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Keyword: provenance

Selecting the provenance: Local native or nonlocal native?

Science Spotlights Posted on: September 13, 2018
Over the last decade, decisions surrounding the provenance, or the geographic origin of a seed source, has sparked a debate whether or not to use local native or nonlocal native seed. A new paper turns a traditionally theoretical discussion into specific priority actions for researchers and practitioners involved in restoration.

Selecting the provenance: local native or nonlocal native?

FS News Posted on: July 11, 2018
Over the last decade, decisions surrounding the provenance, or the geographic origin of a seed source, has sparked a debate whether or not to use local native or nonlocal native seed. A new paper turns a traditionally theoretical discussion into specific priority actions for researchers and practitioners involved in restoration.

Historical provenance study at Fort Valley Experimental Forest

Projects Posted on: August 24, 2016
Forest management will protect genetic integrity of tree species only if their genetic diversity is understood and considered in decision-making. Genetic knowledge is particularly important for species such as ponderosa pine that are distributed across wide geographic distances and types of climates. Researchers revisit an assisted migration study in an Arizona ponderosa pine forest after 100 years to assess genetic diversity, adaptation patterns, and improve forest management of ponderosa pine.

Genetic variation in ponderosa pine: A 15-year test of provenances in the Great Plains

Publications Posted on: May 12, 2016
Survival was highest and height growth greatest in ponderosa pine provenances from northcentral Nebraska, southwest South Dakota, and the High Plains region. Genotype x environment interaction was minimal in central and northern Great Plains plantations. Age/age correlations indicate provenances expressing superior height growth can be identified after 5 or 10 years.

Data product containing tree heights, survival, and genetic variation for "Genetic Variation in Ponderosa Pine: A 15-year Test of Provenances in the Great Plains"

Datasets Posted on: March 27, 2015
Seeds from 79 natural stands throughout the ponderosa pine range, both east and west of the Continental Divide, were sown and grown in a nursery for three to four years in the 1960's. These seeds were then distributed to plantations, mostly in the Great Plains. This dataset contains the height of the surviving trees after 15 years for 14 plantations.

Data product containing 22-year Nebraska tree heights, survival, and genetic variation for "Ten-Year Performance of Ponderosa Pine Provenances in the Great Plains of North America"

Datasets Posted on: March 27, 2015
Seeds from 79 natural stands throughout the ponderosa pine range, both east and west of the Continental Divide, were sown and grown in a nursery for three to four years in the 1960's. Some of these seeds were then distributed to three different field plantations in Alliance, Hastings, and Plattsmouth Nebraska. These datasets contain individual tree heights of surviving trees, taken at various frequencies from 1968 to 1987.

Data product containing 20-year tree heights, diameters, and genetic variation for "Scots Pine in Eastern Nebraska: A Provenance Study"

Datasets Posted on: March 27, 2015
Seedling progenies of 36 rangewide provenances of Scots Pine (Pinus sylvetris) were established in a field test at Horning State Farm experimental area near Plattsmouth, Nebraska in April of 1962. Tree heights were measured at the end of each growing season from 1963 through 1969, and again in 1971. Tree height and diameter at breast height were both measured at the end of the growing season in 1976, 1978, 1979, and 1981.

Data product containing 5-year tree heights, survival, and genetic variation for "Genetic Variation in Great Plains Juniperus"

Datasets Posted on: March 27, 2015
Cones from 275 Juniperus trees were collected throughout the Great Plains from 1973 to 1976 and then sown and grown in a nursery in Nebraska in August of 1977. In 1980 the 2-year old seedlings were distributed to plantations across the Great Plains.

Are local filters blind to provenance? Ant seed predation suppresses exotic plants more than natives

Publications Posted on: October 01, 2014
The question of whether species' origins influence invasion outcomes has been a point of substantial debate in invasion ecology. Theoretically, colonization outcomes can be predicted based on how species' traits interact with community filters, a process presumably blind to species' origins.