total of 10 pages only may be xeroxed - Memorial University's Digital ...
total of 10 pages only may be xeroxed - Memorial University's Digital ...
total of 10 pages only may be xeroxed - Memorial University's Digital ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
ecords.<br />
Vegetation Rscard.<br />
Grass (Graminellel pollen constitutes cs. 601 <strong>of</strong> the Renews<br />
1660-1680 occupation period pallen spectra that were calculated<br />
from the <strong>total</strong> pollen sun (solid bar histogram) and up to 838 <strong>of</strong><br />
the spectra calculated from non-arboreal pollen <strong>only</strong> (bollor bar<br />
histogram). Sorrel-typ (RmY aCet08ellalacero~a-type), at up to<br />
15% <strong>of</strong> the <strong>total</strong> sun, is the second most prominent type. pine<br />
(ELwsJ, at lo% <strong>of</strong> the <strong>total</strong> nun in the exterlor sample (ps 1). is<br />
the third <strong>be</strong>st represented type, and it is followed by dandeliontype<br />
ILiguliflorael, white spruce (Pisaa olauca-type), barel<br />
(-1, and alder (&h&s), at ca. 7%. At least two <strong>of</strong> the<br />
relatively prominent types, dandelion-type and sorrel-type, are <strong>of</strong><br />
European origin.<br />
Herb pollen starts out st a lover altitude than tree pollen.<br />
Wind velocities are lower in this near-ground zone, and the chance<br />
<strong>of</strong> pollen loss from the wind stream thmugh impact with vegetation<br />
IS hlgher. Herb pollen does not, as a consequence, travel as far cia<br />
tree pollen and rends to doninate locally produced pollen spectra<br />
an open spacer (~ansren 1973:33). Graon pollen. moreover, is a good<br />
indicator <strong>of</strong> relative boll stability, <strong>be</strong>cause the perreoiating<br />
organs <strong>of</strong> grasses are destroyed by plavinq and other extensive sail<br />
dlsturbanctls (8ehre 1983:227). Herb pollen, dominated by grass, is<br />
clearly more important than tree pollen in the Renews spectra,<br />
indicating that the area around the site vae relatively open and<br />
roils were relatively stabls during deposition <strong>of</strong> the 17th century<br />
matrices. The extent to which thls varies from the natural, precontact<br />
condition <strong>of</strong> the locality or the normal situation during<br />
the hrstorlcal era cannot <strong>be</strong> determined from the pollen data<br />
without a canpararive roil pr<strong>of</strong>ile.<br />
The historical era spectra in a pollen sequence from a pond on<br />
cape Breton Island (Livingstone and Livingstone 1958:Fiqre 1) have<br />
larger percentages <strong>of</strong> grass, ragweed-type (--type), and<br />
dock/sorrel-type pollen, than the prehistoric counts. This raisss<br />
the possibility rhat the domination <strong>of</strong> the Renews pollen spectra Ly<br />
grass pollen nay <strong>be</strong> at least partially cultural in origin. ~hio is<br />
certainly true <strong>of</strong> the =xoticr, such as sorrel-type and dandelion<br />
type, but most <strong>of</strong> the herbs are more characteristic <strong>of</strong> waste ground<br />
than <strong>of</strong> actively distur<strong>be</strong>d soils. and it is probable rhat the<br />
gmundcover around the Renews structure was relatively continuous.<br />
~01Ian sample 1 from outside the house sontamed 28% arboreal<br />
(tree) pollen vhlle the interior samples 2. 3, and 4 had 11.258,<br />
16.3%, and 98, respectively. Thin contrast <strong>be</strong>tween the exterior<br />
sanple and the interlor samples is large enough to <strong>be</strong> siymificlmt.<br />
There are also differences in the dandelion-type, goldonrod-type,<br />
sorrel-type, red baneterry (u-type Ranunculoceae), and heath<br />
family (Ericaceae) counts <strong>of</strong> the exterlar and interior sampleathat<br />
appear to <strong>be</strong> sysrenaric. Possible explanations are: different<br />
reasons <strong>of</strong> deposition, different activities inside the house than<br />
Outside, different sources far the matrix, different exposure to<br />
the atmosphere, different sedimentation rates (more or less years<br />
'<br />
!<br />
I