The Effects of Disease, Prey Fluctuation, and Clear-Cutting on American Marten in Newfoundland, Canada
Individual variation in survival and behavior of American marten (Martes americana) was studied in relation to disease, prey fluctuation, and clear-cutting from 10 January 1986 through 20 August 1987 in Newfoundland, Canada. Thirty-seven of forty marten captured on the study area were telemetered an...
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ftutahsudc:oai:digitalcommons.usu.edu:etd-7523 2023-08-27T04:03:48+02:00 The Effects of Disease, Prey Fluctuation, and Clear-Cutting on American Marten in Newfoundland, Canada Fredrickson, Richard J. 1990-05-01T07:00:00Z application/pdf https://digitalcommons.usu.edu/etd/6436 https://doi.org/10.26076/d384-53d7 https://digitalcommons.usu.edu/context/etd/article/7523/viewcontent/1990_Fredrickson_Richard.pdf unknown DigitalCommons@USU https://digitalcommons.usu.edu/etd/6436 doi:10.26076/d384-53d7 https://digitalcommons.usu.edu/context/etd/article/7523/viewcontent/1990_Fredrickson_Richard.pdf Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact digitalcommons@usu.edu. All Graduate Theses and Dissertations disease prey fluctuation population American marten Aquaculture and Fisheries Ecology and Evolutionary Biology Environmental Sciences text 1990 ftutahsudc https://doi.org/10.26076/d384-53d7 2023-08-03T17:36:52Z Individual variation in survival and behavior of American marten (Martes americana) was studied in relation to disease, prey fluctuation, and clear-cutting from 10 January 1986 through 20 August 1987 in Newfoundland, Canada. Thirty-seven of forty marten captured on the study area were telemetered and monitored for part or all of the study. Marten mortality was concentrated in two intervals, fall 1986 and late winter 1987. Mortality during fall 1986 was attributable to encephalitis, while marten deaths during late winter 1987 resulted from predation and starvation attributable to the prey decline. Nonsuppurative encephalitis was first detected 7 October 1986; no further evidence of the disease could be found after 1 November 1986. In early October 1986, declining populations of meadow voles were documented; by June 1987 no voles could be found on the study area. In both mortality periods, young-of-the-year marten had lower survival rates than older marten, and transients survived less well than residents. However, encephalitis appeared to be a less selective mortality agent than the prey decline. Females, considered to be more vulnerable to resource perturbations, had lower survival rates and males higher rates during late winter 1987 than during the disease epizootic. Clear-cutting operations ran from 4 August 1986 through 14 November 1986; 3% (259 ha) of the study area was cut. Marten of all ages avoided clear-cuts during logging operations and for the first nine months afterward. Resident kits made significantly greater use of clear-cuts than older residents and were 3.2 times more likely than older residents to be found within clear-cuts. However, resident kits were 2.6 times and adults 8.3 times more likely to use habitats other than clear-cuts. The decline in prey abundance resulted in several changes in marten movement and spacing behaviors. Intrasexual home range overlap by residents was eliminated. All female residents present before the prey decline either died or abandoned their home ranges. The ratio ... Text American marten Martes americana Newfoundland Utah State University: DigitalCommons@USU Canada |
institution |
Open Polar |
collection |
Utah State University: DigitalCommons@USU |
op_collection_id |
ftutahsudc |
language |
unknown |
topic |
disease prey fluctuation population American marten Aquaculture and Fisheries Ecology and Evolutionary Biology Environmental Sciences |
spellingShingle |
disease prey fluctuation population American marten Aquaculture and Fisheries Ecology and Evolutionary Biology Environmental Sciences Fredrickson, Richard J. The Effects of Disease, Prey Fluctuation, and Clear-Cutting on American Marten in Newfoundland, Canada |
topic_facet |
disease prey fluctuation population American marten Aquaculture and Fisheries Ecology and Evolutionary Biology Environmental Sciences |
description |
Individual variation in survival and behavior of American marten (Martes americana) was studied in relation to disease, prey fluctuation, and clear-cutting from 10 January 1986 through 20 August 1987 in Newfoundland, Canada. Thirty-seven of forty marten captured on the study area were telemetered and monitored for part or all of the study. Marten mortality was concentrated in two intervals, fall 1986 and late winter 1987. Mortality during fall 1986 was attributable to encephalitis, while marten deaths during late winter 1987 resulted from predation and starvation attributable to the prey decline. Nonsuppurative encephalitis was first detected 7 October 1986; no further evidence of the disease could be found after 1 November 1986. In early October 1986, declining populations of meadow voles were documented; by June 1987 no voles could be found on the study area. In both mortality periods, young-of-the-year marten had lower survival rates than older marten, and transients survived less well than residents. However, encephalitis appeared to be a less selective mortality agent than the prey decline. Females, considered to be more vulnerable to resource perturbations, had lower survival rates and males higher rates during late winter 1987 than during the disease epizootic. Clear-cutting operations ran from 4 August 1986 through 14 November 1986; 3% (259 ha) of the study area was cut. Marten of all ages avoided clear-cuts during logging operations and for the first nine months afterward. Resident kits made significantly greater use of clear-cuts than older residents and were 3.2 times more likely than older residents to be found within clear-cuts. However, resident kits were 2.6 times and adults 8.3 times more likely to use habitats other than clear-cuts. The decline in prey abundance resulted in several changes in marten movement and spacing behaviors. Intrasexual home range overlap by residents was eliminated. All female residents present before the prey decline either died or abandoned their home ranges. The ratio ... |
format |
Text |
author |
Fredrickson, Richard J. |
author_facet |
Fredrickson, Richard J. |
author_sort |
Fredrickson, Richard J. |
title |
The Effects of Disease, Prey Fluctuation, and Clear-Cutting on American Marten in Newfoundland, Canada |
title_short |
The Effects of Disease, Prey Fluctuation, and Clear-Cutting on American Marten in Newfoundland, Canada |
title_full |
The Effects of Disease, Prey Fluctuation, and Clear-Cutting on American Marten in Newfoundland, Canada |
title_fullStr |
The Effects of Disease, Prey Fluctuation, and Clear-Cutting on American Marten in Newfoundland, Canada |
title_full_unstemmed |
The Effects of Disease, Prey Fluctuation, and Clear-Cutting on American Marten in Newfoundland, Canada |
title_sort |
effects of disease, prey fluctuation, and clear-cutting on american marten in newfoundland, canada |
publisher |
DigitalCommons@USU |
publishDate |
1990 |
url |
https://digitalcommons.usu.edu/etd/6436 https://doi.org/10.26076/d384-53d7 https://digitalcommons.usu.edu/context/etd/article/7523/viewcontent/1990_Fredrickson_Richard.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
American marten Martes americana Newfoundland |
genre_facet |
American marten Martes americana Newfoundland |
op_source |
All Graduate Theses and Dissertations |
op_relation |
https://digitalcommons.usu.edu/etd/6436 doi:10.26076/d384-53d7 https://digitalcommons.usu.edu/context/etd/article/7523/viewcontent/1990_Fredrickson_Richard.pdf |
op_rights |
Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact digitalcommons@usu.edu. |
op_doi |
https://doi.org/10.26076/d384-53d7 |
_version_ |
1775346883777003520 |