Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Lucy E. Tyrrell"'
Publikováno v:
Natural Areas Journal. 27:366-373
To identify and prioritize natural areas for consideration as research natural areas (RNAs) on the Superior National Forest (National Forest hereafter NF) in northeastern Minnesota, we developed a six-step approach that could be applied to natural ar
Autor:
Lucy E. Tyrrell, Thomas R. Crow
Publikováno v:
Canadian Journal of Forest Research. 24:1672-1683
We studied the dynamics of coarse woody debris (logs and snags) in old-growth forests by estimating rates of tree mortality, snag change, and log decay in hemlock–hardwood stands located in northern Wisconsin and northern Michigan. To estimate mort
Autor:
Thomas R. Crow, Lucy E. Tyrrell
Publikováno v:
Ecology. 75:370-386
We characterized the structure of 25 old-growth hemlock-hardwood forests in northern Wisconsin and adjacent Michigan in order to examine our working hypotheses that differences in their structure are related to stand age (i.e., stage of development)
Publikováno v:
Ecology. 92(2)
Throughout interior Alaska (U.S.A.), a gradual warming trend in mean monthly temperatures occurred over the last few decades (approximatlely 2-4 degrees C). The accompanying increases in woody vegetation at many alpine treeline (hereafter treeline) l
Autor:
Lucy E. Tyrrell, Gregory J. Nowacki, David S. Buckley, Elizabeth A. Nauertz, Jeffrey N. Niese, Jeanette L. Rollinger, John C. Zasada
Compiles information about old-growth attributes for nine forest type groups that occur in the eastern United States. A range of values for each old-growth attribute for each forest type is summarized regionally from published and unpublished sources
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcc419c5f8ba1d0e9c50aa0e898696e6
https://doi.org/10.2737/nc-gtr-197
https://doi.org/10.2737/nc-gtr-197
Autor:
Ralph E. J. Boerner, Lucy E. Tyrrell
Publikováno v:
Canadian Journal of Botany. 65:1570-1577
This study compared how two tree species with different leaf life-spans differ in their adaptations to low nutrient availability in a Wisconsin bog. Seasonal patterns of foliar nutrient concentration, nutrient resorption, leaching loss to simulated r
Publikováno v:
Plant Species Biology. 2:67-73
Species of Trillium in the subgenus Phyllantherum are either polymorphic for flower color, or monomorphic for flower color and related to a polymorphic species. This leads to the suggestion that polymorphic species may be the progenitors for monomorp