Results 111 to 120 of about 8,551 (165)

Dendroecology of American chestnut in a disjunct stand of oak–chestnut forest

Canadian Journal of Forest Research, 2006
American chestnut (Castanea dentata (Marsh.) Borkh.) was once an important hardwood species in the forests of eastern North America. Following the chestnut blight fungus (Cryphonectria parasitica (Murrill) Barr) pandemic of the early 20th century, C. dentata remains only as sprouts throughout much of its range.
Ryan W McEwan, Carolyn H Keiffer, Brian C McCarthy   +2 more
openaire   +1 more source

BREEDING BLIGHT RESISTANT AMERICAN CHESTNUT FOR CANADA

Acta Horticulturae, 2014
Southern Ontario is the northern end of the range of American chestnut (Castanea dentate). Since 2000, we have been breeding American chestnut with resistance to chestnut blight (Cryphonectria parasitica). Initially, two populations of trees were produced: 1) with extant Canadian C.
A. Dale, D. Galic
openaire   +1 more source

Niche contraction of American chestnut in response to chestnut blight

Canadian Journal of Forest Research, 2012
Invasive pathogens can cause native population declines and change native species distributions, but the spatial limitations posed by disease are rarely explored. This study explored spatiotemporal variation in American chestnut ( Castanea dentata (Marsh.) Borkh.) survival over an 80-year period in response to the introduction of an invasive pathogen ...
openaire   +1 more source

Resurrecting the Lost Flames of American Chestnut

Ecosystems, 2018
Loss of native foundation tree species to introduced pests profoundly alters the structure and function of many forest ecosystems. Recent advances to resurrect or prevent the loss of species by developing resistant hybrids hold promise, but uncertainty remains about the potential impacts of introducing a novel genotype on ecological processes, such as ...
Jeffrey M. Kane, J. Morgan Varner, Michael R. Saunders   +2 more
openaire   +1 more source

American Chestnut Seed Dispersal and Regeneration

Northeastern Naturalist, 2014
Abstract Wild stock Castanea dentate (American Chestnut) were planted at the edge of a forest clearing in western Maine in 1982, and four had grown to a height of 13 m and diameter breast high of 39 cm by 2014. They showed no sign of disease and were producing annual seed crops.
openaire   +1 more source

The Effect of Growth Rate, Age, and Chestnut Blight on American Chestnut Mortality

Castanea, 2011
Abstract The factors affecting tree mortality have a significant impact on forest dynamics. Trees experience numerous biotic and abiotic stresses, and allocation of available resources can determine tree survival in different conditions. Recent studies support an intraspecific relationship between radial growth rate and longevity.
David L. Reynolds, Katie L. Burke
openaire   +1 more source

American Chestnut Caching by Red Squirrels

Northeastern Naturalist, 2015
Abstract I observed Tamiasciurus hudsonicus (Red Squirrel) harvesting Castanea dentata (American Chestnut) fruits in 2 different manners: they either snipped off relatively immature fruit (burrs) and chewed them open on the ground to feed on the unripe seeds, or they foraged on the tree as the ripened fruit opened and released their seeds, carried 1 ...
openaire   +1 more source

American chestnut survival in understory mesic sites following the chestnut blight pandemic

Canadian Journal of Botany, 1992
American chestnut survival was studied in 15 mesic understory sites located in the former oak–chestnut forest region of the eastern United States. Mesic deep coves and northeasterly slopes studied had no or low chestnut survival. Several shallow coves, north to northwesterly slopes, and a large cove slope examined had good chestnut survival.
openaire   +1 more source

American chestnut set for genetically modified revival

New Scientist, 2014
New strains of American chestnuts are resistant to a devastating fungus and pass on resistance to their offspring, suggesting that the trees can be ...
openaire   +1 more source

AMERICAN CHESTNUT SPROUT DYNAMICS

Acta Horticulturae, 2014
D.L. Stevens, K. Soltau, A. Davelos Baines, A.M. Jarosz   +3 more
openaire   +1 more source