The Temperature-Dependent Development of Varestrongylus eleguneniensis in Experimentally Infected Gastropod Hosts: A Threat with Climate Change?
Varestrongylus eleguneniensis is a protostrongylid parasite infecting various subspecies of muskox, caribou, and moose in the Canadian Arctic. With climate change, its range has expanded in the past decade to novel areas, including Victoria Island. This paper investigates the temperature-dependence...
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ftprincetonuniv:oai:dataspace.princeton.edu:88435/dsp01w9505292c 2023-05-15T15:06:43+02:00 The Temperature-Dependent Development of Varestrongylus eleguneniensis in Experimentally Infected Gastropod Hosts: A Threat with Climate Change? Grond, Sarah Dobson, Andrew 2016-04-01 54 pages http://arks.princeton.edu/ark:/88435/dsp01w9505292c en_US eng http://arks.princeton.edu/ark:/88435/dsp01w9505292c Princeton University Senior Theses 2016 ftprincetonuniv 2022-04-10T20:58:42Z Varestrongylus eleguneniensis is a protostrongylid parasite infecting various subspecies of muskox, caribou, and moose in the Canadian Arctic. With climate change, its range has expanded in the past decade to novel areas, including Victoria Island. This paper investigates the temperature-dependence of the development of this parasite in hopes of understanding how climate change may affect this parasite and parasite-host dynamics in the future. Gastropod hosts (Deroceras laeve) collected from Alberta, Canada were experimentally infected and incubated at both 15oC and 24oC. They were digested at various intervals to determine the developmental time from the L1 to intermediate L3 stage. In Deroceras laeve, there was a direct relationship between larval developmental rate and temperature, and the regression equation y=0.0056x -0.0051 was determined to fit this model. From this equation, it was calculated that larvae of V. eleguneniensis are not expected to develop below the threshold temperature of 9.1oC, and the degree-days of development were determined to be 178.5. Knowledge of these developmental factors allows the direct comparison of V. eleguneniensis with other protostrongylids, and also provides the foundation for predicting future temporal and spatial patterns of this parasite’s distribution and transmission. Bachelor Thesis Arctic Climate change Moose muskox Victoria Island victoria island DataSpace at Princeton University Arctic Canada |
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DataSpace at Princeton University |
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ftprincetonuniv |
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English |
description |
Varestrongylus eleguneniensis is a protostrongylid parasite infecting various subspecies of muskox, caribou, and moose in the Canadian Arctic. With climate change, its range has expanded in the past decade to novel areas, including Victoria Island. This paper investigates the temperature-dependence of the development of this parasite in hopes of understanding how climate change may affect this parasite and parasite-host dynamics in the future. Gastropod hosts (Deroceras laeve) collected from Alberta, Canada were experimentally infected and incubated at both 15oC and 24oC. They were digested at various intervals to determine the developmental time from the L1 to intermediate L3 stage. In Deroceras laeve, there was a direct relationship between larval developmental rate and temperature, and the regression equation y=0.0056x -0.0051 was determined to fit this model. From this equation, it was calculated that larvae of V. eleguneniensis are not expected to develop below the threshold temperature of 9.1oC, and the degree-days of development were determined to be 178.5. Knowledge of these developmental factors allows the direct comparison of V. eleguneniensis with other protostrongylids, and also provides the foundation for predicting future temporal and spatial patterns of this parasite’s distribution and transmission. |
author2 |
Dobson, Andrew |
format |
Bachelor Thesis |
author |
Grond, Sarah |
spellingShingle |
Grond, Sarah The Temperature-Dependent Development of Varestrongylus eleguneniensis in Experimentally Infected Gastropod Hosts: A Threat with Climate Change? |
author_facet |
Grond, Sarah |
author_sort |
Grond, Sarah |
title |
The Temperature-Dependent Development of Varestrongylus eleguneniensis in Experimentally Infected Gastropod Hosts: A Threat with Climate Change? |
title_short |
The Temperature-Dependent Development of Varestrongylus eleguneniensis in Experimentally Infected Gastropod Hosts: A Threat with Climate Change? |
title_full |
The Temperature-Dependent Development of Varestrongylus eleguneniensis in Experimentally Infected Gastropod Hosts: A Threat with Climate Change? |
title_fullStr |
The Temperature-Dependent Development of Varestrongylus eleguneniensis in Experimentally Infected Gastropod Hosts: A Threat with Climate Change? |
title_full_unstemmed |
The Temperature-Dependent Development of Varestrongylus eleguneniensis in Experimentally Infected Gastropod Hosts: A Threat with Climate Change? |
title_sort |
temperature-dependent development of varestrongylus eleguneniensis in experimentally infected gastropod hosts: a threat with climate change? |
publishDate |
2016 |
url |
http://arks.princeton.edu/ark:/88435/dsp01w9505292c |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Climate change Moose muskox Victoria Island victoria island |
genre_facet |
Arctic Climate change Moose muskox Victoria Island victoria island |
op_relation |
http://arks.princeton.edu/ark:/88435/dsp01w9505292c |
_version_ |
1766338268485386240 |