ERA

Download the full-sized PDF of Can the solar cycle and climate synchronize the snowshoe hare cycle in Canada? Evidence from tree rings and ice coresDownload the full-sized PDF

Actions

Download  |  Analytics

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Department of Biological Sciences

Collections

This file is in the following collections:

Journal Articles (Biological Sciences)

Can the solar cycle and climate synchronize the snowshoe hare cycle in Canada? Evidence from tree rings and ice cores Open Access

Descriptions

Author or creator
Sinclair, A.R.
Gosline, J.M.
Holdsworth, G.
Krebs, C.J.
Boutin, S.
Smith, J.N.
Boonstra, R.
Dale, M.
Additional contributors
Subject/Keyword
population biology
Northwestern Minnesota
variability
10-year
signals
records
oscillation
plant secondary compounds
irradiance
temperature
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Dark marks in the rings of white spruce less than 50 yr old in Yukon, Canada, are correlated with the number of stems browsed by snowshoe hares. The frequency of these marks is positively correlated with the density of hares in the same region. The frequency of marks in trees germinating between 1751 and 1983 is positively correlated with the hare fur records of the Hudson Bay Company. Both tree marks and hare numbers are correlated with sunspot numbers, and there is a 10-yr periodicity in the correlograms. Phase analysis shows that tree marks and sunspot numbers have periods of nearly constant phase difference during the years 1751-1787, 1838-1870, and 1948 to the present, and these periods coincide with those of high sunspot maxima. The nearly constant phase relations between the annual net snow accumulation on Mount Logan and (1) tree mark ratios, (2) hare fur records before about 1895, and (3) sunspot number during periods of high amplitude in the cycles suggest there is a solar cycle-climate-hare population and tree mark link. We suggest four ways of testing this hypothesis
Date created
1993
License information
Rights
Copyright 1993 by The University...
Citation for previous publication
Sinclair, AR; Gosline, JM; Holdsworth, G; Krebs, CJ; Boutin, S; Smith, JN; Boonstra, R; Dale, M (1993). "Can the solar cycle and climate synchronize the snowshoe hare cycle in Canada? Evidence from tree rings and ice cores". The American naturalist 141 (2): 173–98. doi:10.1086/285468
Source
Link to related item

File Details

Date Uploaded
Date Modified
2014-04-24T23:40:20.461+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 1700211
Last modified: 2015:10:12 16:06:19-06:00
Filename: The_American_Naturalist_141_1993_173.pdf
Original checksum: e0b047fd6e0300ad7fc2de8901880576
Well formed: false
Valid: false
Status message: Invalid page dictionary object offset=2983
File title: Can the Solar Cycle and Climate Synchronize the Snowshoe Hare Cycle in Canada? Evidence from Tree Rings and Ice Cores
File language: en
Activity of users you follow
User Activity Date