England Region.
- DeGraaf, Richard M.; Yamasaki, Mariko. 2003. Options for managing early-successional forest and shrubland bird habitats in the northeastern United States.
- Yamasaki, Mariko. 2003. White pine as wildlife habitat.
- DeGraaf, Richard M.; Yamasaki, Mariko. 2002. Effects of edge contrast on redback salamander distribution in even-aged northern hardwoods.
- Yamasaki, Mariko. 2001. Coarse woody debris on the Bartlett Experimental Forest.
- Yamasaki, Mariko. 2001. Writing integrated prescriptions from your cruise results -- or how do i recognize and treat wildlife habitat elements.
- Yamasaki, Mariko. 2000. Forestry effects on vertebrate species habitats in the riparian zone.
- Costello, Christine A.; Yamasaki, Mariko; Pekins, Peter J.; Leak, William B.; Neefus, Christopher D. 2000. Songbird response to group selection harvests and clearcuts in a New Hampshire northern hardwood forest.
- Yamasaki, Mariko; DeGraaf, Richard M.; Lanier, John W. 2000. Wildlife habitat associations in eastern hemlock - birds, smaller mammals, and forest carnivores.
- DeGraaf, Richard M.; Hestbeck, Jay B.; Yamasaki, Mariko. 1998. Associations between breeding bird abundance and stand structure in the White Mountains, New Hampshire and Maine, USA.
- Leak, William B.; Yamasaki, Mariko; Kittredge, David B., Jr.; Lamson, Neil I.; Smith, Marie-Louise. 1997. Applied ecosystem management on nonindustrial forest land..
- Krusic, Rachel A.; Yamasaki, Mariko; Neefus, Christopher D.; Pekins, Peter J. 1996. Bat habitat use in White Mountain National Forest.
- Leak, William B.; Yamasaki, Mariko; Smith, Marie-Louise; Funk, David T. 1994. Selection criteria for forested natural areas in New England, USA.
- DeGraaf, Richard M.; Yamasaki, Mariko; Leak, William B. 1993. Management of New England northern hardwoods, spruce-fir, and eastern white pine for neotropical migratory birds.
- DeGraaf, Richard M.; Yamasaki, Mariko. 1992. A nondestructive technique to monitor the relative abundance of terrestrial salamanders.
- DeGraaf, Richard M.; Yamasaki, Mariko; Leak, William B.; Lanier, John W. 1992. New England wildlife: management forested habitats.
- Tubbs, Carl H.; DeGraaf, Richard M.; Yamasaki, Mariko; Healy, William M. 1987. Guide to wildlife tree management in New England northern hardwoods.
|Has Climate Affected Tree Species Distribution in New England?|
Remeasurement of plots 70 years after establishment on the White Mountain National Forest shows no evidence of changes in elevations among clima ...
|LiDAR: A Bird’s-Eye Look at Wildlife Habitat|
Wildlife species often prefer habitats with specific characteristics. For example, many birds need dense brushy areas where they can safely nest ...
|No Signifigant Losses of Stand Productivity From Whole-tree Harvesting and Clearcutting in New England Forests|
Silviculturalists have been concerned over nutrient losses from clearcutting and, more recently, whole-tree harvesting in New England since the ...
|Shrubland Birds and Their Habitats|
Shrubland birds, such as prairie warblers and field sparrows require constant habitat management, and thus, reliable and specific knowledge to g ...
|Silvicultural Guide for Northern Hardwoods in the Northeast Updated|
This revision of the 1987 silvicultural guide updates and expands the silvicultural information on northern hardwoods. It provides additional i ...