Papers by Karen Plucinski
McCracken, Karen E., M.A. July 1990 Zoology Microhabitat and Dietary Partitioning In Three Specie... more McCracken, Karen E., M.A. July 1990 Zoology Microhabitat and Dietary Partitioning In Three Species of Shrews at Yellow Bay, Montana Director; Kerry R. Foresman I analyzed habitat use patterns and food habitats of three species of shrews (Sorex vagrans. Sorex cinereus. and Sorex montlcolus) In a grand fir (Abies grandis)/ queencup beadllly (Cllntonla unlflora) habitat In northwestern Montana. Distribution of the three species differed significantly across meslc and xerlc sites, with Sorex vagrans captures being most numerous on the meslc site, Sorex cinereus captures most numerous on the xerlc site, and Sorex montlcolus. at Is lower elevatlonal range, was Infrequently captured on both plots. Thirty-five live-trapped Sorex vaerans and Sorex clnereus were marked with phos phorescent dust and released at their site of capture. Mapping of Individual's movements revealed no detectable differences between species, but the most conspicuous habitat component used by both was the space b...
Journal of Mammalogy, 1999
We analyzed live-trapping data from 10 years (1983-1992) of a long-term study of forest ecosystem... more We analyzed live-trapping data from 10 years (1983-1992) of a long-term study of forest ecosystems in southern Maine to investigate relationships between seed fall of red oak (Quercus rubra), white pine (Pinus strobus), and red maple (Acer rubrum), and populations of Peromyscus leucopus and Clethrionomys gapperi. Spring populations of Peromyscus were correlated positively with crops of both red oak and white pine in the previous autumn; summer populations were correlated only with the acorn crop of red oak in the previous year. Populations of Clethrionomys were not correlated with either red oak or white pine in spring or summer. The increase from spring to summer in Peromyscus was associated positively with the magnitude of seed fall from red maple in the current year. Following years of above average acorn production of red oak, adult male and female Peromyscus weighed more than in years following low acorn production. Following 2 years of high acorn production, captures of Peromyscus were associated positively with the number of live red oaks> 10 cm diameter at breast height per O.25-ha quadrat. Group-selection logging also was associated with increased summer captures of Peromyscus per quadrat for 2 of 4 years, probably due to an increase in both herbaceous cover and fruit production of shrubs.
Spatial and temporal patterns of seed predation on three tree species in an oak-pine forest
... Because the survivorship curve of each treatment in each ex-periment was used in a number of ... more ... Because the survivorship curve of each treatment in each ex-periment was used in a number of multiple compari-sons (ie, comparing survivorship curves ... In 1992, rates of removal of red oakseeds in all five microhabitats were greater for exposure to all seed predators and ...
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Papers by Karen Plucinski